2026-01-29 22:34:51 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-01-29 22:34:51 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-01-29 22:34:51 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-01-29 22:34:51 INFO ::casa 2026-01-29 22:34:51 INFO ::casa config values 2026-01-29 22:34:51 INFO ::casa agg = False 2026-01-29 22:34:51 INFO ::casa cachedir = '/home/casatest/.casa' 2026-01-29 22:34:51 INFO ::casa casaconfig_verbose = 1 2026-01-29 22:34:51 INFO ::casa colors = 'Neutral' 2026-01-29 22:34:51 INFO ::casa data_auto_update = False 2026-01-29 22:34:51 INFO ::casa data_update_interval = 1 2026-01-29 22:34:51 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-01-29 22:34:51 INFO ::casa iplog = False 2026-01-29 22:34:51 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/ipython-20260129-223447.log' 2026-01-29 22:34:51 INFO ::casa log2term = True 2026-01-29 22:34:51 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/casa-20260129-223447.log' 2026-01-29 22:34:51 INFO ::casa measures_auto_update = False 2026-01-29 22:34:51 INFO ::casa measures_site = ['https://www.astron.nl/iers/', 'https://go.nrao.edu/iers/'] 2026-01-29 22:34:51 INFO ::casa measures_site_interval = 2 2026-01-29 22:34:51 INFO ::casa measures_update_interval = 1 2026-01-29 22:34:51 INFO ::casa measurespath = '/opt/casa/data/master' 2026-01-29 22:34:51 INFO ::casa nogui = False 2026-01-29 22:34:51 INFO ::casa nologfile = False 2026-01-29 22:34:51 INFO ::casa nologger = True 2026-01-29 22:34:51 INFO ::casa pipeline = False 2026-01-29 22:34:51 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-01-29 22:34:51 INFO ::casa user_site = False 2026-01-29 22:34:51 INFO ::casa 2026-01-29 22:34:51 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-01-29 22:34:51 INFO ::casa measures version : WSRT_Measures_20211217-160001.ztar 2026-01-29 22:34:51 INFO ::casa 2026-01-29 22:34:51 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-01-29 22:34:51 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/01/19/15:15, 2025/12/20/00:00:00 2026-01-29 22:34:51 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/01/19/15:15, 2025/12/20/00:00:00 2026-01-29 22:34:51 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/01/28/15:15, 2026/04/28/00:00:00 2026-01-29 22:34:51 INFO ::casa TAI_UTC (version date, last date in table (UTC)): 2026/01/22/15:15, 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 6.7.5.1 -- Common Astronomy Software Applications [6.7.5.1] 2026-01-29 22:34:51 INFO phaseshift::::casa ########################################## 2026-01-29 22:34:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:34:51 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'} ) 2026-01-29 22:34:51 INFO MSTransformManager::parseMsSpecParams Input file name is /opt/casa/data/casatestdata/unittest/phaseshift/split11.ms 2026-01-29 22:34:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:34:51 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshift11.ms 2026-01-29 22:34:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:34:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:34:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:34:51 INFO MSTransformManager::open Select data 2026-01-29 22:34:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:34:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-01-29 22:34:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 1h27m38.337s +5d25m38.886s' successfully parsed for field 0 2026-01-29 22:34:55 INFO phaseshift::::casa Shift phase center 2026-01-29 22:34:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:34:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:34:51.200438 End time: 2026-01-29 22:34:55.394095 2026-01-29 22:34:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:34:55 INFO phaseshift::::casa ########################################## .2026-01-29 22:34:56 INFO phaseshift::::casa ########################################## 2026-01-29 22:34:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:34:56 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'GALACTIC 19h53m50 40d06m00', '2': 'GALACTIC 22h01m02 40d04m03'} ) 2026-01-29 22:34:56 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-01-29 22:34:56 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:34:56 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-01-29 22:34:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:34:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:34:56 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:34:56 INFO MSTransformManager::open Select data 2026-01-29 22:34:56 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:34:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-01-29 22:34:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 19h53m50 40d06m00' successfully parsed for field 0 2026-01-29 22:34:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 22h01m02 40d04m03' successfully parsed for field 2 2026-01-29 22:34:57 INFO phaseshift::::casa Shift phase center 2026-01-29 22:34:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:34:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:34:55.517613 End time: 2026-01-29 22:34:58.097112 2026-01-29 22:34:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:34:58 INFO phaseshift::::casa ########################################## .2026-01-29 22:34:58 INFO phaseshift::::casa ########################################## 2026-01-29 22:34:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:34:58 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'J2000 19h53m50 40d06m00', '3': 'J2000 19h53m50 40d06m00'} ) 2026-01-29 22:34:58 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-01-29 22:34:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:34:58 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-01-29 22:34:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:34:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:34:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:34:58 INFO MSTransformManager::open Select data 2026-01-29 22:34:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:35:01 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-01-29 22:35:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-01-29 22:35:01 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-01-29 22:35:01 INFO phaseshift::::casa Traceback (most recent call last): 2026-01-29 22:35:01 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-01-29 22:35:01 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-01-29 22:35:01 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-01-29 22:35:01 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-01-29 22:35:01 INFO phaseshift::::casa+ mtlocal.open() 2026-01-29 22:35:01 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-01-29 22:35:01 INFO phaseshift::::casa+ return self._swigobj.open() 2026-01-29 22:35:01 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-01-29 22:35:01 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-01-29 22:35:01 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-01-29 22:35:01 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-01-29 22:35:01 INFO phaseshift::::casa+ RuntimeError: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-01-29 22:35:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:34:58.247523 End time: 2026-01-29 22:35:01.243080 2026-01-29 22:35:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:35:01 INFO phaseshift::::casa ########################################## .2026-01-29 22:35:01 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:35:01 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={'0': 'J2000 19h53m50 40d06m00'} ) 2026-01-29 22:35:01 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-01-29 22:35:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:35:01 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-01-29 22:35:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:35:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:35:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:35:01 INFO MSTransformManager::open Select data 2026-01-29 22:35:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:35:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-01-29 22:35:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-01-29 22:35:04 INFO phaseshift::::casa Shift phase center 2026-01-29 22:35:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:35:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:35:01.386894 End time: 2026-01-29 22:35:05.475971 2026-01-29 22:35:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:35:05 INFO phaseshift::::casa ########################################## .2026-01-29 22:35:06 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:35:06 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='0,2', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'1': 'J2000 19h53m50 40d06m00', '2': 'J2000 22h01m02 40d04m03'} ) 2026-01-29 22:35:06 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-01-29 22:35:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:35:06 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-01-29 22:35:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:35:06 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-01-29 22:35:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:35:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:35:06 INFO MSTransformManager::open Select data 2026-01-29 22:35:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:35:06 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-01-29 22:35:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-01-29 22:35:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 1 2026-01-29 22:35:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 22h01m02 40d04m03' successfully parsed for field 2 2026-01-29 22:35:10 INFO phaseshift::::casa Shift phase center 2026-01-29 22:35:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:35:11 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:35:05.669455 End time: 2026-01-29 22:35:10.515557 2026-01-29 22:35:11 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:35:11 INFO phaseshift::::casa ########################################## .2026-01-29 22:35:11 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:35:11 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'} ) 2026-01-29 22:35:11 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-01-29 22:35:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:35:11 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-01-29 22:35:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:35:11 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-01-29 22:35:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:35:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:35:11 INFO MSTransformManager::open Select data 2026-01-29 22:35:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:35:11 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-01-29 22:35:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-01-29 22:35:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m50 40d06m00' successfully parsed for field 0 2026-01-29 22:35:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 22h01m02 40d04m03' successfully parsed for field 2 2026-01-29 22:35:13 INFO phaseshift::::casa Shift phase center 2026-01-29 22:35:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:35:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:35:10.671104 End time: 2026-01-29 22:35:14.176372 2026-01-29 22:35:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:35:14 INFO phaseshift::::casa ########################################## .2026-01-29 22:35:14 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:35:14 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' ) 2026-01-29 22:35:14 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-01-29 22:35:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:35:14 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-01-29 22:35:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:35:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:35:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:35:14 INFO MSTransformManager::open Select data 2026-01-29 22:35:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:35:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:35:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-01-29 22:35:21 INFO phaseshift::::casa Shift phase center 2026-01-29 22:35:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:35:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:35:14.301730 End time: 2026-01-29 22:35:21.952551 2026-01-29 22:35:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:35:22 INFO phaseshift::::casa ########################################## ..2026-01-29 22:35:23 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) Requested JD 0 is outside the range of the IERS (Earth axis data) table. 2026-01-29 22:35:23 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) + Calculations will proceed with less precision ..2026-01-29 22:35:23 SEVERE Error in QuantumHolder::fromString with input string "xxh53m50": Illegal input units or format 2026-01-29 22:35:23 SEVERE + in converting quantity from string 2026-01-29 22:35:23 SEVERE Exception Reported: Empty QuantumHolder argument for asQuantumDouble 2026-01-29 22:35:23 SEVERE Exception Reports: Empty QuantumHolder argument for asQuantumDouble 2026-01-29 22:35:23 SEVERE phaseshift::::casa *** Error measures.direction() failed for phasecenter string: BOGUS xxh53m50 40d06m00 when interpreting parameter 'phasecenter': ...2026-01-29 22:35:26 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:35:26 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='1', observation='', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-01-29 22:35:26 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-01-29 22:35:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:35:26 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-01-29 22:35:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:35:26 INFO MSTransformManager::parseDataSelParams array selection is 1 2026-01-29 22:35:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:35:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:35:26 INFO MSTransformManager::open Select data 2026-01-29 22:35:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:35:26 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-01-29 22:35:26 INFO phaseshift::::casa Traceback (most recent call last): 2026-01-29 22:35:26 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-01-29 22:35:26 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-01-29 22:35:26 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-01-29 22:35:26 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-01-29 22:35:26 INFO phaseshift::::casa+ mtlocal.open() 2026-01-29 22:35:26 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-01-29 22:35:26 INFO phaseshift::::casa+ return self._swigobj.open() 2026-01-29 22:35:26 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-01-29 22:35:26 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-01-29 22:35:26 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-01-29 22:35:26 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-01-29 22:35:26 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-01-29 22:35:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:35:25.596503 End time: 2026-01-29 22:35:25.630865 2026-01-29 22:35:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:35:26 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:26 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:35:26 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='0', observation='', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-01-29 22:35:26 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-01-29 22:35:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:35:26 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-01-29 22:35:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:35:26 INFO MSTransformManager::parseDataSelParams array selection is 0 2026-01-29 22:35:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:35:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:35:26 INFO MSTransformManager::open Select data 2026-01-29 22:35:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:35:28 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-01-29 22:35:28 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-01-29 22:35:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:35:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-01-29 22:35:30 INFO phaseshift::::casa Shift phase center 2026-01-29 22:35:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:35:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:35:25.631856 End time: 2026-01-29 22:35:30.344021 2026-01-29 22:35:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:35:30 INFO phaseshift::::casa ########################################## .2026-01-29 22:35:31 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:35:31 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' ) 2026-01-29 22:35:31 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-01-29 22:35:31 INFO MSTransformManager::parseMsSpecParams Data column is MODEL 2026-01-29 22:35:31 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-01-29 22:35:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:35:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:35:31 WARN MSTransformManager::checkDataColumnsToFill MODEL_DATA column requested but not available in input MS 2026-01-29 22:35:31 INFO MSTransformManager::open Select data 2026-01-29 22:35:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:35:31 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). 2026-01-29 22:35:31 INFO phaseshift::::casa Traceback (most recent call last): 2026-01-29 22:35:31 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-01-29 22:35:31 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'] ) 2026-01-29 22:35:31 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-01-29 22:35:31 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-01-29 22:35:31 INFO phaseshift::::casa+ mtlocal.open() 2026-01-29 22:35:31 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-01-29 22:35:31 INFO phaseshift::::casa+ return self._swigobj.open() 2026-01-29 22:35:31 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-01-29 22:35:31 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-01-29 22:35:31 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-01-29 22:35:31 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-01-29 22:35:31 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). 2026-01-29 22:35:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:35:31.416050 End time: 2026-01-29 22:35:31.445655 2026-01-29 22:35:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:35:31 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:31 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:35:31 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' ) 2026-01-29 22:35:31 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-01-29 22:35:31 INFO MSTransformManager::parseMsSpecParams Data column is DATA 2026-01-29 22:35:31 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-01-29 22:35:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:35:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:35:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:35:31 INFO MSTransformManager::open Select data 2026-01-29 22:35:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:35:34 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-01-29 22:35:34 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-01-29 22:35:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:35:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-01-29 22:35:35 INFO phaseshift::::casa Shift phase center 2026-01-29 22:35:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:35:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:35:31.446800 End time: 2026-01-29 22:35:35.603136 2026-01-29 22:35:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:35:36 INFO phaseshift::::casa ########################################## .2026-01-29 22:35:37 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:35:37 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' ) 2026-01-29 22:35:37 INFO MSTransformManager::parseMsSpecParams Input file name is Itziar_copy.ms 2026-01-29 22:35:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:35:37 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-01-29 22:35:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:35:37 INFO MSTransformManager::parseDataSelParams field selection is 2 2026-01-29 22:35:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:35:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:35:37 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:35:37 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:35:37 INFO MSTransformManager::open Select data 2026-01-29 22:35:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:35:37 INFO MSTransformDataHandler::makeSelection 6125 out of 245000 rows are going to be considered due to the selection criteria. 2026-01-29 22:35:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:35:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 00h00m01 -29d55m40' successfully parsed 2026-01-29 22:35:39 INFO phaseshift::::casa Shift phase center 2026-01-29 22:35:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:35:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:35:36.660071 End time: 2026-01-29 22:35:39.500759 2026-01-29 22:35:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:35:40 INFO phaseshift::::casa ########################################## .2026-01-29 22:35:41 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:35:41 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' ) 2026-01-29 22:35:41 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-01-29 22:35:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:35:41 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-01-29 22:35:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:35:41 INFO MSTransformManager::parseDataSelParams scan intent selection is *FLUX* 2026-01-29 22:35:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:35:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:35:41 INFO MSTransformManager::open Select data 2026-01-29 22:35:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:35:41 INFO MSTransformDataHandler::makeSelection 570 out of 6270 rows are going to be considered due to the selection criteria. 2026-01-29 22:35:43 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-01-29 22:35:43 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-01-29 22:35:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:35:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-01-29 22:35:45 INFO phaseshift::::casa Shift phase center 2026-01-29 22:35:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:35:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:35:40.572298 End time: 2026-01-29 22:35:45.424198 2026-01-29 22:35:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:35:45 INFO phaseshift::::casa ########################################## .2026-01-29 22:35:47 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:35:47 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' ) 2026-01-29 22:35:47 INFO MSTransformManager::parseMsSpecParams Input file name is mms_copy.mms 2026-01-29 22:35:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:35:47 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-01-29 22:35:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:35:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:35:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:35:47 INFO MSTransformManager::open Select data 2026-01-29 22:35:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:35:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:35:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 05h30m48 13d31m48' successfully parsed 2026-01-29 22:35:49 INFO phaseshift::::casa Shift phase center 2026-01-29 22:35:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:35:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:35:46.595569 End time: 2026-01-29 22:35:50.527477 2026-01-29 22:35:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:35:51 INFO phaseshift::::casa ########################################## .2026-01-29 22:35:52 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:35:52 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' ) 2026-01-29 22:35:52 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-01-29 22:35:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:35:52 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-01-29 22:35:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:35:52 INFO MSTransformManager::parseDataSelParams observation selection is 1 2026-01-29 22:35:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:35:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:35:52 INFO MSTransformManager::open Select data 2026-01-29 22:35:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:35:52 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-01-29 22:35:52 INFO phaseshift::::casa Traceback (most recent call last): 2026-01-29 22:35:52 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-01-29 22:35:52 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'] ) 2026-01-29 22:35:52 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-01-29 22:35:52 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-01-29 22:35:52 INFO phaseshift::::casa+ mtlocal.open() 2026-01-29 22:35:52 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-01-29 22:35:52 INFO phaseshift::::casa+ return self._swigobj.open() 2026-01-29 22:35:52 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-01-29 22:35:52 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-01-29 22:35:52 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-01-29 22:35:52 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-01-29 22:35:52 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-01-29 22:35:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:35:51.602718 End time: 2026-01-29 22:35:51.636766 2026-01-29 22:35:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:35:52 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:52 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:35:52 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' ) 2026-01-29 22:35:52 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-01-29 22:35:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:35:52 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-01-29 22:35:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:35:52 INFO MSTransformManager::parseDataSelParams observation selection is 0 2026-01-29 22:35:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:35:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:35:52 INFO MSTransformManager::open Select data 2026-01-29 22:35:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:35:53 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-01-29 22:35:53 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-01-29 22:35:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:35:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-01-29 22:35:55 INFO phaseshift::::casa Shift phase center 2026-01-29 22:35:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:35:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:35:51.637894 End time: 2026-01-29 22:35:55.247588 2026-01-29 22:35:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:35:55 INFO phaseshift::::casa ########################################## .2026-01-29 22:35:57 INFO phaseshift::::casa ########################################## 2026-01-29 22:35:57 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:35:57 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-01-29 22:35:57 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-01-29 22:35:57 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:35:57 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-01-29 22:35:57 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:35:57 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:35:57 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:35:57 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:35:57 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:35:57 INFO MSTransformManager::open Select data 2026-01-29 22:35:57 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:36:00 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:36:00 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-01-29 22:36:00 INFO phaseshift::::casa Shift phase center 2026-01-29 22:36:01 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:36:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:35:56.510950 End time: 2026-01-29 22:36:01.238210 2026-01-29 22:36:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:36:01 INFO phaseshift::::casa ########################################## .2026-01-29 22:36:02 INFO phaseshift::::casa ########################################## 2026-01-29 22:36:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:36:02 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='' ) 2026-01-29 22:36:02 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: phasecenter parameter must be specified 2026-01-29 22:36:02 INFO phaseshift::::casa Traceback (most recent call last): 2026-01-29 22:36:02 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-01-29 22:36:02 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-01-29 22:36:02 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-01-29 22:36:02 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 31, in phaseshift 2026-01-29 22:36:02 INFO phaseshift::::casa+ raise ValueError("phasecenter parameter must be specified") 2026-01-29 22:36:02 INFO phaseshift::::casa+ ValueError: phasecenter parameter must be specified 2026-01-29 22:36:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:36:02.395109 End time: 2026-01-29 22:36:02.396270 2026-01-29 22:36:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:36:02 INFO phaseshift::::casa ########################################## 2026-01-29 22:36:02 INFO phaseshift::::casa ########################################## 2026-01-29 22:36:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:36:02 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' ) 2026-01-29 22:36:02 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-01-29 22:36:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:36:02 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-01-29 22:36:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:36:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:36:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:36:02 INFO MSTransformManager::open Select data 2026-01-29 22:36:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:36:10 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-01-29 22:36:10 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-01-29 22:36:11 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:36:11 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -08d23m35' successfully parsed 2026-01-29 22:36:11 INFO phaseshift::::casa Shift phase center 2026-01-29 22:36:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:36:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:36:02.397317 End time: 2026-01-29 22:36:11.767337 2026-01-29 22:36:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:36:12 INFO phaseshift::::casa ########################################## .2026-01-29 22:36:13 INFO phaseshift::::casa ########################################## 2026-01-29 22:36:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:36:13 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='00h06m14 -08d23m35' ) 2026-01-29 22:36:13 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-01-29 22:36:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:36:13 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-01-29 22:36:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:36:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:36:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:36:13 INFO MSTransformManager::open Select data 2026-01-29 22:36:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:36:15 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-01-29 22:36:15 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-01-29 22:36:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:36:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center '00h06m14 -08d23m35' successfully parsed 2026-01-29 22:36:18 INFO phaseshift::::casa Shift phase center 2026-01-29 22:36:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:36:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:36:12.922204 End time: 2026-01-29 22:36:18.328908 2026-01-29 22:36:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:36:18 INFO phaseshift::::casa ########################################## .2026-01-29 22:36:19 INFO phaseshift::::casa ########################################## 2026-01-29 22:36:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:36:19 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='post_phaseshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-01-29 22:36:19 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-01-29 22:36:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:36:19 INFO MSTransformManager::parseMsSpecParams Output file name is post_phaseshift.ms 2026-01-29 22:36:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:36:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:36:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:36:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:36:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:36:19 INFO MSTransformManager::open Select data 2026-01-29 22:36:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:36:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:36:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-01-29 22:36:23 INFO phaseshift::::casa Shift phase center 2026-01-29 22:36:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:36:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:36:19.475008 End time: 2026-01-29 22:36:24.964710 2026-01-29 22:36:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:36:25 INFO phaseshift::::casa ########################################## 2026-01-29 22:36:25 INFO tclean::::casa ########################################## 2026-01-29 22:36:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:36:25 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 ) 2026-01-29 22:36:25 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:36:25 INFO SynthesisImagerVi2::selectData MS : datacopy.ms | [Opened in readonly mode] 2026-01-29 22:36:25 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-01-29 22:36:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-01-29 22:36:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-01-29 22:36:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:36:25 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-01-29 22:36:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_pre] with ftmachine : wprojectft 2026-01-29 22:36:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.67 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:36:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:36:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_pre] : hogbom 2026-01-29 22:36:25 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:36:26 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-01-29 22:36:26 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-01-29 22:36:26 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-01-29 22:36:26 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-01-29 22:36:43 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 2026-01-29 22:36:43 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 2026-01-29 22:36:45 INFO SIImageStore::calcSensitivity [im2_pre] Theoretical sensitivity (Jy/bm):0.00204403 2026-01-29 22:36:45 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.116883 2026-01-29 22:36:45 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-01-29 22:36:45 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:36:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 0%....10....20....30....40....50....60....70....80....90....100% 2026-01-29 22:37:33 INFO task_tclean::SDAlgorithmBase::restore [im2_pre] : Restoring model image. 