2026-06-03 08:49:27 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-06-03 08:49:27 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-06-03 08:49:27 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-06-03 08:49:27 INFO ::casa 2026-06-03 08:49:27 INFO ::casa config values 2026-06-03 08:49:27 INFO ::casa agg = False 2026-06-03 08:49:27 INFO ::casa cachedir = '/home/casatest/.casa' 2026-06-03 08:49:27 INFO ::casa casaconfig_verbose = 1 2026-06-03 08:49:27 INFO ::casa colors = 'Neutral' 2026-06-03 08:49:27 INFO ::casa data_auto_update = False 2026-06-03 08:49:27 INFO ::casa data_update_interval = 1 2026-06-03 08:49:27 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-06-03 08:49:27 INFO ::casa iplog = False 2026-06-03 08:49:27 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/ipython-20260603-084922.log' 2026-06-03 08:49:27 INFO ::casa log2term = True 2026-06-03 08:49:27 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/casa-20260603-084922.log' 2026-06-03 08:49:27 INFO ::casa measures_auto_update = False 2026-06-03 08:49:27 INFO ::casa measures_site = ['https://www.astron.nl/iers/', 'https://go.nrao.edu/iers/'] 2026-06-03 08:49:27 INFO ::casa measures_site_interval = 2 2026-06-03 08:49:27 INFO ::casa measures_update_interval = 1 2026-06-03 08:49:27 INFO ::casa measurespath = '/opt/casa/data/master' 2026-06-03 08:49:27 INFO ::casa nogui = False 2026-06-03 08:49:27 INFO ::casa nologfile = False 2026-06-03 08:49:27 INFO ::casa nologger = True 2026-06-03 08:49:27 INFO ::casa pipeline = False 2026-06-03 08:49:27 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-06-03 08:49:27 INFO ::casa user_site = False 2026-06-03 08:49:27 INFO ::casa 2026-06-03 08:49:27 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-06-03 08:49:27 INFO ::casa measures version is unknown, this is probably a legacy version not installed by casaconfig 2026-06-03 08:49:27 INFO ::casa 2026-06-03 08:49:27 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-06-03 08:49:27 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/05/28/15:15, 2026/04/28/00:00:00 2026-06-03 08:49:27 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/05/28/15:15, 2026/04/28/00:00:00 2026-06-03 08:49:27 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/06/02/15:15, 2026/08/31/00:00:00 2026-06-03 08:49:27 INFO ::casa TAI_UTC (version date, last date in table (UTC)): 2026/05/30/15:15, 2017/01/01/00:00:00 Running tests... ---------------------------------------------------------------------- Using user configuration file /home/casatest/.casa/config.py No event loop hook running. Using matplotlib backend: agg CASA 6.7.4.5 -- Common Astronomy Software Applications [6.7.4.5] 2026-06-03 08:49:28 INFO phaseshift::::casa ########################################## 2026-06-03 08:49:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:49:28 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'} ) 2026-06-03 08:49:29 INFO MSTransformManager::parseMsSpecParams Input file name is /opt/casa/data/casatestdata/unittest/phaseshift/split11.ms 2026-06-03 08:49:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:49:29 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshift11.ms 2026-06-03 08:49:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:49:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:49:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:49:29 INFO MSTransformManager::open Select data 2026-06-03 08:49:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:49:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-06-03 08:49:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 1h27m38.337s +5d25m38.886s' successfully parsed for field 0 2026-06-03 08:49:35 INFO phaseshift::::casa Shift phase center 2026-06-03 08:49:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:49:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:49:28.340747 End time: 2026-06-03 08:49:35.917125 2026-06-03 08:49:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:49:36 INFO phaseshift::::casa ########################################## .2026-06-03 08:49:36 INFO phaseshift::::casa ########################################## 2026-06-03 08:49:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:49:36 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'} ) 2026-06-03 08:49:36 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-06-03 08:49:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:49:36 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-06-03 08:49:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:49:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:49:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:49:36 INFO MSTransformManager::open Select data 2026-06-03 08:49:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:49:40 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-06-03 08:49:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 19h53m50 40d06m00' successfully parsed for field 0 2026-06-03 08:49:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 22h01m02 40d04m03' successfully parsed for field 2 2026-06-03 08:49:40 INFO phaseshift::::casa Shift phase center 2026-06-03 08:49:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:49:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:49:36.038398 End time: 2026-06-03 08:49:40.384036 2026-06-03 08:49:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:49:40 INFO phaseshift::::casa ########################################## .2026-06-03 08:49:41 INFO phaseshift::::casa ########################################## 2026-06-03 08:49:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:49:41 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'J2000 19h53m50 40d06m00', '3': 'J2000 19h53m50 40d06m00'} ) 2026-06-03 08:49:41 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-06-03 08:49:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:49:41 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-06-03 08:49:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:49:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:49:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:49:41 INFO MSTransformManager::open Select data 2026-06-03 08:49:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:49:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-06-03 08:49:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-06-03 08:49:44 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-06-03 08:49:44 INFO phaseshift::::casa Traceback (most recent call last): 2026-06-03 08:49:44 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-06-03 08:49:44 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'] ) 2026-06-03 08:49:44 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-06-03 08:49:44 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-06-03 08:49:44 INFO phaseshift::::casa+ mtlocal.open() 2026-06-03 08:49:44 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-06-03 08:49:44 INFO phaseshift::::casa+ return self._swigobj.open() 2026-06-03 08:49:44 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-06-03 08:49:44 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-06-03 08:49:44 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-06-03 08:49:44 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-06-03 08:49:44 INFO phaseshift::::casa+ RuntimeError: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-06-03 08:49:44 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:49:40.546451 End time: 2026-06-03 08:49:44.365530 2026-06-03 08:49:44 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:49:44 INFO phaseshift::::casa ########################################## .2026-06-03 08:49:44 INFO phaseshift::::casa ########################################## 2026-06-03 08:49:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:49:44 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'} ) 2026-06-03 08:49:44 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-06-03 08:49:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:49:44 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-06-03 08:49:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:49:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:49:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:49:45 INFO MSTransformManager::open Select data 2026-06-03 08:49:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:49:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-06-03 08:49:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-06-03 08:49:48 INFO phaseshift::::casa Shift phase center 2026-06-03 08:49:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:49:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:49:44.477036 End time: 2026-06-03 08:49:49.215392 2026-06-03 08:49:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:49:49 INFO phaseshift::::casa ########################################## .2026-06-03 08:49:49 INFO phaseshift::::casa ########################################## 2026-06-03 08:49:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:49:49 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'} ) 2026-06-03 08:49:49 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-06-03 08:49:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:49:49 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-06-03 08:49:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:49:49 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-06-03 08:49:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:49:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:49:49 INFO MSTransformManager::open Select data 2026-06-03 08:49:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:49:49 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-06-03 08:49:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-06-03 08:49:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 1 2026-06-03 08:49:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 22h01m02 40d04m03' successfully parsed for field 2 2026-06-03 08:49:53 INFO phaseshift::::casa Shift phase center 2026-06-03 08:49:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:49:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:49:49.407240 End time: 2026-06-03 08:49:55.133961 2026-06-03 08:49:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:49:55 INFO phaseshift::::casa ########################################## .2026-06-03 08:49:55 INFO phaseshift::::casa ########################################## 2026-06-03 08:49:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:49:55 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='0,2', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'ICRS 19h53m50 40d06m00', '2': 'ICRS 22h01m02 40d04m03'} ) 2026-06-03 08:49:55 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-06-03 08:49:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:49:55 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-06-03 08:49:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:49:55 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-06-03 08:49:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:49:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:49:55 INFO MSTransformManager::open Select data 2026-06-03 08:49:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:49:55 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-06-03 08:50:00 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-06-03 08:50:00 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m50 40d06m00' successfully parsed for field 0 2026-06-03 08:50:00 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 22h01m02 40d04m03' successfully parsed for field 2 2026-06-03 08:50:00 INFO phaseshift::::casa Shift phase center 2026-06-03 08:50:00 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:50:00 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:49:55.289092 End time: 2026-06-03 08:50:00.473962 2026-06-03 08:50:00 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:50:00 INFO phaseshift::::casa ########################################## .2026-06-03 08:50:01 INFO phaseshift::::casa ########################################## 2026-06-03 08:50:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:50:01 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' ) 2026-06-03 08:50:01 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-06-03 08:50:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:50:01 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-06-03 08:50:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:50:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:50:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:50:01 INFO MSTransformManager::open Select data 2026-06-03 08:50:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:50:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:50:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-06-03 08:50:06 INFO phaseshift::::casa Shift phase center 2026-06-03 08:50:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:50:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:50:00.593821 End time: 2026-06-03 08:50:07.756629 2026-06-03 08:50:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:50:08 INFO phaseshift::::casa ########################################## ..2026-06-03 08:50:11 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) Requested JD 0 is outside the range of the IERS (Earth axis data) table. 2026-06-03 08:50:11 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) + Calculations will proceed with less precision ..2026-06-03 08:50:11 SEVERE Error in QuantumHolder::fromString with input string "xxh53m50": Illegal input units or format 2026-06-03 08:50:11 SEVERE + in converting quantity from string 2026-06-03 08:50:11 SEVERE Exception Reported: Empty QuantumHolder argument for asQuantumDouble 2026-06-03 08:50:11 SEVERE Exception Reports: Empty QuantumHolder argument for asQuantumDouble 2026-06-03 08:50:11 SEVERE phaseshift::::casa *** Error measures.direction() failed for phasecenter string: BOGUS xxh53m50 40d06m00 when interpreting parameter 'phasecenter': ...2026-06-03 08:50:16 INFO phaseshift::::casa ########################################## 2026-06-03 08:50:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:50:16 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' ) 2026-06-03 08:50:17 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-06-03 08:50:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:50:17 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-06-03 08:50:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:50:17 INFO MSTransformManager::parseDataSelParams array selection is 1 2026-06-03 08:50:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:50:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:50:17 INFO MSTransformManager::open Select data 2026-06-03 08:50:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:50:17 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-06-03 08:50:17 INFO phaseshift::::casa Traceback (most recent call last): 2026-06-03 08:50:17 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-06-03 08:50:17 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'] ) 2026-06-03 08:50:17 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-06-03 08:50:17 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-06-03 08:50:17 INFO phaseshift::::casa+ mtlocal.open() 2026-06-03 08:50:17 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-06-03 08:50:17 INFO phaseshift::::casa+ return self._swigobj.open() 2026-06-03 08:50:17 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-06-03 08:50:17 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-06-03 08:50:17 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-06-03 08:50:17 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-06-03 08:50:17 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-06-03 08:50:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:50:16.499387 End time: 2026-06-03 08:50:16.546232 2026-06-03 08:50:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:50:17 INFO phaseshift::::casa ########################################## 2026-06-03 08:50:17 INFO phaseshift::::casa ########################################## 2026-06-03 08:50:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:50:17 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' ) 2026-06-03 08:50:17 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-06-03 08:50:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:50:17 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-06-03 08:50:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:50:17 INFO MSTransformManager::parseDataSelParams array selection is 0 2026-06-03 08:50:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:50:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:50:17 INFO MSTransformManager::open Select data 2026-06-03 08:50:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:50:46 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-06-03 08:50:46 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-06-03 08:51:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:51:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-06-03 08:51:07 INFO phaseshift::::casa Shift phase center 2026-06-03 08:51:09 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:51:09 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:50:16.547371 End time: 2026-06-03 08:51:08.989675 2026-06-03 08:51:09 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:51:09 INFO phaseshift::::casa ########################################## .2026-06-03 08:51:10 INFO phaseshift::::casa ########################################## 2026-06-03 08:51:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:51:10 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' ) 2026-06-03 08:51:10 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-06-03 08:51:10 INFO MSTransformManager::parseMsSpecParams Data column is MODEL 2026-06-03 08:51:10 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-06-03 08:51:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:51:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:51:10 WARN MSTransformManager::checkDataColumnsToFill MODEL_DATA column requested but not available in input MS 2026-06-03 08:51:10 INFO MSTransformManager::open Select data 2026-06-03 08:51:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:51:10 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). 2026-06-03 08:51:10 INFO phaseshift::::casa Traceback (most recent call last): 2026-06-03 08:51:10 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-06-03 08:51:10 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-06-03 08:51:10 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-06-03 08:51:10 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-06-03 08:51:10 INFO phaseshift::::casa+ mtlocal.open() 2026-06-03 08:51:10 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-06-03 08:51:10 INFO phaseshift::::casa+ return self._swigobj.open() 2026-06-03 08:51:10 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-06-03 08:51:10 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-06-03 08:51:10 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-06-03 08:51:10 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-06-03 08:51:10 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). 2026-06-03 08:51:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:51:09.959370 End time: 2026-06-03 08:51:09.987189 2026-06-03 08:51:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:51:10 INFO phaseshift::::casa ########################################## 2026-06-03 08:51:10 INFO phaseshift::::casa ########################################## 2026-06-03 08:51:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:51:10 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' ) 2026-06-03 08:51:10 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-06-03 08:51:10 INFO MSTransformManager::parseMsSpecParams Data column is DATA 2026-06-03 08:51:10 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-06-03 08:51:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:51:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:51:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:51:10 INFO MSTransformManager::open Select data 2026-06-03 08:51:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:51:14 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-06-03 08:51:14 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-06-03 08:51:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:51:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-06-03 08:51:18 INFO phaseshift::::casa Shift phase center 2026-06-03 08:51:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:51:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:51:09.988117 End time: 2026-06-03 08:51:19.708158 2026-06-03 08:51:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:51:20 INFO phaseshift::::casa ########################################## .2026-06-03 08:51:21 INFO phaseshift::::casa ########################################## 2026-06-03 08:51:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:51:21 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' ) 2026-06-03 08:51:21 INFO MSTransformManager::parseMsSpecParams Input file name is Itziar_copy.ms 2026-06-03 08:51:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:51:21 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-06-03 08:51:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:51:21 INFO MSTransformManager::parseDataSelParams field selection is 2 2026-06-03 08:51:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:51:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:51:21 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:51:21 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:51:21 INFO MSTransformManager::open Select data 2026-06-03 08:51:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:51:21 INFO MSTransformDataHandler::makeSelection 6125 out of 245000 rows are going to be considered due to the selection criteria. 2026-06-03 08:51:26 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:51:26 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 00h00m01 -29d55m40' successfully parsed 2026-06-03 08:51:26 INFO phaseshift::::casa Shift phase center 2026-06-03 08:51:26 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:51:27 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:51:20.744583 End time: 2026-06-03 08:51:26.542660 2026-06-03 08:51:27 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:51:27 INFO phaseshift::::casa ########################################## .2026-06-03 08:51:27 INFO phaseshift::::casa ########################################## 2026-06-03 08:51:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:51:27 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' ) 2026-06-03 08:51:27 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-06-03 08:51:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:51:27 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-06-03 08:51:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:51:27 INFO MSTransformManager::parseDataSelParams scan intent selection is *FLUX* 2026-06-03 08:51:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:51:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:51:27 INFO MSTransformManager::open Select data 2026-06-03 08:51:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:51:27 INFO MSTransformDataHandler::makeSelection 570 out of 6270 rows are going to be considered due to the selection criteria. 2026-06-03 08:51:30 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-06-03 08:51:30 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-06-03 08:51:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:51:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-06-03 08:51:32 INFO phaseshift::::casa Shift phase center 2026-06-03 08:51:33 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:51:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:51:27.425161 End time: 2026-06-03 08:51:32.658964 2026-06-03 08:51:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:51:33 INFO phaseshift::::casa ########################################## .2026-06-03 08:51:34 INFO phaseshift::::casa ########################################## 2026-06-03 08:51:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:51:34 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' ) 2026-06-03 08:51:34 INFO MSTransformManager::parseMsSpecParams Input file name is mms_copy.mms 2026-06-03 08:51:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:51:34 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-06-03 08:51:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:51:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:51:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:51:34 INFO MSTransformManager::open Select data 2026-06-03 08:51:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:51:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:51:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 05h30m48 13d31m48' successfully parsed 2026-06-03 08:51:39 INFO phaseshift::::casa Shift phase center 2026-06-03 08:51:41 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:51:41 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:51:33.974198 End time: 2026-06-03 08:51:40.784713 2026-06-03 08:51:41 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:51:41 INFO phaseshift::::casa ########################################## .2026-06-03 08:51:42 INFO phaseshift::::casa ########################################## 2026-06-03 08:51:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:51:42 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' ) 2026-06-03 08:51:42 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-06-03 08:51:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:51:42 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-06-03 08:51:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:51:42 INFO MSTransformManager::parseDataSelParams observation selection is 1 2026-06-03 08:51:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:51:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:51:42 INFO MSTransformManager::open Select data 2026-06-03 08:51:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:51:42 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-06-03 08:51:42 INFO phaseshift::::casa Traceback (most recent call last): 2026-06-03 08:51:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-06-03 08:51:42 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'] ) 2026-06-03 08:51:42 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-06-03 08:51:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-06-03 08:51:42 INFO phaseshift::::casa+ mtlocal.open() 2026-06-03 08:51:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-06-03 08:51:42 INFO phaseshift::::casa+ return self._swigobj.open() 2026-06-03 08:51:42 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-06-03 08:51:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-06-03 08:51:42 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-06-03 08:51:42 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-06-03 08:51:42 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-06-03 08:51:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:51:41.948469 End time: 2026-06-03 08:51:41.984407 2026-06-03 08:51:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:51:42 INFO phaseshift::::casa ########################################## 2026-06-03 08:51:42 INFO phaseshift::::casa ########################################## 2026-06-03 08:51:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:51:42 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' ) 2026-06-03 08:51:42 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-06-03 08:51:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:51:42 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-06-03 08:51:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:51:42 INFO MSTransformManager::parseDataSelParams observation selection is 0 2026-06-03 08:51:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:51:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:51:42 INFO MSTransformManager::open Select data 2026-06-03 08:51:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:51:45 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-06-03 08:51:45 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-06-03 08:51:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:51:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-06-03 08:51:48 INFO phaseshift::::casa Shift phase center 2026-06-03 08:51:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:51:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:51:41.985426 End time: 2026-06-03 08:51:49.078467 2026-06-03 08:51:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:51:49 INFO phaseshift::::casa ########################################## .2026-06-03 08:51:50 INFO phaseshift::::casa ########################################## 2026-06-03 08:51:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:51:50 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-06-03 08:51:50 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-06-03 08:51:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:51:50 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-06-03 08:51:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:51:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:51:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:51:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:51:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:51:50 INFO MSTransformManager::open Select data 2026-06-03 08:51:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:51:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:51:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-06-03 08:51:54 INFO phaseshift::::casa Shift phase center 2026-06-03 08:51:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:51:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:51:50.350941 End time: 2026-06-03 08:51:55.993363 2026-06-03 08:51:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:51:56 INFO phaseshift::::casa ########################################## .2026-06-03 08:51:57 INFO phaseshift::::casa ########################################## 2026-06-03 08:51:57 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:51:57 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='' ) 2026-06-03 08:51:57 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: phasecenter parameter must be specified 2026-06-03 08:51:57 INFO phaseshift::::casa Traceback (most recent call last): 2026-06-03 08:51:57 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-06-03 08:51:57 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'] ) 2026-06-03 08:51:57 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-06-03 08:51:57 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 31, in phaseshift 2026-06-03 08:51:57 INFO phaseshift::::casa+ raise ValueError("phasecenter parameter must be specified") 2026-06-03 08:51:57 INFO phaseshift::::casa+ ValueError: phasecenter parameter must be specified 2026-06-03 08:51:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:51:57.130811 End time: 2026-06-03 08:51:57.131982 2026-06-03 08:51:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:51:57 INFO phaseshift::::casa ########################################## 2026-06-03 08:51:57 INFO phaseshift::::casa ########################################## 2026-06-03 08:51:57 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:51:57 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' ) 2026-06-03 08:51:57 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-06-03 08:51:57 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:51:57 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-06-03 08:51:57 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:51:57 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:51:57 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:51:57 INFO MSTransformManager::open Select data 2026-06-03 08:51:57 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:52:00 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-06-03 08:52:00 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-06-03 08:52:02 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:52:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -08d23m35' successfully parsed 2026-06-03 08:52:02 INFO phaseshift::::casa Shift phase center 2026-06-03 08:52:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:52:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:51:57.132935 End time: 2026-06-03 08:52:02.769478 2026-06-03 08:52:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:52:03 INFO phaseshift::::casa ########################################## .2026-06-03 08:52:04 INFO phaseshift::::casa ########################################## 2026-06-03 08:52:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:52:04 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='00h06m14 -08d23m35' ) 2026-06-03 08:52:04 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-06-03 08:52:04 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:52:04 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-06-03 08:52:04 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:52:04 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:52:04 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:52:04 INFO MSTransformManager::open Select data 2026-06-03 08:52:04 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:52:08 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-06-03 08:52:09 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-06-03 08:52:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:52:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center '00h06m14 -08d23m35' successfully parsed 2026-06-03 08:52:12 INFO phaseshift::::casa Shift phase center 2026-06-03 08:52:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:52:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:52:03.743746 End time: 2026-06-03 08:52:12.581467 2026-06-03 08:52:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:52:13 INFO phaseshift::::casa ########################################## .2026-06-03 08:52:14 INFO phaseshift::::casa ########################################## 2026-06-03 08:52:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:52:14 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' ) 2026-06-03 08:52:14 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-06-03 08:52:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:52:14 INFO MSTransformManager::parseMsSpecParams Output file name is post_phaseshift.ms 2026-06-03 08:52:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:52:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:52:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:52:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:52:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:52:14 INFO MSTransformManager::open Select data 2026-06-03 08:52:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:52:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:52:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-06-03 08:52:18 INFO phaseshift::::casa Shift phase center 2026-06-03 08:52:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:52:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:52:13.555407 End time: 2026-06-03 08:52:19.832977 2026-06-03 08:52:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:52:20 INFO phaseshift::::casa ########################################## 2026-06-03 08:52:20 INFO tclean::::casa ########################################## 2026-06-03 08:52:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:52:20 INFO tclean::::casa tclean( vis='datacopy.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_pre', imsize=2048, cell='5arcsec', phasecenter='J2000 19h59m28.449 40d44m01.199', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:52:20 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:52:20 INFO SynthesisImagerVi2::selectData MS : datacopy.ms | [Opened in readonly mode] 2026-06-03 08:52:20 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-06-03 08:52:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-06-03 08:52:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-06-03 08:52:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:52:20 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-06-03 08:52:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_pre] with ftmachine : wprojectft 2026-06-03 08:52:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.87 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:52:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:52:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_pre] : hogbom 2026-06-03 08:52:20 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:52:21 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-06-03 08:52:21 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-06-03 08:52:21 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-06-03 08:52:21 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-06-03 08:52:38 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 2026-06-03 08:52:38 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% 2026-06-03 08:53:27 INFO SIImageStore::calcSensitivity [im2_pre] Theoretical sensitivity (Jy/bm):0.00204403 2026-06-03 08:53:27 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.120516 2026-06-03 08:53:27 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-06-03 08:53:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:53:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:53:31 INFO task_tclean::SDAlgorithmBase::restore [im2_pre] : Restoring model image. 2026-06-03 08:53:31 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-06-03 08:53:32 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-06-03 08:53:33 INFO tclean::::casa Searching for images with prefix 'im2_pre'... Found these, writing history into them: ['im2_pre.sumwt', 'im2_pre.model', 'im2_pre.image', 'im2_pre.pb', 'im2_pre.psf', 'im2_pre.residual'] 2026-06-03 08:53:34 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:52:19.938031 End time: 2026-06-03 08:53:34.217866 2026-06-03 08:53:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:53:34 INFO tclean::::casa ########################################## 2026-06-03 08:53:34 INFO tclean::::casa ########################################## 2026-06-03 08:53:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:53:34 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift', imsize=2048, cell='5arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:53:34 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:53:34 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-06-03 08:53:34 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-06-03 08:53:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-06-03 08:53:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-06-03 08:53:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:53:35 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-06-03 08:53:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift] with ftmachine : wprojectft 2026-06-03 08:53:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.86 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:53:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:53:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift] : hogbom 2026-06-03 08:53:35 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:53:35 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-06-03 08:53:35 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-06-03 08:53:35 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-06-03 08:53:35 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-06-03 08:53:51 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-06-03 08:53:51 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 2026-06-03 08:53:54 INFO SIImageStore::calcSensitivity [im2_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00204403 2026-06-03 08:53:54 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.110117 2026-06-03 08:53:54 INFO SIImageStore::printBeamSet Beam : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-06-03 08:53:54 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:53:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:54:06 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift] : Restoring model image. 2026-06-03 08:54:06 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-06-03 08:54:08 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-06-03 08:54:08 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift'... Found these, writing history into them: ['im2_post_phaseshift.residual', 'im2_post_phaseshift.sumwt', 'im2_post_phaseshift.pb', 'im2_post_phaseshift.image', 'im2_post_phaseshift.model', 'im2_post_phaseshift.psf'] 2026-06-03 08:54:09 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:53:34.264074 End time: 2026-06-03 08:54:08.731663 2026-06-03 08:54:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:54:09 INFO tclean::::casa ########################################## 2026-06-03 08:54:09 INFO tclean::::casa ########################################## 2026-06-03 08:54:09 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:54:09 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift_tclean_phasecenter', imsize=2048, cell='5arcsec', phasecenter='J2000 19h59m28.449 40d44m01.199', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:54:09 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:54:09 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-06-03 08:54:09 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-06-03 08:54:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-06-03 08:54:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-06-03 08:54:09 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:54:09 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-06-03 08:54:09 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift_tclean_phasecenter] with ftmachine : wprojectft 2026-06-03 08:54:09 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.86 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:54:09 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:54:09 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift_tclean_phasecenter] : hogbom 2026-06-03 08:54:09 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:54:10 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-06-03 08:54:10 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-06-03 08:54:10 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-06-03 08:54:10 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-06-03 08:54:25 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-06-03 08:54:25 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 2026-06-03 08:54:29 INFO SIImageStore::calcSensitivity [im2_post_phaseshift_tclean_phasecenter] Theoretical sensitivity (Jy/bm):0.00204403 2026-06-03 08:54:29 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.11956 2026-06-03 08:54:29 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-06-03 08:54:29 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:54:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:54:33 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift_tclean_phasecenter] : Restoring model image. 2026-06-03 08:54:33 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-06-03 08:54:34 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-06-03 08:54:35 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift_tclean_phasecenter'... Found these, writing history into them: ['im2_post_phaseshift_tclean_phasecenter.residual', 'im2_post_phaseshift_tclean_phasecenter.psf', 'im2_post_phaseshift_tclean_phasecenter.image', 'im2_post_phaseshift_tclean_phasecenter.model', 'im2_post_phaseshift_tclean_phasecenter.pb', 'im2_post_phaseshift_tclean_phasecenter.sumwt'] 2026-06-03 08:54:36 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:54:08.776347 End time: 2026-06-03 08:54:35.947863 2026-06-03 08:54:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:54:36 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} .2026-06-03 08:54:37 INFO phaseshift::::casa ########################################## 2026-06-03 08:54:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:54:37 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' ) 2026-06-03 08:54:37 INFO MSTransformManager::parseMsSpecParams Input file name is ngc_copy.ms 2026-06-03 08:54:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:54:37 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-06-03 08:54:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:54:37 INFO MSTransformManager::parseDataSelParams spw selection is 1 2026-06-03 08:54:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:54:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:54:37 INFO MSTransformManager::initDataSelectionParams Selected SPWs Ids are Axis Lengths: [1, 4] (NB: Matrix in Row/Column order) 2026-06-03 08:54:37 INFO MSTransformManager::initDataSelectionParams+ [1, 0, 4, 1] 2026-06-03 08:54:37 INFO MSTransformManager::open Select data 2026-06-03 08:54:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:54:37 INFO MSTransformDataHandler::makeSelection 13338 out of 26676 rows are going to be considered due to the selection criteria. 2026-06-03 08:54:41 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:54:41 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 23h11m54 61d10m54' successfully parsed 2026-06-03 08:54:41 INFO phaseshift::::casa Shift phase center 2026-06-03 08:54:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:54:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:54:37.381215 End time: 2026-06-03 08:54:42.801637 2026-06-03 08:54:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:54:43 INFO phaseshift::::casa ########################################## .2026-06-03 08:54:44 INFO phaseshift::::casa ########################################## 2026-06-03 08:54:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:54:44 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-06-03 08:54:44 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-06-03 08:54:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:54:44 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-06-03 08:54:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:54:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:54:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:54:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:54:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:54:44 INFO MSTransformManager::open Select data 2026-06-03 08:54:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:54:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:54:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-06-03 08:54:49 INFO phaseshift::::casa Shift phase center 2026-06-03 08:54:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:54:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:54:43.701156 End time: 2026-06-03 08:54:51.184971 2026-06-03 08:54:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:54:51 INFO phaseshift::::casa ########################################## .2026-06-03 08:54:52 INFO phaseshift::::casa ########################################## 2026-06-03 08:54:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:54:52 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' ) 2026-06-03 08:54:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:54:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:54:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:54:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:54:52 INFO MSTransformManager::parseDataSelParams field selection is 0 2026-06-03 08:54:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:54:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:54:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:54:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:54:52 INFO MSTransformManager::open Select data 2026-06-03 08:54:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:54:52 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-06-03 08:54:58 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:54:58 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-06-03 08:54:58 INFO phaseshift::::casa Shift phase center 2026-06-03 08:55:00 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:55:00 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:54:51.915153 End time: 2026-06-03 08:54:59.703363 2026-06-03 08:55:00 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:55:00 INFO phaseshift::::casa ########################################## 2026-06-03 08:55:00 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-06-03 08:55:00 INFO tclean::::casa ########################################## 2026-06-03 08:55:00 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:55:00 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:55:00 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:55:00 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:55:00 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-06-03 08:55:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:55:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:55:00 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:55:00 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-06-03 08:55:00 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:55:00 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.86 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:55:00 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:55:00 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:55:00 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:55:03 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-06-03 08:55:03 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.031456 2026-06-03 08:55:03 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-06-03 08:55:03 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:55:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:55:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 08:55:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:55:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:55:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 08:55:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:55:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-06-03 08:55:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 08:55:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 08:55:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:55:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 08:55:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:55:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-06-03 08:55:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-06-03 08:55:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 08:55:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 08:55:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-06-03 08:55:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:55:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-06-03 08:55:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-06-03 08:55:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 08:55:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 08:55:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-06-03 08:55:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:55:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-06-03 08:55:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-06-03 08:55:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:55:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 08:55:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-06-03 08:55:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:55:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:55:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 08:55:19 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-06-03 08:55:19 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 08:55:21 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:55:00.043981 End time: 2026-06-03 08:55:21.014843 2026-06-03 08:55:21 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:55:21 INFO tclean::::casa ########################################## 2026-06-03 08:55:21 INFO imstat::::casa ########################################## 2026-06-03 08:55:21 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:55:21 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 08:55:21 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:55:21 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:55:21 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:55:21 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 08:55:21 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:55:21 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz to 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz) 2026-06-03 08:55:21 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:55:21 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:55:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:55:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 08:55:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-06-03 08:55:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-06-03 08:55:21 INFO imstat:::: Values --- 2026-06-03 08:55:21 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-06-03 08:55:21 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 08:55:21 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 08:55:21 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-06-03 08:55:21 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-06-03 08:55:21 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-06-03 08:55:21 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-06-03 08:55:21 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-06-03 08:55:21 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-06-03 08:55:21 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-06-03 08:55:21 INFO imstat:::: Statistics --- 2026-06-03 08:55:21 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-06-03 08:55:21 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-06-03 08:55:21 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-06-03 08:55:21 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-06-03 08:55:21 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-06-03 08:55:21 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-06-03 08:55:21 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-06-03 08:55:21 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-06-03 08:55:21 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-06-03 08:55:21 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:55:21 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:55:21 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:55:21 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:55:21 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:55:21 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:55:21 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.059610e+02 9.246232e-03 1.521305e-01 1.518505e-01 -1.228298e-04 4.999997e+00 2026-06-03 08:55:21 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:55:21.044723 End time: 2026-06-03 08:55:21.083029 2026-06-03 08:55:21 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:55:21 INFO imstat::::casa ########################################## 2026-06-03 08:55:21 INFO phaseshift::::casa ########################################## 2026-06-03 08:55:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:55:21 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='fake', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-06-03 08:55:21 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:55:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:55:21 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:55:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:55:21 INFO MSTransformManager::parseDataSelParams field selection is fake 2026-06-03 08:55:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:55:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:55:21 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:55:21 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:55:21 INFO MSTransformManager::open Select data 2026-06-03 08:55:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:55:21 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-06-03 08:55:31 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:55:31 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-06-03 08:55:31 INFO phaseshift::::casa Shift phase center 2026-06-03 08:55:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:55:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:55:21.101560 End time: 2026-06-03 08:55:32.392003 2026-06-03 08:55:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:55:32 INFO phaseshift::::casa ########################################## 2026-06-03 08:55:32 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-06-03 08:55:32 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-06-03 08:55:32 INFO tclean::::casa ########################################## 2026-06-03 08:55:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:55:32 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:55:32 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:55:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:55:32 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-06-03 08:55:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:55:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:55:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:55:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-06-03 08:55:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:55:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.85 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:55:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:55:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:55:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:55:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-06-03 08:55:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.03383 2026-06-03 08:55:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-06-03 08:55:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:55:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:55:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 08:55:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:55:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:55:39 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 08:55:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:55:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-06-03 08:55:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 08:55:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 08:55:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:55:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 08:55:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:55:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-06-03 08:55:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-06-03 08:55:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 08:55:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 08:55:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-06-03 08:55:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:55:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-06-03 08:55:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-06-03 08:55:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 08:55:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 08:55:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-06-03 08:55:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:55:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-06-03 08:55:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-06-03 08:55:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:55:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 08:55:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-06-03 08:55:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:55:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:55:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 08:55:47 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-06-03 08:55:47 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 08:55:49 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:55:32.483385 End time: 2026-06-03 08:55:48.600473 2026-06-03 08:55:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:55:49 INFO tclean::::casa ########################################## 2026-06-03 08:55:49 INFO imstat::::casa ########################################## 2026-06-03 08:55:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:55:49 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 ) 2026-06-03 08:55:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:55:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:55:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:55:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 08:55:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:55:49 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) 2026-06-03 08:55:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:55:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:55:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:55:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 08:55:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-06-03 08:55:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-06-03 08:55:49 INFO imstat:::: Values --- 2026-06-03 08:55:49 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-06-03 08:55:49 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 08:55:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 08:55:49 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-06-03 08:55:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-06-03 08:55:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-06-03 08:55:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-06-03 08:55:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-06-03 08:55:49 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-06-03 08:55:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-06-03 08:55:49 INFO imstat:::: Statistics --- 2026-06-03 08:55:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-06-03 08:55:49 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-06-03 08:55:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-06-03 08:55:49 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-06-03 08:55:49 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-06-03 08:55:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-06-03 08:55:49 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-06-03 08:55:49 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-06-03 08:55:49 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-06-03 08:55:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:55:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:55:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:55:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:55:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:55:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:55:49 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 2026-06-03 08:55:49 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:55:48.605523 End time: 2026-06-03 08:55:48.643113 2026-06-03 08:55:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:55:49 INFO imstat::::casa ########################################## 2026-06-03 08:55:49 INFO phaseshift::::casa ########################################## 2026-06-03 08:55:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:55:49 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-06-03 08:55:49 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:55:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:55:49 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:55:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:55:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:55:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:55:49 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:55:49 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:55:49 INFO MSTransformManager::open Select data 2026-06-03 08:55:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:55:51 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:55:51 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-06-03 08:55:51 INFO phaseshift::::casa Shift phase center 2026-06-03 08:55:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:55:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:55:48.663025 End time: 2026-06-03 08:55:52.365998 2026-06-03 08:55:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:55:52 INFO phaseshift::::casa ########################################## 2026-06-03 08:55:52 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-06-03 08:55:53 INFO tclean::::casa ########################################## 2026-06-03 08:55:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:55:53 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:55:53 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:55:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:55:53 INFO SynthesisImagerVi2::selectData NRows selected : 7020 2026-06-03 08:55:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:55:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:55:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:55:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 08:55:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:55:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.85 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:55:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:55:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:55:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:55:54 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00843949 2026-06-03 08:55:54 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020535 2026-06-03 08:55:54 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-06-03 08:55:54 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:55:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:55:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 08:55:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:55:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:55:56 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 08:55:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6069034934043884, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:55:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.606903, CycleNiter=20, Gain=0.3 2026-06-03 08:55:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 08:55:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 08:55:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:55:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 08:55:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07140088081359863, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:55:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0714009, CycleNiter=14, Gain=0.3 2026-06-03 08:55:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-06-03 08:55:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 08:55:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 08:55:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-06-03 08:55:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00840018317103386, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:55:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00840018, CycleNiter=8, Gain=0.3 2026-06-03 08:55:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-06-03 08:55:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 08:55:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 08:56:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814189, over full image : 0.00814189 2026-06-03 08:56:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009882674785330892, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:56:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000988267, CycleNiter=2, Gain=0.3 2026-06-03 08:56:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814189->0.00279267, Reached cycleniter. 2026-06-03 08:56:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:56:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 08:56:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0027928, over full image : 0.0027928 2026-06-03 08:56:03 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:56:03 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:56:03 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 08:56:04 INFO SIImageStore::restore Beam for chan : 0 : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-06-03 08:56:04 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 08:56:06 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:55:52.509012 End time: 2026-06-03 08:56:05.677250 2026-06-03 08:56:06 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:56:06 INFO tclean::::casa ########################################## 2026-06-03 08:56:06 INFO imstat::::casa ########################################## 2026-06-03 08:56:06 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:56:06 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 08:56:06 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:56:06 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:56:06 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:56:06 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 08:56:06 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:56:06 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) 2026-06-03 08:56:06 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:56:06 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:56:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:56:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 08:56:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 999981604.64Hz 2026-06-03 08:56:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 999981604.64Hz 2026-06-03 08:56:06 INFO imstat:::: Values --- 2026-06-03 08:56:06 INFO imstat:::: -- flux density [flux]: 4.99444 Jy 2026-06-03 08:56:06 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 08:56:06 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 08:56:06 INFO imstat:::: -- minimum value [min]: -9.70533e-05 Jy/beam 2026-06-03 08:56:06 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-06-03 08:56:06 INFO imstat:::: -- position of min value (pixel) [minpos]: [158, 70, 0, 0] 2026-06-03 08:56:06 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981604.64Hz 2026-06-03 08:56:06 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:29.120, +39.58.47.882, I, 999981604.64Hz 2026-06-03 08:56:06 INFO imstat:::: -- Sum of pixel values [sum]: 610.203 Jy/beam 2026-06-03 08:56:06 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1527.26 Jy/beam.Jy/beam 2026-06-03 08:56:06 INFO imstat:::: Statistics --- 2026-06-03 08:56:06 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00931096 Jy/beam 2026-06-03 08:56:06 INFO imstat:::: -- Variance of the pixel values : 0.0232178 Jy/beam 2026-06-03 08:56:06 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152374 Jy/beam 2026-06-03 08:56:06 INFO imstat:::: -- Root mean square [rms]: 0.152657 Jy/beam 2026-06-03 08:56:06 INFO imstat:::: -- Median of the pixel values [median]: -1.85752e-05 Jy/beam 2026-06-03 08:56:06 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.83975e-05 Jy/beam 2026-06-03 08:56:06 INFO imstat:::: -- IQR [quartile]: 3.74524e-05 Jy/beam 2026-06-03 08:56:06 INFO imstat:::: -- First quartile [q1]: -3.53147e-05 Jy/beam 2026-06-03 08:56:06 INFO imstat:::: -- Third quartile [q3]: 2.13765e-06 Jy/beam 2026-06-03 08:56:06 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:56:06 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:56:06 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:56:06 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:56:06 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:56:06 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:56:06 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 2026-06-03 08:56:06 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:56:05.682811 End time: 2026-06-03 08:56:05.723575 2026-06-03 08:56:06 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:56:06 INFO imstat::::casa ########################################## 2026-06-03 08:56:06 INFO phaseshift::::casa ########################################## 2026-06-03 08:56:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:56:06 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' ) 2026-06-03 08:56:06 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:56:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:56:06 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:56:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:56:06 INFO MSTransformManager::parseDataSelParams field selection is 1 2026-06-03 08:56:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:56:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:56:06 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:56:06 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:56:06 INFO MSTransformManager::open Select data 2026-06-03 08:56:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:56:06 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-06-03 08:56:09 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:56:09 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-06-03 08:56:09 INFO phaseshift::::casa Shift phase center 2026-06-03 08:56:11 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:56:11 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:56:05.745468 End time: 2026-06-03 08:56:10.615468 2026-06-03 08:56:11 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:56:11 INFO phaseshift::::casa ########################################## 2026-06-03 08:56:11 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-06-03 08:56:11 INFO tclean::::casa ########################################## 2026-06-03 08:56:11 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:56:11 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, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:56:11 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:56:11 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:56:11 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-06-03 08:56:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:56:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:56:11 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:56:11 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-06-03 08:56:11 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:56:11 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.85 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:56:11 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:56:11 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:56:11 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:56:13 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-06-03 08:56:13 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025582 2026-06-03 08:56:13 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-06-03 08:56:13 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:56:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:56:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-06-03 08:56:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:56:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:56:16 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-06-03 08:56:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:56:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-06-03 08:56:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-06-03 08:56:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:56:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:56:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-06-03 08:56:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:56:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:56:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 08:56:18 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-06-03 08:56:19 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 08:56:20 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:56:10.770099 End time: 2026-06-03 08:56:19.871985 2026-06-03 08:56:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:56:20 INFO tclean::::casa ########################################## 2026-06-03 08:56:20 INFO imstat::::casa ########################################## 2026-06-03 08:56:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:56:20 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 ) 2026-06-03 08:56:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:56:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:56:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:56:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 08:56:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:56:20 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) 2026-06-03 08:56:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:56:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:56:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:56:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 08:56:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-06-03 08:56:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-06-03 08:56:20 INFO imstat:::: Values --- 2026-06-03 08:56:20 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-06-03 08:56:20 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 08:56:20 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-06-03 08:56:20 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-06-03 08:56:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-06-03 08:56:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-06-03 08:56:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-06-03 08:56:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-06-03 08:56:20 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-06-03 08:56:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-06-03 08:56:20 INFO imstat:::: Statistics --- 2026-06-03 08:56:20 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-06-03 08:56:20 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-06-03 08:56:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-06-03 08:56:20 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-06-03 08:56:20 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-06-03 08:56:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-06-03 08:56:20 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-06-03 08:56:20 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-06-03 08:56:20 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-06-03 08:56:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:56:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:56:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:56:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:56:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:56:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:56:20 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 2026-06-03 08:56:20 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:56:19.876833 End time: 2026-06-03 08:56:19.921464 2026-06-03 08:56:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:56:20 INFO imstat::::casa ########################################## 2026-06-03 08:56:20 INFO phaseshift::::casa ########################################## 2026-06-03 08:56:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:56:20 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' ) 2026-06-03 08:56:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:56:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:56:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:56:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:56:20 INFO MSTransformManager::parseDataSelParams field selection is pretend 2026-06-03 08:56:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:56:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:56:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:56:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:56:20 INFO MSTransformManager::open Select data 2026-06-03 08:56:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:56:20 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-06-03 08:56:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:56:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-06-03 08:56:23 INFO phaseshift::::casa Shift phase center 2026-06-03 08:56:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:56:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:56:19.940566 End time: 2026-06-03 08:56:23.872249 2026-06-03 08:56:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:56:24 INFO phaseshift::::casa ########################################## 2026-06-03 08:56:24 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-06-03 08:56:24 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-06-03 08:56:24 INFO tclean::::casa ########################################## 2026-06-03 08:56:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:56:24 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:56:24 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:56:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:56:24 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-06-03 08:56:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:56:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:56:24 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:56:24 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-06-03 08:56:24 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:56:24 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.85 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:56:24 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:56:24 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:56:24 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:56:25 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-06-03 08:56:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029878 2026-06-03 08:56:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-06-03 08:56:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:56:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:56:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-06-03 08:56:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:56:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:56:28 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-06-03 08:56:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:56:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-06-03 08:56:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-06-03 08:56:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:56:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:56:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-06-03 08:56:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:56:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:56:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 08:56:30 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-06-03 08:56:30 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 08:56:31 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:56:23.958544 End time: 2026-06-03 08:56:30.757285 2026-06-03 08:56:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:56:31 INFO tclean::::casa ########################################## 2026-06-03 08:56:31 INFO imstat::::casa ########################################## 2026-06-03 08:56:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:56:31 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 ) 2026-06-03 08:56:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:56:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:56:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:56:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 08:56:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:56:31 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) 2026-06-03 08:56:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:56:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:56:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:56:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 08:56:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-06-03 08:56:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-06-03 08:56:31 INFO imstat:::: Values --- 2026-06-03 08:56:31 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-06-03 08:56:31 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 08:56:31 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-06-03 08:56:31 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-06-03 08:56:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-06-03 08:56:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-06-03 08:56:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-06-03 08:56:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-06-03 08:56:31 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-06-03 08:56:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-06-03 08:56:31 INFO imstat:::: Statistics --- 2026-06-03 08:56:31 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-06-03 08:56:31 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-06-03 08:56:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-06-03 08:56:31 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-06-03 08:56:31 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-06-03 08:56:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-06-03 08:56:31 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-06-03 08:56:31 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-06-03 08:56:31 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-06-03 08:56:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:56:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:56:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:56:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:56:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:56:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:56:31 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 2026-06-03 08:56:31 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:56:30.762499 End time: 2026-06-03 08:56:30.801173 2026-06-03 08:56:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:56:31 INFO imstat::::casa ########################################## .2026-06-03 08:56:31 INFO tclean::::casa ########################################## 2026-06-03 08:56:31 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:56:31 INFO tclean::::casa tclean( vis='sim_data.