2026-01-29 22:37:33 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. 2026-01-29 22:37:35 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-01-29 22:37:35 INFO tclean::::casa Searching for images with prefix 'im2_pre'... Found these, writing history into them: ['im2_pre.pb', 'im2_pre.psf', 'im2_pre.residual', 'im2_pre.sumwt', 'im2_pre.image', 'im2_pre.model'] 2026-01-29 22:37:36 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:36:25.092006 End time: 2026-01-29 22:37:36.327056 2026-01-29 22:37:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:37:36 INFO tclean::::casa ########################################## 2026-01-29 22:37:36 INFO tclean::::casa ########################################## 2026-01-29 22:37:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:37:36 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift', imsize=2048, cell='5arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:37:36 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:37:36 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-01-29 22:37:36 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-01-29 22:37:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-01-29 22:37:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-01-29 22:37:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:37:37 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-01-29 22:37:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift] with ftmachine : wprojectft 2026-01-29 22:37:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.65 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:37:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:37:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift] : hogbom 2026-01-29 22:37:37 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:37:38 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-01-29 22:37:38 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-01-29 22:37:38 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-01-29 22:37:38 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-01-29 22:37:53 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-01-29 22:37:53 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 2026-01-29 22:37:57 INFO SIImageStore::calcSensitivity [im2_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00204403 2026-01-29 22:37:57 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.114815 2026-01-29 22:37:57 INFO SIImageStore::printBeamSet Beam : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-01-29 22:37:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:37:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:38:01 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift] : Restoring model image. 2026-01-29 22:38:01 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. 2026-01-29 22:38:01 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-01-29 22:38:01 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift'... Found these, writing history into them: ['im2_post_phaseshift.pb', 'im2_post_phaseshift.model', 'im2_post_phaseshift.residual', 'im2_post_phaseshift.psf', 'im2_post_phaseshift.image', 'im2_post_phaseshift.sumwt'] 2026-01-29 22:38:04 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:37:36.370210 End time: 2026-01-29 22:38:04.402890 2026-01-29 22:38:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:38:04 INFO tclean::::casa ########################################## 2026-01-29 22:38:04 INFO tclean::::casa ########################################## 2026-01-29 22:38:04 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:38:04 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 ) 2026-01-29 22:38:04 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:38:04 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-01-29 22:38:04 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-01-29 22:38:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-01-29 22:38:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-01-29 22:38:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:38:05 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-01-29 22:38:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift_tclean_phasecenter] with ftmachine : wprojectft 2026-01-29 22:38:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.65 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:38:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:38:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift_tclean_phasecenter] : hogbom 2026-01-29 22:38:05 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:38:05 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-01-29 22:38:05 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-01-29 22:38:05 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-01-29 22:38:05 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-01-29 22:38:20 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 2026-01-29 22:38:20 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 2026-01-29 22:38:23 INFO SIImageStore::calcSensitivity [im2_post_phaseshift_tclean_phasecenter] Theoretical sensitivity (Jy/bm):0.00204403 2026-01-29 22:38:23 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.124871 2026-01-29 22:38:23 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-01-29 22:38:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:38:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:38:28 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift_tclean_phasecenter] : Restoring model image. 2026-01-29 22:38:28 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. 2026-01-29 22:38:30 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-01-29 22:38:30 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift_tclean_phasecenter'... Found these, writing history into them: ['im2_post_phaseshift_tclean_phasecenter.pb', 'im2_post_phaseshift_tclean_phasecenter.residual', 'im2_post_phaseshift_tclean_phasecenter.image', 'im2_post_phaseshift_tclean_phasecenter.psf', 'im2_post_phaseshift_tclean_phasecenter.model', 'im2_post_phaseshift_tclean_phasecenter.sumwt'] 2026-01-29 22:38:31 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:38:04.437698 End time: 2026-01-29 22:38:31.074395 2026-01-29 22:38:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:38:31 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} .2026-01-29 22:38:32 INFO phaseshift::::casa ########################################## 2026-01-29 22:38:32 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:38:32 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' ) 2026-01-29 22:38:32 INFO MSTransformManager::parseMsSpecParams Input file name is ngc_copy.ms 2026-01-29 22:38:32 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:38:32 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-01-29 22:38:32 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:38:32 INFO MSTransformManager::parseDataSelParams spw selection is 1 2026-01-29 22:38:32 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:38:32 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:38:32 INFO MSTransformManager::initDataSelectionParams Selected SPWs Ids are Axis Lengths: [1, 4] (NB: Matrix in Row/Column order) 2026-01-29 22:38:32 INFO MSTransformManager::initDataSelectionParams+ [1, 0, 4, 1] 2026-01-29 22:38:32 INFO MSTransformManager::open Select data 2026-01-29 22:38:32 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:38:32 INFO MSTransformDataHandler::makeSelection 13338 out of 26676 rows are going to be considered due to the selection criteria. 2026-01-29 22:38:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:38:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 23h11m54 61d10m54' successfully parsed 2026-01-29 22:38:34 INFO phaseshift::::casa Shift phase center 2026-01-29 22:38:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:38:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:38:32.311602 End time: 2026-01-29 22:38:34.673290 2026-01-29 22:38:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:38:35 INFO phaseshift::::casa ########################################## .2026-01-29 22:38:36 INFO phaseshift::::casa ########################################## 2026-01-29 22:38:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:38:36 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-01-29 22:38:36 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-01-29 22:38:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:38:36 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-01-29 22:38:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:38:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:38:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:38:36 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:38:36 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:38:36 INFO MSTransformManager::open Select data 2026-01-29 22:38:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:38:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:38:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-01-29 22:38:38 INFO phaseshift::::casa Shift phase center 2026-01-29 22:38:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:38:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:38:35.742195 End time: 2026-01-29 22:38:39.251955 2026-01-29 22:38:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:38:39 INFO phaseshift::::casa ########################################## .2026-01-29 22:38:40 INFO phaseshift::::casa ########################################## 2026-01-29 22:38:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:38:40 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='0', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-01-29 22:38:40 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:38:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:38:40 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:38:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:38:40 INFO MSTransformManager::parseDataSelParams field selection is 0 2026-01-29 22:38:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:38:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:38:40 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:38:40 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:38:40 INFO MSTransformManager::open Select data 2026-01-29 22:38:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:38:40 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-01-29 22:38:42 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:38:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-01-29 22:38:42 INFO phaseshift::::casa Shift phase center 2026-01-29 22:38:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:38:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:38:39.719600 End time: 2026-01-29 22:38:42.855172 2026-01-29 22:38:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:38:43 INFO phaseshift::::casa ########################################## 2026-01-29 22:38:43 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-01-29 22:38:43 INFO tclean::::casa ########################################## 2026-01-29 22:38:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:38:43 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:38:43 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:38:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:38:43 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-01-29 22:38:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:38:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:38:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:38:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-01-29 22:38:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:38:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.65 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:38:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:38:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:38:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:38:44 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-01-29 22:38:44 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.033285 2026-01-29 22:38:44 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-01-29 22:38:44 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:38:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:38:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:38:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:38:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:38:47 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:38:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:38:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-01-29 22:38:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:38:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:38:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:38:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:38:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:38:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-01-29 22:38:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-01-29 22:38:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:38:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:38:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-01-29 22:38:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:38:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-01-29 22:38:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-01-29 22:38:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:38:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:38:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-01-29 22:38:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:38:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-01-29 22:38:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-01-29 22:38:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:38:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:38:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-01-29 22:38:57 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:38:57 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:38:57 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:38:57 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-01-29 22:38:58 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:38:58 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:38:42.941823 End time: 2026-01-29 22:38:58.338836 2026-01-29 22:38:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:38:58 INFO tclean::::casa ########################################## 2026-01-29 22:38:58 INFO imstat::::casa ########################################## 2026-01-29 22:38:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:38:58 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:38:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:38:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:38:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:38:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:38:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:38:58 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) 2026-01-29 22:38:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:38:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:38:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:38:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:38:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-01-29 22:38:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-01-29 22:38:58 INFO imstat:::: Values --- 2026-01-29 22:38:58 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-01-29 22:38:58 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:38:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:38:58 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-01-29 22:38:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-01-29 22:38:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-01-29 22:38:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-01-29 22:38:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-01-29 22:38:58 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-01-29 22:38:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-01-29 22:38:58 INFO imstat:::: Statistics --- 2026-01-29 22:38:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-01-29 22:38:58 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-01-29 22:38:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-01-29 22:38:58 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-01-29 22:38:58 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-01-29 22:38:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-01-29 22:38:58 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-01-29 22:38:58 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-01-29 22:38:58 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-01-29 22:38:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:38:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:38:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:38:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:38:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:38:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:38:58 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 2026-01-29 22:38:58 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:38:58.368375 End time: 2026-01-29 22:38:58.424724 2026-01-29 22:38:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:38:58 INFO imstat::::casa ########################################## 2026-01-29 22:38:58 INFO phaseshift::::casa ########################################## 2026-01-29 22:38:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:38:58 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' ) 2026-01-29 22:38:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:38:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:38:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:38:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:38:58 INFO MSTransformManager::parseDataSelParams field selection is fake 2026-01-29 22:38:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:38:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:38:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:38:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:38:58 INFO MSTransformManager::open Select data 2026-01-29 22:38:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:38:58 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-01-29 22:39:00 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:39:00 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-01-29 22:39:00 INFO phaseshift::::casa Shift phase center 2026-01-29 22:39:01 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:39:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:38:58.442809 End time: 2026-01-29 22:39:00.932879 2026-01-29 22:39:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:39:01 INFO phaseshift::::casa ########################################## 2026-01-29 22:39:01 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-01-29 22:39:01 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-01-29 22:39:01 INFO tclean::::casa ########################################## 2026-01-29 22:39:01 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:39:01 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:39:01 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:39:01 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:39:01 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-01-29 22:39:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:39:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:39:01 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:39:01 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-01-29 22:39:01 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:39:01 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.65 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:39:01 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:39:01 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:39:01 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:39:02 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-01-29 22:39:02 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024614 2026-01-29 22:39:02 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-01-29 22:39:02 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:39:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:39:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:39:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:39:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:39:04 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:39:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:39:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-01-29 22:39:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:39:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:39:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:39:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:39:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:39:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-01-29 22:39:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-01-29 22:39:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:39:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:39:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-01-29 22:39:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:39:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-01-29 22:39:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-01-29 22:39:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:39:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:39:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-01-29 22:39:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:39:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-01-29 22:39:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-01-29 22:39:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:39:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:39:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-01-29 22:39:11 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:39:11 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:39:11 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:39:12 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-01-29 22:39:12 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:39:13 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:39:01.019919 End time: 2026-01-29 22:39:13.297056 2026-01-29 22:39:13 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:39:13 INFO tclean::::casa ########################################## 2026-01-29 22:39:13 INFO imstat::::casa ########################################## 2026-01-29 22:39:13 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:39:13 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:39:13 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:39:13 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:39:13 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:39:13 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:39:13 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:39:13 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) 2026-01-29 22:39:13 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:39:13 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:39:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:39:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:39:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-01-29 22:39:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-01-29 22:39:13 INFO imstat:::: Values --- 2026-01-29 22:39:13 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-01-29 22:39:13 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:39:13 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:39:13 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-01-29 22:39:13 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-01-29 22:39:13 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-01-29 22:39:13 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-01-29 22:39:13 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-01-29 22:39:13 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-01-29 22:39:13 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-01-29 22:39:13 INFO imstat:::: Statistics --- 2026-01-29 22:39:13 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-01-29 22:39:13 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-01-29 22:39:13 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-01-29 22:39:13 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-01-29 22:39:13 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-01-29 22:39:13 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-01-29 22:39:13 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-01-29 22:39:13 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-01-29 22:39:13 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-01-29 22:39:13 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:39:13 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:39:13 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:39:13 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:39:13 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:39:13 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:39:13 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 2026-01-29 22:39:13 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:39:13.301582 End time: 2026-01-29 22:39:13.353130 2026-01-29 22:39:13 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:39:13 INFO imstat::::casa ########################################## 2026-01-29 22:39:13 INFO phaseshift::::casa ########################################## 2026-01-29 22:39:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:39:13 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-01-29 22:39:13 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:39:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:39:13 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:39:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:39:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:39:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:39:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:39:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:39:13 INFO MSTransformManager::open Select data 2026-01-29 22:39:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:39:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:39:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-01-29 22:39:16 INFO phaseshift::::casa Shift phase center 2026-01-29 22:39:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:39:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:39:13.370796 End time: 2026-01-29 22:39:16.847444 2026-01-29 22:39:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:39:17 INFO phaseshift::::casa ########################################## 2026-01-29 22:39:17 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-01-29 22:39:17 INFO tclean::::casa ########################################## 2026-01-29 22:39:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:39:17 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:39:17 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:39:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:39:17 INFO SynthesisImagerVi2::selectData NRows selected : 7020 2026-01-29 22:39:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:39:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:39:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:39:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:39:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:39:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.65 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:39:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:39:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:39:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:39:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00843949 2026-01-29 22:39:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022684 2026-01-29 22:39:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-01-29 22:39:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:39:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:39:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:39:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:39:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:39:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:39:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6069034934043884, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:39:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.606903, CycleNiter=20, Gain=0.3 2026-01-29 22:39:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:39:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:39:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:39:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:39:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07140088081359863, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:39:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0714009, CycleNiter=14, Gain=0.3 2026-01-29 22:39:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-01-29 22:39:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:39:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:39:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-01-29 22:39:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00840018317103386, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:39:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00840018, CycleNiter=8, Gain=0.3 2026-01-29 22:39:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-01-29 22:39:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:39:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:39:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814189, over full image : 0.00814189 2026-01-29 22:39:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009882674785330892, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:39:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000988267, CycleNiter=2, Gain=0.3 2026-01-29 22:39:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814189->0.00279267, Reached cycleniter. 2026-01-29 22:39:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:39:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:39:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0027928, over full image : 0.0027928 2026-01-29 22:39:23 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:39:23 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:39:23 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:39:23 INFO SIImageStore::restore Beam for chan : 0 : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-01-29 22:39:24 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:39:25 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:39:17.027248 End time: 2026-01-29 22:39:25.476081 2026-01-29 22:39:25 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:39:25 INFO tclean::::casa ########################################## 2026-01-29 22:39:25 INFO imstat::::casa ########################################## 2026-01-29 22:39:25 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:39:25 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 ) 2026-01-29 22:39:25 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:39:25 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:39:25 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:39:25 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:39:26 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:39:26 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) 2026-01-29 22:39:26 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:39:26 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:39:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:39:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:39:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 999981604.64Hz 2026-01-29 22:39:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 999981604.64Hz 2026-01-29 22:39:26 INFO imstat:::: Values --- 2026-01-29 22:39:26 INFO imstat:::: -- flux density [flux]: 4.99444 Jy 2026-01-29 22:39:26 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:39:26 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:39:26 INFO imstat:::: -- minimum value [min]: -9.70533e-05 Jy/beam 2026-01-29 22:39:26 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-01-29 22:39:26 INFO imstat:::: -- position of min value (pixel) [minpos]: [158, 70, 0, 0] 2026-01-29 22:39:26 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981604.64Hz 2026-01-29 22:39:26 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:29.120, +39.58.47.882, I, 999981604.64Hz 2026-01-29 22:39:26 INFO imstat:::: -- Sum of pixel values [sum]: 610.203 Jy/beam 2026-01-29 22:39:26 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1527.26 Jy/beam.Jy/beam 2026-01-29 22:39:26 INFO imstat:::: Statistics --- 2026-01-29 22:39:26 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00931096 Jy/beam 2026-01-29 22:39:26 INFO imstat:::: -- Variance of the pixel values : 0.0232178 Jy/beam 2026-01-29 22:39:26 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152374 Jy/beam 2026-01-29 22:39:26 INFO imstat:::: -- Root mean square [rms]: 0.152657 Jy/beam 2026-01-29 22:39:26 INFO imstat:::: -- Median of the pixel values [median]: -1.85752e-05 Jy/beam 2026-01-29 22:39:26 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.83975e-05 Jy/beam 2026-01-29 22:39:26 INFO imstat:::: -- IQR [quartile]: 3.74524e-05 Jy/beam 2026-01-29 22:39:26 INFO imstat:::: -- First quartile [q1]: -3.53147e-05 Jy/beam 2026-01-29 22:39:26 INFO imstat:::: -- Third quartile [q3]: 2.13765e-06 Jy/beam 2026-01-29 22:39:26 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:39:26 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:39:26 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:39:26 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:39:26 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:39:26 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:39:26 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 2026-01-29 22:39:26 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:39:25.481582 End time: 2026-01-29 22:39:25.536937 2026-01-29 22:39:26 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:39:26 INFO imstat::::casa ########################################## 2026-01-29 22:39:26 INFO phaseshift::::casa ########################################## 2026-01-29 22:39:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:39:26 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' ) 2026-01-29 22:39:26 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:39:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:39:26 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:39:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:39:26 INFO MSTransformManager::parseDataSelParams field selection is 1 2026-01-29 22:39:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:39:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:39:26 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:39:26 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:39:26 INFO MSTransformManager::open Select data 2026-01-29 22:39:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:39:26 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-01-29 22:39:28 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:39:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-01-29 22:39:28 INFO phaseshift::::casa Shift phase center 2026-01-29 22:39:29 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:39:29 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:39:25.561814 End time: 2026-01-29 22:39:28.682732 2026-01-29 22:39:29 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:39:29 INFO phaseshift::::casa ########################################## 2026-01-29 22:39:29 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-01-29 22:39:29 INFO tclean::::casa ########################################## 2026-01-29 22:39:29 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:39:29 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 ) 2026-01-29 22:39:29 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:39:29 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:39:29 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-01-29 22:39:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:39:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:39:29 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:39:29 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-01-29 22:39:29 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:39:29 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.65 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:39:29 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:39:29 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:39:29 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:39:30 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-01-29 22:39:30 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023132 2026-01-29 22:39:30 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-01-29 22:39:30 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:39:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:39:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-01-29 22:39:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:39:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:39:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-01-29 22:39:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:39:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-01-29 22:39:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-01-29 22:39:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:39:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:39:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-01-29 22:39:32 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:39:32 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:39:32 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:39:32 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-01-29 22:39:32 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:39:33 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:39:28.790208 End time: 2026-01-29 22:39:32.872749 2026-01-29 22:39:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:39:33 INFO tclean::::casa ########################################## 2026-01-29 22:39:33 INFO imstat::::casa ########################################## 2026-01-29 22:39:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:39:33 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 ) 2026-01-29 22:39:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:39:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:39:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:39:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:39:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:39:33 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) 2026-01-29 22:39:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:39:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:39:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:39:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:39:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-01-29 22:39:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-01-29 22:39:33 INFO imstat:::: Values --- 2026-01-29 22:39:33 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-01-29 22:39:33 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:39:33 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-01-29 22:39:33 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-01-29 22:39:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-01-29 22:39:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-01-29 22:39:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-01-29 22:39:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-01-29 22:39:33 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-01-29 22:39:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-01-29 22:39:33 INFO imstat:::: Statistics --- 2026-01-29 22:39:33 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-01-29 22:39:33 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-01-29 22:39:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-01-29 22:39:33 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-01-29 22:39:33 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-01-29 22:39:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-01-29 22:39:33 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-01-29 22:39:33 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-01-29 22:39:33 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-01-29 22:39:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:39:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:39:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:39:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:39:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:39:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:39:33 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 2026-01-29 22:39:33 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:39:32.877656 End time: 2026-01-29 22:39:32.929780 2026-01-29 22:39:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:39:33 INFO imstat::::casa ########################################## 2026-01-29 22:39:33 INFO phaseshift::::casa ########################################## 2026-01-29 22:39:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:39:33 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' ) 2026-01-29 22:39:33 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:39:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:39:33 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:39:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:39:33 INFO MSTransformManager::parseDataSelParams field selection is pretend 2026-01-29 22:39:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:39:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:39:33 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:39:33 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:39:33 INFO MSTransformManager::open Select data 2026-01-29 22:39:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:39:33 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-01-29 22:39:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:39:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-01-29 22:39:35 INFO phaseshift::::casa Shift phase center 2026-01-29 22:39:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:39:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:39:32.948594 End time: 2026-01-29 22:39:34.992830 2026-01-29 22:39:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:39:35 INFO phaseshift::::casa ########################################## 2026-01-29 22:39:35 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-01-29 22:39:35 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-01-29 22:39:35 INFO tclean::::casa ########################################## 2026-01-29 22:39:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:39:35 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:39:35 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:39:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:39:35 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-01-29 22:39:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:39:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:39:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:39:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-01-29 22:39:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:39:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.65 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:39:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:39:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:39:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:39:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-01-29 22:39:37 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02882 2026-01-29 22:39:37 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-01-29 22:39:37 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:39:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:39:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-01-29 22:39:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:39:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:39:42 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-01-29 22:39:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:39:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-01-29 22:39:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-01-29 22:39:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:39:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:39:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-01-29 22:39:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:39:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:39:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:39:47 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-01-29 22:39:47 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:39:49 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:39:35.087896 End time: 2026-01-29 22:39:48.786940 2026-01-29 22:39:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:39:49 INFO tclean::::casa ########################################## 2026-01-29 22:39:49 INFO imstat::::casa ########################################## 2026-01-29 22:39:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:39:49 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 ) 2026-01-29 22:39:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:39:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:39:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:39:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:39:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:39:49 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) 2026-01-29 22:39:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:39:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:39:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:39:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:39:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-01-29 22:39:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-01-29 22:39:49 INFO imstat:::: Values --- 2026-01-29 22:39:49 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-01-29 22:39:49 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:39:49 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-01-29 22:39:49 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-01-29 22:39:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-01-29 22:39:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-01-29 22:39:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-01-29 22:39:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-01-29 22:39:49 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-01-29 22:39:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-01-29 22:39:49 INFO imstat:::: Statistics --- 2026-01-29 22:39:49 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-01-29 22:39:49 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-01-29 22:39:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-01-29 22:39:49 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-01-29 22:39:49 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-01-29 22:39:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-01-29 22:39:49 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-01-29 22:39:49 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-01-29 22:39:49 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-01-29 22:39:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:39:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:39:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:39:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:39:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:39:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:39:49 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 2026-01-29 22:39:49 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:39:48.792111 End time: 2026-01-29 22:39:48.835058 2026-01-29 22:39:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:39:49 INFO imstat::::casa ########################################## .2026-01-29 22:39:49 INFO tclean::::casa ########################################## 2026-01-29 22:39:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:39:49 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 ) 2026-01-29 22:39:49 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:39:49 INFO SynthesisImagerVi2::selectData MS : sim_data.ms | [Opened in readonly mode] 2026-01-29 22:39:49 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:39:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-01-29 22:39:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-01-29 22:39:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:39:49 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [9.99981e+08] at [0] with increment [1e+08] 2026-01-29 22:39:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_orig] with ftmachine : wprojectft 2026-01-29 22:39:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.65 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:39:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:39:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_orig] : hogbom 2026-01-29 22:39:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:39:50 INFO task_tclean::WPConvFunc::findConvFunction W projection using 128 planes 2026-01-29 22:39:50 INFO task_tclean::WPConvFunc::findConvFunction Using maximum possible W = 6445.78 (wavelengths) 2026-01-29 22:39:50 INFO task_tclean::WPConvFunc::findConvFunction Typical wavelength = 0.299799 (m) 2026-01-29 22:39:50 INFO task_tclean::WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.399639 wavelengths per pixel 2026-01-29 22:40:06 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 2026-01-29 22:40:06 INFO task_tclean::WPConvFunc::findConvFunction Memory used in gridding function = 14 MB from maximum 64265 MB 2026-01-29 22:40:09 INFO task_tclean::SIImageStore::calcSensitivity [im_orig] Theoretical sensitivity (Jy/bm):0.00889437 2026-01-29 22:40:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.126255 2026-01-29 22:40:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-01-29 22:40:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:40:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:40:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 4.94899 2026-01-29 22:40:13 INFO SynthesisDeconvolver::setupMask [im_orig] Initializing new mask to 1.0 for the full image 2026-01-29 22:40:13 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 % ] 2026-01-29 22:40:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 4.94899, over full image : 4.94899 2026-01-29 22:40:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.5971387624740601, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:40:13 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.597139, CycleNiter=20, Gain=0.3 2026-01-29 22:40:14 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=0->4.6028, peakres=4.94899->0.435227, Reached cyclethreshold. 2026-01-29 22:40:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 7 iterations. 2026-01-29 22:40:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:40:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.45574, over full image : 0.45574 2026-01-29 22:40:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 13, 'cyclethreshold': 0.05498892068862915, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:40:18 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.0549889, CycleNiter=13, Gain=0.3 2026-01-29 22:40:19 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=4.6028->5.02619, peakres=0.45574->0.0435268, Reached cyclethreshold. 2026-01-29 22:40:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 14 iterations. 2026-01-29 22:40:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:40:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0416506, over full image : 0.0416506 2026-01-29 22:40:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 6, 'cyclethreshold': 0.005025505553930998, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:40:22 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.00502551, CycleNiter=6, Gain=0.3 2026-01-29 22:40:23 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->6 [6], model=5.02619->5.04001, peakres=0.0416506->0.0226678, Reached cycleniter. 2026-01-29 22:40:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:40:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:40:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.022671, over full image : 0.022671 2026-01-29 22:40:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:40:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:40:27 INFO SDAlgorithmBase::restore [im_orig] : Restoring model image. 2026-01-29 22:40:28 INFO SIImageStore::restore Beam for chan : 0 : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-01-29 22:40:29 INFO tclean::::casa Searching for images with prefix 'im_orig'... Found these, writing history into them: ['im_orig.residual', 'im_orig.sumwt', 'im_orig.image', 'im_orig.psf', 'im_orig.model', 'im_orig.mask', 'im_orig.pb'] 2026-01-29 22:40:29 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:39:49.108447 End time: 2026-01-29 22:40:29.195634 2026-01-29 22:40:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:40:29 INFO tclean::::casa ########################################## 2026-01-29 22:40:29 INFO imstat::::casa ########################################## 2026-01-29 22:40:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:40:29 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 ) 2026-01-29 22:40:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:40:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:40:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:40:29 INFO imstat::image::statistics Determining stats for image im_orig.image 2026-01-29 22:40:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:40:29 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) 2026-01-29 22:40:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:40:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:40:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:40:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [2047, 2047, 0, 0] 2026-01-29 22:40:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 20:11:05.220, +38.21.11.967, I, 999980841.3Hz 2026-01-29 22:40:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:47:03.322, +42.54.02.996, I, 999980841.3Hz 2026-01-29 22:40:30 INFO imstat:::: Values --- 2026-01-29 22:40:30 INFO imstat:::: -- flux density [flux]: 5.2713 Jy 2026-01-29 22:40:30 INFO imstat:::: -- number of points [npts]: 4.1943e+06 2026-01-29 22:40:30 INFO imstat:::: -- maximum value [max]: 4.97713 Jy/beam 2026-01-29 22:40:30 INFO imstat:::: -- minimum value [min]: -0.022671 Jy/beam 2026-01-29 22:40:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [1509, 773, 0, 0] 2026-01-29 22:40:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [1708, 965, 0, 0] 2026-01-29 22:40:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.302, +40.06.02.372, I, 999980841.3Hz 2026-01-29 22:40:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:51:28.525, +40.31.07.260, I, 999980841.3Hz 2026-01-29 22:40:30 INFO imstat:::: -- Sum of pixel values [sum]: 641.87 Jy/beam 2026-01-29 22:40:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1619.58 Jy/beam.Jy/beam 2026-01-29 22:40:30 INFO imstat:::: Statistics --- 2026-01-29 22:40:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.000153034 Jy/beam 2026-01-29 22:40:30 INFO imstat:::: -- Variance of the pixel values : 0.000386116 Jy/beam 2026-01-29 22:40:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0196498 Jy/beam 2026-01-29 22:40:30 INFO imstat:::: -- Root mean square [rms]: 0.0196504 Jy/beam 2026-01-29 22:40:30 INFO imstat:::: -- Median of the pixel values [median]: 4.61875e-06 Jy/beam 2026-01-29 22:40:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.003161 Jy/beam 2026-01-29 22:40:30 INFO imstat:::: -- IQR [quartile]: 0.00632194 Jy/beam 2026-01-29 22:40:30 INFO imstat:::: -- First quartile [q1]: -0.00315521 Jy/beam 2026-01-29 22:40:30 INFO imstat:::: -- Third quartile [q3]: 0.00316673 Jy/beam 2026-01-29 22:40:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:40:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:40:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:40:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:40:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:40:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:40:30 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 2026-01-29 22:40:30 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:40:29.201008 End time: 2026-01-29 22:40:29.572901 2026-01-29 22:40:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:40:30 INFO imstat::::casa ########################################## 2026-01-29 22:40:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:40:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:40:30 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) 2026-01-29 22:40:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:40:30 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:40:30 2026****** 2026-01-29 22:40:30 INFO ImageFitter::fit+ 2026-01-29 22:40:30 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:40:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_orig.image 2026-01-29 22:40:30 INFO ImageFitter::fit+ --- region: 2026-01-29 22:40:30 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:40:30 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:40:30 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:40:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:40:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:40:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:40:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:40:30 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) 2026-01-29 22:40:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29832 Jy 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00459192 Jy 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85855 Jy 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00458731 Jy 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ Fit on im_orig.image component 0 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.9885 +/- 0.0032 s (0.0367 arcsec along great circle) 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.0594 +/- 0.0281 arcsec 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- ra: 1509.4535 +/- 0.0046 pixels 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- dec: 772.7181 +/- 0.0035 pixels 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.4778 +/- 0.0014 arcmin 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.2915 +/- 0.0011 arcmin 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.42 +/- 0.26 deg 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.70 arcsec 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.54 arcsec 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- position angle: -89.60 deg 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ Component is a point source 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ An upper limit on its size cannot be determined 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.0049 +/- 0.0079 Jy 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- Peak: 5.0102 +/- 0.0046 Jy/beam 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:40:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9808 MHz (29.97982 cm) 2026-01-29 22:40:30 INFO phaseshift::::casa ########################################## 2026-01-29 22:40:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:40:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-01-29 22:40:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:40:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:40:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:40:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:40:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:40:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:40:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:40:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:40:30 INFO MSTransformManager::open Select data 2026-01-29 22:40:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:40:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:40:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-01-29 22:40:32 INFO phaseshift::::casa Shift phase center 2026-01-29 22:40:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:40:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:40:29.656192 End time: 2026-01-29 22:40:35.986563 2026-01-29 22:40:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:40:36 INFO phaseshift::::casa ########################################## 2026-01-29 22:40:36 INFO tclean::::casa ########################################## 2026-01-29 22:40:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:40:36 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:40:36 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:40:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:40:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:40:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:40:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:40:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:40:36 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:40:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:40:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:40:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:40:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:40:36 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:40:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:40:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028362 2026-01-29 22:40:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:40:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:40:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:40:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:40:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:40:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:40:40 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:40:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:40:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:40:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:40:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:40:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:40:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:40:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:40:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:40:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:40:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:40:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:40:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:40:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:40:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:40:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:40:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:40:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:40:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:40:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:40:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:40:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:40:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:40:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:40:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:40:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:40:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:40:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:40:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:40:45 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:40:46 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:40:36.056062 End time: 2026-01-29 22:40:46.055231 2026-01-29 22:40:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:40:46 INFO tclean::::casa ########################################## 2026-01-29 22:40:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:40:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:40:46 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:40:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:40:46 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:40:46 2026****** 2026-01-29 22:40:46 INFO ImageFitter::fit+ 2026-01-29 22:40:46 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:40:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:40:46 INFO ImageFitter::fit+ --- region: 2026-01-29 22:40:46 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:40:46 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:40:46 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:40:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:40:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:40:46 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:40:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:40:46 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:40:46 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:40:46 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:40:46 INFO imstat::::casa ########################################## 2026-01-29 22:40:46 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:40:46 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:40:46 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:40:46 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:40:46 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:40:46 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:40:46 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:40:46 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:40:46 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:40:46 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:40:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:40:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:40:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:40:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:40:46 INFO imstat:::: Values --- 2026-01-29 22:40:46 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:40:46 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:40:46 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:40:46 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-01-29 22:40:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:40:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:40:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:40:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:40:46 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:40:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:40:46 INFO imstat:::: Statistics --- 2026-01-29 22:40:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:40:46 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:40:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:40:46 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:40:46 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-01-29 22:40:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-01-29 22:40:46 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-01-29 22:40:46 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-01-29 22:40:46 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-01-29 22:40:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:40:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:40:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:40:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:40:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:40:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:40:46 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-01-29 22:40:46 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:40:46.138205 End time: 2026-01-29 22:40:46.168337 2026-01-29 22:40:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:40:46 INFO imstat::::casa ########################################## 2026-01-29 22:40:46 INFO phaseshift::::casa ########################################## 2026-01-29 22:40:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:40:46 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 02:40:24.0000' ) 2026-01-29 22:40:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:40:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:40:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:40:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:40:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:40:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:40:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:40:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:40:46 INFO MSTransformManager::open Select data 2026-01-29 22:40:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:40:50 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 ".". 