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_orig', imsize=2048, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:56:31 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:56:31 INFO SynthesisImagerVi2::selectData MS : sim_data.ms | [Opened in readonly mode] 2026-06-03 08:56:31 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 08:56:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-06-03 08:56:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-06-03 08:56:31 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:56:31 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [9.99981e+08] at [0] with increment [1e+08] 2026-06-03 08:56:31 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_orig] with ftmachine : wprojectft 2026-06-03 08:56:31 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.85 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:56:31 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:56:31 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_orig] : hogbom 2026-06-03 08:56:31 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:56:32 INFO task_tclean::WPConvFunc::findConvFunction W projection using 128 planes 2026-06-03 08:56:32 INFO task_tclean::WPConvFunc::findConvFunction Using maximum possible W = 6445.78 (wavelengths) 2026-06-03 08:56:32 INFO task_tclean::WPConvFunc::findConvFunction Typical wavelength = 0.299799 (m) 2026-06-03 08:56:32 INFO task_tclean::WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.399639 wavelengths per pixel 2026-06-03 08:56:48 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 2026-06-03 08:56:48 INFO task_tclean::WPConvFunc::findConvFunction Memory used in gridding function = 14 MB from maximum 64265 MB 2026-06-03 08:56:51 INFO task_tclean::SIImageStore::calcSensitivity [im_orig] Theoretical sensitivity (Jy/bm):0.00889437 2026-06-03 08:56:52 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.129044 2026-06-03 08:56:52 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-06-03 08:56:52 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:56:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:56:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 4.94899 2026-06-03 08:56:56 INFO SynthesisDeconvolver::setupMask [im_orig] Initializing new mask to 1.0 for the full image 2026-06-03 08:56:56 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 % ] 2026-06-03 08:56:56 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 4.94899, over full image : 4.94899 2026-06-03 08:56:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.5971387624740601, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:56:56 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.597139, CycleNiter=20, Gain=0.3 2026-06-03 08:56:58 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=0->4.6028, peakres=4.94899->0.435227, Reached cyclethreshold. 2026-06-03 08:56:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 7 iterations. 2026-06-03 08:56:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:57:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.45574, over full image : 0.45574 2026-06-03 08:57:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 13, 'cyclethreshold': 0.05498892068862915, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:57:02 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.0549889, CycleNiter=13, Gain=0.3 2026-06-03 08:57:03 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=4.6028->5.02619, peakres=0.45574->0.0435268, Reached cyclethreshold. 2026-06-03 08:57:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 14 iterations. 2026-06-03 08:57:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 08:57:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0416506, over full image : 0.0416506 2026-06-03 08:57:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 6, 'cyclethreshold': 0.005025505553930998, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:57:07 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.00502551, CycleNiter=6, Gain=0.3 2026-06-03 08:57:09 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->6 [6], model=5.02619->5.04001, peakres=0.0416506->0.0226678, Reached cycleniter. 2026-06-03 08:57:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:57:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 08:57:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.022671, over full image : 0.022671 2026-06-03 08:57:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:57:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:57:12 INFO SDAlgorithmBase::restore [im_orig] : Restoring model image. 2026-06-03 08:57:15 INFO SIImageStore::restore Beam for chan : 0 : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-06-03 08:57:16 INFO tclean::::casa Searching for images with prefix 'im_orig'... Found these, writing history into them: ['im_orig.model', 'im_orig.sumwt', 'im_orig.residual', 'im_orig.psf', 'im_orig.pb', 'im_orig.image', 'im_orig.mask'] 2026-06-03 08:57:17 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:56:31.378939 End time: 2026-06-03 08:57:17.095040 2026-06-03 08:57:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:57:17 INFO tclean::::casa ########################################## 2026-06-03 08:57:17 INFO imstat::::casa ########################################## 2026-06-03 08:57:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:57:17 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 ) 2026-06-03 08:57:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:57:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:57:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:57:17 INFO imstat::image::statistics Determining stats for image im_orig.image 2026-06-03 08:57:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:57:17 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) 2026-06-03 08:57:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:57:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:57:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:57:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [2047, 2047, 0, 0] 2026-06-03 08:57:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 20:11:05.220, +38.21.11.967, I, 999980841.3Hz 2026-06-03 08:57:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:47:03.322, +42.54.02.996, I, 999980841.3Hz 2026-06-03 08:57:17 INFO imstat:::: Values --- 2026-06-03 08:57:17 INFO imstat:::: -- flux density [flux]: 5.2713 Jy 2026-06-03 08:57:17 INFO imstat:::: -- number of points [npts]: 4.1943e+06 2026-06-03 08:57:17 INFO imstat:::: -- maximum value [max]: 4.97713 Jy/beam 2026-06-03 08:57:17 INFO imstat:::: -- minimum value [min]: -0.022671 Jy/beam 2026-06-03 08:57:17 INFO imstat:::: -- position of max value (pixel) [maxpos]: [1509, 773, 0, 0] 2026-06-03 08:57:17 INFO imstat:::: -- position of min value (pixel) [minpos]: [1708, 965, 0, 0] 2026-06-03 08:57:17 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.302, +40.06.02.372, I, 999980841.3Hz 2026-06-03 08:57:17 INFO imstat:::: -- position of min value (world) [minposf]: 19:51:28.525, +40.31.07.260, I, 999980841.3Hz 2026-06-03 08:57:17 INFO imstat:::: -- Sum of pixel values [sum]: 641.87 Jy/beam 2026-06-03 08:57:17 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1619.58 Jy/beam.Jy/beam 2026-06-03 08:57:17 INFO imstat:::: Statistics --- 2026-06-03 08:57:17 INFO imstat:::: -- Mean of the pixel values [mean]: 0.000153034 Jy/beam 2026-06-03 08:57:17 INFO imstat:::: -- Variance of the pixel values : 0.000386116 Jy/beam 2026-06-03 08:57:17 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0196498 Jy/beam 2026-06-03 08:57:17 INFO imstat:::: -- Root mean square [rms]: 0.0196504 Jy/beam 2026-06-03 08:57:17 INFO imstat:::: -- Median of the pixel values [median]: 4.61875e-06 Jy/beam 2026-06-03 08:57:17 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.003161 Jy/beam 2026-06-03 08:57:17 INFO imstat:::: -- IQR [quartile]: 0.00632194 Jy/beam 2026-06-03 08:57:17 INFO imstat:::: -- First quartile [q1]: -0.00315521 Jy/beam 2026-06-03 08:57:17 INFO imstat:::: -- Third quartile [q3]: 0.00316673 Jy/beam 2026-06-03 08:57:17 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:57:17 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:57:17 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:57:17 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:57:17 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:57:17 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:57:17 INFO imstat::ImageStatsCalculator::statistics 4.194304e+06 6.418701e+02 1.530337e-04 1.965042e-02 1.964982e-02 -2.267100e-02 4.977134e+00 2026-06-03 08:57:17 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:57:17.100901 End time: 2026-06-03 08:57:17.413597 2026-06-03 08:57:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:57:17 INFO imstat::::casa ########################################## 2026-06-03 08:57:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 08:57:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:57:17 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) 2026-06-03 08:57:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 08:57:17 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 08:57:17 2026****** 2026-06-03 08:57:17 INFO ImageFitter::fit+ 2026-06-03 08:57:17 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 08:57:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_orig.image 2026-06-03 08:57:17 INFO ImageFitter::fit+ --- region: 2026-06-03 08:57:17 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 08:57:17 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 08:57:17 INFO ImageFitter::fit+ --- mask: 2026-06-03 08:57:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 08:57:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 08:57:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 08:57:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:57:17 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) 2026-06-03 08:57:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29832 Jy 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00459192 Jy 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85855 Jy 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00458731 Jy 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ Fit on im_orig.image component 0 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.9885 +/- 0.0032 s (0.0367 arcsec along great circle) 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.0594 +/- 0.0281 arcsec 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- ra: 1509.4535 +/- 0.0046 pixels 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- dec: 772.7181 +/- 0.0035 pixels 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.4778 +/- 0.0014 arcmin 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.2915 +/- 0.0011 arcmin 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.42 +/- 0.26 deg 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.70 arcsec 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.54 arcsec 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- position angle: -89.60 deg 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ Component is a point source 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ An upper limit on its size cannot be determined 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.0049 +/- 0.0079 Jy 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- Peak: 5.0102 +/- 0.0046 Jy/beam 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 08:57:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9808 MHz (29.97982 cm) 2026-06-03 08:57:17 INFO phaseshift::::casa ########################################## 2026-06-03 08:57:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:57:17 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-06-03 08:57:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:57:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:57:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:57:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:57:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:57:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:57:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:57:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:57:18 INFO MSTransformManager::open Select data 2026-06-03 08:57:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:57:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:57:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-06-03 08:57:23 INFO phaseshift::::casa Shift phase center 2026-06-03 08:57:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:57:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:57:17.489479 End time: 2026-06-03 08:57:24.426272 2026-06-03 08:57:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:57:24 INFO phaseshift::::casa ########################################## 2026-06-03 08:57:25 INFO tclean::::casa ########################################## 2026-06-03 08:57:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:57:25 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:57:25 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:57:25 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:57:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 08:57:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:57:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:57:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:57:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 08:57:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:57:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.79 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:57:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:57:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:57:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:57:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 08:57:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028887 2026-06-03 08:57:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:57:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:57:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:57:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 08:57:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:57:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:57:28 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 08:57:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:57:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 08:57:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 08:57:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 08:57:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:57:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 08:57:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:57:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 08:57:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 08:57:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 08:57:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 08:57:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 08:57:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:57:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 08:57:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 08:57:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 08:57:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 08:57:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 08:57:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:57:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 08:57:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 08:57:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:57:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 08:57:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 08:57:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:57:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:57:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 08:57:37 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:57:37 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 08:57:39 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:57:24.557238 End time: 2026-06-03 08:57:38.988949 2026-06-03 08:57:39 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:57:39 INFO tclean::::casa ########################################## 2026-06-03 08:57:39 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 08:57:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:57:39 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) 2026-06-03 08:57:39 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 08:57:39 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 08:57:39 2026****** 2026-06-03 08:57:39 INFO ImageFitter::fit+ 2026-06-03 08:57:39 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 08:57:39 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 08:57:39 INFO ImageFitter::fit+ --- region: 2026-06-03 08:57:39 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 08:57:39 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 08:57:39 INFO ImageFitter::fit+ --- mask: 2026-06-03 08:57:39 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 08:57:39 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 08:57:39 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 08:57:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:57:39 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) 2026-06-03 08:57:39 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 08:57:39 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 08:57:39 INFO imstat::::casa ########################################## 2026-06-03 08:57:39 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:57:39 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 ) 2026-06-03 08:57:39 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:57:39 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:57:39 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:57:39 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 08:57:39 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:57:39 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 08:57:39 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:57:39 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:57:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:57:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 08:57:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 08:57:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 08:57:39 INFO imstat:::: Values --- 2026-06-03 08:57:39 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 08:57:39 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 08:57:39 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 08:57:39 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-06-03 08:57:39 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 08:57:39 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 08:57:39 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 08:57:39 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 08:57:39 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 08:57:39 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 08:57:39 INFO imstat:::: Statistics --- 2026-06-03 08:57:39 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 08:57:39 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 08:57:39 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 08:57:39 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 08:57:39 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-06-03 08:57:39 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-06-03 08:57:39 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-06-03 08:57:39 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-06-03 08:57:39 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-06-03 08:57:39 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:57:39 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:57:39 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:57:39 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:57:39 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:57:39 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:57:39 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 2026-06-03 08:57:39 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:57:39.076009 End time: 2026-06-03 08:57:39.105011 2026-06-03 08:57:39 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:57:39 INFO imstat::::casa ########################################## 2026-06-03 08:57:39 INFO phaseshift::::casa ########################################## 2026-06-03 08:57:39 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:57:39 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 02:40:24.0000' ) 2026-06-03 08:57:39 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:57:39 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:57:39 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:57:39 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:57:39 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:57:39 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:57:39 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:57:39 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:57:39 INFO MSTransformManager::open Select data 2026-06-03 08:57:39 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:57:43 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 ".". 2026-06-03 08:57:43 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 02:40:24.0000' successfully parsed 2026-06-03 08:57:43 INFO phaseshift::::casa Shift phase center 2026-06-03 08:57:44 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:57:44 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:57:39.123693 End time: 2026-06-03 08:57:44.149463 2026-06-03 08:57:44 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:57:44 INFO phaseshift::::casa ########################################## 2026-06-03 08:57:44 INFO tclean::::casa ########################################## 2026-06-03 08:57:44 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:57:44 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:57:44 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:57:44 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:57:44 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 08:57:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:57:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:57:44 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:57:44 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 08:57:44 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:57:44 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.79 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:57:44 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:57:44 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:57:44 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:57:45 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 08:57:45 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024475 2026-06-03 08:57:45 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:57:45 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:57:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:57:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 08:57:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:57:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:57:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 08:57:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:57:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 08:57:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 08:57:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 08:57:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:57:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 08:57:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:57:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 08:57:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 08:57:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 08:57:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 08:57:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 08:57:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:57:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 08:57:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 08:57:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 08:57:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 08:57:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 08:57:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:57:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 08:57:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 08:57:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:57:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 08:57:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 08:57:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:57:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:57:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 08:57:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:57:56 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 08:57:57 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:57:44.209589 End time: 2026-06-03 08:57:57.394822 2026-06-03 08:57:57 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:57:57 INFO tclean::::casa ########################################## 2026-06-03 08:57:57 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 08:57:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:57:57 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 08:57:57 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 08:57:57 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 08:57:57 2026****** 2026-06-03 08:57:57 INFO ImageFitter::fit+ 2026-06-03 08:57:57 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 08:57:57 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 08:57:57 INFO ImageFitter::fit+ --- region: 2026-06-03 08:57:57 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 08:57:57 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 08:57:57 INFO ImageFitter::fit+ --- mask: 2026-06-03 08:57:57 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 08:57:57 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 08:57:57 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 08:57:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:57:57 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 08:57:57 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 08:57:57 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 08:57:57 INFO imstat::::casa ########################################## 2026-06-03 08:57:57 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:57:57 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 08:57:57 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:57:57 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:57:57 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:57:57 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 08:57:57 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:57:57 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 08:57:57 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:57:57 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:57:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:57:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 08:57:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 08:57:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 08:57:58 INFO imstat:::: Values --- 2026-06-03 08:57:58 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 08:57:58 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 08:57:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 08:57:58 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-06-03 08:57:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 08:57:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 08:57:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 08:57:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 08:57:58 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 08:57:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 08:57:58 INFO imstat:::: Statistics --- 2026-06-03 08:57:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 08:57:58 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 08:57:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 08:57:58 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 08:57:58 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-06-03 08:57:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-06-03 08:57:58 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-06-03 08:57:58 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-06-03 08:57:58 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-06-03 08:57:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:57:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:57:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:57:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:57:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:57:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:57:58 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 2026-06-03 08:57:58 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:57:57.471866 End time: 2026-06-03 08:57:57.504907 2026-06-03 08:57:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:57:58 INFO imstat::::casa ########################################## 2026-06-03 08:57:58 INFO phaseshift::::casa ########################################## 2026-06-03 08:57:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:57:58 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.100000000deg' ) 2026-06-03 08:57:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:57:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:57:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:57:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:57:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:57:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:57:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:57:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:57:58 INFO MSTransformManager::open Select data 2026-06-03 08:57:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:58:02 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:58:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.100000000deg' successfully parsed 2026-06-03 08:58:02 INFO phaseshift::::casa Shift phase center 2026-06-03 08:58:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:58:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:57:57.522494 End time: 2026-06-03 08:58:02.668449 2026-06-03 08:58:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:58:03 INFO phaseshift::::casa ########################################## 2026-06-03 08:58:03 INFO tclean::::casa ########################################## 2026-06-03 08:58:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:58:03 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:58:03 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:58:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:58:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 08:58:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:58:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:58:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:58:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 08:58:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:58:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.79 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:58:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:58:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:58:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:58:04 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 08:58:04 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.016039 2026-06-03 08:58:04 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:58:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:58:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:58:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 08:58:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:58:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:58:06 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 08:58:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 08:58:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 08:58:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 08:58:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:58:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 08:58:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 08:58:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 08:58:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 08:58:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 08:58:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 08:58:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 08:58:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 08:58:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 08:58:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 08:58:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 08:58:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 08:58:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 08:58:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:58:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 08:58:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 08:58:11 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:58:11 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:58:11 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 08:58:12 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:58:12 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 08:58:15 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:58:02.718629 End time: 2026-06-03 08:58:15.175500 2026-06-03 08:58:15 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:58:15 INFO tclean::::casa ########################################## 2026-06-03 08:58:15 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 08:58:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:58:15 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 08:58:15 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 08:58:15 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 08:58:15 2026****** 2026-06-03 08:58:15 INFO ImageFitter::fit+ 2026-06-03 08:58:15 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 08:58:15 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 08:58:15 INFO ImageFitter::fit+ --- region: 2026-06-03 08:58:15 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 08:58:15 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 08:58:15 INFO ImageFitter::fit+ --- mask: 2026-06-03 08:58:15 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 08:58:15 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 08:58:15 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 08:58:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:58:15 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 08:58:15 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 08:58:15 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 08:58:15 INFO imstat::::casa ########################################## 2026-06-03 08:58:15 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:58:15 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 08:58:15 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:58:15 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:58:15 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:58:15 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 08:58:15 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:58:15 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 08:58:15 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:58:15 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:58:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:58:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 08:58:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 08:58:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 08:58:15 INFO imstat:::: Values --- 2026-06-03 08:58:15 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 08:58:15 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 08:58:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 08:58:15 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-06-03 08:58:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 08:58:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 08:58:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 08:58:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 08:58:15 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 08:58:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 08:58:15 INFO imstat:::: Statistics --- 2026-06-03 08:58:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 08:58:15 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 08:58:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 08:58:15 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 08:58:15 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-06-03 08:58:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-06-03 08:58:15 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-06-03 08:58:15 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-06-03 08:58:15 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-06-03 08:58:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:58:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:58:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:58:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:58:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:58:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:58:15 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 2026-06-03 08:58:15 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:58:15.251653 End time: 2026-06-03 08:58:15.278369 2026-06-03 08:58:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:58:15 INFO imstat::::casa ########################################## 2026-06-03 08:58:15 INFO phaseshift::::casa ########################################## 2026-06-03 08:58:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:58:15 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 0.699877030rad' ) 2026-06-03 08:58:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:58:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:58:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:58:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:58:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:58:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:58:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:58:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:58:15 INFO MSTransformManager::open Select data 2026-06-03 08:58:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:58:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:58:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 0.699877030rad' successfully parsed 2026-06-03 08:58:18 INFO phaseshift::::casa Shift phase center 2026-06-03 08:58:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:58:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:58:15.295665 End time: 2026-06-03 08:58:19.222459 2026-06-03 08:58:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:58:19 INFO phaseshift::::casa ########################################## 2026-06-03 08:58:19 INFO tclean::::casa ########################################## 2026-06-03 08:58:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:58:19 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:58:19 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:58:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:58:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 08:58:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:58:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:58:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:58:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 08:58:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:58:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.79 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:58:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:58:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:58:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:58:20 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 08:58:20 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.019813 2026-06-03 08:58:20 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:58:20 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:58:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:58:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 08:58:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:58:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:58:22 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 08:58:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 08:58:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 08:58:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 08:58:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:58:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 08:58:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 08:58:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 08:58:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 08:58:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 08:58:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 08:58:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 08:58:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 08:58:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 08:58:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 08:58:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 08:58:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 08:58:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 08:58:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:58:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 08:58:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 08:58:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:58:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:58:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 08:58:28 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:58:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 08:58:30 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:58:19.264689 End time: 2026-06-03 08:58:29.945370 2026-06-03 08:58:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:58:30 INFO tclean::::casa ########################################## 2026-06-03 08:58:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 08:58:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:58:30 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) 2026-06-03 08:58:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 08:58:30 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 08:58:30 2026****** 2026-06-03 08:58:30 INFO ImageFitter::fit+ 2026-06-03 08:58:30 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 08:58:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 08:58:30 INFO ImageFitter::fit+ --- region: 2026-06-03 08:58:30 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 08:58:30 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 08:58:30 INFO ImageFitter::fit+ --- mask: 2026-06-03 08:58:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 08:58:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 08:58:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 08:58:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:58:30 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) 2026-06-03 08:58:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 08:58:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 08:58:30 INFO imstat::::casa ########################################## 2026-06-03 08:58:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:58:30 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 ) 2026-06-03 08:58:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:58:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:58:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:58:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 08:58:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:58:30 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) 2026-06-03 08:58:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:58:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:58:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:58:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 08:58:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 08:58:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 08:58:30 INFO imstat:::: Values --- 2026-06-03 08:58:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 08:58:30 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 08:58:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 08:58:30 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-06-03 08:58:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 08:58:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 08:58:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 08:58:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-06-03 08:58:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 08:58:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 08:58:30 INFO imstat:::: Statistics --- 2026-06-03 08:58:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 08:58:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 08:58:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 08:58:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 08:58:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-06-03 08:58:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-06-03 08:58:30 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-06-03 08:58:30 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-06-03 08:58:30 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-06-03 08:58:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:58:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:58:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:58:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:58:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:58:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:58:30 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 2026-06-03 08:58:30 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:58:30.041391 End time: 2026-06-03 08:58:30.066795 2026-06-03 08:58:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:58:30 INFO imstat::::casa ########################################## 2026-06-03 08:58:30 INFO phaseshift::::casa ########################################## 2026-06-03 08:58:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:58:30 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 19:53:50.0000 40d06m00' ) 2026-06-03 08:58:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:58:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:58:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:58:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:58:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:58:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:58:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:58:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:58:30 INFO MSTransformManager::open Select data 2026-06-03 08:58:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:58:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:58:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40d06m00' successfully parsed 2026-06-03 08:58:33 INFO phaseshift::::casa Shift phase center 2026-06-03 08:58:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:58:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:58:30.091978 End time: 2026-06-03 08:58:33.884371 2026-06-03 08:58:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:58:34 INFO phaseshift::::casa ########################################## 2026-06-03 08:58:34 INFO tclean::::casa ########################################## 2026-06-03 08:58:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:58:34 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:58:34 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:58:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:58:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 08:58:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:58:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:58:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:58:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 08:58:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:58:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.78 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:58:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:58:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:58:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:58:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 08:58:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021975 2026-06-03 08:58:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:58:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:58:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:58:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 08:58:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:58:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:58:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 08:58:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 08:58:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 08:58:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 08:58:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:58:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 08:58:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 08:58:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 08:58:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 08:58:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 08:58:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 08:58:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 08:58:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 08:58:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 08:58:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 08:58:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 08:58:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 08:58:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 08:58:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:58:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 08:58:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 08:58:42 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:58:42 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:58:42 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 08:58:43 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:58:44 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 08:58:45 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:58:33.946001 End time: 2026-06-03 08:58:44.794986 2026-06-03 08:58:45 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:58:45 INFO tclean::::casa ########################################## 2026-06-03 08:58:45 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 08:58:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:58:45 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 08:58:45 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 08:58:45 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 08:58:45 2026****** 2026-06-03 08:58:45 INFO ImageFitter::fit+ 2026-06-03 08:58:45 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 08:58:45 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 08:58:45 INFO ImageFitter::fit+ --- region: 2026-06-03 08:58:45 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 08:58:45 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 08:58:45 INFO ImageFitter::fit+ --- mask: 2026-06-03 08:58:45 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 08:58:45 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 08:58:45 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 08:58:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:58:45 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 08:58:45 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 08:58:45 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 08:58:45 INFO imstat::::casa ########################################## 2026-06-03 08:58:45 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:58:45 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 08:58:45 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:58:45 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:58:45 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:58:45 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 08:58:45 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:58:45 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 08:58:45 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:58:45 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:58:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:58:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 08:58:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 08:58:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 08:58:45 INFO imstat:::: Values --- 2026-06-03 08:58:45 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 08:58:45 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 08:58:45 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 08:58:45 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-06-03 08:58:45 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 08:58:45 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 08:58:45 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 08:58:45 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 08:58:45 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 08:58:45 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 08:58:45 INFO imstat:::: Statistics --- 2026-06-03 08:58:45 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 08:58:45 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 08:58:45 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 08:58:45 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 08:58:45 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-06-03 08:58:45 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-06-03 08:58:45 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-06-03 08:58:45 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-06-03 08:58:45 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-06-03 08:58:45 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:58:45 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:58:45 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:58:45 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:58:45 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:58:45 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:58:45 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 2026-06-03 08:58:45 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:58:44.876219 End time: 2026-06-03 08:58:44.910892 2026-06-03 08:58:45 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:58:45 INFO imstat::::casa ########################################## 2026-06-03 08:58:45 INFO phaseshift::::casa ########################################## 2026-06-03 08:58:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:58:45 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 02:40:24.0000' ) 2026-06-03 08:58:45 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:58:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:58:45 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:58:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:58:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:58:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:58:45 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:58:45 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:58:45 INFO MSTransformManager::open Select data 2026-06-03 08:58:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:58:49 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 ".". 2026-06-03 08:58:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 02:40:24.0000' successfully parsed 2026-06-03 08:58:49 INFO phaseshift::::casa Shift phase center 2026-06-03 08:58:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:58:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:58:44.927843 End time: 2026-06-03 08:58:49.962840 2026-06-03 08:58:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:58:50 INFO phaseshift::::casa ########################################## 2026-06-03 08:58:50 INFO tclean::::casa ########################################## 2026-06-03 08:58:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:58:50 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:58:50 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:58:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:58:50 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 08:58:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:58:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:58:50 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:58:50 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 08:58:50 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:58:50 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.79 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:58:50 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:58:50 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:58:50 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:58:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 08:58:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023384 2026-06-03 08:58:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:58:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:58:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:58:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 08:58:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:58:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:58:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 08:58:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 08:58:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 08:58:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 08:58:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:58:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 08:58:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 08:58:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 08:58:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 08:58:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 08:58:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 08:58:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 08:58:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 08:58:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 08:58:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 08:58:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 08:58:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:58:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 08:58:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 08:58:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:58:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 08:58:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 08:58:59 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:58:59 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:58:59 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 08:59:00 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:59:00 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 08:59:01 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:58:50.021687 End time: 2026-06-03 08:59:01.226927 2026-06-03 08:59:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:59:01 INFO tclean::::casa ########################################## 2026-06-03 08:59:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 08:59:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:59:01 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) 2026-06-03 08:59:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 08:59:01 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 08:59:01 2026****** 2026-06-03 08:59:01 INFO ImageFitter::fit+ 2026-06-03 08:59:01 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 08:59:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 08:59:01 INFO ImageFitter::fit+ --- region: 2026-06-03 08:59:01 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 08:59:01 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 08:59:01 INFO ImageFitter::fit+ --- mask: 2026-06-03 08:59:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 08:59:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 08:59:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 08:59:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:59:01 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) 2026-06-03 08:59:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 08:59:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 08:59:01 INFO imstat::::casa ########################################## 2026-06-03 08:59:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:59:01 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 ) 2026-06-03 08:59:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:59:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:59:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:59:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 08:59:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:59:01 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) 2026-06-03 08:59:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:59:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:59:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:59:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 08:59:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 08:59:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 08:59:01 INFO imstat:::: Values --- 2026-06-03 08:59:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 08:59:01 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 08:59:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 08:59:01 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-06-03 08:59:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 08:59:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 08:59:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 08:59:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 08:59:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 08:59:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 08:59:01 INFO imstat:::: Statistics --- 2026-06-03 08:59:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 08:59:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 08:59:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 08:59:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 08:59:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-06-03 08:59:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-06-03 08:59:01 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-06-03 08:59:01 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-06-03 08:59:01 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-06-03 08:59:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:59:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:59:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:59:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:59:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:59:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:59:01 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 2026-06-03 08:59:01 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:59:01.278744 End time: 2026-06-03 08:59:01.311676 2026-06-03 08:59:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:59:01 INFO imstat::::casa ########################################## 2026-06-03 08:59:01 INFO phaseshift::::casa ########################################## 2026-06-03 08:59:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:59:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40.100000000deg' ) 2026-06-03 08:59:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:59:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:59:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:59:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:59:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:59:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:59:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:59:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:59:01 INFO MSTransformManager::open Select data 2026-06-03 08:59:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:59:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:59:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40.100000000deg' successfully parsed 2026-06-03 08:59:04 INFO phaseshift::::casa Shift phase center 2026-06-03 08:59:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:59:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:59:01.337992 End time: 2026-06-03 08:59:06.082999 2026-06-03 08:59:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:59:06 INFO phaseshift::::casa ########################################## 2026-06-03 08:59:06 INFO tclean::::casa ########################################## 2026-06-03 08:59:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:59:06 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:59:06 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:59:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:59:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 08:59:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:59:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:59:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:59:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 08:59:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:59:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.79 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:59:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:59:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:59:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:59:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 08:59:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028424 2026-06-03 08:59:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:59:08 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:59:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:59:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 08:59:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:59:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:59:09 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 08:59:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:59:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 08:59:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 08:59:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 08:59:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:59:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 08:59:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:59:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 08:59:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 08:59:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 08:59:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 08:59:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 08:59:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:59:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 08:59:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 08:59:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 08:59:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 08:59:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 08:59:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:59:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 08:59:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 08:59:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:59:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 08:59:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 08:59:15 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:59:15 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:59:15 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 08:59:15 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:59:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 08:59:17 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:59:06.138214 End time: 2026-06-03 08:59:16.867749 2026-06-03 08:59:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:59:17 INFO tclean::::casa ########################################## 2026-06-03 08:59:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 08:59:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:59:17 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 08:59:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 08:59:17 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 08:59:17 2026****** 2026-06-03 08:59:17 INFO ImageFitter::fit+ 2026-06-03 08:59:17 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 08:59:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 08:59:17 INFO ImageFitter::fit+ --- region: 2026-06-03 08:59:17 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 08:59:17 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 08:59:17 INFO ImageFitter::fit+ --- mask: 2026-06-03 08:59:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 08:59:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 08:59:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 08:59:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:59:17 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 08:59:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 08:59:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 08:59:17 INFO imstat::::casa ########################################## 2026-06-03 08:59:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:59:17 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 08:59:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:59:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:59:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:59:17 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 08:59:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:59:17 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 08:59:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:59:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:59:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:59:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 08:59:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 08:59:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 08:59:17 INFO imstat:::: Values --- 2026-06-03 08:59:17 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 08:59:17 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 08:59:17 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 08:59:17 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-06-03 08:59:17 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 08:59:17 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 08:59:17 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 08:59:17 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 08:59:17 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 08:59:17 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 08:59:17 INFO imstat:::: Statistics --- 2026-06-03 08:59:17 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 08:59:17 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 08:59:17 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 08:59:17 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 08:59:17 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-06-03 08:59:17 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-06-03 08:59:17 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-06-03 08:59:17 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-06-03 08:59:17 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-06-03 08:59:17 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:59:17 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:59:17 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:59:17 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:59:17 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:59:17 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:59:17 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 2026-06-03 08:59:17 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:59:16.943704 End time: 2026-06-03 08:59:16.969095 2026-06-03 08:59:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:59:17 INFO imstat::::casa ########################################## 2026-06-03 08:59:17 INFO phaseshift::::casa ########################################## 2026-06-03 08:59:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:59:17 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 0.699877030rad' ) 2026-06-03 08:59:17 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:59:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:59:17 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:59:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:59:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:59:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:59:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:59:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:59:17 INFO MSTransformManager::open Select data 2026-06-03 08:59:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:59:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:59:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 0.699877030rad' successfully parsed 2026-06-03 08:59:21 INFO phaseshift::::casa Shift phase center 2026-06-03 08:59:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:59:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:59:16.985762 End time: 2026-06-03 08:59:22.105362 2026-06-03 08:59:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:59:22 INFO phaseshift::::casa ########################################## 2026-06-03 08:59:22 INFO tclean::::casa ########################################## 2026-06-03 08:59:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:59:22 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:59:22 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:59:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:59:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 08:59:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:59:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:59:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:59:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 08:59:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:59:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.78 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:59:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:59:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:59:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:59:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 08:59:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028419 2026-06-03 08:59:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:59:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:59:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:59:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 08:59:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:59:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:59:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 08:59:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:59:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 08:59:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 08:59:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 08:59:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:59:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 08:59:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:59:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 08:59:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 08:59:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 08:59:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 08:59:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 08:59:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:59:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 08:59:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 08:59:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 08:59:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 08:59:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 08:59:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:59:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 08:59:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 08:59:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:59:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 08:59:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 08:59:31 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:59:31 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:59:31 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 08:59:32 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:59:32 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 08:59:33 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:59:22.164296 End time: 2026-06-03 08:59:33.389179 2026-06-03 08:59:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:59:33 INFO tclean::::casa ########################################## 2026-06-03 08:59:33 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 08:59:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:59:33 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 08:59:33 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 08:59:33 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 08:59:33 2026****** 2026-06-03 08:59:33 INFO ImageFitter::fit+ 2026-06-03 08:59:33 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 08:59:33 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 08:59:33 INFO ImageFitter::fit+ --- region: 2026-06-03 08:59:33 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 08:59:33 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 08:59:33 INFO ImageFitter::fit+ --- mask: 2026-06-03 08:59:33 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 08:59:33 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 08:59:33 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 08:59:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:59:33 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 08:59:33 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 08:59:33 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 08:59:33 INFO imstat::::casa ########################################## 2026-06-03 08:59:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:59:33 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 08:59:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:59:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:59:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:59:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 08:59:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:59:33 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 08:59:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:59:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:59:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:59:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 08:59:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 08:59:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 08:59:33 INFO imstat:::: Values --- 2026-06-03 08:59:33 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 08:59:33 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 08:59:33 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 08:59:33 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-06-03 08:59:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 08:59:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 08:59:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 08:59:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-06-03 08:59:33 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 08:59:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 08:59:33 INFO imstat:::: Statistics --- 2026-06-03 08:59:33 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 08:59:33 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 08:59:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 08:59:33 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 08:59:33 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-06-03 08:59:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-06-03 08:59:33 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-06-03 08:59:33 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-06-03 08:59:33 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-06-03 08:59:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:59:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:59:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:59:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:59:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:59:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:59:33 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 2026-06-03 08:59:33 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:59:33.441067 End time: 2026-06-03 08:59:33.462097 2026-06-03 08:59:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:59:33 INFO imstat::::casa ########################################## 2026-06-03 08:59:33 INFO phaseshift::::casa ########################################## 2026-06-03 08:59:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:59:33 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40d06m00' ) 2026-06-03 08:59:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:59:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:59:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:59:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:59:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:59:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:59:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:59:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:59:34 INFO MSTransformManager::open Select data 2026-06-03 08:59:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:59:36 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 08:59:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40d06m00' successfully parsed 2026-06-03 08:59:36 INFO phaseshift::::casa Shift phase center 2026-06-03 08:59:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:59:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:59:33.485819 End time: 2026-06-03 08:59:37.327031 2026-06-03 08:59:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:59:37 INFO phaseshift::::casa ########################################## 2026-06-03 08:59:37 INFO tclean::::casa ########################################## 2026-06-03 08:59:37 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:59:37 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:59:37 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:59:37 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:59:37 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 08:59:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:59:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:59:38 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:59:38 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 08:59:38 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:59:38 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.78 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:59:38 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:59:38 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:59:38 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:59:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 08:59:39 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017822 2026-06-03 08:59:39 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:59:39 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:59:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:59:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 08:59:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:59:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:59:40 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 08:59:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:59:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 08:59:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 08:59:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 08:59:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:59:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 08:59:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:59:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 08:59:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 08:59:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 08:59:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 08:59:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 08:59:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:59:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 08:59:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 08:59:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 08:59:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 08:59:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 08:59:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:59:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 08:59:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 08:59:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 08:59:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 08:59:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 08:59:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 08:59:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 08:59:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 08:59:46 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:59:46 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 08:59:48 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:59:37.386945 End time: 2026-06-03 08:59:48.123362 2026-06-03 08:59:48 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 08:59:48 INFO tclean::::casa ########################################## 2026-06-03 08:59:48 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 08:59:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:59:48 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 08:59:48 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 08:59:48 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 08:59:48 2026****** 2026-06-03 08:59:48 INFO ImageFitter::fit+ 2026-06-03 08:59:48 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 08:59:48 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 08:59:48 INFO ImageFitter::fit+ --- region: 2026-06-03 08:59:48 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 08:59:48 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 08:59:48 INFO ImageFitter::fit+ --- mask: 2026-06-03 08:59:48 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 08:59:48 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 08:59:48 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 08:59:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:59:48 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 08:59:48 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 08:59:48 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 08:59:48 INFO imstat::::casa ########################################## 2026-06-03 08:59:48 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 08:59:48 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 08:59:48 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 08:59:48 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 08:59:48 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 08:59:48 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 08:59:48 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 08:59:48 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 08:59:48 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 08:59:48 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 08:59:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 08:59:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 08:59:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 08:59:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 08:59:48 INFO imstat:::: Values --- 2026-06-03 08:59:48 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 08:59:48 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 08:59:48 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 08:59:48 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-06-03 08:59:48 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 08:59:48 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 08:59:48 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 08:59:48 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 08:59:48 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 08:59:48 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 08:59:48 INFO imstat:::: Statistics --- 2026-06-03 08:59:48 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 08:59:48 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 08:59:48 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 08:59:48 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 08:59:48 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-06-03 08:59:48 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-06-03 08:59:48 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-06-03 08:59:48 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-06-03 08:59:48 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-06-03 08:59:48 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 08:59:48 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 08:59:48 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 08:59:48 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 08:59:48 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 08:59:48 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 08:59:48 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 2026-06-03 08:59:48 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 08:59:48.197371 End time: 2026-06-03 08:59:48.229205 2026-06-03 08:59:48 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 08:59:48 INFO imstat::::casa ########################################## 2026-06-03 08:59:48 INFO phaseshift::::casa ########################################## 2026-06-03 08:59:48 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 08:59:48 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 02:40:24.0000' ) 2026-06-03 08:59:48 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 08:59:48 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 08:59:48 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 08:59:48 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 08:59:48 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 08:59:48 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 08:59:48 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 08:59:48 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 08:59:48 INFO MSTransformManager::open Select data 2026-06-03 08:59:48 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 08:59:51 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 ".". 2026-06-03 08:59:51 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 02:40:24.0000' successfully parsed 2026-06-03 08:59:51 INFO phaseshift::::casa Shift phase center 2026-06-03 08:59:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 08:59:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 08:59:48.248706 End time: 2026-06-03 08:59:53.561578 2026-06-03 08:59:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 08:59:54 INFO phaseshift::::casa ########################################## 2026-06-03 08:59:54 INFO tclean::::casa ########################################## 2026-06-03 08:59:54 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 08:59:54 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, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 08:59:54 INFO tclean::::casa Verifying Input Parameters 2026-06-03 08:59:54 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 08:59:54 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 08:59:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:59:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 08:59:54 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 08:59:54 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 08:59:54 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 08:59:54 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.78 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 08:59:54 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 08:59:54 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 08:59:54 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 08:59:55 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 08:59:55 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025234 2026-06-03 08:59:55 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 08:59:55 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 08:59:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 08:59:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 08:59:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 08:59:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 08:59:57 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 08:59:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:59:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 08:59:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 08:59:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 08:59:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 08:59:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 08:59:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 08:59:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 08:59:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 08:59:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 08:59:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:00:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:00:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:00:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:00:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:00:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:00:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:00:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:00:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:00:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:00:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:00:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:00:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:00:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:00:03 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:00:03 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:00:03 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:00:04 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:00:05 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:00:06 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 08:59:53.617747 End time: 2026-06-03 09:00:05.597097 2026-06-03 09:00:06 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:00:06 INFO tclean::::casa ########################################## 2026-06-03 09:00:06 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:00:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:00:06 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:00:06 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:00:06 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:00:06 2026****** 2026-06-03 09:00:06 INFO ImageFitter::fit+ 2026-06-03 09:00:06 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:00:06 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:00:06 INFO ImageFitter::fit+ --- region: 2026-06-03 09:00:06 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:00:06 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:00:06 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:00:06 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:00:06 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:00:06 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:00:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:00:06 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:00:06 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:00:06 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:00:06 INFO imstat::::casa ########################################## 2026-06-03 09:00:06 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:00:06 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:00:06 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:00:06 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:00:06 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:00:06 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:00:06 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:00:06 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:00:06 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:00:06 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:00:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:00:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:00:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:00:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:00:06 INFO imstat:::: Values --- 2026-06-03 09:00:06 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:00:06 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:00:06 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:00:06 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-06-03 09:00:06 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:00:06 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:00:06 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:00:06 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:00:06 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:00:06 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:00:06 INFO imstat:::: Statistics --- 2026-06-03 09:00:06 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:00:06 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:00:06 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:00:06 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:00:06 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-06-03 09:00:06 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-06-03 09:00:06 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-06-03 09:00:06 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-06-03 09:00:06 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-06-03 09:00:06 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:00:06 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:00:06 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:00:06 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:00:06 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:00:06 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:00:06 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 2026-06-03 09:00:06 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:00:05.663570 End time: 2026-06-03 09:00:05.688421 2026-06-03 09:00:06 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:00:06 INFO imstat::::casa ########################################## 2026-06-03 09:00:06 INFO phaseshift::::casa ########################################## 2026-06-03 09:00:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:00:06 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40.100000000deg' ) 2026-06-03 09:00:06 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:00:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:00:06 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:00:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:00:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:00:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:00:06 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:00:06 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:00:06 INFO MSTransformManager::open Select data 2026-06-03 09:00:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:00:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:00:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40.100000000deg' successfully parsed 2026-06-03 09:00:08 INFO phaseshift::::casa Shift phase center 2026-06-03 09:00:09 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:00:09 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:00:05.705738 End time: 2026-06-03 09:00:09.135088 2026-06-03 09:00:09 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:00:09 INFO phaseshift::::casa ########################################## 2026-06-03 09:00:09 INFO tclean::::casa ########################################## 2026-06-03 09:00:09 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:00:09 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, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:00:09 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:00:09 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:00:09 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:00:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:00:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:00:09 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:00:09 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:00:09 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:00:09 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.78 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:00:09 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:00:09 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:00:09 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:00:11 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:00:11 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028193 2026-06-03 09:00:11 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:00:11 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:00:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:00:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:00:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:00:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:00:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:00:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:00:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:00:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:00:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:00:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:00:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:00:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:00:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:00:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:00:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:00:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:00:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:00:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:00:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:00:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:00:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:00:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:00:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:00:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:00:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:00:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:00:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:00:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:00:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:00:18 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:00:18 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:00:18 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:00:19 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:00:19 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:00:21 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:00:09.190607 End time: 2026-06-03 09:00:20.638403 2026-06-03 09:00:21 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:00:21 INFO tclean::::casa ########################################## 2026-06-03 09:00:21 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:00:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:00:21 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:00:21 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:00:21 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:00:21 2026****** 2026-06-03 09:00:21 INFO ImageFitter::fit+ 2026-06-03 09:00:21 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:00:21 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:00:21 INFO ImageFitter::fit+ --- region: 2026-06-03 09:00:21 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:00:21 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:00:21 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:00:21 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:00:21 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:00:21 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:00:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:00:21 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:00:21 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:00:21 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:00:21 INFO imstat::::casa ########################################## 2026-06-03 09:00:21 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:00:21 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:00:21 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:00:21 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:00:21 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:00:21 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:00:21 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:00:21 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:00:21 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:00:21 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:00:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:00:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:00:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:00:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:00:21 INFO imstat:::: Values --- 2026-06-03 09:00:21 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:00:21 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:00:21 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:00:21 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-06-03 09:00:21 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:00:21 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:00:21 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:00:21 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:00:21 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:00:21 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:00:21 INFO imstat:::: Statistics --- 2026-06-03 09:00:21 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:00:21 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:00:21 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:00:21 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:00:21 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-06-03 09:00:21 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-06-03 09:00:21 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-06-03 09:00:21 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-06-03 09:00:21 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-06-03 09:00:21 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:00:21 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:00:21 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:00:21 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:00:21 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:00:21 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:00:21 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 2026-06-03 09:00:21 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:00:20.720379 End time: 2026-06-03 09:00:20.759787 2026-06-03 09:00:21 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:00:21 INFO imstat::::casa ########################################## 2026-06-03 09:00:21 INFO phaseshift::::casa ########################################## 2026-06-03 09:00:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:00:21 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 0.699877030rad' ) 2026-06-03 09:00:21 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:00:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:00:21 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:00:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:00:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:00:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:00:21 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:00:21 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:00:21 INFO MSTransformManager::open Select data 2026-06-03 09:00:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:00:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:00:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 0.699877030rad' successfully parsed 2026-06-03 09:00:24 INFO phaseshift::::casa Shift phase center 2026-06-03 09:00:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:00:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:00:20.778924 End time: 2026-06-03 09:00:24.715232 2026-06-03 09:00:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:00:25 INFO phaseshift::::casa ########################################## 2026-06-03 09:00:25 INFO tclean::::casa ########################################## 2026-06-03 09:00:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:00:25 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:00:25 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:00:25 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:00:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:00:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:00:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:00:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:00:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:00:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:00:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.78 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:00:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:00:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:00:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:00:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:00:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028603 2026-06-03 09:00:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:00:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:00:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:00:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:00:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:00:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:00:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:00:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:00:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:00:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:00:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:00:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:00:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:00:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:00:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:00:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:00:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:00:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:00:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:00:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:00:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:00:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:00:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:00:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:00:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:00:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:00:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:00:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:00:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:00:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:00:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:00:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:00:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:00:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:00:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:00:37 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:00:38 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:00:24.774404 End time: 2026-06-03 09:00:37.713745 2026-06-03 09:00:38 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:00:38 INFO tclean::::casa ########################################## 2026-06-03 09:00:38 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:00:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:00:38 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) 2026-06-03 09:00:38 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:00:38 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:00:38 2026****** 2026-06-03 09:00:38 INFO ImageFitter::fit+ 2026-06-03 09:00:38 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:00:38 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:00:38 INFO ImageFitter::fit+ --- region: 2026-06-03 09:00:38 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:00:38 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:00:38 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:00:38 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:00:38 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:00:38 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:00:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:00:38 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) 2026-06-03 09:00:38 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:00:38 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:00:38 INFO imstat::::casa ########################################## 2026-06-03 09:00:38 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:00:38 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 ) 2026-06-03 09:00:38 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:00:38 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:00:38 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:00:38 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:00:38 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:00:38 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) 2026-06-03 09:00:38 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:00:38 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:00:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:00:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:00:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:00:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:00:38 INFO imstat:::: Values --- 2026-06-03 09:00:38 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:00:38 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:00:38 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:00:38 INFO imstat:::: -- minimum value [min]: -7.77738e-05 Jy/beam 2026-06-03 09:00:38 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:00:38 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:00:38 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:00:38 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:00:38 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:00:38 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:00:38 INFO imstat:::: Statistics --- 2026-06-03 09:00:38 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:00:38 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:00:38 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:00:38 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:00:38 INFO imstat:::: -- Median of the pixel values [median]: -1.86662e-05 Jy/beam 2026-06-03 09:00:38 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73577e-05 Jy/beam 2026-06-03 09:00:38 INFO imstat:::: -- IQR [quartile]: 3.56242e-05 Jy/beam 2026-06-03 09:00:38 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-06-03 09:00:38 INFO imstat:::: -- Third quartile [q3]: 1.11673e-06 Jy/beam 2026-06-03 09:00:38 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:00:38 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:00:38 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:00:38 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:00:38 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:00:38 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:00:38 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777377e-05 4.999996e+00 2026-06-03 09:00:38 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:00:37.805766 End time: 2026-06-03 09:00:37.842085 2026-06-03 09:00:38 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:00:38 INFO imstat::::casa ########################################## 2026-06-03 09:00:38 INFO phaseshift::::casa ########################################## 2026-06-03 09:00:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:00:38 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40d06m00' ) 2026-06-03 09:00:38 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:00:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:00:38 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:00:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:00:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:00:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:00:38 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:00:38 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:00:38 INFO MSTransformManager::open Select data 2026-06-03 09:00:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:00:41 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:00:41 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40d06m00' successfully parsed 2026-06-03 09:00:41 INFO phaseshift::::casa Shift phase center 2026-06-03 09:00:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:00:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:00:37.861088 End time: 2026-06-03 09:00:41.755431 2026-06-03 09:00:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:00:42 INFO phaseshift::::casa ########################################## 2026-06-03 09:00:42 INFO tclean::::casa ########################################## 2026-06-03 09:00:42 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:00:42 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:00:42 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:00:42 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:00:42 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:00:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:00:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:00:42 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:00:42 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:00:42 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:00:42 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:00:42 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:00:42 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:00:42 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:00:44 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:00:44 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028611 2026-06-03 09:00:44 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:00:44 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:00:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:00:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:00:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:00:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:00:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:00:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:00:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:00:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:00:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:00:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:00:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:00:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:00:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:00:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:00:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:00:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:00:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:00:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:00:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:00:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:00:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:00:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:00:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:00:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:00:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:00:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:00:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:00:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:00:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:00:51 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:00:51 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:00:51 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:00:52 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:00:52 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:00:54 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:00:41.815144 End time: 2026-06-03 09:00:53.624982 2026-06-03 09:00:54 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:00:54 INFO tclean::::casa ########################################## 2026-06-03 09:00:54 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:00:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:00:54 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) 2026-06-03 09:00:54 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:00:54 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:00:54 2026****** 2026-06-03 09:00:54 INFO ImageFitter::fit+ 2026-06-03 09:00:54 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:00:54 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:00:54 INFO ImageFitter::fit+ --- region: 2026-06-03 09:00:54 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:00:54 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:00:54 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:00:54 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:00:54 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:00:54 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:00:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:00:54 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) 2026-06-03 09:00:54 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:00:54 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:00:54 INFO imstat::::casa ########################################## 2026-06-03 09:00:54 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:00:54 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 ) 2026-06-03 09:00:54 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:00:54 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:00:54 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:00:54 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:00:54 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:00:54 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) 2026-06-03 09:00:54 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:00:54 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:00:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:00:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:00:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:00:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:00:54 INFO imstat:::: Values --- 2026-06-03 09:00:54 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:00:54 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:00:54 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:00:54 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-06-03 09:00:54 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:00:54 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 09:00:54 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:00:54 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-06-03 09:00:54 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:00:54 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:00:54 INFO imstat:::: Statistics --- 2026-06-03 09:00:54 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:00:54 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:00:54 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:00:54 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:00:54 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-06-03 09:00:54 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-06-03 09:00:54 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-06-03 09:00:54 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-06-03 09:00:54 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-06-03 09:00:54 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:00:54 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:00:54 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:00:54 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:00:54 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:00:54 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:00:54 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 2026-06-03 09:00:54 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:00:53.704138 End time: 2026-06-03 09:00:53.738509 2026-06-03 09:00:54 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:00:54 INFO imstat::::casa ########################################## 2026-06-03 09:00:54 INFO phaseshift::::casa ########################################## 2026-06-03 09:00:54 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:00:54 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 02:40:24.0000' ) 2026-06-03 09:00:54 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:00:54 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:00:54 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:00:54 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:00:54 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:00:54 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:00:54 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:00:54 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:00:54 INFO MSTransformManager::open Select data 2026-06-03 09:00:54 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:00:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-06-03 09:00:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 02:40:24.0000' successfully parsed 2026-06-03 09:00:57 INFO phaseshift::::casa Shift phase center 2026-06-03 09:00:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:00:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:00:53.756121 End time: 2026-06-03 09:00:57.809982 2026-06-03 09:00:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:00:58 INFO phaseshift::::casa ########################################## 2026-06-03 09:00:58 INFO tclean::::casa ########################################## 2026-06-03 09:00:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:00:58 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:00:58 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:00:58 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:00:58 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:00:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:00:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:00:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:00:58 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:00:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:00:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:00:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:00:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:00:58 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:01:01 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:01:01 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026719 2026-06-03 09:01:01 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:01:01 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:01:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:01:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:01:03 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:01:03 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:01:03 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:01:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:01:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:01:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:01:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:01:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:01:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:01:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:01:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:01:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:01:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:01:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:01:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:01:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:01:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:01:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:01:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:01:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:01:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:01:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:01:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:01:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:01:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:01:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:01:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:01:10 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:01:10 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:01:10 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:01:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:01:11 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:01:12 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:00:57.864545 End time: 2026-06-03 09:01:11.579889 2026-06-03 09:01:12 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:01:12 INFO tclean::::casa ########################################## 2026-06-03 09:01:12 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:01:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:01:12 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) 2026-06-03 09:01:12 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:01:12 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:01:12 2026****** 2026-06-03 09:01:12 INFO ImageFitter::fit+ 2026-06-03 09:01:12 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:01:12 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:01:12 INFO ImageFitter::fit+ --- region: 2026-06-03 09:01:12 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:01:12 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:01:12 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:01:12 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:01:12 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:01:12 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:01:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:01:12 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) 2026-06-03 09:01:12 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:01:12 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:01:12 INFO imstat::::casa ########################################## 2026-06-03 09:01:12 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:01:12 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 ) 2026-06-03 09:01:12 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:01:12 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:01:12 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:01:12 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:01:12 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:01:12 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) 2026-06-03 09:01:12 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:01:12 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:01:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:01:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:01:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:01:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:01:12 INFO imstat:::: Values --- 2026-06-03 09:01:12 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:01:12 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:01:12 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:01:12 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-06-03 09:01:12 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:01:12 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 09:01:12 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:01:12 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-06-03 09:01:12 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:01:12 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:01:12 INFO imstat:::: Statistics --- 2026-06-03 09:01:12 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:01:12 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:01:12 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:01:12 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:01:12 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-06-03 09:01:12 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-06-03 09:01:12 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-06-03 09:01:12 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-06-03 09:01:12 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-06-03 09:01:12 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:01:12 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:01:12 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:01:12 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:01:12 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:01:12 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:01:12 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 2026-06-03 09:01:12 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:01:11.653126 End time: 2026-06-03 09:01:11.679710 2026-06-03 09:01:12 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:01:12 INFO imstat::::casa ########################################## 2026-06-03 09:01:12 INFO phaseshift::::casa ########################################## 2026-06-03 09:01:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:01:12 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40.100000000deg' ) 2026-06-03 09:01:12 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:01:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:01:12 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:01:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:01:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:01:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:01:12 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:01:12 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:01:12 INFO MSTransformManager::open Select data 2026-06-03 09:01:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:01:15 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:01:15 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40.100000000deg' successfully parsed 2026-06-03 09:01:15 INFO phaseshift::::casa Shift phase center 2026-06-03 09:01:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:01:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:01:11.697246 End time: 2026-06-03 09:01:16.009830 2026-06-03 09:01:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:01:16 INFO phaseshift::::casa ########################################## 2026-06-03 09:01:16 INFO tclean::::casa ########################################## 2026-06-03 09:01:16 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:01:16 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:01:16 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:01:16 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:01:16 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:01:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:01:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:01:16 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:01:16 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:01:16 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:01:16 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:01:16 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:01:16 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:01:16 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:01:17 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:01:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023144 2026-06-03 09:01:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:01:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:01:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:01:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:01:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:01:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:01:20 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:01:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:01:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:01:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:01:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:01:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:01:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:01:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:01:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:01:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:01:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:01:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:01:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:01:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:01:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:01:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:01:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:01:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:01:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:01:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:01:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:01:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:01:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:01:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:01:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:01:26 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:01:26 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:01:26 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:01:27 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:01:27 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:01:28 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:01:16.075190 End time: 2026-06-03 09:01:28.167932 2026-06-03 09:01:28 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:01:28 INFO tclean::::casa ########################################## 2026-06-03 09:01:28 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:01:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:01:28 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) 2026-06-03 09:01:28 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:01:28 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:01:28 2026****** 2026-06-03 09:01:28 INFO ImageFitter::fit+ 2026-06-03 09:01:28 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:01:28 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:01:28 INFO ImageFitter::fit+ --- region: 2026-06-03 09:01:28 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:01:28 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:01:28 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:01:28 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:01:28 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:01:28 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:01:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:01:28 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) 2026-06-03 09:01:28 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:01:28 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:01:28 INFO imstat::::casa ########################################## 2026-06-03 09:01:28 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:01:28 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 ) 2026-06-03 09:01:28 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:01:28 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:01:28 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:01:28 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:01:28 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:01:28 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) 2026-06-03 09:01:28 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:01:28 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:01:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:01:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:01:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:01:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:01:28 INFO imstat:::: Values --- 2026-06-03 09:01:28 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:01:28 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:01:28 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:01:28 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-06-03 09:01:28 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:01:28 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 09:01:28 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:01:28 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-06-03 09:01:28 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:01:28 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:01:28 INFO imstat:::: Statistics --- 2026-06-03 09:01:28 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:01:28 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:01:28 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:01:28 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:01:28 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-06-03 09:01:28 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-06-03 09:01:28 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-06-03 09:01:28 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-06-03 09:01:28 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-06-03 09:01:28 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:01:28 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:01:28 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:01:28 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:01:28 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:01:28 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:01:28 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 2026-06-03 09:01:28 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:01:28.254242 End time: 2026-06-03 09:01:28.282951 2026-06-03 09:01:28 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:01:28 INFO imstat::::casa ########################################## 2026-06-03 09:01:28 INFO phaseshift::::casa ########################################## 2026-06-03 09:01:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:01:28 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 0.699877030rad' ) 2026-06-03 09:01:28 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:01:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:01:28 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:01:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:01:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:01:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:01:28 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:01:28 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:01:28 INFO MSTransformManager::open Select data 2026-06-03 09:01:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:01:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:01:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 0.699877030rad' successfully parsed 2026-06-03 09:01:32 INFO phaseshift::::casa Shift phase center 2026-06-03 09:01:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:01:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:01:28.301097 End time: 2026-06-03 09:01:34.108218 2026-06-03 09:01:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:01:34 INFO phaseshift::::casa ########################################## 2026-06-03 09:01:34 INFO tclean::::casa ########################################## 2026-06-03 09:01:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:01:34 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:01:34 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:01:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:01:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:01:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:01:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:01:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:01:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:01:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:01:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:01:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:01:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:01:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:01:37 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:01:37 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028446 2026-06-03 09:01:37 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:01:37 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:01:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:01:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:01:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:01:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:01:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:01:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:01:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:01:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:01:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:01:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:01:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:01:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:01:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:01:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:01:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:01:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:01:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:01:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:01:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:01:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:01:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:01:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:01:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:01:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:01:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:01:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:01:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:01:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:01:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:01:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:01:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:01:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:01:48 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:01:49 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:01:50 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:01:34.167933 End time: 2026-06-03 09:01:50.276151 2026-06-03 09:01:50 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:01:50 INFO tclean::::casa ########################################## 2026-06-03 09:01:50 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:01:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:01:50 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) 2026-06-03 09:01:50 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:01:50 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:01:50 2026****** 2026-06-03 09:01:50 INFO ImageFitter::fit+ 2026-06-03 09:01:50 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:01:50 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:01:50 INFO ImageFitter::fit+ --- region: 2026-06-03 09:01:50 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:01:50 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:01:50 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:01:50 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:01:50 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:01:50 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:01:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:01:50 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) 2026-06-03 09:01:50 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:01:50 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:01:50 INFO imstat::::casa ########################################## 2026-06-03 09:01:50 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:01:50 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 ) 2026-06-03 09:01:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:01:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:01:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:01:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:01:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:01:50 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) 2026-06-03 09:01:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:01:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:01:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:01:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:01:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:01:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:01:50 INFO imstat:::: Values --- 2026-06-03 09:01:50 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:01:50 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:01:50 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:01:50 INFO imstat:::: -- minimum value [min]: -7.77793e-05 Jy/beam 2026-06-03 09:01:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:01:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 09:01:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:01:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-06-03 09:01:50 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:01:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:01:50 INFO imstat:::: Statistics --- 2026-06-03 09:01:50 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:01:50 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:01:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:01:50 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:01:50 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-06-03 09:01:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73592e-05 Jy/beam 2026-06-03 09:01:50 INFO imstat:::: -- IQR [quartile]: 3.55982e-05 Jy/beam 2026-06-03 09:01:50 INFO imstat:::: -- First quartile [q1]: -3.45035e-05 Jy/beam 2026-06-03 09:01:50 INFO imstat:::: -- Third quartile [q3]: 1.09469e-06 Jy/beam 2026-06-03 09:01:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:01:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:01:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:01:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:01:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:01:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:01:50 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 2026-06-03 09:01:50 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:01:50.353533 End time: 2026-06-03 09:01:50.390116 2026-06-03 09:01:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:01:50 INFO imstat::::casa ########################################## 2026-06-03 09:01:50 INFO phaseshift::::casa ########################################## 2026-06-03 09:01:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:01:50 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40d06m0.0019' ) 2026-06-03 09:01:50 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:01:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:01:50 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:01:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:01:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:01:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:01:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:01:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:01:50 INFO MSTransformManager::open Select data 2026-06-03 09:01:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:01:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:01:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40d06m0.0019' successfully parsed 2026-06-03 09:01:54 INFO phaseshift::::casa Shift phase center 2026-06-03 09:01:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:01:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:01:50.417992 End time: 2026-06-03 09:01:54.628244 2026-06-03 09:01:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:01:55 INFO phaseshift::::casa ########################################## 2026-06-03 09:01:55 INFO tclean::::casa ########################################## 2026-06-03 09:01:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:01:55 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:01:55 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:01:55 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:01:55 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:01:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:01:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:01:55 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:01:55 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:01:55 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:01:55 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:01:55 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:01:55 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:01:55 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:01:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:01:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028209 2026-06-03 09:01:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:01:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:01:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:01:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:01:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:01:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:01:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:01:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:01:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:01:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:01:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:01:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:01:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:01:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:02:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:02:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:02:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:02:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:02:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:02:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:02:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:02:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:02:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:02:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:02:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:02:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:02:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:02:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:02:04 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:02:04 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:02:04 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:02:07 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:02:07 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:02:08 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:01:54.680456 End time: 2026-06-03 09:02:07.969369 2026-06-03 09:02:08 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:02:08 INFO tclean::::casa ########################################## 2026-06-03 09:02:08 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:02:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:02:08 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) 2026-06-03 09:02:08 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:02:08 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:02:08 2026****** 2026-06-03 09:02:08 INFO ImageFitter::fit+ 2026-06-03 09:02:08 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:02:08 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:02:08 INFO ImageFitter::fit+ --- region: 2026-06-03 09:02:08 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:02:08 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:02:08 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:02:08 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:02:08 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:02:08 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:02:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:02:08 