2026-01-29 22:40:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 02:40:24.0000' successfully parsed 2026-01-29 22:40:50 INFO phaseshift::::casa Shift phase center 2026-01-29 22:40:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:40:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:40:46.187535 End time: 2026-01-29 22:40:50.455613 2026-01-29 22:40:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:40:50 INFO phaseshift::::casa ########################################## 2026-01-29 22:40:50 INFO tclean::::casa ########################################## 2026-01-29 22:40:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:40:50 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 ) 2026-01-29 22:40:50 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:40:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:40:51 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:40:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:40:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:40:51 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:40:51 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:40:51 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:40:51 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:40:51 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:40:51 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:40:51 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:40:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:40:52 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026428 2026-01-29 22:40:52 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:40:52 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:40:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:40:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:40:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:40:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:40:55 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:40:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:40:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:40:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:40:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:40:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:41:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:41:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:41:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:41:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:41:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:41:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:41:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:41:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:41:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:41:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:41:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:41:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:41:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:41:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:41:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:41:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:41:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:41:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:41:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:41:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:41:06 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:41:07 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:40:50.488278 End time: 2026-01-29 22:41:06.872415 2026-01-29 22:41:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:41:07 INFO tclean::::casa ########################################## 2026-01-29 22:41:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:41:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:41:07 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) 2026-01-29 22:41:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:41:07 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:41:07 2026****** 2026-01-29 22:41:07 INFO ImageFitter::fit+ 2026-01-29 22:41:07 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:41:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:41:07 INFO ImageFitter::fit+ --- region: 2026-01-29 22:41:07 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:41:07 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:41:07 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:41:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:41:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:41:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:41:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:41:07 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) 2026-01-29 22:41:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:41:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:41:07 INFO imstat::::casa ########################################## 2026-01-29 22:41:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:41:07 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 ) 2026-01-29 22:41:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:41:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:41:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:41:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:41:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:41:07 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) 2026-01-29 22:41:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:41:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:41:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:41:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:41:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:41:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:41:07 INFO imstat:::: Values --- 2026-01-29 22:41:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:41:07 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:41:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:41:07 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-01-29 22:41:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:41:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:41:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:41:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:41:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:41:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:41:07 INFO imstat:::: Statistics --- 2026-01-29 22:41:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:41:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:41:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:41:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:41:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-01-29 22:41:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-01-29 22:41:07 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-01-29 22:41:07 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-01-29 22:41:07 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-01-29 22:41:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:41:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:41:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:41:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:41:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:41:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:41:07 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 2026-01-29 22:41:07 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:41:06.956423 End time: 2026-01-29 22:41:06.985368 2026-01-29 22:41:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:41:07 INFO imstat::::casa ########################################## 2026-01-29 22:41:07 INFO phaseshift::::casa ########################################## 2026-01-29 22:41:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:41:07 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.100000000deg' ) 2026-01-29 22:41:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:41:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:41:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:41:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:41:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:41:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:41:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:41:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:41:07 INFO MSTransformManager::open Select data 2026-01-29 22:41:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:41:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:41:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.100000000deg' successfully parsed 2026-01-29 22:41:10 INFO phaseshift::::casa Shift phase center 2026-01-29 22:41:11 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:41:11 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:41:07.004270 End time: 2026-01-29 22:41:10.840779 2026-01-29 22:41:11 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:41:11 INFO phaseshift::::casa ########################################## 2026-01-29 22:41:11 INFO tclean::::casa ########################################## 2026-01-29 22:41:11 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:41:11 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 ) 2026-01-29 22:41:11 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:41:11 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:41:11 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:41:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:41:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:41:11 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:41:11 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:41:11 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:41:11 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:41:11 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:41:11 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:41:11 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:41:12 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:41:12 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.015736 2026-01-29 22:41:12 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:41:12 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:41:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:41:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:41:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:41:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:41:14 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:41:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:41:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:41:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:41:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:41:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:41:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:41:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:41:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:41:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:41:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:41:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:41:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:41:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:41:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:41:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:41:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:41:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:41:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:41:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:41:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:41:21 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:41:21 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:41:21 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:41:22 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:41:23 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:41:24 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:41:10.896957 End time: 2026-01-29 22:41:23.884456 2026-01-29 22:41:24 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:41:24 INFO tclean::::casa ########################################## 2026-01-29 22:41:24 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:41:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:41:24 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) 2026-01-29 22:41:24 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:41:24 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:41:24 2026****** 2026-01-29 22:41:24 INFO ImageFitter::fit+ 2026-01-29 22:41:24 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:41:24 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:41:24 INFO ImageFitter::fit+ --- region: 2026-01-29 22:41:24 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:41:24 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:41:24 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:41:24 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:41:24 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:41:24 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:41:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:41:24 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:41:24 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:41:24 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:41:24 INFO imstat::::casa ########################################## 2026-01-29 22:41:24 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:41:24 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 ) 2026-01-29 22:41:24 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:41:24 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:41:24 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:41:24 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:41:24 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:41:24 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) 2026-01-29 22:41:24 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:41:24 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:41:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:41:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:41:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:41:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:41:24 INFO imstat:::: Values --- 2026-01-29 22:41:24 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:41:24 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:41:24 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:41:24 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-01-29 22:41:24 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:41:24 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:41:24 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:41:24 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:41:24 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:41:24 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:41:24 INFO imstat:::: Statistics --- 2026-01-29 22:41:24 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:41:24 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:41:24 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:41:24 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:41:24 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-01-29 22:41:24 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-01-29 22:41:24 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-01-29 22:41:24 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-01-29 22:41:24 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-01-29 22:41:24 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:41:24 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:41:24 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:41:24 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:41:24 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:41:24 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:41:24 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 2026-01-29 22:41:24 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:41:23.968747 End time: 2026-01-29 22:41:23.997128 2026-01-29 22:41:24 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:41:24 INFO imstat::::casa ########################################## 2026-01-29 22:41:24 INFO phaseshift::::casa ########################################## 2026-01-29 22:41:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:41:24 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 0.699877030rad' ) 2026-01-29 22:41:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:41:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:41:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:41:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:41:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:41:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:41:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:41:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:41:24 INFO MSTransformManager::open Select data 2026-01-29 22:41:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:41:28 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:41:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 0.699877030rad' successfully parsed 2026-01-29 22:41:28 INFO phaseshift::::casa Shift phase center 2026-01-29 22:41:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:41:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:41:24.015151 End time: 2026-01-29 22:41:28.258921 2026-01-29 22:41:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:41:28 INFO phaseshift::::casa ########################################## 2026-01-29 22:41:28 INFO tclean::::casa ########################################## 2026-01-29 22:41:28 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:41:28 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 ) 2026-01-29 22:41:28 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:41:28 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:41:28 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:41:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:41:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:41:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:41:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:41:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:41:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:41:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:41:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:41:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:41:29 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:41:29 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02864 2026-01-29 22:41:29 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:41:29 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:41:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:41:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:41:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:41:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:41:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:41:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:41:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:41:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:41:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:41:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:41:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:41:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:41:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:41:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:41:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:41:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:41:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:41:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:41:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:41:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:41:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:41:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:41:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:41:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:41:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:41:38 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:41:38 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:41:38 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:41:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:41:39 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:41:40 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:41:28.318292 End time: 2026-01-29 22:41:39.711315 2026-01-29 22:41:40 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:41:40 INFO tclean::::casa ########################################## 2026-01-29 22:41:40 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:41:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:41:40 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) 2026-01-29 22:41:40 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:41:40 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:41:40 2026****** 2026-01-29 22:41:40 INFO ImageFitter::fit+ 2026-01-29 22:41:40 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:41:40 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:41:40 INFO ImageFitter::fit+ --- region: 2026-01-29 22:41:40 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:41:40 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:41:40 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:41:40 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:41:40 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:41:40 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:41:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:41:40 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) 2026-01-29 22:41:40 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:41:40 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:41:40 INFO imstat::::casa ########################################## 2026-01-29 22:41:40 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:41:40 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 ) 2026-01-29 22:41:40 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:41:40 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:41:40 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:41:40 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:41:40 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:41:40 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) 2026-01-29 22:41:40 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:41:40 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:41:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:41:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:41:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:41:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:41:40 INFO imstat:::: Values --- 2026-01-29 22:41:40 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:41:40 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:41:40 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:41:40 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-01-29 22:41:40 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:41:40 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:41:40 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:41:40 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-01-29 22:41:40 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:41:40 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:41:40 INFO imstat:::: Statistics --- 2026-01-29 22:41:40 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:41:40 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:41:40 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:41:40 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:41:40 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-01-29 22:41:40 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-01-29 22:41:40 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-01-29 22:41:40 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-01-29 22:41:40 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-01-29 22:41:40 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:41:40 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:41:40 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:41:40 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:41:40 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:41:40 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:41:40 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 2026-01-29 22:41:40 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:41:39.781836 End time: 2026-01-29 22:41:39.807621 2026-01-29 22:41:40 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:41:40 INFO imstat::::casa ########################################## 2026-01-29 22:41:40 INFO phaseshift::::casa ########################################## 2026-01-29 22:41:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:41:40 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40d06m00' ) 2026-01-29 22:41:40 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:41:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:41:40 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:41:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:41:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:41:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:41:40 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:41:40 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:41:40 INFO MSTransformManager::open Select data 2026-01-29 22:41:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:41:42 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:41:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40d06m00' successfully parsed 2026-01-29 22:41:42 INFO phaseshift::::casa Shift phase center 2026-01-29 22:41:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:41:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:41:39.824439 End time: 2026-01-29 22:41:42.241191 2026-01-29 22:41:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:41:42 INFO phaseshift::::casa ########################################## 2026-01-29 22:41:42 INFO tclean::::casa ########################################## 2026-01-29 22:41:42 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:41:42 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 ) 2026-01-29 22:41:42 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:41:42 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:41:42 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:41:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:41:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:41:42 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:41:42 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:41:42 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:41:42 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:41:42 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:41:42 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:41:42 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:41:43 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:41:43 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028737 2026-01-29 22:41:43 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:41:43 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:41:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:41:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:41:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:41:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:41:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:41:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:41:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:41:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:41:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:41:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:41:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:41:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:41:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:41:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:41:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:41:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:41:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:41:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:41:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:41:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:41:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:41:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:41:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:41:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:41:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:41:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:41:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:41:49 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:41:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:41:50 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:41:51 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:41:42.294485 End time: 2026-01-29 22:41:51.312444 2026-01-29 22:41:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:41:51 INFO tclean::::casa ########################################## 2026-01-29 22:41:51 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:41:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:41:51 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) 2026-01-29 22:41:51 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:41:51 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:41:51 2026****** 2026-01-29 22:41:51 INFO ImageFitter::fit+ 2026-01-29 22:41:51 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:41:51 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:41:51 INFO ImageFitter::fit+ --- region: 2026-01-29 22:41:51 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:41:51 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:41:51 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:41:51 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:41:51 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:41:51 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:41:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:41:51 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) 2026-01-29 22:41:51 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:41:51 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:41:51 INFO imstat::::casa ########################################## 2026-01-29 22:41:51 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:41:51 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 ) 2026-01-29 22:41:51 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:41:51 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:41:51 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:41:51 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:41:51 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:41:51 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:41:51 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:41:51 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:41:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:41:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:41:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:41:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:41:51 INFO imstat:::: Values --- 2026-01-29 22:41:51 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:41:51 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:41:51 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:41:51 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-01-29 22:41:51 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:41:51 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:41:51 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:41:51 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:41:51 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:41:51 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:41:51 INFO imstat:::: Statistics --- 2026-01-29 22:41:51 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:41:51 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:41:51 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:41:51 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:41:51 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-01-29 22:41:51 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-01-29 22:41:51 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-01-29 22:41:51 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-01-29 22:41:51 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-01-29 22:41:51 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:41:51 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:41:51 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:41:51 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:41:51 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:41:51 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:41:51 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 2026-01-29 22:41:51 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:41:51.388335 End time: 2026-01-29 22:41:51.415079 2026-01-29 22:41:51 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:41:51 INFO imstat::::casa ########################################## 2026-01-29 22:41:51 INFO phaseshift::::casa ########################################## 2026-01-29 22:41:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:41:51 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 02:40:24.0000' ) 2026-01-29 22:41:51 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:41:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:41:51 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:41:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:41:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:41:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:41:51 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:41:51 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:41:51 INFO MSTransformManager::open Select data 2026-01-29 22:41:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:41:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-01-29 22:41:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 02:40:24.0000' successfully parsed 2026-01-29 22:41:53 INFO phaseshift::::casa Shift phase center 2026-01-29 22:41:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:41:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:41:51.432433 End time: 2026-01-29 22:41:54.098392 2026-01-29 22:41:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:41:54 INFO phaseshift::::casa ########################################## 2026-01-29 22:41:54 INFO tclean::::casa ########################################## 2026-01-29 22:41:54 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:41:54 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 ) 2026-01-29 22:41:54 