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) 2026-06-03 09:02:08 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:02:08 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:02:08 INFO imstat::::casa ########################################## 2026-06-03 09:02:08 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:02:08 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 ) 2026-06-03 09:02:08 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:02:08 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:02:08 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:02:08 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:02:08 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:02:08 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) 2026-06-03 09:02:08 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:02:08 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:02:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:02:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:02:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:02:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:02:08 INFO imstat:::: Values --- 2026-06-03 09:02:08 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:02:08 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:02:08 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:02:08 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-06-03 09:02:08 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:02:08 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:02:08 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:02:08 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-06-03 09:02:08 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:02:08 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:02:08 INFO imstat:::: Statistics --- 2026-06-03 09:02:08 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:02:08 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:02:08 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:02:08 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:02:08 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-06-03 09:02:08 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-06-03 09:02:08 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-06-03 09:02:08 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-06-03 09:02:08 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-06-03 09:02:08 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:02:08 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:02:08 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:02:08 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:02:08 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:02:08 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:02:08 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 2026-06-03 09:02:08 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:02:08.040667 End time: 2026-06-03 09:02:08.066556 2026-06-03 09:02:08 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:02:08 INFO imstat::::casa ########################################## 2026-06-03 09:02:08 INFO phaseshift::::casa ########################################## 2026-06-03 09:02:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:02:08 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 02:40:24.0001' ) 2026-06-03 09:02:08 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:02:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:02:08 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:02:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:02:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:02:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:02:08 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:02:08 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:02:08 INFO MSTransformManager::open Select data 2026-06-03 09:02:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:02:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-06-03 09:02:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 02:40:24.0001' successfully parsed 2026-06-03 09:02:10 INFO phaseshift::::casa Shift phase center 2026-06-03 09:02:11 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:02:11 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:02:08.083620 End time: 2026-06-03 09:02:10.922448 2026-06-03 09:02:11 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:02:11 INFO phaseshift::::casa ########################################## 2026-06-03 09:02:11 INFO tclean::::casa ########################################## 2026-06-03 09:02:11 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:02:11 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:02:11 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:02:11 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:02:11 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:02:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:02:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:02:11 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:02:11 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:02:11 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:02:11 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:02:11 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:02:11 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:02:11 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:02:13 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:02:13 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026858 2026-06-03 09:02:13 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:02:13 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:02:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:02:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:02:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:02:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:02:14 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:02:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:02:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:02:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:02:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:02:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:02:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:02:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:02:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:02:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:02:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:02:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:02:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:02:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:02:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:02:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:02:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:02:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:02:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:02:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:02:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:02:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:02:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:02:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:02:23 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:02:23 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:02:24 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:02:10.958021 End time: 2026-06-03 09:02:23.960928 2026-06-03 09:02:24 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:02:24 INFO tclean::::casa ########################################## 2026-06-03 09:02:24 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:02:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:02:24 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) 2026-06-03 09:02:24 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:02:24 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:02:24 2026****** 2026-06-03 09:02:24 INFO ImageFitter::fit+ 2026-06-03 09:02:24 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:02:24 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:02:24 INFO ImageFitter::fit+ --- region: 2026-06-03 09:02:24 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:02:24 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:02:24 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:02:24 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:02:24 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:02:24 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:02:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:02:24 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) 2026-06-03 09:02:24 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:02:24 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:02:24 INFO imstat::::casa ########################################## 2026-06-03 09:02:24 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:02:24 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 ) 2026-06-03 09:02:24 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:02:24 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:02:24 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:02:24 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:02:24 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:02:24 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) 2026-06-03 09:02:24 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:02:24 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:02:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:02:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:02:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:02:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:02:24 INFO imstat:::: Values --- 2026-06-03 09:02:24 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:02:24 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:02:24 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:02:24 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-06-03 09:02:24 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:02:24 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 09:02:24 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:02:24 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-06-03 09:02:24 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:02:24 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:02:24 INFO imstat:::: Statistics --- 2026-06-03 09:02:24 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:02:24 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:02:24 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:02:24 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:02:24 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-06-03 09:02:24 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-06-03 09:02:24 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-06-03 09:02:24 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-06-03 09:02:24 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-06-03 09:02:24 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:02:24 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:02:24 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:02:24 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:02:24 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:02:24 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:02:24 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 2026-06-03 09:02:24 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:02:24.046382 End time: 2026-06-03 09:02:24.076510 2026-06-03 09:02:24 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:02:24 INFO imstat::::casa ########################################## 2026-06-03 09:02:24 INFO phaseshift::::casa ########################################## 2026-06-03 09:02:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:02:24 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40.100000528deg' ) 2026-06-03 09:02:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:02:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:02:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:02:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:02:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:02:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:02:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:02:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:02:24 INFO MSTransformManager::open Select data 2026-06-03 09:02:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:02:26 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:02:26 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40.100000528deg' successfully parsed 2026-06-03 09:02:26 INFO phaseshift::::casa Shift phase center 2026-06-03 09:02:26 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:02:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:02:24.094631 End time: 2026-06-03 09:02:26.348255 2026-06-03 09:02:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:02:26 INFO phaseshift::::casa ########################################## 2026-06-03 09:02:26 INFO tclean::::casa ########################################## 2026-06-03 09:02:26 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:02:26 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:02:26 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:02:26 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:02:26 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:02:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:02:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:02:27 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:02:27 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:02:27 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:02:27 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:02:27 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:02:27 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:02:27 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:02:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:02:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017962 2026-06-03 09:02:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:02:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:02:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:02:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:02:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:02:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:02:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:02:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:02:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:02:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:02:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:02:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:02:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:02:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:02:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:02:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:02:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:02:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:02:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:02:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:02:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:02:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:02:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:02:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:02:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:02:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:02:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:02:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:02:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:02:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:02:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:02:35 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:02:36 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:02:26.407944 End time: 2026-06-03 09:02:35.970896 2026-06-03 09:02:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:02:36 INFO tclean::::casa ########################################## 2026-06-03 09:02:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:02:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:02:36 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) 2026-06-03 09:02:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:02:36 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:02:36 2026****** 2026-06-03 09:02:36 INFO ImageFitter::fit+ 2026-06-03 09:02:36 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:02:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:02:36 INFO ImageFitter::fit+ --- region: 2026-06-03 09:02:36 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:02:36 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:02:36 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:02:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:02:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:02:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:02:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:02:36 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) 2026-06-03 09:02:36 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:02:36 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:02:36 INFO imstat::::casa ########################################## 2026-06-03 09:02:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:02:36 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 ) 2026-06-03 09:02:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:02:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:02:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:02:36 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:02:36 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:02:36 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:02:36 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:02:36 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:02:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:02:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:02:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:02:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:02:36 INFO imstat:::: Values --- 2026-06-03 09:02:36 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:02:36 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:02:36 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:02:36 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-06-03 09:02:36 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:02:36 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:02:36 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:02:36 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-06-03 09:02:36 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:02:36 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:02:36 INFO imstat:::: Statistics --- 2026-06-03 09:02:36 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:02:36 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:02:36 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:02:36 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:02:36 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-06-03 09:02:36 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-06-03 09:02:36 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-06-03 09:02:36 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-06-03 09:02:36 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-06-03 09:02:36 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:02:36 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:02:36 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:02:36 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:02:36 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:02:36 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:02:36 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 2026-06-03 09:02:36 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:02:36.045674 End time: 2026-06-03 09:02:36.072290 2026-06-03 09:02:36 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:02:36 INFO imstat::::casa ########################################## 2026-06-03 09:02:36 INFO phaseshift::::casa ########################################## 2026-06-03 09:02:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:02:36 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 0.699877039rad' ) 2026-06-03 09:02:36 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:02:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:02:36 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:02:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:02:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:02:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:02:36 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:02:36 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:02:36 INFO MSTransformManager::open Select data 2026-06-03 09:02:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:02:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:02:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 0.699877039rad' successfully parsed 2026-06-03 09:02:38 INFO phaseshift::::casa Shift phase center 2026-06-03 09:02:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:02:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:02:36.090045 End time: 2026-06-03 09:02:40.266872 2026-06-03 09:02:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:02:40 INFO phaseshift::::casa ########################################## 2026-06-03 09:02:40 INFO tclean::::casa ########################################## 2026-06-03 09:02:40 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:02:40 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, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:02:40 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:02:40 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:02:40 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:02:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:02:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:02:40 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:02:40 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:02:40 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:02:40 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:02:40 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:02:40 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:02:40 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:02:41 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:02:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024564 2026-06-03 09:02:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:02:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:02:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:02:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:02:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:02:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:02:43 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:02:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:02:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:02:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:02:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:02:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:02:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:02:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:02:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:02:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:02:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:02:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:02:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:02:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:02:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:02:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:02:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:02:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:02:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:02:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:02:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:02:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:02:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:02:49 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:02:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:02:50 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:02:52 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:02:40.319450 End time: 2026-06-03 09:02:51.627863 2026-06-03 09:02:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:02:52 INFO tclean::::casa ########################################## 2026-06-03 09:02:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:02:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:02:52 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) 2026-06-03 09:02:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:02:52 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:02:52 2026****** 2026-06-03 09:02:52 INFO ImageFitter::fit+ 2026-06-03 09:02:52 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:02:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:02:52 INFO ImageFitter::fit+ --- region: 2026-06-03 09:02:52 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:02:52 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:02:52 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:02:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:02:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:02:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:02:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:02:52 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) 2026-06-03 09:02:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:02:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:02:52 INFO imstat::::casa ########################################## 2026-06-03 09:02:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:02:52 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 ) 2026-06-03 09:02:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:02:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:02:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:02:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:02:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:02:52 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) 2026-06-03 09:02:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:02:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:02:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:02:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:02:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:02:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:02:52 INFO imstat:::: Values --- 2026-06-03 09:02:52 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:02:52 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:02:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:02:52 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-06-03 09:02:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:02:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:02:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:02:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-06-03 09:02:52 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:02:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:02:52 INFO imstat:::: Statistics --- 2026-06-03 09:02:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:02:52 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:02:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:02:52 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:02:52 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-06-03 09:02:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-06-03 09:02:52 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-06-03 09:02:52 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-06-03 09:02:52 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-06-03 09:02:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:02:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:02:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:02:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:02:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:02:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:02:52 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 2026-06-03 09:02:52 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:02:51.701672 End time: 2026-06-03 09:02:51.740938 2026-06-03 09:02:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:02:52 INFO imstat::::casa ########################################## 2026-06-03 09:02:52 INFO phaseshift::::casa ########################################## 2026-06-03 09:02:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:02:52 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40d06m0.0019' ) 2026-06-03 09:02:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:02:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:02:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:02:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:02:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:02:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:02:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:02:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:02:52 INFO MSTransformManager::open Select data 2026-06-03 09:02:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:02:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:02:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40d06m0.0019' successfully parsed 2026-06-03 09:02:55 INFO phaseshift::::casa Shift phase center 2026-06-03 09:02:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:02:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:02:51.760783 End time: 2026-06-03 09:02:55.445915 2026-06-03 09:02:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:02:55 INFO phaseshift::::casa ########################################## 2026-06-03 09:02:55 INFO tclean::::casa ########################################## 2026-06-03 09:02:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:02:55 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:02:55 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:02:55 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:02:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:02:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:02:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:02:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:02:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:02:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:02:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:02:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:02:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:02:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:02:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:02:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028449 2026-06-03 09:02:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:02:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:02:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:02:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:02:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:02:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:02:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:02:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:02:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:02:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:02:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:02:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:02:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:02:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:03:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:03:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:03:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:03:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:03:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:03:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:03:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:03:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:03:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:03:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:03:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:03:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:03:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:03:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:03:04 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:03:04 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:03:04 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:03:05 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:03:06 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:03:07 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:02:55.487438 End time: 2026-06-03 09:03:06.817689 2026-06-03 09:03:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:03:07 INFO tclean::::casa ########################################## 2026-06-03 09:03:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:03:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:03:07 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:03:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:03:07 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:03:07 2026****** 2026-06-03 09:03:07 INFO ImageFitter::fit+ 2026-06-03 09:03:07 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:03:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:03:07 INFO ImageFitter::fit+ --- region: 2026-06-03 09:03:07 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:03:07 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:03:07 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:03:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:03:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:03:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:03:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:03:07 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:03:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:03:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:03:07 INFO imstat::::casa ########################################## 2026-06-03 09:03:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:03:07 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:03:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:03:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:03:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:03:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:03:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:03:07 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:03:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:03:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:03:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:03:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:03:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:03:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:03:07 INFO imstat:::: Values --- 2026-06-03 09:03:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:03:07 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:03:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:03:07 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-06-03 09:03:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:03:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:03:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:03:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-06-03 09:03:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:03:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:03:07 INFO imstat:::: Statistics --- 2026-06-03 09:03:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:03:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:03:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:03:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:03:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-06-03 09:03:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-06-03 09:03:07 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-06-03 09:03:07 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-06-03 09:03:07 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-06-03 09:03:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:03:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:03:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:03:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:03:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:03:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:03:07 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 2026-06-03 09:03:07 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:03:06.895250 End time: 2026-06-03 09:03:06.921873 2026-06-03 09:03:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:03:07 INFO imstat::::casa ########################################## 2026-06-03 09:03:07 INFO phaseshift::::casa ########################################## 2026-06-03 09:03:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:03:07 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 02:40:24.0001' ) 2026-06-03 09:03:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:03:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:03:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:03:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:03:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:03:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:03:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:03:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:03:07 INFO MSTransformManager::open Select data 2026-06-03 09:03:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:03:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-06-03 09:03:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 02:40:24.0001' successfully parsed 2026-06-03 09:03:10 INFO phaseshift::::casa Shift phase center 2026-06-03 09:03:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:03:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:03:06.938779 End time: 2026-06-03 09:03:10.181797 2026-06-03 09:03:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:03:10 INFO phaseshift::::casa ########################################## 2026-06-03 09:03:10 INFO tclean::::casa ########################################## 2026-06-03 09:03:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:03:10 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:03:10 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:03:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:03:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:03:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:03:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:03:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:03:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:03:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:03:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:03:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:03:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:03:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:03:13 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:03:13 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022807 2026-06-03 09:03:13 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:03:13 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:03:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:03:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:03:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:03:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:03:15 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:03:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:03:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:03:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:03:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:03:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:03:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:03:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:03:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:03:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:03:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:03:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:03:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:03:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:03:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:03:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:03:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:03:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:03:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:03:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:03:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:03:21 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:03:21 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:03:21 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:03:22 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:03:22 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:03:24 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:03:10.241900 End time: 2026-06-03 09:03:23.835039 2026-06-03 09:03:24 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:03:24 INFO tclean::::casa ########################################## 2026-06-03 09:03:24 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:03:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:03:24 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) 2026-06-03 09:03:24 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:03:24 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:03:24 2026****** 2026-06-03 09:03:24 INFO ImageFitter::fit+ 2026-06-03 09:03:24 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:03:24 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:03:24 INFO ImageFitter::fit+ --- region: 2026-06-03 09:03:24 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:03:24 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:03:24 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:03:24 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:03:24 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:03:24 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:03:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:03:24 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) 2026-06-03 09:03:24 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:03:24 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:03:24 INFO imstat::::casa ########################################## 2026-06-03 09:03:24 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:03:24 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 ) 2026-06-03 09:03:24 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:03:24 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:03:24 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:03:24 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:03:24 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:03:24 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) 2026-06-03 09:03:24 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:03:24 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:03:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:03:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:03:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:03:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:03:24 INFO imstat:::: Values --- 2026-06-03 09:03:24 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:03:24 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:03:24 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:03:24 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-06-03 09:03:24 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:03:24 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 09:03:24 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:03:24 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-06-03 09:03:24 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:03:24 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:03:24 INFO imstat:::: Statistics --- 2026-06-03 09:03:24 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:03:24 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:03:24 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:03:24 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:03:24 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-06-03 09:03:24 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-06-03 09:03:24 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-06-03 09:03:24 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-06-03 09:03:24 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-06-03 09:03:24 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:03:24 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:03:24 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:03:24 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:03:24 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:03:24 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:03:24 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 2026-06-03 09:03:24 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:03:23.915729 End time: 2026-06-03 09:03:23.943099 2026-06-03 09:03:24 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:03:24 INFO imstat::::casa ########################################## 2026-06-03 09:03:24 INFO phaseshift::::casa ########################################## 2026-06-03 09:03:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:03:24 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40.100000528deg' ) 2026-06-03 09:03:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:03:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:03:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:03:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:03:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:03:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:03:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:03:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:03:24 INFO MSTransformManager::open Select data 2026-06-03 09:03:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:03:26 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:03:26 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40.100000528deg' successfully parsed 2026-06-03 09:03:26 INFO phaseshift::::casa Shift phase center 2026-06-03 09:03:27 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:03:27 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:03:23.960430 End time: 2026-06-03 09:03:27.076737 2026-06-03 09:03:27 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:03:27 INFO phaseshift::::casa ########################################## 2026-06-03 09:03:27 INFO tclean::::casa ########################################## 2026-06-03 09:03:27 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:03:27 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:03:27 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:03:27 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:03:27 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:03:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:03:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:03:27 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:03:27 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:03:27 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:03:27 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:03:27 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:03:27 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:03:27 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:03:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:03:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028583 2026-06-03 09:03:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:03:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:03:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:03:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:03:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:03:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:03:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:03:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:03:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:03:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:03:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:03:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:03:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:03:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:03:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:03:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:03:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:03:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:03:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:03:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:03:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:03:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:03:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:03:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:03:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:03:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:03:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:03:35 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:03:35 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:03:35 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:03:35 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:03:35 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:03:36 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:03:27.136113 End time: 2026-06-03 09:03:35.930438 2026-06-03 09:03:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:03:36 INFO tclean::::casa ########################################## 2026-06-03 09:03:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:03:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:03:36 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) 2026-06-03 09:03:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:03:36 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:03:36 2026****** 2026-06-03 09:03:36 INFO ImageFitter::fit+ 2026-06-03 09:03:36 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:03:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:03:36 INFO ImageFitter::fit+ --- region: 2026-06-03 09:03:36 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:03:36 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:03:36 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:03:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:03:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:03:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:03:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:03:36 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) 2026-06-03 09:03:36 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:03:36 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:03:36 INFO imstat::::casa ########################################## 2026-06-03 09:03:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:03:36 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 ) 2026-06-03 09:03:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:03:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:03:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:03:36 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:03:36 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:03:36 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:03:36 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:03:36 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:03:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:03:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:03:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:03:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:03:36 INFO imstat:::: Values --- 2026-06-03 09:03:36 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:03:36 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:03:36 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:03:36 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-06-03 09:03:36 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:03:36 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:03:36 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:03:36 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-06-03 09:03:36 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:03:36 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:03:36 INFO imstat:::: Statistics --- 2026-06-03 09:03:36 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:03:36 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:03:36 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:03:36 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:03:36 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-06-03 09:03:36 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-06-03 09:03:36 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-06-03 09:03:36 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-06-03 09:03:36 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-06-03 09:03:36 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:03:36 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:03:36 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:03:36 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:03:36 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:03:36 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:03:36 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 2026-06-03 09:03:36 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:03:35.998040 End time: 2026-06-03 09:03:36.022712 2026-06-03 09:03:36 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:03:36 INFO imstat::::casa ########################################## 2026-06-03 09:03:36 INFO phaseshift::::casa ########################################## 2026-06-03 09:03:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:03:36 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 0.699877039rad' ) 2026-06-03 09:03:36 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:03:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:03:36 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:03:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:03:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:03:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:03:36 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:03:36 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:03:36 INFO MSTransformManager::open Select data 2026-06-03 09:03:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:03:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:03:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 0.699877039rad' successfully parsed 2026-06-03 09:03:39 INFO phaseshift::::casa Shift phase center 2026-06-03 09:03:41 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:03:41 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:03:36.038566 End time: 2026-06-03 09:03:40.958580 2026-06-03 09:03:41 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:03:41 INFO phaseshift::::casa ########################################## 2026-06-03 09:03:41 INFO tclean::::casa ########################################## 2026-06-03 09:03:41 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:03:41 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, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:03:41 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:03:41 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:03:41 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:03:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:03:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:03:41 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:03:41 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:03:41 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:03:41 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:03:41 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:03:41 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:03:41 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:03:43 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:03:43 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027358 2026-06-03 09:03:43 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:03:43 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:03:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:03:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:03:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:03:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:03:44 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:03:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:03:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:03:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:03:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:03:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:03:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:03:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:03:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:03:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:03:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:03:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:03:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:03:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:03:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:03:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:03:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:03:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:03:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:03:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:03:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:03:51 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:03:51 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:03:51 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:03:51 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:03:51 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:03:52 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:03:41.014125 End time: 2026-06-03 09:03:52.331178 2026-06-03 09:03:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:03:52 INFO tclean::::casa ########################################## 2026-06-03 09:03:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:03:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:03:52 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) 2026-06-03 09:03:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:03:52 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:03:52 2026****** 2026-06-03 09:03:52 INFO ImageFitter::fit+ 2026-06-03 09:03:52 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:03:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:03:52 INFO ImageFitter::fit+ --- region: 2026-06-03 09:03:52 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:03:52 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:03:52 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:03:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:03:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:03:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:03:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:03:52 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) 2026-06-03 09:03:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:03:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:03:52 INFO imstat::::casa ########################################## 2026-06-03 09:03:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:03:52 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 ) 2026-06-03 09:03:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:03:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:03:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:03:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:03:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:03:52 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) 2026-06-03 09:03:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:03:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:03:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:03:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:03:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:03:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:03:52 INFO imstat:::: Values --- 2026-06-03 09:03:52 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:03:52 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:03:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:03:52 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-06-03 09:03:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:03:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:03:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:03:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-06-03 09:03:52 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:03:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:03:52 INFO imstat:::: Statistics --- 2026-06-03 09:03:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:03:52 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:03:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:03:52 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:03:52 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-06-03 09:03:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-06-03 09:03:52 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-06-03 09:03:52 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-06-03 09:03:52 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-06-03 09:03:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:03:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:03:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:03:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:03:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:03:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:03:52 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 2026-06-03 09:03:52 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:03:52.374046 End time: 2026-06-03 09:03:52.392552 2026-06-03 09:03:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:03:52 INFO imstat::::casa ########################################## 2026-06-03 09:03:52 INFO phaseshift::::casa ########################################## 2026-06-03 09:03:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:03:52 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' ) 2026-06-03 09:03:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:03:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:03:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:03:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:03:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:03:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:03:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:03:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:03:52 INFO MSTransformManager::open Select data 2026-06-03 09:03:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:03:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:03:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40d06m0.0019' successfully parsed 2026-06-03 09:03:55 INFO phaseshift::::casa Shift phase center 2026-06-03 09:03:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:03:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:03:52.404882 End time: 2026-06-03 09:03:55.423803 2026-06-03 09:03:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:03:55 INFO phaseshift::::casa ########################################## 2026-06-03 09:03:55 INFO tclean::::casa ########################################## 2026-06-03 09:03:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:03:55 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:03:55 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:03:55 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:03:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:03:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:03:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:03:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:03:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:03:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:03:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:03:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:03:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:03:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:03:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:03:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023416 2026-06-03 09:03:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:03:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:03:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:03:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:03:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:03:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:03:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:03:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:03:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:03:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:03:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:03:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:04:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:04:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:04:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:04:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:04:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:04:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:04:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:04:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:04:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:04:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:04:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:04:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:04:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:04:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:04:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:04:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:04:03 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:04:03 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:04:03 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:04:04 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:04:04 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:04:04 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:03:55.483295 End time: 2026-06-03 09:04:04.373577 2026-06-03 09:04:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:04:04 INFO tclean::::casa ########################################## 2026-06-03 09:04:04 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:04:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:04 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) 2026-06-03 09:04:04 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:04:04 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:04:04 2026****** 2026-06-03 09:04:04 INFO ImageFitter::fit+ 2026-06-03 09:04:04 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:04:04 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:04:04 INFO ImageFitter::fit+ --- region: 2026-06-03 09:04:04 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:04:04 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:04:04 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:04:04 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:04:04 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:04:04 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:04:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:04 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:04:04 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:04:04 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:04:04 INFO imstat::::casa ########################################## 2026-06-03 09:04:04 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:04:04 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 ) 2026-06-03 09:04:04 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:04:04 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:04:04 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:04:04 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:04:04 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:04 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:04:04 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:04:04 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:04:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:04:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:04:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:04:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:04:04 INFO imstat:::: Values --- 2026-06-03 09:04:04 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:04:04 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:04:04 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:04:04 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-06-03 09:04:04 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:04:04 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:04:04 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:04:04 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-06-03 09:04:04 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:04:04 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:04:04 INFO imstat:::: Statistics --- 2026-06-03 09:04:04 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:04:04 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:04:04 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:04:04 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:04:04 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-06-03 09:04:04 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-06-03 09:04:04 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-06-03 09:04:04 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-06-03 09:04:04 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-06-03 09:04:04 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:04:04 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:04:04 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:04:04 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:04:04 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:04:04 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:04:04 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 2026-06-03 09:04:04 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:04:04.428821 End time: 2026-06-03 09:04:04.451206 2026-06-03 09:04:04 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:04:04 INFO imstat::::casa ########################################## 2026-06-03 09:04:04 INFO phaseshift::::casa ########################################## 2026-06-03 09:04:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:04:04 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 02:40:24.0001' ) 2026-06-03 09:04:04 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:04:04 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:04:04 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:04:04 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:04:04 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:04:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:04:05 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:04:05 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:04:05 INFO MSTransformManager::open Select data 2026-06-03 09:04:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:04:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-06-03 09:04:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 02:40:24.0001' successfully parsed 2026-06-03 09:04:07 INFO phaseshift::::casa Shift phase center 2026-06-03 09:04:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:04:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:04:04.465600 End time: 2026-06-03 09:04:07.573124 2026-06-03 09:04:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:04:08 INFO phaseshift::::casa ########################################## 2026-06-03 09:04:08 INFO tclean::::casa ########################################## 2026-06-03 09:04:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:04:08 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:04:08 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:04:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:04:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:04:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:04:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:04:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:04:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:04:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:04:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:04:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:04:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:04:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:04:09 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:04:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.033588 2026-06-03 09:04:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:04:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:04:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:04:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:04:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:04:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:04:11 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:04:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:04:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:04:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:04:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:04:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:04:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:04:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:04:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:04:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:04:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:04:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:04:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:04:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:04:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:04:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:04:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:04:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:04:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:04:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:04:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:04:15 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:04:15 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:04:15 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:04:15 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:04:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:04:16 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:04:07.632973 End time: 2026-06-03 09:04:16.397972 2026-06-03 09:04:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:04:16 INFO tclean::::casa ########################################## 2026-06-03 09:04:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:04:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:16 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) 2026-06-03 09:04:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:04:16 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:04:16 2026****** 2026-06-03 09:04:16 INFO ImageFitter::fit+ 2026-06-03 09:04:16 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:04:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:04:16 INFO ImageFitter::fit+ --- region: 2026-06-03 09:04:16 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:04:16 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:04:16 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:04:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:04:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:04:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:04:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:16 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-06-03 09:04:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:04:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:04:16 INFO imstat::::casa ########################################## 2026-06-03 09:04:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:04:16 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 ) 2026-06-03 09:04:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:04:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:04:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:04:16 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:04:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:16 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) 2026-06-03 09:04:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:04:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:04:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:04:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:04:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:04:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:04:16 INFO imstat:::: Values --- 2026-06-03 09:04:16 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:04:16 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:04:16 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:04:16 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-06-03 09:04:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:04:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 09:04:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:04:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-06-03 09:04:16 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:04:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:04:16 INFO imstat:::: Statistics --- 2026-06-03 09:04:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:04:16 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:04:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:04:16 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:04:16 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-06-03 09:04:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-06-03 09:04:16 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-06-03 09:04:16 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-06-03 09:04:16 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-06-03 09:04:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:04:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:04:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:04:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:04:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:04:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:04:16 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780943e-05 4.999996e+00 2026-06-03 09:04:17 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:04:16.465502 End time: 2026-06-03 09:04:16.498349 2026-06-03 09:04:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:04:17 INFO imstat::::casa ########################################## 2026-06-03 09:04:17 INFO phaseshift::::casa ########################################## 2026-06-03 09:04:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:04:17 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40.100000528deg' ) 2026-06-03 09:04:17 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:04:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:04:17 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:04:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:04:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:04:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:04:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:04:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:04:17 INFO MSTransformManager::open Select data 2026-06-03 09:04:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:04:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:04:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40.100000528deg' successfully parsed 2026-06-03 09:04:20 INFO phaseshift::::casa Shift phase center 2026-06-03 09:04:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:04:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:04:16.513633 End time: 2026-06-03 09:04:20.600756 2026-06-03 09:04:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:04:21 INFO phaseshift::::casa ########################################## 2026-06-03 09:04:21 INFO tclean::::casa ########################################## 2026-06-03 09:04:21 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:04:21 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:04:21 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:04:21 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:04:21 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:04:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:04:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:04:21 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:04:21 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:04:21 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:04:21 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:04:21 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:04:21 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:04:21 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:04:22 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:04:22 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023489 2026-06-03 09:04:22 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:04:22 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:04:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:04:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:04:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:04:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:04:24 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:04:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:04:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:04:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:04:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:04:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:04:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:04:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:04:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:04:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:04:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:04:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:04:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:04:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:04:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:04:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:04:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:04:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:04:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:04:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:04:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:04:28 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:04:28 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:04:28 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:04:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:04:30 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:04:30 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:04:20.660881 End time: 2026-06-03 09:04:30.433928 2026-06-03 09:04:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:04:30 INFO tclean::::casa ########################################## 2026-06-03 09:04:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:04:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:30 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) 2026-06-03 09:04:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:04:30 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:04:30 2026****** 2026-06-03 09:04:30 INFO ImageFitter::fit+ 2026-06-03 09:04:30 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:04:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:04:30 INFO ImageFitter::fit+ --- region: 2026-06-03 09:04:30 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:04:30 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:04:30 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:04:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:04:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:04:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:04:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:30 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) 2026-06-03 09:04:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:04:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:04:31 INFO imstat::::casa ########################################## 2026-06-03 09:04:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:04:31 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 ) 2026-06-03 09:04:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:04:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:04:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:04:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:04:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:31 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) 2026-06-03 09:04:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:04:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:04:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:04:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:04:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:04:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:04:31 INFO imstat:::: Values --- 2026-06-03 09:04:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:04:31 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:04:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:04:31 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-06-03 09:04:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:04:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:04:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:04:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-06-03 09:04:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:04:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:04:31 INFO imstat:::: Statistics --- 2026-06-03 09:04:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:04:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:04:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:04:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:04:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-06-03 09:04:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-06-03 09:04:31 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-06-03 09:04:31 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-06-03 09:04:31 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-06-03 09:04:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:04:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:04:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:04:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:04:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:04:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:04:31 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 2026-06-03 09:04:31 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:04:30.506658 End time: 2026-06-03 09:04:30.540929 2026-06-03 09:04:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:04:31 INFO imstat::::casa ########################################## 2026-06-03 09:04:31 INFO phaseshift::::casa ########################################## 2026-06-03 09:04:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:04:31 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 0.699877039rad' ) 2026-06-03 09:04:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:04:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:04:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:04:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:04:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:04:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:04:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:04:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:04:31 INFO MSTransformManager::open Select data 2026-06-03 09:04:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:04:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:04:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 0.699877039rad' successfully parsed 2026-06-03 09:04:33 INFO phaseshift::::casa Shift phase center 2026-06-03 09:04:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:04:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:04:30.556519 End time: 2026-06-03 09:04:33.856087 2026-06-03 09:04:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:04:34 INFO phaseshift::::casa ########################################## 2026-06-03 09:04:34 INFO tclean::::casa ########################################## 2026-06-03 09:04:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:04:34 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:04:34 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:04:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:04:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:04:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:04:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:04:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:04:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:04:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:04:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:04:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:04:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:04:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:04:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:04:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029041 2026-06-03 09:04:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:04:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:04:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:04:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:04:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:04:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:04:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:04:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:04:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:04:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:04:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:04:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:04:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:04:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:04:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:04:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:04:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:04:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:04:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:04:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:04:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:04:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:04:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:04:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:04:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:04:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:04:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:04:40 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:04:40 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:04:40 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:04:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:04:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:04:41 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:04:33.911943 End time: 2026-06-03 09:04:40.947025 2026-06-03 09:04:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:04:41 INFO tclean::::casa ########################################## 2026-06-03 09:04:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:04:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:41 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:04:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:04:41 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:04:41 2026****** 2026-06-03 09:04:41 INFO ImageFitter::fit+ 2026-06-03 09:04:41 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:04:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:04:41 INFO ImageFitter::fit+ --- region: 2026-06-03 09:04:41 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:04:41 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:04:41 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:04:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:04:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:04:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:04:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:41 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:04:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:04:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:04:41 INFO imstat::::casa ########################################## 2026-06-03 09:04:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:04:41 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:04:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:04:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:04:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:04:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:04:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:41 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:04:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:04:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:04:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:04:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:04:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:04:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:04:41 INFO imstat:::: Values --- 2026-06-03 09:04:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:04:41 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:04:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:04:41 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-06-03 09:04:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:04:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:04:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:04:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-06-03 09:04:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:04:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:04:41 INFO imstat:::: Statistics --- 2026-06-03 09:04:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:04:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:04:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:04:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:04:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-06-03 09:04:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-06-03 09:04:41 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-06-03 09:04:41 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-06-03 09:04:41 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-06-03 09:04:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:04:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:04:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:04:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:04:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:04:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:04:41 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 2026-06-03 09:04:41 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:04:41.024502 End time: 2026-06-03 09:04:41.058444 2026-06-03 09:04:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:04:41 INFO imstat::::casa ########################################## 2026-06-03 09:04:41 INFO phaseshift::::casa ########################################## 2026-06-03 09:04:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:04:41 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40d06m0.0019' ) 2026-06-03 09:04:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:04:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:04:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:04:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:04:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:04:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:04:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:04:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:04:41 INFO MSTransformManager::open Select data 2026-06-03 09:04:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:04:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:04:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40d06m0.0019' successfully parsed 2026-06-03 09:04:44 INFO phaseshift::::casa Shift phase center 2026-06-03 09:04:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:04:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:04:41.083894 End time: 2026-06-03 09:04:44.845458 2026-06-03 09:04:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:04:45 INFO phaseshift::::casa ########################################## 2026-06-03 09:04:45 INFO tclean::::casa ########################################## 2026-06-03 09:04:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:04:45 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:04:45 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:04:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:04:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:04:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:04:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:04:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:04:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:04:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:04:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:04:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:04:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:04:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:04:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:04:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026425 2026-06-03 09:04:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:04:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:04:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:04:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:04:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:04:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:04:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:04:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:04:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:04:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:04:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:04:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:04:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:04:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:04:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:04:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:04:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:04:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:04:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:04:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:04:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:04:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:04:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:04:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:04:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:04:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:04:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:04:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:04:53 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:04:53 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:04:53 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:04:54 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:04:54 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:04:55 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:04:44.900960 End time: 2026-06-03 09:04:55.294590 2026-06-03 09:04:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:04:55 INFO tclean::::casa ########################################## 2026-06-03 09:04:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:04:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:55 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) 2026-06-03 09:04:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:04:55 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:04:55 2026****** 2026-06-03 09:04:55 INFO ImageFitter::fit+ 2026-06-03 09:04:55 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:04:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:04:55 INFO ImageFitter::fit+ --- region: 2026-06-03 09:04:55 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:04:55 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:04:55 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:04:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:04:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:04:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:04:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:55 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) 2026-06-03 09:04:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:04:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:04:55 INFO imstat::::casa ########################################## 2026-06-03 09:04:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:04:55 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 ) 2026-06-03 09:04:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:04:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:04:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:04:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:04:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:04:55 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:04:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:04:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:04:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:04:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:04:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:04:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:04:55 INFO imstat:::: Values --- 2026-06-03 09:04:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:04:55 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:04:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:04:55 INFO imstat:::: -- minimum value [min]: -7.77984e-05 Jy/beam 2026-06-03 09:04:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:04:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:04:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:04:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-06-03 09:04:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:04:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:04:55 INFO imstat:::: Statistics --- 2026-06-03 09:04:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:04:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:04:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:04:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:04:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86704e-05 Jy/beam 2026-06-03 09:04:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7365e-05 Jy/beam 2026-06-03 09:04:55 INFO imstat:::: -- IQR [quartile]: 3.56348e-05 Jy/beam 2026-06-03 09:04:55 INFO imstat:::: -- First quartile [q1]: -3.45131e-05 Jy/beam 2026-06-03 09:04:55 INFO imstat:::: -- Third quartile [q3]: 1.12172e-06 Jy/beam 2026-06-03 09:04:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:04:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:04:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:04:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:04:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:04:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:04:55 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 2026-06-03 09:04:55 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:04:55.366395 End time: 2026-06-03 09:04:55.393228 2026-06-03 09:04:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:04:55 INFO imstat::::casa ########################################## 2026-06-03 09:04:55 INFO phaseshift::::casa ########################################## 2026-06-03 09:04:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:04:55 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 02:40:24.0001' ) 2026-06-03 09:04:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:04:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:04:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:04:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:04:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:04:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:04:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:04:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:04:55 INFO MSTransformManager::open Select data 2026-06-03 09:04:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:04:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-06-03 09:04:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 02:40:24.0001' successfully parsed 2026-06-03 09:04:57 INFO phaseshift::::casa Shift phase center 2026-06-03 09:04:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:04:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:04:55.409702 End time: 2026-06-03 09:04:57.515340 2026-06-03 09:04:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:04:58 INFO phaseshift::::casa ########################################## 2026-06-03 09:04:58 INFO tclean::::casa ########################################## 2026-06-03 09:04:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:04:58 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:04:58 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:04:58 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:04:58 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:04:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:04:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:04:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:04:58 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:04:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:04:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:04:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:04:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:04:58 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:04:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:05:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023345 2026-06-03 09:05:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:05:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:05:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:05:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:05:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:05:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:05:01 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:05:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:05:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:05:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:05:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:05:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:05:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:05:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:05:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:05:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:05:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:05:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:05:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:05:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:05:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:05:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:05:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:05:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:05:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:05:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:05:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:05:06 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:05:06 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:05:06 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:05:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:05:07 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:05:07 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:04:57.571255 End time: 2026-06-03 09:05:07.199927 2026-06-03 09:05:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:05:07 INFO tclean::::casa ########################################## 2026-06-03 09:05:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:05:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:05:07 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:05:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:05:07 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:05:07 2026****** 2026-06-03 09:05:07 INFO ImageFitter::fit+ 2026-06-03 09:05:07 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:05:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:05:07 INFO ImageFitter::fit+ --- region: 2026-06-03 09:05:07 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:05:07 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:05:07 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:05:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:05:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:05:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:05:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:05:07 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) 2026-06-03 09:05:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116894 Jy 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126508 Jy 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:05:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:05:07 INFO imstat::::casa ########################################## 2026-06-03 09:05:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:05:07 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:05:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:05:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:05:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:05:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:05:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:05:07 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:05:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:05:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:05:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:05:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:05:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:05:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:05:07 INFO imstat:::: Values --- 2026-06-03 09:05:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:05:07 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:05:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:05:07 INFO imstat:::: -- minimum value [min]: -7.78076e-05 Jy/beam 2026-06-03 09:05:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:05:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 09:05:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:05:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-06-03 09:05:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:05:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:05:07 INFO imstat:::: Statistics --- 2026-06-03 09:05:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:05:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:05:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:05:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:05:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86848e-05 Jy/beam 2026-06-03 09:05:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73951e-05 Jy/beam 2026-06-03 09:05:07 INFO imstat:::: -- IQR [quartile]: 3.56676e-05 Jy/beam 2026-06-03 09:05:07 INFO imstat:::: -- First quartile [q1]: -3.45186e-05 Jy/beam 2026-06-03 09:05:07 INFO imstat:::: -- Third quartile [q3]: 1.14894e-06 Jy/beam 2026-06-03 09:05:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:05:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:05:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:05:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:05:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:05:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:05:07 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 2026-06-03 09:05:07 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:05:07.258026 End time: 2026-06-03 09:05:07.280969 2026-06-03 09:05:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:05:07 INFO imstat::::casa ########################################## 2026-06-03 09:05:07 INFO phaseshift::::casa ########################################## 2026-06-03 09:05:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:05:07 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40.100000528deg' ) 2026-06-03 09:05:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:05:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:05:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:05:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:05:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:05:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:05:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:05:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:05:07 INFO MSTransformManager::open Select data 2026-06-03 09:05:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:05:09 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:05:09 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40.100000528deg' successfully parsed 2026-06-03 09:05:09 INFO phaseshift::::casa Shift phase center 2026-06-03 09:05:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:05:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:05:07.295714 End time: 2026-06-03 09:05:10.033250 2026-06-03 09:05:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:05:10 INFO phaseshift::::casa ########################################## 2026-06-03 09:05:10 INFO tclean::::casa ########################################## 2026-06-03 09:05:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:05:10 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, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:05:10 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:05:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:05:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:05:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:05:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:05:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:05:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:05:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:05:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:05:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:05:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:05:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:05:11 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:05:11 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027874 2026-06-03 09:05:11 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:05:11 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:05:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:05:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:05:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:05:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:05:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:05:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:05:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:05:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:05:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:05:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:05:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:05:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:05:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:05:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:05:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:05:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:05:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:05:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:05:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:05:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:05:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:05:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:05:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:05:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:05:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:05:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:05:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:05:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:05:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:05:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:05:19 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:05:10.092948 End time: 2026-06-03 09:05:19.089859 2026-06-03 09:05:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:05:19 INFO tclean::::casa ########################################## 2026-06-03 09:05:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:05:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:05:19 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:05:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:05:19 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:05:19 2026****** 2026-06-03 09:05:19 INFO ImageFitter::fit+ 2026-06-03 09:05:19 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:05:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:05:19 INFO ImageFitter::fit+ --- region: 2026-06-03 09:05:19 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:05:19 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:05:19 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:05:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:05:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:05:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:05:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:05:19 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:05:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116882 Jy 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:05:19 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:05:19 INFO imstat::::casa ########################################## 2026-06-03 09:05:19 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:05:19 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:05:19 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:05:19 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:05:19 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:05:19 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:05:19 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:05:19 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:05:19 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:05:19 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:05:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:05:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:05:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:05:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:05:19 INFO imstat:::: Values --- 2026-06-03 09:05:19 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:05:19 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:05:19 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:05:19 INFO imstat:::: -- minimum value [min]: -7.77982e-05 Jy/beam 2026-06-03 09:05:19 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:05:19 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:05:19 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:05:19 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-06-03 09:05:19 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:05:19 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:05:19 INFO imstat:::: Statistics --- 2026-06-03 09:05:19 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:05:19 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:05:19 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:05:19 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:05:19 INFO imstat:::: -- Median of the pixel values [median]: -1.86711e-05 Jy/beam 2026-06-03 09:05:19 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73646e-05 Jy/beam 2026-06-03 09:05:19 INFO imstat:::: -- IQR [quartile]: 3.56367e-05 Jy/beam 2026-06-03 09:05:19 INFO imstat:::: -- First quartile [q1]: -3.45138e-05 Jy/beam 2026-06-03 09:05:19 INFO imstat:::: -- Third quartile [q3]: 1.12291e-06 Jy/beam 2026-06-03 09:05:19 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:05:19 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:05:19 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:05:19 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:05:19 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:05:19 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:05:19 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 2026-06-03 09:05:19 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:05:19.171520 End time: 2026-06-03 09:05:19.210204 2026-06-03 09:05:19 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:05:19 INFO imstat::::casa ########################################## 2026-06-03 09:05:19 INFO phaseshift::::casa ########################################## 2026-06-03 09:05:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:05:19 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 0.699877039rad' ) 2026-06-03 09:05:19 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:05:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:05:19 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:05:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:05:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:05:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:05:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:05:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:05:19 INFO MSTransformManager::open Select data 2026-06-03 09:05:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:05:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:05:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 0.699877039rad' successfully parsed 2026-06-03 09:05:21 INFO phaseshift::::casa Shift phase center 2026-06-03 09:05:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:05:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:05:19.226600 End time: 2026-06-03 09:05:22.275121 2026-06-03 09:05:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:05:22 INFO phaseshift::::casa ########################################## 2026-06-03 09:05:22 INFO tclean::::casa ########################################## 2026-06-03 09:05:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:05:22 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:05:22 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:05:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:05:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:05:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:05:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:05:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:05:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:05:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:05:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:05:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:05:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:05:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:05:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:05:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026671 2026-06-03 09:05:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:05:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:05:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:05:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:05:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:05:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:05:27 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:05:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:05:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:05:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:05:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:05:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:05:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:05:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:05:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:05:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:05:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:05:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374443277716637, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:05:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:05:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:05:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:05:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:05:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852561634033918, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:05:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:05:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:05:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:05:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:05:31 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:05:31 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:05:31 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:05:31 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:05:32 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:05:33 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:05:22.328296 End time: 2026-06-03 09:05:32.508879 2026-06-03 09:05:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:05:33 INFO tclean::::casa ########################################## 2026-06-03 09:05:33 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:05:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:05:33 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:05:33 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:05:33 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:05:33 2026****** 2026-06-03 09:05:33 INFO ImageFitter::fit+ 2026-06-03 09:05:33 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:05:33 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:05:33 INFO ImageFitter::fit+ --- region: 2026-06-03 09:05:33 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:05:33 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:05:33 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:05:33 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:05:33 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:05:33 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:05:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:05:33 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:05:33 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:05:33 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:05:33 INFO imstat::::casa ########################################## 2026-06-03 09:05:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:05:33 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:05:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:05:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:05:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:05:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:05:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:05:33 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:05:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:05:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:05:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:05:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:05:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:05:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:05:33 INFO imstat:::: Values --- 2026-06-03 09:05:33 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:05:33 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:05:33 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:05:33 INFO imstat:::: -- minimum value [min]: -7.77898e-05 Jy/beam 2026-06-03 09:05:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:05:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:05:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:05:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-06-03 09:05:33 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:05:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:05:33 INFO imstat:::: Statistics --- 2026-06-03 09:05:33 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:05:33 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:05:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:05:33 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:05:33 INFO imstat:::: -- Median of the pixel values [median]: -1.86769e-05 Jy/beam 2026-06-03 09:05:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73662e-05 Jy/beam 2026-06-03 09:05:33 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-06-03 09:05:33 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-06-03 09:05:33 INFO imstat:::: -- Third quartile [q3]: 1.1187e-06 Jy/beam 2026-06-03 09:05:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:05:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:05:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:05:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:05:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:05:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:05:33 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 2026-06-03 09:05:33 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:05:32.586899 End time: 2026-06-03 09:05:32.612807 2026-06-03 09:05:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:05:33 INFO imstat::::casa ########################################## 2026-06-03 09:05:33 INFO phaseshift::::casa ########################################## 2026-06-03 09:05:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:05:33 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 +006d21m09.7433' ) 2026-06-03 09:05:33 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:05:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:05:33 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:05:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:05:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:05:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:05:33 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:05:33 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:05:33 INFO MSTransformManager::open Select data 2026-06-03 09:05:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:05:36 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:05:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 +006d21m09.7433' successfully parsed 2026-06-03 09:05:36 INFO phaseshift::::casa Shift phase center 2026-06-03 09:05:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:05:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:05:32.630016 End time: 2026-06-03 09:05:36.692780 2026-06-03 09:05:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:05:37 INFO phaseshift::::casa ########################################## 2026-06-03 09:05:37 INFO tclean::::casa ########################################## 2026-06-03 09:05:37 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:05:37 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:05:37 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:05:37 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:05:37 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:05:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:05:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:05:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:05:37 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:05:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:05:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:05:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:05:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:05:37 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:05:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:05:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.016729 2026-06-03 09:05:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:05:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:05:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:05:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:05:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:05:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:05:40 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:05:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:05:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:05:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:05:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:05:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:05:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:05:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:05:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:05:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:05:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:05:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:05:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:05:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:05:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:05:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:05:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:05:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:05:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:05:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:05:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:05:44 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:05:44 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:05:44 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:05:44 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:05:45 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:05:45 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:05:36.748531 End time: 2026-06-03 09:05:45.410656 2026-06-03 09:05:45 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:05:45 INFO tclean::::casa ########################################## 2026-06-03 09:05:45 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:05:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:05:45 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:05:45 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:05:45 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:05:45 2026****** 2026-06-03 09:05:45 INFO ImageFitter::fit+ 2026-06-03 09:05:45 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:05:45 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:05:45 INFO ImageFitter::fit+ --- region: 2026-06-03 09:05:45 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:05:45 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:05:45 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:05:45 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:05:45 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:05:45 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:05:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:05:45 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:05:45 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:05:45 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:05:45 INFO imstat::::casa ########################################## 2026-06-03 09:05:45 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:05:45 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:05:45 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:05:45 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:05:45 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:05:45 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:05:45 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:05:45 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:05:45 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:05:45 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:05:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:05:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:05:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:05:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:05:46 INFO imstat:::: Values --- 2026-06-03 09:05:46 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:05:46 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:05:46 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:05:46 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-06-03 09:05:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:05:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:05:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:05:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:05:46 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:05:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:05:46 INFO imstat:::: Statistics --- 2026-06-03 09:05:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:05:46 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:05:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:05:46 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:05:46 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-06-03 09:05:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-06-03 09:05:46 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-06-03 09:05:46 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-06-03 09:05:46 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-06-03 09:05:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:05:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:05:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:05:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:05:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:05:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:05:46 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 2026-06-03 09:05:46 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:05:45.477314 End time: 2026-06-03 09:05:45.515297 2026-06-03 09:05:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:05:46 INFO imstat::::casa ########################################## 2026-06-03 09:05:46 INFO phaseshift::::casa ########################################## 2026-06-03 09:05:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:05:46 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 00:25:24.6496' ) 2026-06-03 09:05:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:05:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:05:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:05:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:05:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:05:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:05:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:05:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:05:46 INFO MSTransformManager::open Select data 2026-06-03 09:05:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:05:47 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 ".". 2026-06-03 09:05:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 00:25:24.6496' successfully parsed 2026-06-03 09:05:47 INFO phaseshift::::casa Shift phase center 2026-06-03 09:05:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:05:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:05:45.534983 End time: 2026-06-03 09:05:48.022671 2026-06-03 09:05:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:05:48 INFO phaseshift::::casa ########################################## 2026-06-03 09:05:48 INFO tclean::::casa ########################################## 2026-06-03 09:05:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:05:48 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:05:48 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:05:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:05:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:05:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:05:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:05:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:05:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:05:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:05:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:05:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:05:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:05:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:05:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:05:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027109 2026-06-03 09:05:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:05:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:05:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:05:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:05:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:05:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:05:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:05:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:05:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:05:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:05:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:05:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:05:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:05:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:05:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:05:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:05:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:05:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:05:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:05:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:05:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:05:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:05:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:05:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:05:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:05:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:05:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:05:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:05:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:05:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:05:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:05:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:05:58 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:06:01 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:05:48.075266 End time: 2026-06-03 09:06:00.912956 2026-06-03 09:06:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:06:01 INFO tclean::::casa ########################################## 2026-06-03 09:06:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:06:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:01 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) 2026-06-03 09:06:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:06:01 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:06:01 2026****** 2026-06-03 09:06:01 INFO ImageFitter::fit+ 2026-06-03 09:06:01 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:06:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:06:01 INFO ImageFitter::fit+ --- region: 2026-06-03 09:06:01 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:06:01 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:06:01 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:06:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:06:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:06:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:06:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:01 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) 2026-06-03 09:06:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:06:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:06:01 INFO imstat::::casa ########################################## 2026-06-03 09:06:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:06:01 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 ) 2026-06-03 09:06:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:06:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:06:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:06:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:06:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:01 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) 2026-06-03 09:06:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:06:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:06:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:06:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:06:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-06-03 09:06:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-06-03 09:06:01 INFO imstat:::: Values --- 2026-06-03 09:06:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:06:01 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:06:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:06:01 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-06-03 09:06:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:06:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:06:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:06:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:06:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:06:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:06:01 INFO imstat:::: Statistics --- 2026-06-03 09:06:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:06:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:06:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:06:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:06:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-06-03 09:06:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-06-03 09:06:01 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-06-03 09:06:01 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-06-03 09:06:01 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-06-03 09:06:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:06:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:06:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:06:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:06:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:06:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:06:01 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 2026-06-03 09:06:01 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:06:00.994546 End time: 2026-06-03 09:06:01.028020 2026-06-03 09:06:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:06:01 INFO imstat::::casa ########################################## 2026-06-03 09:06:01 INFO phaseshift::::casa ########################################## 2026-06-03 09:06:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:06:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 6.352706472deg' ) 2026-06-03 09:06:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:06:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:06:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:06:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:06:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:06:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:06:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:06:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:06:01 INFO MSTransformManager::open Select data 2026-06-03 09:06:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:06:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:06:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 6.352706472deg' successfully parsed 2026-06-03 09:06:03 INFO phaseshift::::casa Shift phase center 2026-06-03 09:06:04 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:06:04 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:06:01.052604 End time: 2026-06-03 09:06:04.286036 2026-06-03 09:06:04 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:06:04 INFO phaseshift::::casa ########################################## 2026-06-03 09:06:04 INFO tclean::::casa ########################################## 2026-06-03 09:06:04 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:06:04 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:06:04 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:06:04 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:06:04 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:06:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:06:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:06:04 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:06:04 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:06:04 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:06:04 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:06:04 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:06:04 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:06:04 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:06:06 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:06:06 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026874 2026-06-03 09:06:06 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:06:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:06:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:06:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:06:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:06:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:06:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:06:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:06:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:06:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:06:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:06:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:06:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:06:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:06:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:06:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:06:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:06:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:06:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:06:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:06:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:06:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:06:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:06:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:06:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:06:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:06:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:06:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:06:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:06:13 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:06:13 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:06:13 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:06:14 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:06:04.327793 End time: 2026-06-03 09:06:14.249895 2026-06-03 09:06:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:06:14 INFO tclean::::casa ########################################## 2026-06-03 09:06:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:06:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:14 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) 2026-06-03 09:06:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:06:14 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:06:14 2026****** 2026-06-03 09:06:14 INFO ImageFitter::fit+ 2026-06-03 09:06:14 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:06:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:06:14 INFO ImageFitter::fit+ --- region: 2026-06-03 09:06:14 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:06:14 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:06:14 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:06:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:06:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:06:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:06:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:14 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) 2026-06-03 09:06:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:06:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:06:14 INFO imstat::::casa ########################################## 2026-06-03 09:06:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:06:14 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 ) 2026-06-03 09:06:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:06:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:06:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:06:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:06:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:14 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) 2026-06-03 09:06:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:06:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:06:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:06:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:06:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:06:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:06:14 INFO imstat:::: Values --- 2026-06-03 09:06:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:06:14 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:06:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:06:14 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-06-03 09:06:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:06:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:06:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:06:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:06:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:06:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:06:14 INFO imstat:::: Statistics --- 2026-06-03 09:06:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:06:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:06:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:06:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:06:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-06-03 09:06:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-06-03 09:06:14 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-06-03 09:06:14 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-06-03 09:06:14 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-06-03 09:06:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:06:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:06:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:06:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:06:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:06:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:06:14 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 2026-06-03 09:06:14 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:06:14.334349 End time: 2026-06-03 09:06:14.363713 2026-06-03 09:06:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:06:14 INFO imstat::::casa ########################################## 2026-06-03 09:06:14 INFO phaseshift::::casa ########################################## 2026-06-03 09:06:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:06:14 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 0.110875644rad' ) 2026-06-03 09:06:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:06:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:06:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:06:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:06:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:06:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:06:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:06:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:06:14 INFO MSTransformManager::open Select data 2026-06-03 09:06:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:06:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:06:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 0.110875644rad' successfully parsed 2026-06-03 09:06:16 INFO phaseshift::::casa Shift phase center 2026-06-03 09:06:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:06:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:06:14.410540 End time: 2026-06-03 09:06:16.351131 2026-06-03 09:06:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:06:16 INFO phaseshift::::casa ########################################## 2026-06-03 09:06:16 INFO tclean::::casa ########################################## 2026-06-03 09:06:16 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:06:16 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:06:16 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:06:16 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:06:16 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:06:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:06:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:06:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:06:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:06:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:06:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:06:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:06:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:06:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:06:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:06:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025798 2026-06-03 09:06:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:06:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:06:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:06:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:06:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:06:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:06:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:06:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:06:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:06:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:06:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:06:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:06:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:06:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:06:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:06:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:06:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:06:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:06:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:06:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:06:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:06:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:06:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:06:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:06:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:06:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:06:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:06:23 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:06:23 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:06:23 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:06:23 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:06:24 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:06:25 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:06:16.403893 End time: 2026-06-03 09:06:24.829734 2026-06-03 09:06:25 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:06:25 INFO tclean::::casa ########################################## 2026-06-03 09:06:25 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:06:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:25 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) 2026-06-03 09:06:25 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:06:25 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:06:25 2026****** 2026-06-03 09:06:25 INFO ImageFitter::fit+ 2026-06-03 09:06:25 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:06:25 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:06:25 INFO ImageFitter::fit+ --- region: 2026-06-03 09:06:25 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:06:25 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:06:25 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:06:25 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:06:25 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:06:25 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:06:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:25 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) 2026-06-03 09:06:25 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:06:25 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:06:25 INFO imstat::::casa ########################################## 2026-06-03 09:06:25 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:06:25 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 ) 2026-06-03 09:06:25 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:06:25 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:06:25 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:06:25 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:06:25 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:25 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) 2026-06-03 09:06:25 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:06:25 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:06:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:06:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:06:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:06:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:06:25 INFO imstat:::: Values --- 2026-06-03 09:06:25 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:06:25 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:06:25 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:06:25 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-06-03 09:06:25 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:06:25 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 09:06:25 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:06:25 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-06-03 09:06:25 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:06:25 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:06:25 INFO imstat:::: Statistics --- 2026-06-03 09:06:25 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:06:25 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:06:25 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:06:25 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:06:25 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-06-03 09:06:25 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-06-03 09:06:25 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-06-03 09:06:25 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-06-03 09:06:25 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-06-03 09:06:25 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:06:25 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:06:25 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:06:25 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:06:25 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:06:25 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:06:25 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 2026-06-03 09:06:25 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:06:24.910312 End time: 2026-06-03 09:06:24.948206 2026-06-03 09:06:25 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:06:25 INFO imstat::::casa ########################################## 2026-06-03 09:06:25 INFO phaseshift::::casa ########################################## 2026-06-03 09:06:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:06:25 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 +006d21m09.7433' ) 2026-06-03 09:06:25 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:06:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:06:25 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:06:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:06:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:06:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:06:25 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:06:25 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:06:25 INFO MSTransformManager::open Select data 2026-06-03 09:06:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:06:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:06:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 +006d21m09.7433' successfully parsed 2026-06-03 09:06:29 INFO phaseshift::::casa Shift phase center 2026-06-03 09:06:29 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:06:29 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:06:24.973418 End time: 2026-06-03 09:06:29.283315 2026-06-03 09:06:29 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:06:29 INFO phaseshift::::casa ########################################## 2026-06-03 09:06:29 INFO tclean::::casa ########################################## 2026-06-03 09:06:29 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:06:29 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:06:29 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:06:29 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:06:29 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:06:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:06:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:06:29 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:06:29 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:06:29 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:06:29 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:06:29 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:06:29 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:06:29 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:06:30 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:06:30 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028701 2026-06-03 09:06:30 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:06:30 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:06:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:06:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:06:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:06:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:06:33 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:06:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:06:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:06:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:06:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:06:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:06:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:06:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:06:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:06:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:06:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:06:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:06:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:06:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:06:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:06:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:06:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:06:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:06:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:06:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:06:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:06:38 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:06:38 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:06:38 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:06:38 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:06:38 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:06:40 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:06:29.324573 End time: 2026-06-03 09:06:39.539953 2026-06-03 09:06:40 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:06:40 INFO tclean::::casa ########################################## 2026-06-03 09:06:40 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:06:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:40 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) 2026-06-03 09:06:40 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:06:40 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:06:40 2026****** 2026-06-03 09:06:40 INFO ImageFitter::fit+ 2026-06-03 09:06:40 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:06:40 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:06:40 INFO ImageFitter::fit+ --- region: 2026-06-03 09:06:40 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:06:40 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:06:40 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:06:40 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:06:40 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:06:40 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:06:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:40 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) 2026-06-03 09:06:40 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:06:40 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:06:40 INFO imstat::::casa ########################################## 2026-06-03 09:06:40 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:06:40 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 ) 2026-06-03 09:06:40 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:06:40 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:06:40 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:06:40 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:06:40 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:40 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) 2026-06-03 09:06:40 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:06:40 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:06:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:06:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:06:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:06:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:06:40 INFO imstat:::: Values --- 2026-06-03 09:06:40 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:06:40 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:06:40 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:06:40 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-06-03 09:06:40 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:06:40 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:06:40 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:06:40 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:06:40 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:06:40 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:06:40 INFO imstat:::: Statistics --- 2026-06-03 09:06:40 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:06:40 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:06:40 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:06:40 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:06:40 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-06-03 09:06:40 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-06-03 09:06:40 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-06-03 09:06:40 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-06-03 09:06:40 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-06-03 09:06:40 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:06:40 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:06:40 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:06:40 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:06:40 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:06:40 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:06:40 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 2026-06-03 09:06:40 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:06:39.609813 End time: 2026-06-03 09:06:39.645864 2026-06-03 09:06:40 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:06:40 INFO imstat::::casa ########################################## 2026-06-03 09:06:40 INFO phaseshift::::casa ########################################## 2026-06-03 09:06:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:06:40 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 00:25:24.6496' ) 2026-06-03 09:06:40 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:06:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:06:40 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:06:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:06:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:06:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:06:40 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:06:40 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:06:40 INFO MSTransformManager::open Select data 2026-06-03 09:06:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:06:42 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 ".". 