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:41:54 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:41:54 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:41:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:41:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:41:54 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:41:54 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:41:54 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:41:54 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:41:54 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:41:54 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:41:54 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:41:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:41:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026679 2026-01-29 22:41:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:41:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:41:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:41:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:41:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:41:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:41:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:41:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:41:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:41:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:41:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:41:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:41:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:41:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:42:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:42:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:42:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:42:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:42:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:42:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:42:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:42:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:42:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:42:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:42:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:42:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:42:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:42:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:42:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:42:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:42:04 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:42:04 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:42:04 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:42:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:42:06 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:42:09 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:41:54.153516 End time: 2026-01-29 22:42:09.204017 2026-01-29 22:42:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:42:09 INFO tclean::::casa ########################################## 2026-01-29 22:42:09 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:42:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:42:09 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) 2026-01-29 22:42:09 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:42:09 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:42:09 2026****** 2026-01-29 22:42:09 INFO ImageFitter::fit+ 2026-01-29 22:42:09 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:42:09 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:42:09 INFO ImageFitter::fit+ --- region: 2026-01-29 22:42:09 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:42:09 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:42:09 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:42:09 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:42:09 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:42:09 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:42:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:42:09 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) 2026-01-29 22:42:09 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:42:09 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:42:09 INFO imstat::::casa ########################################## 2026-01-29 22:42:09 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:42:09 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 ) 2026-01-29 22:42:09 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:42:09 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:42:09 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:42:09 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:42:09 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:42:09 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:42:09 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:42:09 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:42:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:42:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:42:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:42:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:42:09 INFO imstat:::: Values --- 2026-01-29 22:42:09 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:42:09 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:42:09 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:42:09 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-01-29 22:42:09 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:42:09 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:42:09 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:42:09 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:42:09 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:42:09 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:42:09 INFO imstat:::: Statistics --- 2026-01-29 22:42:09 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:42:09 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:42:09 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:42:09 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:42:09 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-01-29 22:42:09 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-01-29 22:42:09 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-01-29 22:42:09 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-01-29 22:42:09 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-01-29 22:42:09 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:42:09 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:42:09 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:42:09 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:42:09 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:42:09 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:42:09 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 2026-01-29 22:42:09 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:42:09.287724 End time: 2026-01-29 22:42:09.327612 2026-01-29 22:42:09 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:42:09 INFO imstat::::casa ########################################## 2026-01-29 22:42:09 INFO phaseshift::::casa ########################################## 2026-01-29 22:42:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:42:09 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40.100000000deg' ) 2026-01-29 22:42:09 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:42:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:42:09 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:42:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:42:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:42:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:42:09 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:42:09 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:42:09 INFO MSTransformManager::open Select data 2026-01-29 22:42:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:42:11 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:42:11 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40.100000000deg' successfully parsed 2026-01-29 22:42:11 INFO phaseshift::::casa Shift phase center 2026-01-29 22:42:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:42:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:42:09.349605 End time: 2026-01-29 22:42:11.887124 2026-01-29 22:42:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:42:12 INFO phaseshift::::casa ########################################## 2026-01-29 22:42:12 INFO tclean::::casa ########################################## 2026-01-29 22:42:12 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:42:12 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:42:12 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:42:12 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:42:12 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:42:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:42:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:42:12 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:42:12 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:42:12 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:42:12 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:42:12 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:42:12 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:42:12 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:42:13 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:42:13 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026365 2026-01-29 22:42:13 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:42:13 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:42:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:42:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:42:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:42:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:42:15 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:42:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:42:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:42:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:42:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:42:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:42:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:42:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:42:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:42:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:42:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:42:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:42:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:42:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:42:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:42:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:42:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:42:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:42:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:42:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:42:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:42:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:42:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:42:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:42:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:42:19 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:42:19 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:42:19 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:42:20 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:42:20 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:42:21 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:42:11.937071 End time: 2026-01-29 22:42:20.985188 2026-01-29 22:42:21 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:42:21 INFO tclean::::casa ########################################## 2026-01-29 22:42:21 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:42:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:42:21 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) 2026-01-29 22:42:21 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:42:21 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:42:21 2026****** 2026-01-29 22:42:21 INFO ImageFitter::fit+ 2026-01-29 22:42:21 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:42:21 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:42:21 INFO ImageFitter::fit+ --- region: 2026-01-29 22:42:21 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:42:21 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:42:21 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:42:21 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:42:21 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:42:21 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:42:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:42:21 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) 2026-01-29 22:42:21 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:42:21 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:42:21 INFO imstat::::casa ########################################## 2026-01-29 22:42:21 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:42:21 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 ) 2026-01-29 22:42:21 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:42:21 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:42:21 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:42:21 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:42:21 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:42:21 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) 2026-01-29 22:42:21 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:42:21 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:42:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:42:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:42:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:42:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:42:21 INFO imstat:::: Values --- 2026-01-29 22:42:21 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:42:21 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:42:21 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:42:21 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-01-29 22:42:21 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:42:21 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:42:21 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:42:21 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:42:21 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:42:21 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:42:21 INFO imstat:::: Statistics --- 2026-01-29 22:42:21 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:42:21 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:42:21 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:42:21 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:42:21 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-01-29 22:42:21 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-01-29 22:42:21 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-01-29 22:42:21 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-01-29 22:42:21 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-01-29 22:42:21 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:42:21 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:42:21 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:42:21 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:42:21 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:42:21 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:42:21 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 2026-01-29 22:42:21 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:42:21.064522 End time: 2026-01-29 22:42:21.093252 2026-01-29 22:42:21 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:42:21 INFO imstat::::casa ########################################## 2026-01-29 22:42:21 INFO phaseshift::::casa ########################################## 2026-01-29 22:42:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:42:21 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 19:53:50.0000 0.699877030rad' ) 2026-01-29 22:42:21 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:42:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:42:21 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:42:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:42:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:42:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:42:21 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:42:21 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:42:21 INFO MSTransformManager::open Select data 2026-01-29 22:42:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:42:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:42:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 0.699877030rad' successfully parsed 2026-01-29 22:42:24 INFO phaseshift::::casa Shift phase center 2026-01-29 22:42:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:42:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:42:21.111183 End time: 2026-01-29 22:42:24.897580 2026-01-29 22:42:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:42:25 INFO phaseshift::::casa ########################################## 2026-01-29 22:42:25 INFO tclean::::casa ########################################## 2026-01-29 22:42:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:42:25 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 ) 2026-01-29 22:42:25 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:42:25 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:42:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:42:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:42:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:42:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:42:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:42:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:42:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:42:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:42:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:42:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:42:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:42:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.019442 2026-01-29 22:42:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:42:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:42:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:42:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:42:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:42:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:42:28 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:42:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:42:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:42:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:42:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:42:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:42:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:42:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:42:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:42:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:42:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:42:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:42:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:42:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:42:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:42:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:42:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:42:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:42:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:42:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:42:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:42:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:42:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:42:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:42:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:42:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:42:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:42:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:42:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:42:34 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:42:34 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:42:24.953437 End time: 2026-01-29 22:42:34.314246 2026-01-29 22:42:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:42:34 INFO tclean::::casa ########################################## 2026-01-29 22:42:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:42:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:42:34 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:42:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:42:34 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:42:34 2026****** 2026-01-29 22:42:34 INFO ImageFitter::fit+ 2026-01-29 22:42:34 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:42:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:42:34 INFO ImageFitter::fit+ --- region: 2026-01-29 22:42:34 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:42:34 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:42:34 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:42:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:42:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:42:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:42:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:42:34 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:42:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:42:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:42:34 INFO imstat::::casa ########################################## 2026-01-29 22:42:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:42:34 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:42:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:42:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:42:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:42:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:42:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:42:34 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:42:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:42:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:42:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:42:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:42:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:42:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:42:34 INFO imstat:::: Values --- 2026-01-29 22:42:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:42:34 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:42:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:42:34 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-01-29 22:42:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:42:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:42:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:42:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-01-29 22:42:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:42:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:42:34 INFO imstat:::: Statistics --- 2026-01-29 22:42:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:42:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:42:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:42:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:42:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-01-29 22:42:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-01-29 22:42:34 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-01-29 22:42:34 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-01-29 22:42:34 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-01-29 22:42:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:42:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:42:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:42:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:42:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:42:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:42:34 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777640e-05 4.999996e+00 2026-01-29 22:42:34 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:42:34.365927 End time: 2026-01-29 22:42:34.398085 2026-01-29 22:42:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:42:34 INFO imstat::::casa ########################################## 2026-01-29 22:42:34 INFO phaseshift::::casa ########################################## 2026-01-29 22:42:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:42:34 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40d06m00' ) 2026-01-29 22:42:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:42:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:42:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:42:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:42:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:42:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:42:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:42:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:42:34 INFO MSTransformManager::open Select data 2026-01-29 22:42:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:42:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:42:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40d06m00' successfully parsed 2026-01-29 22:42:38 INFO phaseshift::::casa Shift phase center 2026-01-29 22:42:44 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:42:44 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:42:34.412021 End time: 2026-01-29 22:42:43.907329 2026-01-29 22:42:44 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:42:44 INFO phaseshift::::casa ########################################## 2026-01-29 22:42:44 INFO tclean::::casa ########################################## 2026-01-29 22:42:44 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:42:44 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 ) 2026-01-29 22:42:44 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:42:44 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:42:44 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:42:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:42:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:42:44 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:42:44 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:42:44 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:42:44 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:42:44 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:42:44 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:42:44 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:42:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:42:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026491 2026-01-29 22:42:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:42:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:42:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:42:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:42:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:42:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:42:50 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:42:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:42:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:42:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:42:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:42:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:42:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:42:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:42:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:42:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:42:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:42:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:42:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:42:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:42:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:42:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:42:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:42:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:42:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:42:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:42:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:42:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:42:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:42:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:42:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:42:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:42:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:42:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:42:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:42:56 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:42:57 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:42:43.964540 End time: 2026-01-29 22:42:56.888703 2026-01-29 22:42:57 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:42:57 INFO tclean::::casa ########################################## 2026-01-29 22:42:57 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:42:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:42:57 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) 2026-01-29 22:42:57 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:42:57 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:42:57 2026****** 2026-01-29 22:42:57 INFO ImageFitter::fit+ 2026-01-29 22:42:57 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:42:57 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:42:57 INFO ImageFitter::fit+ --- region: 2026-01-29 22:42:57 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:42:57 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:42:57 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:42:57 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:42:57 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:42:57 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:42:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:42:57 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) 2026-01-29 22:42:57 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:42:57 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:42:57 INFO imstat::::casa ########################################## 2026-01-29 22:42:57 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:42:57 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 ) 2026-01-29 22:42:57 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:42:57 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:42:57 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:42:57 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:42:57 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:42:57 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) 2026-01-29 22:42:57 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:42:57 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:42:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:42:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:42:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:42:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:42:57 INFO imstat:::: Values --- 2026-01-29 22:42:57 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:42:57 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:42:57 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:42:57 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-01-29 22:42:57 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:42:57 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:42:57 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:42:57 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:42:57 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:42:57 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:42:57 INFO imstat:::: Statistics --- 2026-01-29 22:42:57 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:42:57 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:42:57 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:42:57 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:42:57 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-01-29 22:42:57 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-01-29 22:42:57 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-01-29 22:42:57 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-01-29 22:42:57 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-01-29 22:42:57 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:42:57 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:42:57 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:42:57 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:42:57 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:42:57 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:42:57 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 2026-01-29 22:42:57 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:42:56.962192 End time: 2026-01-29 22:42:57.002936 2026-01-29 22:42:57 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:42:57 INFO imstat::::casa ########################################## 2026-01-29 22:42:57 INFO phaseshift::::casa ########################################## 2026-01-29 22:42:57 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:42:57 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 02:40:24.0000' ) 2026-01-29 22:42:57 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:42:57 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:42:57 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:42:57 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:42:57 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:42:57 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:42:57 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:42:57 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:42:57 INFO MSTransformManager::open Select data 2026-01-29 22:42:57 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:43:00 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-01-29 22:43:00 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 02:40:24.0000' successfully parsed 2026-01-29 22:43:00 INFO phaseshift::::casa Shift phase center 2026-01-29 22:43:02 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:43:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:42:57.018623 End time: 2026-01-29 22:43:01.726259 2026-01-29 22:43:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:43:02 INFO phaseshift::::casa ########################################## 2026-01-29 22:43:02 INFO tclean::::casa ########################################## 2026-01-29 22:43:02 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:43:02 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:43:02 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:43:02 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:43:02 