2026-06-03 09:06:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 00:25:24.6496' successfully parsed 2026-06-03 09:06:42 INFO phaseshift::::casa Shift phase center 2026-06-03 09:06:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:06:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:06:39.668044 End time: 2026-06-03 09:06:43.291924 2026-06-03 09:06:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:06:43 INFO phaseshift::::casa ########################################## 2026-06-03 09:06:43 INFO tclean::::casa ########################################## 2026-06-03 09:06:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:06:43 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:06:43 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:06:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:06:43 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:06:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:06:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:06:44 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:06:44 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:06:44 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:06:44 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:06:44 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:06:44 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:06:44 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:06:45 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:06:45 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026528 2026-06-03 09:06:45 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:06:45 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:06:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:06:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:06:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:06:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:06:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:06:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:06:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:06:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:06:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:06:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:06:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:06:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:06:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:06:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:06:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:06:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:06:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:06:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:06:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:06:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:06:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:06:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:06:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:06:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:06:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:06:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:06:53 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:06:53 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:06:53 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:06:54 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:06:54 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:06:55 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:06:43.347592 End time: 2026-06-03 09:06:55.185528 2026-06-03 09:06:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:06:55 INFO tclean::::casa ########################################## 2026-06-03 09:06:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:06:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:55 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) 2026-06-03 09:06:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:06:55 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:06:55 2026****** 2026-06-03 09:06:55 INFO ImageFitter::fit+ 2026-06-03 09:06:55 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:06:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:06:55 INFO ImageFitter::fit+ --- region: 2026-06-03 09:06:55 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:06:55 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:06:55 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:06:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:06:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:06:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:06:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:55 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) 2026-06-03 09:06:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:06:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:06:55 INFO imstat::::casa ########################################## 2026-06-03 09:06:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:06:55 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 ) 2026-06-03 09:06:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:06:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:06:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:06:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:06:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:06:55 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) 2026-06-03 09:06:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:06:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:06:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:06:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:06:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-06-03 09:06:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-06-03 09:06:55 INFO imstat:::: Values --- 2026-06-03 09:06:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:06:55 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:06:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:06:55 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-06-03 09:06:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:06:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:06:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:06:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:06:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:06:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:06:55 INFO imstat:::: Statistics --- 2026-06-03 09:06:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:06:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:06:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:06:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:06:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-06-03 09:06:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-06-03 09:06:55 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-06-03 09:06:55 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-06-03 09:06:55 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-06-03 09:06:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:06:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:06:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:06:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:06:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:06:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:06:55 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 2026-06-03 09:06:55 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:06:55.228787 End time: 2026-06-03 09:06:55.247801 2026-06-03 09:06:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:06:55 INFO imstat::::casa ########################################## 2026-06-03 09:06:55 INFO phaseshift::::casa ########################################## 2026-06-03 09:06:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:06:55 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 05:00:21.5326 6.352706472deg' ) 2026-06-03 09:06:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:06:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:06:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:06:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:06:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:06:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:06:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:06:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:06:55 INFO MSTransformManager::open Select data 2026-06-03 09:06:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:06:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:06:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 6.352706472deg' successfully parsed 2026-06-03 09:06:57 INFO phaseshift::::casa Shift phase center 2026-06-03 09:06:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:06:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:06:55.259857 End time: 2026-06-03 09:06:57.254159 2026-06-03 09:06:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:06:57 INFO phaseshift::::casa ########################################## 2026-06-03 09:06:57 INFO tclean::::casa ########################################## 2026-06-03 09:06:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:06:57 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:06:57 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:06:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:06:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:06:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:06:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:06:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:06:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:06:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:06:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:06:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:06:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:06:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:06:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:06:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024728 2026-06-03 09:06:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:06:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:06:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:07:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:07:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:07:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:07:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:07:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:07:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:07:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:07:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:07:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:07:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:07:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:07:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:07:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:07:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:07:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:07:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:07:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:07:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:07:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:07:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:07:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:07:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:07:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:07:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:07:06 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:07:06 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:07:06 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:07:07 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:07:07 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:07:08 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:06:57.299802 End time: 2026-06-03 09:07:08.052483 2026-06-03 09:07:08 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:07:08 INFO tclean::::casa ########################################## 2026-06-03 09:07:08 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:07:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:07:08 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) 2026-06-03 09:07:08 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:07:08 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:07:08 2026****** 2026-06-03 09:07:08 INFO ImageFitter::fit+ 2026-06-03 09:07:08 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:07:08 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:07:08 INFO ImageFitter::fit+ --- region: 2026-06-03 09:07:08 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:07:08 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:07:08 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:07:08 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:07:08 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:07:08 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:07:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:07:08 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) 2026-06-03 09:07:08 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:07:08 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:07:08 INFO imstat::::casa ########################################## 2026-06-03 09:07:08 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:07:08 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 ) 2026-06-03 09:07:08 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:07:08 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:07:08 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:07:08 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:07:08 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:07:08 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) 2026-06-03 09:07:08 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:07:08 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:07:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:07:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:07:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:07:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:07:08 INFO imstat:::: Values --- 2026-06-03 09:07:08 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:07:08 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:07:08 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:07:08 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-06-03 09:07:08 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:07:08 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:07:08 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:07:08 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:07:08 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:07:08 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:07:08 INFO imstat:::: Statistics --- 2026-06-03 09:07:08 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:07:08 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:07:08 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:07:08 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:07:08 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-06-03 09:07:08 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-06-03 09:07:08 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-06-03 09:07:08 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-06-03 09:07:08 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-06-03 09:07:08 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:07:08 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:07:08 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:07:08 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:07:08 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:07:08 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:07:08 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 2026-06-03 09:07:08 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:07:08.131235 End time: 2026-06-03 09:07:08.158377 2026-06-03 09:07:08 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:07:08 INFO imstat::::casa ########################################## 2026-06-03 09:07:08 INFO phaseshift::::casa ########################################## 2026-06-03 09:07:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:07:08 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 0.110875644rad' ) 2026-06-03 09:07:08 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:07:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:07:08 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:07:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:07:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:07:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:07:08 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:07:08 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:07:08 INFO MSTransformManager::open Select data 2026-06-03 09:07:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:07:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:07:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 0.110875644rad' successfully parsed 2026-06-03 09:07:10 INFO phaseshift::::casa Shift phase center 2026-06-03 09:07:11 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:07:11 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:07:08.175467 End time: 2026-06-03 09:07:10.810602 2026-06-03 09:07:11 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:07:11 INFO phaseshift::::casa ########################################## 2026-06-03 09:07:11 INFO tclean::::casa ########################################## 2026-06-03 09:07:11 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:07:11 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:07:11 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:07:11 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:07:11 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:07:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:07:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:07:11 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:07:11 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:07:11 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:07:11 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:07:11 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:07:11 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:07:11 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:07:12 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:07:12 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025139 2026-06-03 09:07:12 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:07:12 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:07:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:07:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:07:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:07:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:07:14 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:07:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:07:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:07:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:07:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:07:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:07:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:07:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:07:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:07:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:07:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:07:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:07:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:07:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:07:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:07:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:07:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:07:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:07:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:07:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:07:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:07:18 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:07:18 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:07:18 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:07:20 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:07:20 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:07:22 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:07:10.859939 End time: 2026-06-03 09:07:22.106869 2026-06-03 09:07:22 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:07:22 INFO tclean::::casa ########################################## 2026-06-03 09:07:22 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:07:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:07:22 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:07:22 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:07:22 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:07:22 2026****** 2026-06-03 09:07:22 INFO ImageFitter::fit+ 2026-06-03 09:07:22 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:07:22 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:07:22 INFO ImageFitter::fit+ --- region: 2026-06-03 09:07:22 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:07:22 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:07:22 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:07:22 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:07:22 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:07:22 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:07:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:07:22 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:07:22 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:07:22 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:07:22 INFO imstat::::casa ########################################## 2026-06-03 09:07:22 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:07:22 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:07:22 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:07:22 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:07:22 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:07:22 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:07:22 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:07:22 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:07:22 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:07:22 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:07:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:07:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:07:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:07:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:07:22 INFO imstat:::: Values --- 2026-06-03 09:07:22 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:07:22 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:07:22 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:07:22 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-06-03 09:07:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:07:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 09:07:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:07:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-06-03 09:07:22 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:07:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:07:22 INFO imstat:::: Statistics --- 2026-06-03 09:07:22 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:07:22 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:07:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:07:22 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:07:22 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-06-03 09:07:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-06-03 09:07:22 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-06-03 09:07:22 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-06-03 09:07:22 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-06-03 09:07:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:07:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:07:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:07:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:07:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:07:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:07:22 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 2026-06-03 09:07:22 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:07:22.191388 End time: 2026-06-03 09:07:22.222847 2026-06-03 09:07:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:07:22 INFO imstat::::casa ########################################## 2026-06-03 09:07:22 INFO phaseshift::::casa ########################################## 2026-06-03 09:07:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:07:22 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg +006d21m09.7433' ) 2026-06-03 09:07:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:07:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:07:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:07:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:07:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:07:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:07:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:07:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:07:22 INFO MSTransformManager::open Select data 2026-06-03 09:07:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:07:25 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:07:25 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg +006d21m09.7433' successfully parsed 2026-06-03 09:07:25 INFO phaseshift::::casa Shift phase center 2026-06-03 09:07:26 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:07:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:07:22.245551 End time: 2026-06-03 09:07:25.836422 2026-06-03 09:07:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:07:26 INFO phaseshift::::casa ########################################## 2026-06-03 09:07:26 INFO tclean::::casa ########################################## 2026-06-03 09:07:26 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:07:26 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:07:26 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:07:26 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:07:26 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:07:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:07:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:07:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:07:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:07:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:07:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:07:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:07:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:07:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:07:27 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:07:27 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025629 2026-06-03 09:07:27 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:07:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:07:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:07:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:07:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:07:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:07:28 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:07:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:07:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:07:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:07:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:07:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:07:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:07:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:07:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:07:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:07:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:07:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:07:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:07:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:07:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:07:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:07:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:07:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:07:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:07:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:07:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:07:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:07:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:07:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:07:33 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:07:34 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:07:34 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:07:25.885699 End time: 2026-06-03 09:07:34.412176 2026-06-03 09:07:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:07:34 INFO tclean::::casa ########################################## 2026-06-03 09:07:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:07:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:07:34 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) 2026-06-03 09:07:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:07:34 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:07:34 2026****** 2026-06-03 09:07:34 INFO ImageFitter::fit+ 2026-06-03 09:07:34 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:07:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:07:34 INFO ImageFitter::fit+ --- region: 2026-06-03 09:07:34 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:07:34 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:07:34 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:07:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:07:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:07:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:07:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:07:34 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) 2026-06-03 09:07:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116867 Jy 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126483 Jy 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:07:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:07:34 INFO imstat::::casa ########################################## 2026-06-03 09:07:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:07:34 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 ) 2026-06-03 09:07:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:07:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:07:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:07:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:07:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:07:34 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) 2026-06-03 09:07:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:07:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:07:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:07:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:07:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:07:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:07:34 INFO imstat:::: Values --- 2026-06-03 09:07:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:07:34 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:07:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:07:34 INFO imstat:::: -- minimum value [min]: -7.77768e-05 Jy/beam 2026-06-03 09:07:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:07:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:07:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:07:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:07:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:07:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:07:34 INFO imstat:::: Statistics --- 2026-06-03 09:07:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:07:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:07:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:07:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:07:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-06-03 09:07:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73609e-05 Jy/beam 2026-06-03 09:07:34 INFO imstat:::: -- IQR [quartile]: 3.56013e-05 Jy/beam 2026-06-03 09:07:34 INFO imstat:::: -- First quartile [q1]: -3.4507e-05 Jy/beam 2026-06-03 09:07:34 INFO imstat:::: -- Third quartile [q3]: 1.09435e-06 Jy/beam 2026-06-03 09:07:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:07:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:07:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:07:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:07:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:07:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:07:34 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 2026-06-03 09:07:34 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:07:34.469119 End time: 2026-06-03 09:07:34.491678 2026-06-03 09:07:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:07:34 INFO imstat::::casa ########################################## 2026-06-03 09:07:35 INFO phaseshift::::casa ########################################## 2026-06-03 09:07:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:07:35 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 00:25:24.6496' ) 2026-06-03 09:07:35 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:07:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:07:35 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:07:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:07:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:07:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:07:35 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:07:35 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:07:35 INFO MSTransformManager::open Select data 2026-06-03 09:07:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:07:36 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 ".". 2026-06-03 09:07:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 00:25:24.6496' successfully parsed 2026-06-03 09:07:36 INFO phaseshift::::casa Shift phase center 2026-06-03 09:07:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:07:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:07:34.506233 End time: 2026-06-03 09:07:36.676990 2026-06-03 09:07:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:07:37 INFO phaseshift::::casa ########################################## 2026-06-03 09:07:37 INFO tclean::::casa ########################################## 2026-06-03 09:07:37 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:07:37 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:07:37 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:07:37 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:07:37 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:07:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:07:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:07:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:07:37 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:07:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:07:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:07:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:07:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:07:37 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:07:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:07:40 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026775 2026-06-03 09:07:40 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:07:40 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:07:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:07:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:07:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:07:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:07:42 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:07:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:07:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:07:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:07:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:07:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:07:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:07:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:07:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:07:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:07:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:07:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:07:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:07:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:07:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:07:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:07:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:07:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:07:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:07:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:07:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:07:48 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:07:48 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:07:48 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:07:49 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:07:49 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:07:51 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:07:36.733080 End time: 2026-06-03 09:07:51.296281 2026-06-03 09:07:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:07:51 INFO tclean::::casa ########################################## 2026-06-03 09:07:51 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:07:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:07:51 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) 2026-06-03 09:07:51 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:07:51 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:07:51 2026****** 2026-06-03 09:07:51 INFO ImageFitter::fit+ 2026-06-03 09:07:51 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:07:51 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:07:51 INFO ImageFitter::fit+ --- region: 2026-06-03 09:07:51 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:07:51 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:07:51 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:07:51 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:07:51 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:07:51 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:07:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:07:51 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) 2026-06-03 09:07:51 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116903 Jy 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126517 Jy 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:07:51 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:07:51 INFO imstat::::casa ########################################## 2026-06-03 09:07:51 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:07:51 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 ) 2026-06-03 09:07:51 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:07:51 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:07:51 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:07:51 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:07:51 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:07:51 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) 2026-06-03 09:07:51 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:07:51 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:07:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:07:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:07:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-06-03 09:07:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-06-03 09:07:51 INFO imstat:::: Values --- 2026-06-03 09:07:51 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:07:51 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:07:51 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:07:51 INFO imstat:::: -- minimum value [min]: -7.78731e-05 Jy/beam 2026-06-03 09:07:51 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:07:51 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:07:51 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:07:51 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:07:51 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:07:51 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:07:51 INFO imstat:::: Statistics --- 2026-06-03 09:07:51 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:07:51 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:07:51 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:07:51 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:07:51 INFO imstat:::: -- Median of the pixel values [median]: -1.86503e-05 Jy/beam 2026-06-03 09:07:51 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73798e-05 Jy/beam 2026-06-03 09:07:51 INFO imstat:::: -- IQR [quartile]: 3.56966e-05 Jy/beam 2026-06-03 09:07:51 INFO imstat:::: -- First quartile [q1]: -3.45352e-05 Jy/beam 2026-06-03 09:07:51 INFO imstat:::: -- Third quartile [q3]: 1.16146e-06 Jy/beam 2026-06-03 09:07:51 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:07:51 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:07:51 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:07:51 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:07:51 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:07:51 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:07:51 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 2026-06-03 09:07:51 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:07:51.369818 End time: 2026-06-03 09:07:51.407938 2026-06-03 09:07:51 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:07:51 INFO imstat::::casa ########################################## 2026-06-03 09:07:51 INFO phaseshift::::casa ########################################## 2026-06-03 09:07:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:07:51 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 6.352706472deg' ) 2026-06-03 09:07:51 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:07:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:07:51 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:07:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:07:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:07:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:07:51 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:07:51 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:07:51 INFO MSTransformManager::open Select data 2026-06-03 09:07:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:07:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:07:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 6.352706472deg' successfully parsed 2026-06-03 09:07:54 INFO phaseshift::::casa Shift phase center 2026-06-03 09:07:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:07:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:07:51.423435 End time: 2026-06-03 09:07:55.025418 2026-06-03 09:07:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:07:55 INFO phaseshift::::casa ########################################## 2026-06-03 09:07:55 INFO tclean::::casa ########################################## 2026-06-03 09:07:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:07:55 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:07:55 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:07:55 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:07:55 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:07:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:07:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:07:55 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:07:55 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:07:55 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:07:55 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:07:55 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:07:55 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:07:55 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:07:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:07:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026757 2026-06-03 09:07:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:07:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:07:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:07:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:07:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:07:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:07:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:07:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:07:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:07:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:07:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:07:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:08:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:08:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:08:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:08:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:08:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:08:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:08:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:08:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:08:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:08:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:08:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:08:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:08:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:08:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:08:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:08:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:08:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:08:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:08:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:08:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:08:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:08:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:08:09 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:08:09 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:08:10 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:07:55.085987 End time: 2026-06-03 09:08:10.262315 2026-06-03 09:08:10 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:08:10 INFO tclean::::casa ########################################## 2026-06-03 09:08:10 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:08:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:08:10 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) 2026-06-03 09:08:10 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:08:10 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:08:10 2026****** 2026-06-03 09:08:10 INFO ImageFitter::fit+ 2026-06-03 09:08:10 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:08:10 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:08:10 INFO ImageFitter::fit+ --- region: 2026-06-03 09:08:10 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:08:10 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:08:10 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:08:10 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:08:10 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:08:10 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:08:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:08:10 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) 2026-06-03 09:08:10 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011687 Jy 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:08:10 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:08:10 INFO imstat::::casa ########################################## 2026-06-03 09:08:10 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:08:10 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 ) 2026-06-03 09:08:10 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:08:10 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:08:10 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:08:10 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:08:10 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:08:10 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) 2026-06-03 09:08:10 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:08:10 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:08:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:08:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:08:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:08:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:08:10 INFO imstat:::: Values --- 2026-06-03 09:08:10 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:08:10 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:08:10 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:08:10 INFO imstat:::: -- minimum value [min]: -7.77771e-05 Jy/beam 2026-06-03 09:08:10 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:08:10 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:08:10 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:08:10 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:08:10 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:08:10 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:08:10 INFO imstat:::: Statistics --- 2026-06-03 09:08:10 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:08:10 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:08:10 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:08:10 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:08:10 INFO imstat:::: -- Median of the pixel values [median]: -1.86715e-05 Jy/beam 2026-06-03 09:08:10 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73619e-05 Jy/beam 2026-06-03 09:08:10 INFO imstat:::: -- IQR [quartile]: 3.56021e-05 Jy/beam 2026-06-03 09:08:10 INFO imstat:::: -- First quartile [q1]: -3.45061e-05 Jy/beam 2026-06-03 09:08:10 INFO imstat:::: -- Third quartile [q3]: 1.09605e-06 Jy/beam 2026-06-03 09:08:10 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:08:10 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:08:10 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:08:10 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:08:10 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:08:10 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:08:10 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 2026-06-03 09:08:10 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:08:10.335380 End time: 2026-06-03 09:08:10.368618 2026-06-03 09:08:10 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:08:10 INFO imstat::::casa ########################################## 2026-06-03 09:08:10 INFO phaseshift::::casa ########################################## 2026-06-03 09:08:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:08:10 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 0.110875644rad' ) 2026-06-03 09:08:10 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:08:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:08:10 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:08:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:08:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:08:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:08:10 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:08:10 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:08:10 INFO MSTransformManager::open Select data 2026-06-03 09:08:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:08:15 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:08:15 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 0.110875644rad' successfully parsed 2026-06-03 09:08:15 INFO phaseshift::::casa Shift phase center 2026-06-03 09:08:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:08:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:08:10.383529 End time: 2026-06-03 09:08:16.102175 2026-06-03 09:08:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:08:16 INFO phaseshift::::casa ########################################## 2026-06-03 09:08:16 INFO tclean::::casa ########################################## 2026-06-03 09:08:16 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:08:16 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:08:16 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:08:16 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:08:16 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:08:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:08:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:08:16 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:08:16 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:08:16 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:08:16 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:08:16 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:08:16 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:08:16 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:08:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:08:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027016 2026-06-03 09:08:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:08:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:08:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:08:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:08:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:08:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:08:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:08:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:08:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:08:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:08:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:08:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:08:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:08:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:08:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:08:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:08:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:08:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:08:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:08:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:08:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:08:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:08:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:08:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:08:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:08:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:08:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:08:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:08:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:08:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:08:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:08:30 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:08:30 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:08:30 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:08:30 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:08:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:08:33 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:08:16.163967 End time: 2026-06-03 09:08:32.637532 2026-06-03 09:08:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:08:33 INFO tclean::::casa ########################################## 2026-06-03 09:08:33 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:08:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:08:33 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:08:33 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:08:33 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:08:33 2026****** 2026-06-03 09:08:33 INFO ImageFitter::fit+ 2026-06-03 09:08:33 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:08:33 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:08:33 INFO ImageFitter::fit+ --- region: 2026-06-03 09:08:33 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:08:33 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:08:33 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:08:33 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:08:33 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:08:33 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:08:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:08:33 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:08:33 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126482 Jy 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:08:33 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:08:33 INFO imstat::::casa ########################################## 2026-06-03 09:08:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:08:33 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:08:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:08:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:08:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:08:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:08:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:08:33 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:08:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:08:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:08:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:08:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:08:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:08:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:08:33 INFO imstat:::: Values --- 2026-06-03 09:08:33 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:08:33 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:08:33 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:08:33 INFO imstat:::: -- minimum value [min]: -7.77855e-05 Jy/beam 2026-06-03 09:08:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:08:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 09:08:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:08:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-06-03 09:08:33 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:08:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:08:33 INFO imstat:::: Statistics --- 2026-06-03 09:08:33 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:08:33 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:08:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:08:33 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:08:33 INFO imstat:::: -- Median of the pixel values [median]: -1.86732e-05 Jy/beam 2026-06-03 09:08:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73562e-05 Jy/beam 2026-06-03 09:08:33 INFO imstat:::: -- IQR [quartile]: 3.56008e-05 Jy/beam 2026-06-03 09:08:33 INFO imstat:::: -- First quartile [q1]: -3.45107e-05 Jy/beam 2026-06-03 09:08:33 INFO imstat:::: -- Third quartile [q3]: 1.09015e-06 Jy/beam 2026-06-03 09:08:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:08:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:08:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:08:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:08:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:08:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:08:33 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 2026-06-03 09:08:33 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:08:32.715808 End time: 2026-06-03 09:08:32.749389 2026-06-03 09:08:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:08:33 INFO imstat::::casa ########################################## 2026-06-03 09:08:33 INFO phaseshift::::casa ########################################## 2026-06-03 09:08:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:08:33 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad +006d21m09.7433' ) 2026-06-03 09:08:33 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:08:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:08:33 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:08:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:08:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:08:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:08:33 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:08:33 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:08:33 INFO MSTransformManager::open Select data 2026-06-03 09:08:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:08:36 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:08:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad +006d21m09.7433' successfully parsed 2026-06-03 09:08:36 INFO phaseshift::::casa Shift phase center 2026-06-03 09:08:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:08:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:08:32.765600 End time: 2026-06-03 09:08:36.908627 2026-06-03 09:08:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:08:37 INFO phaseshift::::casa ########################################## 2026-06-03 09:08:37 INFO tclean::::casa ########################################## 2026-06-03 09:08:37 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:08:37 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:08:37 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:08:37 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:08:37 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:08:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:08:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:08:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:08:37 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:08:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:08:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:08:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:08:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:08:37 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:08:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:08:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023202 2026-06-03 09:08:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:08:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:08:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:08:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:08:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:08:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:08:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:08:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:08:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:08:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:08:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:08:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:08:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:08:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:08:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:08:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:08:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:08:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:08:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:08:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:08:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:08:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:08:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:08:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:08:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:08:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:08:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:08:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:08:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:08:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:08:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:08:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:08:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:08:49 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:08:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:08:51 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:08:53 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:08:36.965762 End time: 2026-06-03 09:08:52.507420 2026-06-03 09:08:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:08:53 INFO tclean::::casa ########################################## 2026-06-03 09:08:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:08:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:08:53 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) 2026-06-03 09:08:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:08:53 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:08:53 2026****** 2026-06-03 09:08:53 INFO ImageFitter::fit+ 2026-06-03 09:08:53 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:08:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:08:53 INFO ImageFitter::fit+ --- region: 2026-06-03 09:08:53 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:08:53 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:08:53 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:08:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:08:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:08:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:08:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:08:53 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) 2026-06-03 09:08:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:08:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:08:53 INFO imstat::::casa ########################################## 2026-06-03 09:08:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:08:53 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 ) 2026-06-03 09:08:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:08:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:08:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:08:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:08:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:08:53 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) 2026-06-03 09:08:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:08:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:08:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:08:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:08:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:08:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:08:53 INFO imstat:::: Values --- 2026-06-03 09:08:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:08:53 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:08:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:08:53 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-06-03 09:08:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:08:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:08:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:08:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:08:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:08:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:08:53 INFO imstat:::: Statistics --- 2026-06-03 09:08:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:08:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:08:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:08:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:08:53 INFO imstat:::: -- Median of the pixel values [median]: -1.86669e-05 Jy/beam 2026-06-03 09:08:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73635e-05 Jy/beam 2026-06-03 09:08:53 INFO imstat:::: -- IQR [quartile]: 3.56081e-05 Jy/beam 2026-06-03 09:08:53 INFO imstat:::: -- First quartile [q1]: -3.45085e-05 Jy/beam 2026-06-03 09:08:53 INFO imstat:::: -- Third quartile [q3]: 1.09959e-06 Jy/beam 2026-06-03 09:08:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:08:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:08:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:08:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:08:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:08:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:08:53 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 2026-06-03 09:08:53 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:08:52.588584 End time: 2026-06-03 09:08:52.616250 2026-06-03 09:08:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:08:53 INFO imstat::::casa ########################################## 2026-06-03 09:08:53 INFO phaseshift::::casa ########################################## 2026-06-03 09:08:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:08:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 00:25:24.6496' ) 2026-06-03 09:08:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:08:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:08:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:08:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:08:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:08:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:08:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:08:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:08:53 INFO MSTransformManager::open Select data 2026-06-03 09:08:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:08:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-06-03 09:08:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 00:25:24.6496' successfully parsed 2026-06-03 09:08:56 INFO phaseshift::::casa Shift phase center 2026-06-03 09:08:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:08:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:08:52.633632 End time: 2026-06-03 09:08:56.760627 2026-06-03 09:08:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:08:57 INFO phaseshift::::casa ########################################## 2026-06-03 09:08:57 INFO tclean::::casa ########################################## 2026-06-03 09:08:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:08:57 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:08:57 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:08:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:08:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:08:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:08:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:08:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:08:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:08:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:08:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:08:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:08:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:08:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:08:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:08:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029411 