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:43:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:43:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:43:02 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:43:02 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:43:02 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:43:02 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:43:02 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:43:02 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:43:02 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:43:03 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:43:03 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028658 2026-01-29 22:43:03 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:43:03 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:43:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:43:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:43:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:43:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:43:05 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:43:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:43:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:43:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:43:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:43:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:43:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:43:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:43:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:43:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:43:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:43:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:43:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:43:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:43:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:43:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:43:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:43:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:43:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:43:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:43:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:43:10 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:43:10 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:43:10 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:43:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:43:11 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:43:11 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:43:01.785824 End time: 2026-01-29 22:43:11.352195 2026-01-29 22:43:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:43:11 INFO tclean::::casa ########################################## 2026-01-29 22:43:11 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:43:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:43:11 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) 2026-01-29 22:43:11 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:43:11 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:43:11 2026****** 2026-01-29 22:43:11 INFO ImageFitter::fit+ 2026-01-29 22:43:11 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:43:11 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:43:11 INFO ImageFitter::fit+ --- region: 2026-01-29 22:43:11 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:43:11 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:43:11 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:43:11 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:43:11 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:43:11 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:43:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:43:11 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) 2026-01-29 22:43:11 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:43:11 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:43:11 INFO imstat::::casa ########################################## 2026-01-29 22:43:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:43:11 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 ) 2026-01-29 22:43:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:43:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:43:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:43:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:43:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:43:11 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:43:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:43:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:43:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:43:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:43:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:43:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:43:11 INFO imstat:::: Values --- 2026-01-29 22:43:11 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:43:11 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:43:11 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:43:11 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-01-29 22:43:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:43:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:43:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:43:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:43:11 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:43:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:43:11 INFO imstat:::: Statistics --- 2026-01-29 22:43:11 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:43:11 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:43:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:43:11 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:43:11 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-01-29 22:43:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-01-29 22:43:11 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-01-29 22:43:11 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-01-29 22:43:11 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-01-29 22:43:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:43:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:43:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:43:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:43:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:43:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:43:11 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 2026-01-29 22:43:11 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:43:11.425458 End time: 2026-01-29 22:43:11.453270 2026-01-29 22:43:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:43:11 INFO imstat::::casa ########################################## 2026-01-29 22:43:11 INFO phaseshift::::casa ########################################## 2026-01-29 22:43:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:43:11 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40.100000000deg' ) 2026-01-29 22:43:11 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:43:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:43:11 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:43:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:43:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:43:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:43:11 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:43:11 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:43:11 INFO MSTransformManager::open Select data 2026-01-29 22:43:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:43:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:43:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40.100000000deg' successfully parsed 2026-01-29 22:43:16 INFO phaseshift::::casa Shift phase center 2026-01-29 22:43:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:43:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:43:11.470644 End time: 2026-01-29 22:43:16.981988 2026-01-29 22:43:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:43:17 INFO phaseshift::::casa ########################################## 2026-01-29 22:43:17 INFO tclean::::casa ########################################## 2026-01-29 22:43:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:43:17 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:43:17 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:43:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:43:17 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:43:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:43:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:43:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:43:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:43:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:43:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:43:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:43:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:43:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:43:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:43:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029085 2026-01-29 22:43:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:43:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:43:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:43:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:43:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:43:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:43:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:43:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:43:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:43:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:43:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:43:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:43:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:43:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:43:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:43:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:43:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:43:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:43:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:43:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:43:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:43:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:43:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:43:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:43:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:43:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:43:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:43:26 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:43:26 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:43:26 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:43:27 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:43:27 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:43:28 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:43:17.041179 End time: 2026-01-29 22:43:28.281639 2026-01-29 22:43:28 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:43:28 INFO tclean::::casa ########################################## 2026-01-29 22:43:28 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:43:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:43:28 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) 2026-01-29 22:43:28 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:43:28 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:43:28 2026****** 2026-01-29 22:43:28 INFO ImageFitter::fit+ 2026-01-29 22:43:28 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:43:28 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:43:28 INFO ImageFitter::fit+ --- region: 2026-01-29 22:43:28 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:43:28 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:43:28 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:43:28 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:43:28 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:43:28 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:43:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:43:28 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) 2026-01-29 22:43:28 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:43:28 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:43:28 INFO imstat::::casa ########################################## 2026-01-29 22:43:28 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:43:28 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 ) 2026-01-29 22:43:28 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:43:28 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:43:28 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:43:28 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:43:28 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:43:28 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) 2026-01-29 22:43:28 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:43:28 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:43:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:43:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:43:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:43:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:43:28 INFO imstat:::: Values --- 2026-01-29 22:43:28 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:43:28 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:43:28 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:43:28 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-01-29 22:43:28 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:43:28 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:43:28 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:43:28 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:43:28 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:43:28 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:43:28 INFO imstat:::: Statistics --- 2026-01-29 22:43:28 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:43:28 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:43:28 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:43:28 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:43:28 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-01-29 22:43:28 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-01-29 22:43:28 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-01-29 22:43:28 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-01-29 22:43:28 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-01-29 22:43:28 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:43:28 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:43:28 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:43:28 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:43:28 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:43:28 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:43:28 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 2026-01-29 22:43:28 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:43:28.361590 End time: 2026-01-29 22:43:28.403860 2026-01-29 22:43:28 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:43:28 INFO imstat::::casa ########################################## 2026-01-29 22:43:28 INFO phaseshift::::casa ########################################## 2026-01-29 22:43:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:43:28 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 298.458333333deg 0.699877030rad' ) 2026-01-29 22:43:28 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:43:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:43:28 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:43:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:43:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:43:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:43:28 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:43:28 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:43:28 INFO MSTransformManager::open Select data 2026-01-29 22:43:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:43:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:43:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 0.699877030rad' successfully parsed 2026-01-29 22:43:32 INFO phaseshift::::casa Shift phase center 2026-01-29 22:43:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:43:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:43:28.420340 End time: 2026-01-29 22:43:32.458863 2026-01-29 22:43:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:43:32 INFO phaseshift::::casa ########################################## 2026-01-29 22:43:33 INFO tclean::::casa ########################################## 2026-01-29 22:43:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:43:33 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:43:33 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:43:33 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:43:33 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:43:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:43:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:43:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:43:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:43:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:43:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:43:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:43:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:43:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:43:33 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:43:33 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.018869 2026-01-29 22:43:33 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:43:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:43:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:43:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:43:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:43:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:43:35 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:43:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:43:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:43:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:43:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:43:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:43:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:43:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:43:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:43:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:43:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:43:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:43:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:43:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:43:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:43:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:43:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:43:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:43:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:43:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:43:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:43:38 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:43:38 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:43:38 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:43:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:43:39 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:43:41 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:43:32.511437 End time: 2026-01-29 22:43:41.239967 2026-01-29 22:43:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:43:41 INFO tclean::::casa ########################################## 2026-01-29 22:43:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:43:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:43:41 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) 2026-01-29 22:43:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:43:41 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:43:41 2026****** 2026-01-29 22:43:41 INFO ImageFitter::fit+ 2026-01-29 22:43:41 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:43:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:43:41 INFO ImageFitter::fit+ --- region: 2026-01-29 22:43:41 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:43:41 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:43:41 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:43:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:43:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:43:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:43:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:43:41 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) 2026-01-29 22:43:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:43:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:43:41 INFO imstat::::casa ########################################## 2026-01-29 22:43:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:43:41 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 ) 2026-01-29 22:43:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:43:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:43:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:43:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:43:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:43:41 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) 2026-01-29 22:43:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:43:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:43:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:43:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:43:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:43:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:43:41 INFO imstat:::: Values --- 2026-01-29 22:43:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:43:41 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:43:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:43:41 INFO imstat:::: -- minimum value [min]: -7.77738e-05 Jy/beam 2026-01-29 22:43:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:43:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:43:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:43:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:43:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:43:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:43:41 INFO imstat:::: Statistics --- 2026-01-29 22:43:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:43:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:43:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:43:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:43:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86662e-05 Jy/beam 2026-01-29 22:43:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73577e-05 Jy/beam 2026-01-29 22:43:41 INFO imstat:::: -- IQR [quartile]: 3.56242e-05 Jy/beam 2026-01-29 22:43:41 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-01-29 22:43:41 INFO imstat:::: -- Third quartile [q3]: 1.11673e-06 Jy/beam 2026-01-29 22:43:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:43:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:43:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:43:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:43:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:43:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:43:41 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 2026-01-29 22:43:41 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:43:41.317149 End time: 2026-01-29 22:43:41.351736 2026-01-29 22:43:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:43:41 INFO imstat::::casa ########################################## 2026-01-29 22:43:41 INFO phaseshift::::casa ########################################## 2026-01-29 22:43:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:43:41 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40d06m00' ) 2026-01-29 22:43:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:43:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:43:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:43:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:43:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:43:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:43:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:43:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:43:41 INFO MSTransformManager::open Select data 2026-01-29 22:43:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:43:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:43:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40d06m00' successfully parsed 2026-01-29 22:43:44 INFO phaseshift::::casa Shift phase center 2026-01-29 22:43:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:43:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:43:41.363406 End time: 2026-01-29 22:43:44.601342 2026-01-29 22:43:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:43:45 INFO phaseshift::::casa ########################################## 2026-01-29 22:43:45 INFO tclean::::casa ########################################## 2026-01-29 22:43:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:43:45 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 ) 2026-01-29 22:43:45 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:43:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:43:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:43:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:43:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:43:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:43:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:43:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:43:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:43:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:43:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:43:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:43:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:43:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028305 2026-01-29 22:43:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:43:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:43:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:43:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:43:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:43:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:43:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:43:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:43:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:43:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:43:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:43:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:43:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:43:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:43:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:43:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:43:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:43:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:43:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:43:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:43:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:43:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:43:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:43:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:43:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:43:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:43:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:43:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:43:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:43:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:43:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:43:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:43:57 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:43:58 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:43:44.648965 End time: 2026-01-29 22:43:58.414248 2026-01-29 22:43:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:43:58 INFO tclean::::casa ########################################## 2026-01-29 22:43:58 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:43:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:43:58 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:43:58 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:43:58 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:43:58 2026****** 2026-01-29 22:43:58 INFO ImageFitter::fit+ 2026-01-29 22:43:58 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:43:58 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:43:58 INFO ImageFitter::fit+ --- region: 2026-01-29 22:43:58 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:43:58 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:43:58 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:43:58 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:43:58 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:43:58 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:43:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:43:58 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:43:58 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:43:58 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:43:58 INFO imstat::::casa ########################################## 2026-01-29 22:43:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:43:58 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:43:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:43:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:43:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:43:59 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:43:59 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:43:59 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:43:59 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:43:59 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:43:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:43:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:43:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:43:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:43:59 INFO imstat:::: Values --- 2026-01-29 22:43:59 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:43:59 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:43:59 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:43:59 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-01-29 22:43:59 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:43:59 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:43:59 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:43:59 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-01-29 22:43:59 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:43:59 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:43:59 INFO imstat:::: Statistics --- 2026-01-29 22:43:59 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:43:59 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:43:59 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:43:59 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:43:59 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-01-29 22:43:59 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-01-29 22:43:59 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-01-29 22:43:59 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-01-29 22:43:59 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-01-29 22:43:59 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:43:59 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:43:59 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:43:59 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:43:59 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:43:59 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:43:59 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778010e-05 4.999996e+00 2026-01-29 22:43:59 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:43:58.490329 End time: 2026-01-29 22:43:58.517098 2026-01-29 22:43:59 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:43:59 INFO imstat::::casa ########################################## 2026-01-29 22:43:59 INFO phaseshift::::casa ########################################## 2026-01-29 22:43:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:43:59 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 02:40:24.0000' ) 2026-01-29 22:43:59 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:43:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:43:59 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:43:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:43:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:43:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:43:59 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:43:59 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:43:59 INFO MSTransformManager::open Select data 2026-01-29 22:43:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:44:02 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 ".". 