2026-06-03 09:08:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:08:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:08:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:09:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:09:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:09:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:09:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:09:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:09:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:09:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:09:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:09:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:09:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:09:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:09:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:09:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:09:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:09:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:09:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:09:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:09:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:09:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:09:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:09:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:09:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:09:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:09:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:09:06 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:09:06 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:09:06 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:09:07 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:09:07 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:09:09 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:08:56.808661 End time: 2026-06-03 09:09:09.328305 2026-06-03 09:09:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:09:09 INFO tclean::::casa ########################################## 2026-06-03 09:09:09 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:09:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:09:09 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:09:09 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:09:09 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:09:09 2026****** 2026-06-03 09:09:09 INFO ImageFitter::fit+ 2026-06-03 09:09:09 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:09:09 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:09:09 INFO ImageFitter::fit+ --- region: 2026-06-03 09:09:09 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:09:09 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:09:09 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:09:09 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:09:09 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:09:09 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:09:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:09:09 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:09:09 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116905 Jy 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000041 +/- 0.000777 arcsec 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- ra: 127.999941 +/- 0.000127 pixels 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- dec: 127.999954 +/- 0.000097 pixels 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:09:09 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:09:09 INFO imstat::::casa ########################################## 2026-06-03 09:09:09 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:09:09 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:09:09 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:09:09 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:09:09 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:09:09 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:09:09 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:09:09 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) 2026-06-03 09:09:09 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:09:09 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:09:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:09:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:09:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-06-03 09:09:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-06-03 09:09:09 INFO imstat:::: Values --- 2026-06-03 09:09:09 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:09:09 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:09:09 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:09:09 INFO imstat:::: -- minimum value [min]: -7.78774e-05 Jy/beam 2026-06-03 09:09:09 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:09:09 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:09:09 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:09:09 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:09:09 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:09:09 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:09:09 INFO imstat:::: Statistics --- 2026-06-03 09:09:09 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:09:09 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:09:09 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:09:09 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:09:09 INFO imstat:::: -- Median of the pixel values [median]: -1.86532e-05 Jy/beam 2026-06-03 09:09:09 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73779e-05 Jy/beam 2026-06-03 09:09:09 INFO imstat:::: -- IQR [quartile]: 3.5701e-05 Jy/beam 2026-06-03 09:09:09 INFO imstat:::: -- First quartile [q1]: -3.45356e-05 Jy/beam 2026-06-03 09:09:09 INFO imstat:::: -- Third quartile [q3]: 1.16544e-06 Jy/beam 2026-06-03 09:09:09 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:09:09 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:09:09 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:09:09 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:09:09 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:09:09 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:09:09 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 2026-06-03 09:09:09 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:09:09.407558 End time: 2026-06-03 09:09:09.435165 2026-06-03 09:09:09 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:09:09 INFO imstat::::casa ########################################## 2026-06-03 09:09:09 INFO phaseshift::::casa ########################################## 2026-06-03 09:09:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:09:09 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 6.352706472deg' ) 2026-06-03 09:09:09 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:09:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:09:09 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:09:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:09:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:09:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:09:09 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:09:09 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:09:09 INFO MSTransformManager::open Select data 2026-06-03 09:09:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:09:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:09:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 6.352706472deg' successfully parsed 2026-06-03 09:09:14 INFO phaseshift::::casa Shift phase center 2026-06-03 09:09:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:09:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:09:09.453122 End time: 2026-06-03 09:09:14.803206 2026-06-03 09:09:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:09:15 INFO phaseshift::::casa ########################################## 2026-06-03 09:09:15 INFO tclean::::casa ########################################## 2026-06-03 09:09:15 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:09:15 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:09:15 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:09:15 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:09:15 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:09:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:09:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:09:15 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:09:15 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:09:15 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:09:15 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:09:15 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:09:15 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:09:15 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:09:16 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:09:16 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.01632 2026-06-03 09:09:16 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:09:16 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:09:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:09:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:09:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:09:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:09:17 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:09:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:09:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:09:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:09:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:09:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:09:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:09:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:09:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:09:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:09:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:09:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:09:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:09:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:09:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:09:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:09:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:09:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:09:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:09:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:09:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:09:23 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:09:23 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:09:23 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:09:24 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:09:24 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:09:25 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:09:14.863406 End time: 2026-06-03 09:09:25.162754 2026-06-03 09:09:25 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:09:25 INFO tclean::::casa ########################################## 2026-06-03 09:09:25 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:09:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:09:25 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) 2026-06-03 09:09:25 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:09:25 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:09:25 2026****** 2026-06-03 09:09:25 INFO ImageFitter::fit+ 2026-06-03 09:09:25 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:09:25 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:09:25 INFO ImageFitter::fit+ --- region: 2026-06-03 09:09:25 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:09:25 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:09:25 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:09:25 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:09:25 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:09:25 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:09:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:09:25 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) 2026-06-03 09:09:25 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:09:25 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:09:25 INFO imstat::::casa ########################################## 2026-06-03 09:09:25 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:09:25 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 ) 2026-06-03 09:09:25 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:09:25 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:09:25 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:09:25 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:09:25 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:09:25 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) 2026-06-03 09:09:25 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:09:25 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:09:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:09:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:09:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:09:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:09:25 INFO imstat:::: Values --- 2026-06-03 09:09:25 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:09:25 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:09:25 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:09:25 INFO imstat:::: -- minimum value [min]: -7.77798e-05 Jy/beam 2026-06-03 09:09:25 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:09:25 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:09:25 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:09:25 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:09:25 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:09:25 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:09:25 INFO imstat:::: Statistics --- 2026-06-03 09:09:25 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:09:25 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:09:25 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:09:25 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:09:25 INFO imstat:::: -- Median of the pixel values [median]: -1.86675e-05 Jy/beam 2026-06-03 09:09:25 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73645e-05 Jy/beam 2026-06-03 09:09:25 INFO imstat:::: -- IQR [quartile]: 3.56077e-05 Jy/beam 2026-06-03 09:09:25 INFO imstat:::: -- First quartile [q1]: -3.45073e-05 Jy/beam 2026-06-03 09:09:25 INFO imstat:::: -- Third quartile [q3]: 1.1004e-06 Jy/beam 2026-06-03 09:09:25 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:09:25 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:09:25 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:09:25 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:09:25 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:09:25 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:09:25 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 2026-06-03 09:09:25 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:09:25.243690 End time: 2026-06-03 09:09:25.272547 2026-06-03 09:09:25 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:09:25 INFO imstat::::casa ########################################## 2026-06-03 09:09:25 INFO phaseshift::::casa ########################################## 2026-06-03 09:09:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:09:25 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 0.110875644rad' ) 2026-06-03 09:09:25 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:09:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:09:25 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:09:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:09:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:09:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:09:25 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:09:25 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:09:25 INFO MSTransformManager::open Select data 2026-06-03 09:09:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:09:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:09:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 0.110875644rad' successfully parsed 2026-06-03 09:09:27 INFO phaseshift::::casa Shift phase center 2026-06-03 09:09:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:09:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:09:25.290299 End time: 2026-06-03 09:09:27.667803 2026-06-03 09:09:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:09:28 INFO phaseshift::::casa ########################################## 2026-06-03 09:09:28 INFO tclean::::casa ########################################## 2026-06-03 09:09:28 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:09:28 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:09:28 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:09:28 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:09:28 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:09:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:09:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:09:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:09:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:09:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:09:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:09:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:09:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:09:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:09:29 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:09:29 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028635 2026-06-03 09:09:29 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:09:29 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:09:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:09:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:09:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:09:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:09:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:09:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:09:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:09:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:09:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:09:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:09:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:09:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:09:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:09:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:09:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:09:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:09:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:09:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:09:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:09:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:09:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:09:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:09:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:09:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:09:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:09:35 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:09:35 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:09:35 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:09:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:09:36 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:09:37 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:09:27.724240 End time: 2026-06-03 09:09:37.085418 2026-06-03 09:09:37 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:09:37 INFO tclean::::casa ########################################## 2026-06-03 09:09:37 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:09:37 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:09:37 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) 2026-06-03 09:09:37 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:09:37 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:09:37 2026****** 2026-06-03 09:09:37 INFO ImageFitter::fit+ 2026-06-03 09:09:37 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:09:37 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:09:37 INFO ImageFitter::fit+ --- region: 2026-06-03 09:09:37 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:09:37 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:09:37 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:09:37 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:09:37 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:09:37 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:09:37 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:09:37 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) 2026-06-03 09:09:37 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000002 +/- 0.000777 arcsec 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- ra: 128.000014 +/- 0.000127 pixels 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- dec: 127.999998 +/- 0.000097 pixels 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:09:37 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:09:37 INFO imstat::::casa ########################################## 2026-06-03 09:09:37 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:09:37 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 ) 2026-06-03 09:09:37 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:09:37 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:09:37 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:09:37 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:09:37 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:09:37 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) 2026-06-03 09:09:37 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:09:37 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:09:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:09:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:09:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:09:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:09:37 INFO imstat:::: Values --- 2026-06-03 09:09:37 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:09:37 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:09:37 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:09:37 INFO imstat:::: -- minimum value [min]: -7.77816e-05 Jy/beam 2026-06-03 09:09:37 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:09:37 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 09:09:37 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:09:37 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-06-03 09:09:37 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:09:37 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:09:37 INFO imstat:::: Statistics --- 2026-06-03 09:09:37 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:09:37 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:09:37 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:09:37 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:09:37 INFO imstat:::: -- Median of the pixel values [median]: -1.8676e-05 Jy/beam 2026-06-03 09:09:37 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73584e-05 Jy/beam 2026-06-03 09:09:37 INFO imstat:::: -- IQR [quartile]: 3.56038e-05 Jy/beam 2026-06-03 09:09:37 INFO imstat:::: -- First quartile [q1]: -3.45104e-05 Jy/beam 2026-06-03 09:09:37 INFO imstat:::: -- Third quartile [q3]: 1.09331e-06 Jy/beam 2026-06-03 09:09:37 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:09:37 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:09:37 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:09:37 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:09:37 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:09:37 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:09:37 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 2026-06-03 09:09:37 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:09:37.172194 End time: 2026-06-03 09:09:37.201996 2026-06-03 09:09:37 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:09:37 INFO imstat::::casa ########################################## 2026-06-03 09:09:37 INFO phaseshift::::casa ########################################## 2026-06-03 09:09:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:09:37 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39d58m05.8512' ) 2026-06-03 09:09:37 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:09:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:09:37 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:09:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:09:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:09:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:09:37 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:09:37 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:09:37 INFO MSTransformManager::open Select data 2026-06-03 09:09:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:09:40 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:09:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39d58m05.8512' successfully parsed 2026-06-03 09:09:40 INFO phaseshift::::casa Shift phase center 2026-06-03 09:09:41 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:09:41 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:09:37.221369 End time: 2026-06-03 09:09:40.699600 2026-06-03 09:09:41 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:09:41 INFO phaseshift::::casa ########################################## 2026-06-03 09:09:41 INFO tclean::::casa ########################################## 2026-06-03 09:09:41 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:09:41 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, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:09:41 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:09:41 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:09:41 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:09:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:09:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:09:41 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:09:41 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:09:41 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:09:41 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:09:41 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:09:41 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:09:41 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:09:42 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:09:42 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028711 2026-06-03 09:09:42 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:09:42 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:09:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:09:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:09:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:09:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:09:44 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:09:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:09:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:09:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:09:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:09:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:09:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:09:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:09:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:09:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:09:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:09:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:09:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:09:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:09:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:09:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:09:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:09:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:09:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:09:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:09:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:09:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:09:51 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:09:51 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:09:51 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:09:52 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:09:52 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:09:55 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:09:40.754158 End time: 2026-06-03 09:09:55.260504 2026-06-03 09:09:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:09:55 INFO tclean::::casa ########################################## 2026-06-03 09:09:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:09:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:09:55 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) 2026-06-03 09:09:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:09:55 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:09:55 2026****** 2026-06-03 09:09:55 INFO ImageFitter::fit+ 2026-06-03 09:09:55 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:09:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:09:55 INFO ImageFitter::fit+ --- region: 2026-06-03 09:09:55 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:09:55 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:09:55 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:09:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:09:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:09:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:09:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:09:55 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) 2026-06-03 09:09:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:09:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:09:55 INFO imstat::::casa ########################################## 2026-06-03 09:09:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:09:55 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 ) 2026-06-03 09:09:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:09:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:09:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:09:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:09:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:09:55 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:09:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:09:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:09:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:09:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:09:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:09:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:09:55 INFO imstat:::: Values --- 2026-06-03 09:09:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:09:55 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:09:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:09:55 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-06-03 09:09:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:09:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:09:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:09:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:09:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:09:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:09:55 INFO imstat:::: Statistics --- 2026-06-03 09:09:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:09:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:09:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:09:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:09:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-06-03 09:09:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-06-03 09:09:55 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-06-03 09:09:55 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-06-03 09:09:55 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-06-03 09:09:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:09:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:09:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:09:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:09:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:09:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:09:55 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 2026-06-03 09:09:55 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:09:55.337631 End time: 2026-06-03 09:09:55.370521 2026-06-03 09:09:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:09:55 INFO imstat::::casa ########################################## 2026-06-03 09:09:55 INFO phaseshift::::casa ########################################## 2026-06-03 09:09:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:09:55 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 19h52m05.65239 02:39:52.3901' ) 2026-06-03 09:09:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:09:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:09:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:09:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:09:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:09:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:09:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:09:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:09:55 INFO MSTransformManager::open Select data 2026-06-03 09:09:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:09:58 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 ".". 2026-06-03 09:09:58 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 02:39:52.3901' successfully parsed 2026-06-03 09:09:58 INFO phaseshift::::casa Shift phase center 2026-06-03 09:09:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:09:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:09:55.386771 End time: 2026-06-03 09:09:59.215171 2026-06-03 09:09:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:09:59 INFO phaseshift::::casa ########################################## 2026-06-03 09:09:59 INFO tclean::::casa ########################################## 2026-06-03 09:09:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:09:59 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:09:59 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:09:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:09:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:09:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:09:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:09:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:09:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:09:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:09:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:09:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:09:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:09:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:10:01 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:10:01 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028579 2026-06-03 09:10:01 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:10:01 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:10:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:10:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:10:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:10:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:10:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:10:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:10:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:10:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:10:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:10:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:10:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:10:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:10:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:10:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:10:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:10:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:10:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:10:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:10:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:10:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:10:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:10:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:10:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:10:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:10:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:10:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:10:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:10:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:10:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:10:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:10:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:10:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:10:09 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:10:09 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:10:11 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:09:59.265088 End time: 2026-06-03 09:10:10.603041 2026-06-03 09:10:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:10:11 INFO tclean::::casa ########################################## 2026-06-03 09:10:11 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:10:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:10:11 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:10:11 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:10:11 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:10:11 2026****** 2026-06-03 09:10:11 INFO ImageFitter::fit+ 2026-06-03 09:10:11 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:10:11 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:10:11 INFO ImageFitter::fit+ --- region: 2026-06-03 09:10:11 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:10:11 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:10:11 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:10:11 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:10:11 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:10:11 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:10:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:10:11 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:10:11 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:10:11 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:10:11 INFO imstat::::casa ########################################## 2026-06-03 09:10:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:10:11 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:10:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:10:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:10:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:10:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:10:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:10:11 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-06-03 09:10:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:10:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:10:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:10:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:10:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-06-03 09:10:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-06-03 09:10:11 INFO imstat:::: Values --- 2026-06-03 09:10:11 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:10:11 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:10:11 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:10:11 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-06-03 09:10:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:10:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:10:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:10:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:10:11 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:10:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:10:11 INFO imstat:::: Statistics --- 2026-06-03 09:10:11 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:10:11 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:10:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:10:11 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:10:11 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-06-03 09:10:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-06-03 09:10:11 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-06-03 09:10:11 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-06-03 09:10:11 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-06-03 09:10:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:10:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:10:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:10:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:10:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:10:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:10:11 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 2026-06-03 09:10:11 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:10:10.674098 End time: 2026-06-03 09:10:10.697954 2026-06-03 09:10:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:10:11 INFO imstat::::casa ########################################## 2026-06-03 09:10:11 INFO phaseshift::::casa ########################################## 2026-06-03 09:10:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:10:11 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39.968292000deg' ) 2026-06-03 09:10:11 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:10:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:10:11 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:10:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:10:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:10:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:10:11 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:10:11 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:10:11 INFO MSTransformManager::open Select data 2026-06-03 09:10:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:10:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:10:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39.968292000deg' successfully parsed 2026-06-03 09:10:14 INFO phaseshift::::casa Shift phase center 2026-06-03 09:10:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:10:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:10:10.713568 End time: 2026-06-03 09:10:14.603416 2026-06-03 09:10:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:10:15 INFO phaseshift::::casa ########################################## 2026-06-03 09:10:15 INFO tclean::::casa ########################################## 2026-06-03 09:10:15 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:10:15 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:10:15 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:10:15 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:10:15 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:10:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:10:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:10:15 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:10:15 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:10:15 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:10:15 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:10:15 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:10:15 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:10:15 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:10:16 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:10:16 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027048 2026-06-03 09:10:16 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:10:16 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:10:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:10:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:10:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:10:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:10:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:10:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:10:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:10:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:10:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:10:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:10:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:10:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:10:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:10:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:10:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:10:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:10:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:10:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:10:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:10:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:10:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:10:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:10:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:10:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:10:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:10:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:10:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:10:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:10:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:10:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:10:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:10:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:10:31 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:10:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:10:33 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:10:14.655647 End time: 2026-06-03 09:10:32.704444 2026-06-03 09:10:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:10:33 INFO tclean::::casa ########################################## 2026-06-03 09:10:33 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:10:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:10:33 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:10:33 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:10:33 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:10:33 2026****** 2026-06-03 09:10:33 INFO ImageFitter::fit+ 2026-06-03 09:10:33 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:10:33 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:10:33 INFO ImageFitter::fit+ --- region: 2026-06-03 09:10:33 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:10:33 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:10:33 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:10:33 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:10:33 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:10:33 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:10:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:10:33 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:10:33 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:10:33 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:10:33 INFO imstat::::casa ########################################## 2026-06-03 09:10:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:10:33 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:10:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:10:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:10:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:10:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:10:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:10:33 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:10:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:10:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:10:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:10:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:10:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:10:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:10:33 INFO imstat:::: Values --- 2026-06-03 09:10:33 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:10:33 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:10:33 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:10:33 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-06-03 09:10:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:10:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:10:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:10:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:10:33 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:10:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:10:33 INFO imstat:::: Statistics --- 2026-06-03 09:10:33 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:10:33 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:10:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:10:33 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:10:33 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-06-03 09:10:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-06-03 09:10:33 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-06-03 09:10:33 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-06-03 09:10:33 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-06-03 09:10:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:10:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:10:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:10:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:10:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:10:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:10:33 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 2026-06-03 09:10:33 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:10:32.778681 End time: 2026-06-03 09:10:32.805763 2026-06-03 09:10:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:10:33 INFO imstat::::casa ########################################## 2026-06-03 09:10:33 INFO phaseshift::::casa ########################################## 2026-06-03 09:10:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:10:33 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 0.697578292rad' ) 2026-06-03 09:10:33 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:10:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:10:33 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:10:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:10:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:10:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:10:33 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:10:33 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:10:33 INFO MSTransformManager::open Select data 2026-06-03 09:10:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:10:37 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:10:37 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 0.697578292rad' successfully parsed 2026-06-03 09:10:37 INFO phaseshift::::casa Shift phase center 2026-06-03 09:10:38 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:10:38 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:10:32.821786 End time: 2026-06-03 09:10:38.145477 2026-06-03 09:10:38 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:10:38 INFO phaseshift::::casa ########################################## 2026-06-03 09:10:38 INFO tclean::::casa ########################################## 2026-06-03 09:10:38 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:10:38 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:10:38 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:10:38 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:10:38 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:10:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:10:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:10:38 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:10:38 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:10:38 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:10:38 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:10:38 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:10:38 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:10:38 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:10:39 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:10:40 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024782 2026-06-03 09:10:40 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:10:40 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:10:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:10:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:10:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:10:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:10:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:10:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:10:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:10:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:10:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:10:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:10:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:10:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:10:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:10:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:10:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:10:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:10:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:10:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:10:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:10:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:10:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:10:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:10:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:10:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:10:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:10:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:10:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:10:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:10:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:10:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:10:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:10:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:10:46 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:10:47 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:10:48 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:10:38.201443 End time: 2026-06-03 09:10:48.326843 2026-06-03 09:10:48 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:10:48 INFO tclean::::casa ########################################## 2026-06-03 09:10:48 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:10:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:10:48 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:10:48 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:10:48 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:10:48 2026****** 2026-06-03 09:10:48 INFO ImageFitter::fit+ 2026-06-03 09:10:48 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:10:48 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:10:48 INFO ImageFitter::fit+ --- region: 2026-06-03 09:10:48 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:10:48 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:10:48 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:10:48 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:10:48 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:10:48 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:10:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:10:48 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:10:48 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:10:48 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:10:48 INFO imstat::::casa ########################################## 2026-06-03 09:10:48 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:10:48 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:10:48 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:10:48 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:10:48 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:10:48 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:10:48 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:10:48 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:10:48 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:10:48 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:10:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:10:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:10:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:10:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:10:48 INFO imstat:::: Values --- 2026-06-03 09:10:48 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:10:48 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:10:48 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:10:48 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-06-03 09:10:48 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:10:48 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:10:48 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:10:48 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:10:48 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:10:48 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:10:48 INFO imstat:::: Statistics --- 2026-06-03 09:10:48 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:10:48 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:10:48 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:10:48 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:10:48 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-06-03 09:10:48 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-06-03 09:10:48 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-06-03 09:10:48 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-06-03 09:10:48 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-06-03 09:10:48 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:10:48 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:10:48 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:10:48 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:10:48 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:10:48 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:10:48 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 2026-06-03 09:10:48 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:10:48.405429 End time: 2026-06-03 09:10:48.433509 2026-06-03 09:10:48 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:10:48 INFO imstat::::casa ########################################## 2026-06-03 09:10:48 INFO phaseshift::::casa ########################################## 2026-06-03 09:10:48 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:10:48 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39d58m05.8512' ) 2026-06-03 09:10:48 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:10:48 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:10:48 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:10:48 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:10:48 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:10:48 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:10:48 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:10:48 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:10:48 INFO MSTransformManager::open Select data 2026-06-03 09:10:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:10:52 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:10:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39d58m05.8512' successfully parsed 2026-06-03 09:10:52 INFO phaseshift::::casa Shift phase center 2026-06-03 09:10:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:10:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:10:48.449918 End time: 2026-06-03 09:10:52.833015 2026-06-03 09:10:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:10:53 INFO phaseshift::::casa ########################################## 2026-06-03 09:10:53 INFO tclean::::casa ########################################## 2026-06-03 09:10:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:10:53 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:10:53 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:10:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:10:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:10:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:10:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:10:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:10:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:10:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:10:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:10:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:10:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:10:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:10:54 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:10:54 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024395 2026-06-03 09:10:54 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:10:54 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:10:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:10:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:10:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:10:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:10:56 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:10:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:10:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:10:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:10:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:10:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:10:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:10:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:10:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:10:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:10:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:10:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:11:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:11:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:11:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:11:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:11:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:11:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:11:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:11:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:11:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:11:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:11:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:11:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:11:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:11:03 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:11:03 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:11:03 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:11:04 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:11:04 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:11:06 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:10:52.893255 End time: 2026-06-03 09:11:06.021667 2026-06-03 09:11:06 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:11:06 INFO tclean::::casa ########################################## 2026-06-03 09:11:06 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:11:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:11:06 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:11:06 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:11:06 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:11:06 2026****** 2026-06-03 09:11:06 INFO ImageFitter::fit+ 2026-06-03 09:11:06 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:11:06 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:11:06 INFO ImageFitter::fit+ --- region: 2026-06-03 09:11:06 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:11:06 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:11:06 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:11:06 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:11:06 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:11:06 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:11:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:11:06 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:11:06 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:11:06 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:11:06 INFO imstat::::casa ########################################## 2026-06-03 09:11:06 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:11:06 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:11:06 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:11:06 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:11:06 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:11:06 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:11:06 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:11:06 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:11:06 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:11:06 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:11:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:11:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:11:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:11:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:11:06 INFO imstat:::: Values --- 2026-06-03 09:11:06 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:11:06 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:11:06 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:11:06 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-06-03 09:11:06 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:11:06 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 09:11:06 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:11:06 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-06-03 09:11:06 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:11:06 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:11:06 INFO imstat:::: Statistics --- 2026-06-03 09:11:06 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:11:06 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:11:06 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:11:06 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:11:06 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-06-03 09:11:06 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-06-03 09:11:06 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-06-03 09:11:06 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-06-03 09:11:06 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-06-03 09:11:06 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:11:06 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:11:06 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:11:06 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:11:06 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:11:06 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:11:06 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 2026-06-03 09:11:06 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:11:06.092003 End time: 2026-06-03 09:11:06.117518 2026-06-03 09:11:06 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:11:06 INFO imstat::::casa ########################################## 2026-06-03 09:11:06 INFO phaseshift::::casa ########################################## 2026-06-03 09:11:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:11:06 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 02:39:52.3901' ) 2026-06-03 09:11:06 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:11:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:11:06 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:11:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:11:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:11:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:11:06 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:11:06 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:11:06 INFO MSTransformManager::open Select data 2026-06-03 09:11:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:11:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-06-03 09:11:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 02:39:52.3901' successfully parsed 2026-06-03 09:11:10 INFO phaseshift::::casa Shift phase center 2026-06-03 09:11:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:11:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:11:06.133486 End time: 2026-06-03 09:11:10.313288 2026-06-03 09:11:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:11:10 INFO phaseshift::::casa ########################################## 2026-06-03 09:11:10 INFO tclean::::casa ########################################## 2026-06-03 09:11:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:11:10 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:11:10 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:11:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:11:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:11:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:11:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:11:11 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:11:11 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:11:11 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:11:11 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:11:11 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:11:11 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:11:11 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:11:11 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:11:12 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029341 2026-06-03 09:11:12 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:11:12 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:11:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:11:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:11:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:11:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:11:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:11:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:11:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:11:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:11:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:11:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:11:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:11:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:11:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:11:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:11:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:11:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:11:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:11:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:11:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:11:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:11:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:11:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:11:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:11:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:11:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:11:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:11:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:11:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:11:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:11:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:11:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:11:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:11:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:11:17 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:11:19 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:11:10.365754 End time: 2026-06-03 09:11:18.509499 2026-06-03 09:11:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:11:19 INFO tclean::::casa ########################################## 2026-06-03 09:11:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:11:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:11:19 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) 2026-06-03 09:11:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:11:19 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:11:19 2026****** 2026-06-03 09:11:19 INFO ImageFitter::fit+ 2026-06-03 09:11:19 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:11:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:11:19 INFO ImageFitter::fit+ --- region: 2026-06-03 09:11:19 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:11:19 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:11:19 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:11:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:11:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:11:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:11:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:11:19 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) 2026-06-03 09:11:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- ra: 128.000008 +/- 0.000127 pixels 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:11:19 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:11:19 INFO imstat::::casa ########################################## 2026-06-03 09:11:19 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:11:19 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 ) 2026-06-03 09:11:19 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:11:19 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:11:19 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:11:19 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:11:19 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:11:19 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) 2026-06-03 09:11:19 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:11:19 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:11:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:11:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:11:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-06-03 09:11:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-06-03 09:11:19 INFO imstat:::: Values --- 2026-06-03 09:11:19 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:11:19 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:11:19 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:11:19 INFO imstat:::: -- minimum value [min]: -7.78143e-05 Jy/beam 2026-06-03 09:11:19 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:11:19 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:11:19 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:11:19 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:11:19 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:11:19 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:11:19 INFO imstat:::: Statistics --- 2026-06-03 09:11:19 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:11:19 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:11:19 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:11:19 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:11:19 INFO imstat:::: -- Median of the pixel values [median]: -1.86838e-05 Jy/beam 2026-06-03 09:11:19 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73769e-05 Jy/beam 2026-06-03 09:11:19 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-06-03 09:11:19 INFO imstat:::: -- First quartile [q1]: -3.45216e-05 Jy/beam 2026-06-03 09:11:19 INFO imstat:::: -- Third quartile [q3]: 1.1124e-06 Jy/beam 2026-06-03 09:11:19 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:11:19 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:11:19 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:11:19 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:11:19 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:11:19 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:11:19 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 2026-06-03 09:11:19 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:11:18.588463 End time: 2026-06-03 09:11:18.615866 2026-06-03 09:11:19 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:11:19 INFO imstat::::casa ########################################## 2026-06-03 09:11:19 INFO phaseshift::::casa ########################################## 2026-06-03 09:11:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:11:19 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39.968292000deg' ) 2026-06-03 09:11:19 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:11:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:11:19 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:11:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:11:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:11:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:11:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:11:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:11:19 INFO MSTransformManager::open Select data 2026-06-03 09:11:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:11:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:11:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39.968292000deg' successfully parsed 2026-06-03 09:11:20 INFO phaseshift::::casa Shift phase center 2026-06-03 09:11:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:11:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:11:18.633017 End time: 2026-06-03 09:11:20.825399 2026-06-03 09:11:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:11:21 INFO phaseshift::::casa ########################################## 2026-06-03 09:11:21 INFO tclean::::casa ########################################## 2026-06-03 09:11:21 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:11:21 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:11:21 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:11:21 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:11:21 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:11:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:11:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:11:21 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:11:21 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:11:21 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:11:21 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:11:21 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:11:21 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:11:21 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:11:22 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:11:22 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029301 2026-06-03 09:11:22 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:11:22 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:11:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:11:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:11:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:11:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:11:24 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:11:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:11:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:11:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:11:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:11:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:11:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:11:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:11:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:11:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:11:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:11:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:11:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:11:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:11:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:11:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:11:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:11:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:11:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:11:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:11:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:11:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:11:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:11:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:11:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:11:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:11:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:11:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:11:37 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:11:37 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:11:39 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:11:20.880064 End time: 2026-06-03 09:11:38.565503 2026-06-03 09:11:39 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:11:39 INFO tclean::::casa ########################################## 2026-06-03 09:11:39 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:11:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:11:39 