2026-01-29 22:44:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 02:40:24.0000' successfully parsed 2026-01-29 22:44:02 INFO phaseshift::::casa Shift phase center 2026-01-29 22:44:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:44:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:43:58.534566 End time: 2026-01-29 22:44:02.959439 2026-01-29 22:44:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:44:03 INFO phaseshift::::casa ########################################## 2026-01-29 22:44:03 INFO tclean::::casa ########################################## 2026-01-29 22:44:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:44:03 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 ) 2026-01-29 22:44:03 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:44:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:44:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:44:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:44:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:44:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:44:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:44:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:44:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:44:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:44:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:44:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:44:04 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:44:04 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026667 2026-01-29 22:44:04 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:44:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:44:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:44:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:44:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:44:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:44:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:44:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:44:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:44:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:44:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:44:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:44:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:44:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:44:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:44:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:44:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:44:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:44:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:44:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:44:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:44:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:44:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:44:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:44:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:44:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:44:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:44:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:44:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:44:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:44:12 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:44:12 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:44:13 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:44:03.018695 End time: 2026-01-29 22:44:13.025817 2026-01-29 22:44:13 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:44:13 INFO tclean::::casa ########################################## 2026-01-29 22:44:13 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:44:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:44:13 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:44:13 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:44:13 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:44:13 2026****** 2026-01-29 22:44:13 INFO ImageFitter::fit+ 2026-01-29 22:44:13 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:44:13 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:44:13 INFO ImageFitter::fit+ --- region: 2026-01-29 22:44:13 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:44:13 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:44:13 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:44:13 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:44:13 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:44:13 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:44:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:44:13 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:44:13 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:44:13 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:44:13 INFO imstat::::casa ########################################## 2026-01-29 22:44:13 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:44:13 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:44:13 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:44:13 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:44:13 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:44:13 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:44:13 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:44:13 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:44:13 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:44:13 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:44:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:44:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:44:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:44:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:44:13 INFO imstat:::: Values --- 2026-01-29 22:44:13 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:44:13 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:44:13 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:44:13 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-01-29 22:44:13 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:44:13 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:44:13 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:44:13 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-01-29 22:44:13 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:44:13 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:44:13 INFO imstat:::: Statistics --- 2026-01-29 22:44:13 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:44:13 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:44:13 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:44:13 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:44:13 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-01-29 22:44:13 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-01-29 22:44:13 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-01-29 22:44:13 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-01-29 22:44:13 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-01-29 22:44:13 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:44:13 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:44:13 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:44:13 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:44:13 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:44:13 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:44:13 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 2026-01-29 22:44:13 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:44:13.089592 End time: 2026-01-29 22:44:13.113718 2026-01-29 22:44:13 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:44:13 INFO imstat::::casa ########################################## 2026-01-29 22:44:13 INFO phaseshift::::casa ########################################## 2026-01-29 22:44:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:44:13 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40.100000000deg' ) 2026-01-29 22:44:13 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:44:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:44:13 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:44:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:44:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:44:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:44:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:44:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:44:13 INFO MSTransformManager::open Select data 2026-01-29 22:44:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:44:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:44:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40.100000000deg' successfully parsed 2026-01-29 22:44:16 INFO phaseshift::::casa Shift phase center 2026-01-29 22:44:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:44:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:44:13.129758 End time: 2026-01-29 22:44:16.740125 2026-01-29 22:44:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:44:17 INFO phaseshift::::casa ########################################## 2026-01-29 22:44:17 INFO tclean::::casa ########################################## 2026-01-29 22:44:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:44:17 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:44:17 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:44:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:44:17 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:44:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:44:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:44:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:44:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:44:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:44:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:44:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:44:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:44:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:44:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:44:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028418 2026-01-29 22:44:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:44:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:44:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:44:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:44:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:44:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:44:20 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:44:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:44:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:44:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:44:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:44:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:44:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:44:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:44:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:44:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:44:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:44:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:44:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:44:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:44:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:44:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:44:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:44:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:44:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:44:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:44:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:44:26 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:44:26 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:44:26 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:44:27 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:44:27 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:44:28 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:44:16.792802 End time: 2026-01-29 22:44:27.906348 2026-01-29 22:44:28 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:44:28 INFO tclean::::casa ########################################## 2026-01-29 22:44:28 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:44:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:44:28 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) 2026-01-29 22:44:28 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:44:28 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:44:28 2026****** 2026-01-29 22:44:28 INFO ImageFitter::fit+ 2026-01-29 22:44:28 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:44:28 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:44:28 INFO ImageFitter::fit+ --- region: 2026-01-29 22:44:28 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:44:28 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:44:28 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:44:28 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:44:28 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:44:28 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:44:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:44:28 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) 2026-01-29 22:44:28 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:44:28 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:44:28 INFO imstat::::casa ########################################## 2026-01-29 22:44:28 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:44:28 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 ) 2026-01-29 22:44:28 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:44:28 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:44:28 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:44:28 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:44:28 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:44:28 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) 2026-01-29 22:44:28 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:44:28 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:44:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:44:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:44:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:44:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:44:28 INFO imstat:::: Values --- 2026-01-29 22:44:28 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:44:28 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:44:28 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:44:28 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-01-29 22:44:28 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:44:28 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:44:28 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:44:28 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-01-29 22:44:28 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:44:28 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:44:28 INFO imstat:::: Statistics --- 2026-01-29 22:44:28 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:44:28 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:44:28 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:44:28 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:44:28 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-01-29 22:44:28 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-01-29 22:44:28 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-01-29 22:44:28 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-01-29 22:44:28 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-01-29 22:44:28 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:44:28 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:44:28 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:44:28 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:44:28 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:44:28 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:44:28 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 2026-01-29 22:44:28 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:44:27.985455 End time: 2026-01-29 22:44:28.012761 2026-01-29 22:44:28 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:44:28 INFO imstat::::casa ########################################## 2026-01-29 22:44:28 INFO phaseshift::::casa ########################################## 2026-01-29 22:44:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:44:28 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' ) 2026-01-29 22:44:28 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:44:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:44:28 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:44:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:44:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:44:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:44:28 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:44:28 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:44:28 INFO MSTransformManager::open Select data 2026-01-29 22:44:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:44:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:44:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 0.699877030rad' successfully parsed 2026-01-29 22:44:32 INFO phaseshift::::casa Shift phase center 2026-01-29 22:44:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:44:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:44:28.030817 End time: 2026-01-29 22:44:32.336918 2026-01-29 22:44:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:44:32 INFO phaseshift::::casa ########################################## 2026-01-29 22:44:32 INFO tclean::::casa ########################################## 2026-01-29 22:44:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:44:32 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 ) 2026-01-29 22:44:32 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:44:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:44:32 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:44:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:44:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:44:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:44:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:44:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:44:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:44:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:44:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:44:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:44:33 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:44:33 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028495 2026-01-29 22:44:33 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:44:33 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:44:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:44:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:44:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:44:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:44:35 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:44:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:44:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:44:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:44:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:44:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:44:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:44:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:44:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:44:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:44:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:44:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:44:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:44:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:44:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:44:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:44:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:44:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:44:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:44:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:44:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:44:38 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:44:38 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:44:38 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:44:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:44:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:44:42 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:44:32.392335 End time: 2026-01-29 22:44:42.095335 2026-01-29 22:44:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:44:42 INFO tclean::::casa ########################################## 2026-01-29 22:44:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:44:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:44:42 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:44:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:44:42 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:44:42 2026****** 2026-01-29 22:44:42 INFO ImageFitter::fit+ 2026-01-29 22:44:42 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:44:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:44:42 INFO ImageFitter::fit+ --- region: 2026-01-29 22:44:42 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:44:42 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:44:42 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:44:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:44:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:44:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:44:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:44:42 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:44:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:44:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:44:42 INFO imstat::::casa ########################################## 2026-01-29 22:44:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:44:42 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:44:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:44:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:44:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:44:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:44:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:44:42 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:44:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:44:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:44:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:44:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:44:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:44:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:44:42 INFO imstat:::: Values --- 2026-01-29 22:44:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:44:42 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:44:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:44:42 INFO imstat:::: -- minimum value [min]: -7.77793e-05 Jy/beam 2026-01-29 22:44:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:44:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:44:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:44:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-01-29 22:44:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:44:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:44:42 INFO imstat:::: Statistics --- 2026-01-29 22:44:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:44:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:44:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:44:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:44:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-01-29 22:44:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73592e-05 Jy/beam 2026-01-29 22:44:42 INFO imstat:::: -- IQR [quartile]: 3.55982e-05 Jy/beam 2026-01-29 22:44:42 INFO imstat:::: -- First quartile [q1]: -3.45035e-05 Jy/beam 2026-01-29 22:44:42 INFO imstat:::: -- Third quartile [q3]: 1.09469e-06 Jy/beam 2026-01-29 22:44:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:44:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:44:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:44:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:44:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:44:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:44:42 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 2026-01-29 22:44:42 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:44:42.165911 End time: 2026-01-29 22:44:42.199626 2026-01-29 22:44:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:44:42 INFO imstat::::casa ########################################## 2026-01-29 22:44:42 INFO phaseshift::::casa ########################################## 2026-01-29 22:44:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:44:42 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40d06m0.0019' ) 2026-01-29 22:44:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:44:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:44:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:44:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:44:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:44:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:44:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:44:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:44:42 INFO MSTransformManager::open Select data 2026-01-29 22:44:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:44:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:44:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40d06m0.0019' successfully parsed 2026-01-29 22:44:45 INFO phaseshift::::casa Shift phase center 2026-01-29 22:44:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:44:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:44:42.216889 End time: 2026-01-29 22:44:45.589570 2026-01-29 22:44:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:44:46 INFO phaseshift::::casa ########################################## 2026-01-29 22:44:46 INFO tclean::::casa ########################################## 2026-01-29 22:44:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:44:46 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:44:46 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:44:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:44:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:44:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:44:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:44:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:44:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:44:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:44:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:44:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:44:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:44:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:44:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:44:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028745 2026-01-29 22:44:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:44:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:44:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:44:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:44:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:44:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:44:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:44:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:44:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:44:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:44:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:44:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:44:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:44:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:44:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:44:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:44:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:44:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:44:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:44:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:44:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:44:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:44:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:44:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:44:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:44:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:44:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:44:52 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:44:52 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:44:52 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:44:53 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:44:53 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:44:54 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:44:45.642899 End time: 2026-01-29 22:44:54.026899 2026-01-29 22:44:54 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:44:54 INFO tclean::::casa ########################################## 2026-01-29 22:44:54 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:44:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:44:54 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) 2026-01-29 22:44:54 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:44:54 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:44:54 2026****** 2026-01-29 22:44:54 INFO ImageFitter::fit+ 2026-01-29 22:44:54 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:44:54 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:44:54 INFO ImageFitter::fit+ --- region: 2026-01-29 22:44:54 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:44:54 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:44:54 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:44:54 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:44:54 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:44:54 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:44:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:44:54 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) 2026-01-29 22:44:54 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:44:54 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:44:54 INFO imstat::::casa ########################################## 2026-01-29 22:44:54 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:44:54 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 ) 2026-01-29 22:44:54 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:44:54 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:44:54 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:44:54 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:44:54 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:44:54 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) 2026-01-29 22:44:54 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:44:54 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:44:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:44:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:44:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:44:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:44:54 INFO imstat:::: Values --- 2026-01-29 22:44:54 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:44:54 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:44:54 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:44:54 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-01-29 22:44:54 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:44:54 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:44:54 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:44:54 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-01-29 22:44:54 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:44:54 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:44:54 INFO imstat:::: Statistics --- 2026-01-29 22:44:54 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:44:54 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:44:54 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:44:54 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:44:54 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-01-29 22:44:54 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-01-29 22:44:54 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-01-29 22:44:54 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-01-29 22:44:54 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-01-29 22:44:54 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:44:54 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:44:54 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:44:54 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:44:54 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:44:54 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:44:54 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 2026-01-29 22:44:54 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:44:54.115184 End time: 2026-01-29 22:44:54.146444 2026-01-29 22:44:54 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:44:54 INFO imstat::::casa ########################################## 2026-01-29 22:44:54 INFO phaseshift::::casa ########################################## 2026-01-29 22:44:54 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:44:54 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 02:40:24.0001' ) 2026-01-29 22:44:54 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:44:54 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:44:54 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:44:54 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:44:54 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:44:54 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:44:54 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:44:54 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:44:54 INFO MSTransformManager::open Select data 2026-01-29 22:44:54 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:44:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-01-29 22:44:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 02:40:24.0001' successfully parsed 2026-01-29 22:44:56 INFO phaseshift::::casa Shift phase center 2026-01-29 22:44:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:44:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:44:54.165113 End time: 2026-01-29 22:44:56.377494 2026-01-29 22:44:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:44:56 INFO phaseshift::::casa ########################################## 2026-01-29 22:44:56 INFO tclean::::casa ########################################## 2026-01-29 22:44:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:44:56 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:44:56 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:44:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:44:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:44:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:44:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:44:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:44:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:44:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:44:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:44:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:44:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:44:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:44:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:44:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.016182 2026-01-29 22:44:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:44:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:44:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:44:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:44:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:44:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:44:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:44:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:44:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:45:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:45:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:45:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:45:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:45:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:45:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:45:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:45:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:45:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:45:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:45:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:45:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:45:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:45:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:45:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:45:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:45:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:45:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:45:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:45:03 