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) 2026-06-03 09:11:39 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:11:39 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:11:39 2026****** 2026-06-03 09:11:39 INFO ImageFitter::fit+ 2026-06-03 09:11:39 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:11:39 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:11:39 INFO ImageFitter::fit+ --- region: 2026-06-03 09:11:39 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:11:39 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:11:39 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:11:39 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:11:39 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:11:39 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:11:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:11:39 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) 2026-06-03 09:11:39 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:11:39 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:11:39 INFO imstat::::casa ########################################## 2026-06-03 09:11:39 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:11:39 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 ) 2026-06-03 09:11:39 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:11:39 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:11:39 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:11:39 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:11:39 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:11:39 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:11:39 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:11:39 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:11:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:11:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:11:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:11:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:11:39 INFO imstat:::: Values --- 2026-06-03 09:11:39 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:11:39 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:11:39 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:11:39 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-06-03 09:11:39 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:11:39 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-06-03 09:11:39 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:11:39 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-06-03 09:11:39 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:11:39 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:11:39 INFO imstat:::: Statistics --- 2026-06-03 09:11:39 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:11:39 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:11:39 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:11:39 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:11:39 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-06-03 09:11:39 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-06-03 09:11:39 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-06-03 09:11:39 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-06-03 09:11:39 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-06-03 09:11:39 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:11:39 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:11:39 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:11:39 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:11:39 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:11:39 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:11:39 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 2026-06-03 09:11:39 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:11:38.665593 End time: 2026-06-03 09:11:38.695412 2026-06-03 09:11:39 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:11:39 INFO imstat::::casa ########################################## 2026-06-03 09:11:39 INFO phaseshift::::casa ########################################## 2026-06-03 09:11:39 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:11:39 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 0.697578292rad' ) 2026-06-03 09:11:39 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:11:39 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:11:39 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:11:39 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:11:39 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:11:39 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:11:39 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:11:39 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:11:39 INFO MSTransformManager::open Select data 2026-06-03 09:11:39 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:11:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:11:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 0.697578292rad' successfully parsed 2026-06-03 09:11:44 INFO phaseshift::::casa Shift phase center 2026-06-03 09:11:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:11:47 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:11:38.712936 End time: 2026-06-03 09:11:46.553866 2026-06-03 09:11:47 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:11:47 INFO phaseshift::::casa ########################################## 2026-06-03 09:11:47 INFO tclean::::casa ########################################## 2026-06-03 09:11:47 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:11:47 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:11:47 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:11:47 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:11:47 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:11:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:11:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:11:47 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:11:47 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:11:47 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:11:47 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:11:47 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:11:47 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:11:47 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:11:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:11:50 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029561 2026-06-03 09:11:50 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:11:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:11:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:11:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:11:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:11:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:11:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:11:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:11:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:11:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:11:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:11:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:11:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:11:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:11:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:11:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:11:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:11:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:11:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:11:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:11:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:12:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:12:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:12:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:12:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:12:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:12:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:12:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:12:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:12:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:12:02 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:12:02 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:12:02 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:12:02 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:12:02 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:12:03 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:11:46.613686 End time: 2026-06-03 09:12:02.780724 2026-06-03 09:12:03 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:12:03 INFO tclean::::casa ########################################## 2026-06-03 09:12:03 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:12:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:12:03 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) 2026-06-03 09:12:03 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:12:03 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:12:03 2026****** 2026-06-03 09:12:03 INFO ImageFitter::fit+ 2026-06-03 09:12:03 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:12:03 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:12:03 INFO ImageFitter::fit+ --- region: 2026-06-03 09:12:03 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:12:03 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:12:03 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:12:03 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:12:03 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:12:03 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:12:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:12:03 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) 2026-06-03 09:12:03 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:12:03 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:12:03 INFO imstat::::casa ########################################## 2026-06-03 09:12:03 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:12:03 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 ) 2026-06-03 09:12:03 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:12:03 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:12:03 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:12:03 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:12:03 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:12:03 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:12:03 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:12:03 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:12:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:12:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:12:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:12:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:12:03 INFO imstat:::: Values --- 2026-06-03 09:12:03 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:12:03 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:12:03 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:12:03 INFO imstat:::: -- minimum value [min]: -7.7781e-05 Jy/beam 2026-06-03 09:12:03 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:12:03 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:12:03 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:12:03 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:12:03 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:12:03 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:12:03 INFO imstat:::: Statistics --- 2026-06-03 09:12:03 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:12:03 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:12:03 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:12:03 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:12:03 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-06-03 09:12:03 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73593e-05 Jy/beam 2026-06-03 09:12:03 INFO imstat:::: -- IQR [quartile]: 3.56161e-05 Jy/beam 2026-06-03 09:12:03 INFO imstat:::: -- First quartile [q1]: -3.45125e-05 Jy/beam 2026-06-03 09:12:03 INFO imstat:::: -- Third quartile [q3]: 1.10364e-06 Jy/beam 2026-06-03 09:12:03 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:12:03 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:12:03 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:12:03 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:12:03 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:12:03 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:12:03 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 2026-06-03 09:12:03 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:12:02.854145 End time: 2026-06-03 09:12:02.885922 2026-06-03 09:12:03 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:12:03 INFO imstat::::casa ########################################## 2026-06-03 09:12:03 INFO phaseshift::::casa ########################################## 2026-06-03 09:12:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:12:03 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39d58m05.8512' ) 2026-06-03 09:12:03 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:12:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:12:03 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:12:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:12:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:12:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:12:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:12:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:12:03 INFO MSTransformManager::open Select data 2026-06-03 09:12:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:12:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:12:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39d58m05.8512' successfully parsed 2026-06-03 09:12:05 INFO phaseshift::::casa Shift phase center 2026-06-03 09:12:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:12:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:12:02.901453 End time: 2026-06-03 09:12:07.163304 2026-06-03 09:12:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:12:07 INFO phaseshift::::casa ########################################## 2026-06-03 09:12:07 INFO tclean::::casa ########################################## 2026-06-03 09:12:07 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:12:07 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:12:07 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:12:07 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:12:07 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:12:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:12:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:12:07 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:12:07 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:12:07 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:12:07 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:12:07 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:12:07 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:12:07 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:12:09 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:12:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028748 2026-06-03 09:12:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:12:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:12:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:12:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:12:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:12:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:12:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:12:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:12:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:12:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:12:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:12:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:12:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:12:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:12:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:12:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:12:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:12:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:12:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:12:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:12:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:12:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:12:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:12:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:12:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:12:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:12:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:12:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:12:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:12:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:12:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:12:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:12:17 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:12:07.222606 End time: 2026-06-03 09:12:17.182728 2026-06-03 09:12:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:12:17 INFO tclean::::casa ########################################## 2026-06-03 09:12:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:12:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:12:17 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:12:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:12:17 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:12:17 2026****** 2026-06-03 09:12:17 INFO ImageFitter::fit+ 2026-06-03 09:12:17 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:12:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:12:17 INFO ImageFitter::fit+ --- region: 2026-06-03 09:12:17 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:12:17 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:12:17 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:12:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:12:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:12:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:12:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:12:17 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:12:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:12:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:12:17 INFO imstat::::casa ########################################## 2026-06-03 09:12:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:12:17 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:12:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:12:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:12:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:12:17 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:12:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:12:17 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:12:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:12:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:12:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:12:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:12:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:12:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:12:17 INFO imstat:::: Values --- 2026-06-03 09:12:17 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:12:17 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:12:17 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:12:17 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-06-03 09:12:17 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:12:17 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:12:17 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:12:17 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:12:17 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:12:17 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:12:17 INFO imstat:::: Statistics --- 2026-06-03 09:12:17 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:12:17 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:12:17 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:12:17 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:12:17 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-06-03 09:12:17 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-06-03 09:12:17 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-06-03 09:12:17 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-06-03 09:12:17 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-06-03 09:12:17 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:12:17 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:12:17 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:12:17 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:12:17 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:12:17 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:12:17 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 2026-06-03 09:12:17 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:12:17.260554 End time: 2026-06-03 09:12:17.287796 2026-06-03 09:12:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:12:17 INFO imstat::::casa ########################################## 2026-06-03 09:12:17 INFO phaseshift::::casa ########################################## 2026-06-03 09:12:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:12:17 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 02:39:52.3901' ) 2026-06-03 09:12:17 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:12:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:12:17 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:12:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:12:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:12:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:12:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:12:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:12:17 INFO MSTransformManager::open Select data 2026-06-03 09:12:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:12:22 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 ".". 2026-06-03 09:12:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 02:39:52.3901' successfully parsed 2026-06-03 09:12:22 INFO phaseshift::::casa Shift phase center 2026-06-03 09:12:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:12:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:12:17.304217 End time: 2026-06-03 09:12:22.469552 2026-06-03 09:12:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:12:22 INFO phaseshift::::casa ########################################## 2026-06-03 09:12:23 INFO tclean::::casa ########################################## 2026-06-03 09:12:23 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:12:23 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:12:23 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:12:23 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:12:23 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:12:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:12:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:12:23 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:12:23 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:12:23 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:12:23 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:12:23 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:12:23 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:12:23 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:12:24 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:12:24 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02705 2026-06-03 09:12:24 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:12:24 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:12:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:12:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:12:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:12:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:12:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:12:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:12:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:12:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:12:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:12:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:12:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:12:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:12:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:12:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:12:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:12:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:12:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:12:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:12:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:12:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:12:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:12:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:12:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:12:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:12:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:12:30 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:12:30 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:12:30 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:12:30 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:12:30 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:12:31 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:12:22.514406 End time: 2026-06-03 09:12:30.722577 2026-06-03 09:12:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:12:31 INFO tclean::::casa ########################################## 2026-06-03 09:12:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:12:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:12:31 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) 2026-06-03 09:12:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:12:31 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:12:31 2026****** 2026-06-03 09:12:31 INFO ImageFitter::fit+ 2026-06-03 09:12:31 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:12:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:12:31 INFO ImageFitter::fit+ --- region: 2026-06-03 09:12:31 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:12:31 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:12:31 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:12:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:12:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:12:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:12:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:12:31 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) 2026-06-03 09:12:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:12:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:12:31 INFO imstat::::casa ########################################## 2026-06-03 09:12:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:12:31 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 ) 2026-06-03 09:12:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:12:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:12:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:12:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:12:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:12:31 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-06-03 09:12:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:12:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:12:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:12:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:12:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-06-03 09:12:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-06-03 09:12:31 INFO imstat:::: Values --- 2026-06-03 09:12:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:12:31 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:12:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:12:31 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-06-03 09:12:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:12:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:12:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:12:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:12:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:12:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:12:31 INFO imstat:::: Statistics --- 2026-06-03 09:12:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:12:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:12:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:12:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:12:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-06-03 09:12:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-06-03 09:12:31 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-06-03 09:12:31 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-06-03 09:12:31 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-06-03 09:12:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:12:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:12:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:12:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:12:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:12:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:12:31 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 2026-06-03 09:12:31 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:12:30.802976 End time: 2026-06-03 09:12:30.830646 2026-06-03 09:12:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:12:31 INFO imstat::::casa ########################################## 2026-06-03 09:12:31 INFO phaseshift::::casa ########################################## 2026-06-03 09:12:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:12:31 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 298.023551625deg 39.968292000deg' ) 2026-06-03 09:12:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:12:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:12:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:12:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:12:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:12:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:12:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:12:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:12:31 INFO MSTransformManager::open Select data 2026-06-03 09:12:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:12:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:12:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39.968292000deg' successfully parsed 2026-06-03 09:12:33 INFO phaseshift::::casa Shift phase center 2026-06-03 09:12:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:12:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:12:30.847601 End time: 2026-06-03 09:12:34.029499 2026-06-03 09:12:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:12:34 INFO phaseshift::::casa ########################################## 2026-06-03 09:12:34 INFO tclean::::casa ########################################## 2026-06-03 09:12:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:12:34 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:12:34 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:12:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:12:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:12:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:12:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:12:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:12:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:12:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:12:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:12:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:12:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:12:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:12:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:12:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027148 2026-06-03 09:12:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:12:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:12:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:12:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:12:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:12:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:12:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:12:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:12:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:12:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:12:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:12:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:12:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:12:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:12:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:12:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:12:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:12:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:12:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:12:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:12:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:12:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:12:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:12:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:12:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:12:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:12:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:12:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:12:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:12:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:12:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:12:45 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:12:47 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:12:34.080551 End time: 2026-06-03 09:12:46.617387 2026-06-03 09:12:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:12:47 INFO tclean::::casa ########################################## 2026-06-03 09:12:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:12:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:12:47 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:12:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:12:47 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:12:47 2026****** 2026-06-03 09:12:47 INFO ImageFitter::fit+ 2026-06-03 09:12:47 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:12:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:12:47 INFO ImageFitter::fit+ --- region: 2026-06-03 09:12:47 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:12:47 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:12:47 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:12:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:12:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:12:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:12:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:12:47 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:12:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:12:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:12:47 INFO imstat::::casa ########################################## 2026-06-03 09:12:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:12:47 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:12:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:12:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:12:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:12:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:12:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:12:47 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:12:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:12:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:12:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:12:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:12:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:12:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:12:47 INFO imstat:::: Values --- 2026-06-03 09:12:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:12:47 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:12:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:12:47 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-06-03 09:12:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:12:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:12:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:12:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:12:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:12:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:12:47 INFO imstat:::: Statistics --- 2026-06-03 09:12:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:12:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:12:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:12:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:12:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-06-03 09:12:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-06-03 09:12:47 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-06-03 09:12:47 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-06-03 09:12:47 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-06-03 09:12:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:12:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:12:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:12:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:12:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:12:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:12:47 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 2026-06-03 09:12:47 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:12:46.702202 End time: 2026-06-03 09:12:46.731767 2026-06-03 09:12:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:12:47 INFO imstat::::casa ########################################## 2026-06-03 09:12:47 INFO phaseshift::::casa ########################################## 2026-06-03 09:12:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:12:47 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 0.697578292rad' ) 2026-06-03 09:12:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:12:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:12:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:12:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:12:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:12:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:12:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:12:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:12:47 INFO MSTransformManager::open Select data 2026-06-03 09:12:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:12:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:12:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 0.697578292rad' successfully parsed 2026-06-03 09:12:50 INFO phaseshift::::casa Shift phase center 2026-06-03 09:12:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:12:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:12:46.749773 End time: 2026-06-03 09:12:50.533424 2026-06-03 09:12:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:12:51 INFO phaseshift::::casa ########################################## 2026-06-03 09:12:51 INFO tclean::::casa ########################################## 2026-06-03 09:12:51 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:12:51 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:12:51 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:12:51 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:12:51 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:12:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:12:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:12:51 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:12:51 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:12:51 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:12:51 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:12:51 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:12:51 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:12:51 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:12:52 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:12:52 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029317 2026-06-03 09:12:52 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:12:52 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:12:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:12:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:12:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:12:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:12:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:12:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:12:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:12:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:12:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:12:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:12:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:12:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:12:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:12:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:12:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:12:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:12:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:12:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:12:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:12:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:12:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:12:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:12:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:12:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:12:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:12:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:12:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:12:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:12:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:12:59 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:12:59 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:13:00 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:12:50.591606 End time: 2026-06-03 09:13:00.485571 2026-06-03 09:13:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:13:00 INFO tclean::::casa ########################################## 2026-06-03 09:13:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:13:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:01 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) 2026-06-03 09:13:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:13:01 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:13:01 2026****** 2026-06-03 09:13:01 INFO ImageFitter::fit+ 2026-06-03 09:13:01 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:13:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:13:01 INFO ImageFitter::fit+ --- region: 2026-06-03 09:13:01 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:13:01 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:13:01 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:13:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:13:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:13:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:13:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:01 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) 2026-06-03 09:13:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:13:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:13:01 INFO imstat::::casa ########################################## 2026-06-03 09:13:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:13:01 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 ) 2026-06-03 09:13:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:13:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:13:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:13:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:13:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:01 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) 2026-06-03 09:13:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:13:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:13:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:13:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:13:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:13:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:13:01 INFO imstat:::: Values --- 2026-06-03 09:13:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:13:01 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:13:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:13:01 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-06-03 09:13:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:13:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:13:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:13:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:13:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:13:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:13:01 INFO imstat:::: Statistics --- 2026-06-03 09:13:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:13:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:13:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:13:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:13:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-06-03 09:13:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-06-03 09:13:01 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-06-03 09:13:01 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-06-03 09:13:01 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-06-03 09:13:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:13:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:13:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:13:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:13:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:13:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:13:01 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 2026-06-03 09:13:01 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:13:00.566211 End time: 2026-06-03 09:13:00.611431 2026-06-03 09:13:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:13:01 INFO imstat::::casa ########################################## 2026-06-03 09:13:01 INFO phaseshift::::casa ########################################## 2026-06-03 09:13:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:13:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39d58m05.8512' ) 2026-06-03 09:13:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:13:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:13:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:13:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:13:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:13:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:13:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:13:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:13:01 INFO MSTransformManager::open Select data 2026-06-03 09:13:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:13:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:13:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39d58m05.8512' successfully parsed 2026-06-03 09:13:05 INFO phaseshift::::casa Shift phase center 2026-06-03 09:13:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:13:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:13:00.637500 End time: 2026-06-03 09:13:05.735176 2026-06-03 09:13:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:13:06 INFO phaseshift::::casa ########################################## 2026-06-03 09:13:06 INFO tclean::::casa ########################################## 2026-06-03 09:13:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:13:06 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:13:06 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:13:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:13:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:13:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:13:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:13:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:13:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:13:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:13:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:13:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:13:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:13:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:13:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:13:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029479 2026-06-03 09:13:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:13:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:13:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:13:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:13:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:13:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:13:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:13:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:13:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:13:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:13:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:13:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:13:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:13:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:13:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:13:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:13:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:13:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:13:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:13:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:13:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:13:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:13:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:13:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:13:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:13:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:13:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:13:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:13:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:13:13 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:13:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:13:14 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:13:15 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:13:05.777162 End time: 2026-06-03 09:13:14.716983 2026-06-03 09:13:15 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:13:15 INFO tclean::::casa ########################################## 2026-06-03 09:13:15 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:13:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:15 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:13:15 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:13:15 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:13:15 2026****** 2026-06-03 09:13:15 INFO ImageFitter::fit+ 2026-06-03 09:13:15 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:13:15 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:13:15 INFO ImageFitter::fit+ --- region: 2026-06-03 09:13:15 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:13:15 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:13:15 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:13:15 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:13:15 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:13:15 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:13:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:15 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:13:15 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:13:15 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:13:15 INFO imstat::::casa ########################################## 2026-06-03 09:13:15 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:13:15 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:13:15 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:13:15 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:13:15 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:13:15 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:13:15 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:15 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:13:15 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:13:15 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:13:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:13:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:13:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:13:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:13:15 INFO imstat:::: Values --- 2026-06-03 09:13:15 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:13:15 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:13:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:13:15 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-06-03 09:13:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:13:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:13:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:13:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:13:15 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:13:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:13:15 INFO imstat:::: Statistics --- 2026-06-03 09:13:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:13:15 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:13:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:13:15 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:13:15 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-06-03 09:13:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-06-03 09:13:15 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-06-03 09:13:15 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-06-03 09:13:15 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-06-03 09:13:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:13:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:13:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:13:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:13:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:13:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:13:15 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 2026-06-03 09:13:15 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:13:14.800963 End time: 2026-06-03 09:13:14.830210 2026-06-03 09:13:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:13:15 INFO imstat::::casa ########################################## 2026-06-03 09:13:15 INFO phaseshift::::casa ########################################## 2026-06-03 09:13:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:13:15 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 02:39:52.3901' ) 2026-06-03 09:13:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:13:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:13:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:13:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:13:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:13:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:13:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:13:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:13:15 INFO MSTransformManager::open Select data 2026-06-03 09:13:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:13:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-06-03 09:13:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 02:39:52.3901' successfully parsed 2026-06-03 09:13:17 INFO phaseshift::::casa Shift phase center 2026-06-03 09:13:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:13:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:13:14.846998 End time: 2026-06-03 09:13:17.836102 2026-06-03 09:13:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:13:18 INFO phaseshift::::casa ########################################## 2026-06-03 09:13:18 INFO tclean::::casa ########################################## 2026-06-03 09:13:18 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:13:18 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:13:18 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:13:18 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:13:18 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:13:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:13:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:13:18 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:13:18 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:13:18 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:13:18 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:13:18 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:13:18 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:13:18 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:13:19 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:13:19 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027115 2026-06-03 09:13:19 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:13:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:13:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:13:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:13:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:13:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:13:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:13:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:13:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:13:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:13:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:13:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:13:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:13:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:13:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:13:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:13:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:13:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:13:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:13:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:13:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:13:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:13:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-06-03 09:13:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:13:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:13:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:13:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:13:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:13:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:13:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:13:28 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:13:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:13:30 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:13:17.868552 End time: 2026-06-03 09:13:29.757137 2026-06-03 09:13:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:13:30 INFO tclean::::casa ########################################## 2026-06-03 09:13:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:13:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:30 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) 2026-06-03 09:13:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:13:30 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:13:30 2026****** 2026-06-03 09:13:30 INFO ImageFitter::fit+ 2026-06-03 09:13:30 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:13:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:13:30 INFO ImageFitter::fit+ --- region: 2026-06-03 09:13:30 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:13:30 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:13:30 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:13:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:13:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:13:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:13:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:30 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) 2026-06-03 09:13:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116885 Jy 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126501 Jy 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:13:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:13:30 INFO imstat::::casa ########################################## 2026-06-03 09:13:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:13:30 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 ) 2026-06-03 09:13:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:13:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:13:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:13:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:13:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:30 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-06-03 09:13:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:13:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:13:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:13:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:13:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-06-03 09:13:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-06-03 09:13:30 INFO imstat:::: Values --- 2026-06-03 09:13:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:13:30 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:13:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:13:30 INFO imstat:::: -- minimum value [min]: -7.78268e-05 Jy/beam 2026-06-03 09:13:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:13:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:13:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:13:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:13:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:13:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:13:30 INFO imstat:::: Statistics --- 2026-06-03 09:13:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:13:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:13:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:13:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:13:30 INFO imstat:::: -- Median of the pixel values [median]: -1.8675e-05 Jy/beam 2026-06-03 09:13:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73782e-05 Jy/beam 2026-06-03 09:13:30 INFO imstat:::: -- IQR [quartile]: 3.56598e-05 Jy/beam 2026-06-03 09:13:30 INFO imstat:::: -- First quartile [q1]: -3.45364e-05 Jy/beam 2026-06-03 09:13:30 INFO imstat:::: -- Third quartile [q3]: 1.12335e-06 Jy/beam 2026-06-03 09:13:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:13:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:13:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:13:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:13:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:13:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:13:30 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 2026-06-03 09:13:30 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:13:29.831877 End time: 2026-06-03 09:13:29.858498 2026-06-03 09:13:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:13:30 INFO imstat::::casa ########################################## 2026-06-03 09:13:30 INFO phaseshift::::casa ########################################## 2026-06-03 09:13:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:13:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39.968292000deg' ) 2026-06-03 09:13:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:13:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:13:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:13:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:13:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:13:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:13:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:13:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:13:30 INFO MSTransformManager::open Select data 2026-06-03 09:13:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:13:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:13:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39.968292000deg' successfully parsed 2026-06-03 09:13:33 INFO phaseshift::::casa Shift phase center 2026-06-03 09:13:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:13:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:13:29.875191 End time: 2026-06-03 09:13:33.693024 2026-06-03 09:13:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:13:34 INFO phaseshift::::casa ########################################## 2026-06-03 09:13:34 INFO tclean::::casa ########################################## 2026-06-03 09:13:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:13:34 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:13:34 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:13:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:13:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:13:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:13:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:13:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:13:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:13:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:13:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:13:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:13:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:13:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:13:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:13:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027049 2026-06-03 09:13:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:13:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:13:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:13:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:13:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:13:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:13:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:13:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:13:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:13:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:13:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:13:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:13:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:13:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:13:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:13:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:13:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:13:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:13:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:13:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:13:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:13:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:13:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:13:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:13:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:13:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:13:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:13:40 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:13:40 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:13:40 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:13:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:13:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:13:41 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:13:33.740090 End time: 2026-06-03 09:13:40.795714 2026-06-03 09:13:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:13:41 INFO tclean::::casa ########################################## 2026-06-03 09:13:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:13:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:41 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-06-03 09:13:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:13:41 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:13:41 2026****** 2026-06-03 09:13:41 INFO ImageFitter::fit+ 2026-06-03 09:13:41 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:13:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:13:41 INFO ImageFitter::fit+ --- region: 2026-06-03 09:13:41 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:13:41 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:13:41 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:13:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:13:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:13:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:13:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:41 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-06-03 09:13:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:13:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:13:41 INFO imstat::::casa ########################################## 2026-06-03 09:13:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:13:41 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-06-03 09:13:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:13:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:13:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:13:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:13:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:41 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:13:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:13:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:13:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:13:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:13:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:13:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:13:41 INFO imstat:::: Values --- 2026-06-03 09:13:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:13:41 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:13:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:13:41 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-06-03 09:13:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:13:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:13:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:13:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:13:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:13:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:13:41 INFO imstat:::: Statistics --- 2026-06-03 09:13:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:13:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:13:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:13:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:13:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-06-03 09:13:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-06-03 09:13:41 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-06-03 09:13:41 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-06-03 09:13:41 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-06-03 09:13:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:13:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:13:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:13:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:13:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:13:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:13:41 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 2026-06-03 09:13:41 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:13:40.874650 End time: 2026-06-03 09:13:40.903266 2026-06-03 09:13:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:13:41 INFO imstat::::casa ########################################## 2026-06-03 09:13:41 INFO phaseshift::::casa ########################################## 2026-06-03 09:13:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-06-03 09:13:41 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 0.697578292rad' ) 2026-06-03 09:13:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-06-03 09:13:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-06-03 09:13:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-06-03 09:13:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-06-03 09:13:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-06-03 09:13:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-06-03 09:13:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-06-03 09:13:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-06-03 09:13:41 INFO MSTransformManager::open Select data 2026-06-03 09:13:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-06-03 09:13:43 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-06-03 09:13:43 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 0.697578292rad' successfully parsed 2026-06-03 09:13:43 INFO phaseshift::::casa Shift phase center 2026-06-03 09:13:44 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-06-03 09:13:44 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-06-03 09:13:40.919754 End time: 2026-06-03 09:13:43.730566 2026-06-03 09:13:44 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-06-03 09:13:44 INFO phaseshift::::casa ########################################## 2026-06-03 09:13:44 INFO tclean::::casa ########################################## 2026-06-03 09:13:44 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-06-03 09:13:44 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-06-03 09:13:44 INFO tclean::::casa Verifying Input Parameters 2026-06-03 09:13:44 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-06-03 09:13:44 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-06-03 09:13:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:13:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-06-03 09:13:44 INFO SynthesisImagerVi2::defineImage Impars: start 2026-06-03 09:13:44 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-06-03 09:13:44 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-06-03 09:13:44 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.77 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-06-03 09:13:44 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-06-03 09:13:44 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-06-03 09:13:44 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-06-03 09:13:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-06-03 09:13:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026146 2026-06-03 09:13:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:13:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-06-03 09:13:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-06-03 09:13:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-06-03 09:13:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-06-03 09:13:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-06-03 09:13:47 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-06-03 09:13:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-06-03 09:13:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-06-03 09:13:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-06-03 09:13:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-06-03 09:13:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-06-03 09:13:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-06-03 09:13:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-06-03 09:13:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-06-03 09:13:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-06-03 09:13:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-06-03 09:13:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-06-03 09:13:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-06-03 09:13:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-06-03 09:13:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-06-03 09:13:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-06-03 09:13:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-06-03 09:13:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-06-03 09:13:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-06-03 09:13:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-06-03 09:13:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-06-03 09:13:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-06-03 09:13:53 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-06-03 09:13:53 INFO tclean::::casa getSummary call: fullsummary=False 2026-06-03 09:13:53 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-06-03 09:13:54 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-06-03 09:13:54 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-06-03 09:13:55 INFO tclean::::casa Task tclean complete. Start time: 2026-06-03 09:13:43.783512 End time: 2026-06-03 09:13:55.391422 2026-06-03 09:13:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-06-03 09:13:55 INFO tclean::::casa ########################################## 2026-06-03 09:13:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-06-03 09:13:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:55 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) 2026-06-03 09:13:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-06-03 09:13:55 INFO ImageFitter::fit ****** Fit performed at Wed Jun 3 09:13:55 2026****** 2026-06-03 09:13:55 INFO ImageFitter::fit+ 2026-06-03 09:13:55 INFO ImageFitter::fit+ Input parameters --- 2026-06-03 09:13:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-06-03 09:13:55 INFO ImageFitter::fit+ --- region: 2026-06-03 09:13:55 INFO ImageFitter::fit+ --- channel: 0 2026-06-03 09:13:55 INFO ImageFitter::fit+ --- stokes: I 2026-06-03 09:13:55 INFO ImageFitter::fit+ --- mask: 2026-06-03 09:13:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-06-03 09:13:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-06-03 09:13:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-06-03 09:13:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:55 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) 2026-06-03 09:13:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ Position --- 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-06-03 09:13:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-06-03 09:13:55 INFO imstat::::casa ########################################## 2026-06-03 09:13:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-06-03 09:13:55 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 ) 2026-06-03 09:13:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-06-03 09:13:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-06-03 09:13:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-06-03 09:13:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-06-03 09:13:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-06-03 09:13:55 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-06-03 09:13:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-06-03 09:13:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-06-03 09:13:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-06-03 09:13:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-06-03 09:13:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-06-03 09:13:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-06-03 09:13:55 INFO imstat:::: Values --- 2026-06-03 09:13:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-06-03 09:13:55 INFO imstat:::: -- number of points [npts]: 65536 2026-06-03 09:13:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-06-03 09:13:55 INFO imstat:::: -- minimum value [min]: -7.77956e-05 Jy/beam 2026-06-03 09:13:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-06-03 09:13:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-06-03 09:13:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-06-03 09:13:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-06-03 09:13:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-06-03 09:13:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-06-03 09:13:55 INFO imstat:::: Statistics --- 2026-06-03 09:13:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-06-03 09:13:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-06-03 09:13:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-06-03 09:13:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-06-03 09:13:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86648e-05 Jy/beam 2026-06-03 09:13:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73536e-05 Jy/beam 2026-06-03 09:13:55 INFO imstat:::: -- IQR [quartile]: 3.5639e-05 Jy/beam 2026-06-03 09:13:55 INFO imstat:::: -- First quartile [q1]: -3.45152e-05 Jy/beam 2026-06-03 09:13:55 INFO imstat:::: -- Third quartile [q3]: 1.12373e-06 Jy/beam 2026-06-03 09:13:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-06-03 09:13:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-06-03 09:13:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-06-03 09:13:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-06-03 09:13:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-06-03 09:13:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-06-03 09:13:55 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 2026-06-03 09:13:55 INFO imstat::::casa Task imstat complete. Start time: 2026-06-03 09:13:55.468452 End time: 2026-06-03 09:13:55.495574 2026-06-03 09:13:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-06-03 09:13:55 INFO imstat::::casa ########################################## . ---------------------------------------------------------------------- Ran 27 tests in 1468.867s OK Generating XML reports...