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:45:03 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:45:03 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:45:03 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:45:04 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:45:04 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:44:56.422642 End time: 2026-01-29 22:45:04.389948 2026-01-29 22:45:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:45:04 INFO tclean::::casa ########################################## 2026-01-29 22:45:04 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:45:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:04 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) 2026-01-29 22:45:04 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:45:04 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:45:04 2026****** 2026-01-29 22:45:04 INFO ImageFitter::fit+ 2026-01-29 22:45:04 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:45:04 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:45:04 INFO ImageFitter::fit+ --- region: 2026-01-29 22:45:04 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:45:04 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:45:04 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:45:04 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:45:04 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:45:04 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:45:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:04 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-01-29 22:45:04 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:45:04 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:45:04 INFO imstat::::casa ########################################## 2026-01-29 22:45:04 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:45:04 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 ) 2026-01-29 22:45:04 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:45:04 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:45:04 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:45:04 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:45:04 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:04 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) 2026-01-29 22:45:04 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:45:04 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:45:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:45:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:45:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:45:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:45:04 INFO imstat:::: Values --- 2026-01-29 22:45:04 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:45:04 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:45:04 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:45:04 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-01-29 22:45:04 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:45:04 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:45:04 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:45:04 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-01-29 22:45:04 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:45:04 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:45:04 INFO imstat:::: Statistics --- 2026-01-29 22:45:04 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:45:04 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:45:04 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:45:04 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:45:04 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-01-29 22:45:04 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-01-29 22:45:04 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-01-29 22:45:04 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-01-29 22:45:04 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-01-29 22:45:04 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:45:04 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:45:04 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:45:04 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:45:04 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:45:04 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:45:04 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 2026-01-29 22:45:04 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:45:04.456894 End time: 2026-01-29 22:45:04.482584 2026-01-29 22:45:04 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:45:04 INFO imstat::::casa ########################################## 2026-01-29 22:45:04 INFO phaseshift::::casa ########################################## 2026-01-29 22:45:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:45:04 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 19h53m49.9980 40.100000528deg' ) 2026-01-29 22:45:05 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:45:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:45:05 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:45:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:45:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:45:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:45:05 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:45:05 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:45:05 INFO MSTransformManager::open Select data 2026-01-29 22:45:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:45:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:45:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40.100000528deg' successfully parsed 2026-01-29 22:45:08 INFO phaseshift::::casa Shift phase center 2026-01-29 22:45:09 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:45:09 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:45:04.499079 End time: 2026-01-29 22:45:09.002332 2026-01-29 22:45:09 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:45:09 INFO phaseshift::::casa ########################################## 2026-01-29 22:45:09 INFO tclean::::casa ########################################## 2026-01-29 22:45:09 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:45:09 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 ) 2026-01-29 22:45:09 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:45:09 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:45:09 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:45:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:45:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:45:09 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:45:09 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:45:09 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:45:09 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:45:09 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:45:09 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:45:09 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:45:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:45:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028576 2026-01-29 22:45:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:45:10 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:45:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:45:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:45:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:45:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:45:11 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:45:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:45:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:45:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:45:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:45:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:45:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:45:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:45:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:45:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:45:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:45:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:45:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:45:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:45:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:45:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:45:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:45:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:45:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:45:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:45:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:45:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:45:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:45:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:45:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:45:17 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:45:17 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:45:09.058241 End time: 2026-01-29 22:45:17.346780 2026-01-29 22:45:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:45:17 INFO tclean::::casa ########################################## 2026-01-29 22:45:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:45:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:17 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) 2026-01-29 22:45:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:45:17 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:45:17 2026****** 2026-01-29 22:45:17 INFO ImageFitter::fit+ 2026-01-29 22:45:17 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:45:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:45:17 INFO ImageFitter::fit+ --- region: 2026-01-29 22:45:17 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:45:17 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:45:17 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:45:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:45:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:45:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:45:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:17 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) 2026-01-29 22:45:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:45:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:45:17 INFO imstat::::casa ########################################## 2026-01-29 22:45:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:45:17 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 ) 2026-01-29 22:45:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:45:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:45:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:45:17 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:45:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:17 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) 2026-01-29 22:45:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:45:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:45:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:45:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:45:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:45:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:45:17 INFO imstat:::: Values --- 2026-01-29 22:45:17 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:45:17 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:45:17 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:45:17 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-01-29 22:45:17 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:45:17 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:45:17 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:45:17 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-01-29 22:45:17 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:45:17 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:45:17 INFO imstat:::: Statistics --- 2026-01-29 22:45:17 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:45:17 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:45:17 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:45:17 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:45:17 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-01-29 22:45:17 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-01-29 22:45:17 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-01-29 22:45:17 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-01-29 22:45:17 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-01-29 22:45:17 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:45:17 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:45:17 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:45:17 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:45:17 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:45:17 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:45:17 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 2026-01-29 22:45:17 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:45:17.427888 End time: 2026-01-29 22:45:17.456627 2026-01-29 22:45:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:45:17 INFO imstat::::casa ########################################## 2026-01-29 22:45:17 INFO phaseshift::::casa ########################################## 2026-01-29 22:45:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:45:17 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 19h53m49.9980 0.699877039rad' ) 2026-01-29 22:45:17 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:45:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:45:17 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:45:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:45:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:45:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:45:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:45:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:45:18 INFO MSTransformManager::open Select data 2026-01-29 22:45:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:45:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:45:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 0.699877039rad' successfully parsed 2026-01-29 22:45:19 INFO phaseshift::::casa Shift phase center 2026-01-29 22:45:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:45:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:45:17.473843 End time: 2026-01-29 22:45:19.864170 2026-01-29 22:45:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:45:20 INFO phaseshift::::casa ########################################## 2026-01-29 22:45:20 INFO tclean::::casa ########################################## 2026-01-29 22:45:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:45:20 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:45:20 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:45:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:45:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:45:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:45:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:45:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:45:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:45:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:45:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:45:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:45:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:45:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:45:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:45:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.018186 2026-01-29 22:45:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:45:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:45:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:45:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:45:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:45:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:45:22 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:45:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:45:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:45:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:45:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:45:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:45:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:45:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:45:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:45:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:45:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:45:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:45:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:45:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:45:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:45:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:45:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:45:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:45:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:45:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:45:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:45:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:45:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:45:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:45:28 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:45:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:45:30 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:45:19.923914 End time: 2026-01-29 22:45:29.539613 2026-01-29 22:45:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:45:30 INFO tclean::::casa ########################################## 2026-01-29 22:45:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:45:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:30 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) 2026-01-29 22:45:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:45:30 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:45:30 2026****** 2026-01-29 22:45:30 INFO ImageFitter::fit+ 2026-01-29 22:45:30 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:45:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:45:30 INFO ImageFitter::fit+ --- region: 2026-01-29 22:45:30 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:45:30 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:45:30 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:45:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:45:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:45:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:45:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:30 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) 2026-01-29 22:45:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:45:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:45:30 INFO imstat::::casa ########################################## 2026-01-29 22:45:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:45:30 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:45:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:45:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:45:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:45:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:45:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:30 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) 2026-01-29 22:45:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:45:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:45:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:45:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:45:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:45:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:45:30 INFO imstat:::: Values --- 2026-01-29 22:45:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:45:30 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:45:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:45:30 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-01-29 22:45:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:45:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:45:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:45:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-01-29 22:45:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:45:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:45:30 INFO imstat:::: Statistics --- 2026-01-29 22:45:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:45:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:45:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:45:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:45:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-01-29 22:45:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-01-29 22:45:30 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-01-29 22:45:30 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-01-29 22:45:30 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-01-29 22:45:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:45:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:45:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:45:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:45:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:45:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:45:30 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 2026-01-29 22:45:30 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:45:29.628082 End time: 2026-01-29 22:45:29.656639 2026-01-29 22:45:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:45:30 INFO imstat::::casa ########################################## 2026-01-29 22:45:30 INFO phaseshift::::casa ########################################## 2026-01-29 22:45:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:45:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40d06m0.0019' ) 2026-01-29 22:45:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:45:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:45:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:45:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:45:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:45:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:45:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:45:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:45:30 INFO MSTransformManager::open Select data 2026-01-29 22:45:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:45:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:45:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40d06m0.0019' successfully parsed 2026-01-29 22:45:33 INFO phaseshift::::casa Shift phase center 2026-01-29 22:45:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:45:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:45:29.674818 End time: 2026-01-29 22:45:33.678051 2026-01-29 22:45:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:45:34 INFO phaseshift::::casa ########################################## 2026-01-29 22:45:34 INFO tclean::::casa ########################################## 2026-01-29 22:45:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:45:34 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 ) 2026-01-29 22:45:34 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:45:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:45:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:45:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:45:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:45:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:45:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:45:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:45:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:45:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:45:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:45:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:45:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:45:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026303 2026-01-29 22:45:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:45:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:45:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:45:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:45:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:45:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:45:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:45:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:45:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:45:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:45:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:45:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:45:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:45:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:45:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:45:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:45:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:45:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:45:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:45:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:45:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:45:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:45:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:45:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:45:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:45:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:45:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:45:42 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:45:42 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:45:42 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:45:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:45:43 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:45:43 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:45:33.737570 End time: 2026-01-29 22:45:43.338291 2026-01-29 22:45:43 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:45:43 INFO tclean::::casa ########################################## 2026-01-29 22:45:43 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:45:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:43 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:45:43 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:45:43 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:45:43 2026****** 2026-01-29 22:45:43 INFO ImageFitter::fit+ 2026-01-29 22:45:43 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:45:43 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:45:43 INFO ImageFitter::fit+ --- region: 2026-01-29 22:45:43 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:45:43 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:45:43 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:45:43 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:45:43 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:45:43 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:45:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:43 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:45:43 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:45:43 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:45:43 INFO imstat::::casa ########################################## 2026-01-29 22:45:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:45:43 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:45:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:45:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:45:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:45:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:45:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:43 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:45:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:45:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:45:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:45:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:45:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:45:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:45:43 INFO imstat:::: Values --- 2026-01-29 22:45:43 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:45:43 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:45:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:45:43 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-01-29 22:45:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:45:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:45:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:45:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-01-29 22:45:43 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:45:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:45:43 INFO imstat:::: Statistics --- 2026-01-29 22:45:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:45:43 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:45:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:45:43 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:45:43 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-01-29 22:45:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-01-29 22:45:43 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-01-29 22:45:43 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-01-29 22:45:43 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-01-29 22:45:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:45:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:45:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:45:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:45:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:45:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:45:43 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 2026-01-29 22:45:43 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:45:43.420456 End time: 2026-01-29 22:45:43.448609 2026-01-29 22:45:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:45:43 INFO imstat::::casa ########################################## 2026-01-29 22:45:43 INFO phaseshift::::casa ########################################## 2026-01-29 22:45:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:45:43 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 02:40:24.0001' ) 2026-01-29 22:45:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:45:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:45:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:45:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:45:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:45:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:45:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:45:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:45:44 INFO MSTransformManager::open Select data 2026-01-29 22:45:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:45:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-01-29 22:45:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 02:40:24.0001' successfully parsed 2026-01-29 22:45:45 INFO phaseshift::::casa Shift phase center 2026-01-29 22:45:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:45:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:45:43.467385 End time: 2026-01-29 22:45:45.785461 2026-01-29 22:45:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:45:46 INFO phaseshift::::casa ########################################## 2026-01-29 22:45:46 INFO tclean::::casa ########################################## 2026-01-29 22:45:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:45:46 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:45:46 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:45:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:45:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:45:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:45:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:45:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:45:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:45:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:45:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:45:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:45:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:45:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:45:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:45:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028583 2026-01-29 22:45:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:45:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:45:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:45:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:45:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:45:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:45:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:45:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:45:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:45:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:45:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:45:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:45:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:45:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:45:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:45:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:45:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:45:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:45:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:45:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:45:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:45:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:45:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:45:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:45:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:45:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:45:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:45:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:45:52 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:45:52 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:45:52 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:45:52 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:45:52 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:45:53 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:45:45.840162 End time: 2026-01-29 22:45:53.132043 2026-01-29 22:45:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:45:53 INFO tclean::::casa ########################################## 2026-01-29 22:45:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:45:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:53 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) 2026-01-29 22:45:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:45:53 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:45:53 2026****** 2026-01-29 22:45:53 INFO ImageFitter::fit+ 2026-01-29 22:45:53 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:45:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:45:53 INFO ImageFitter::fit+ --- region: 2026-01-29 22:45:53 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:45:53 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:45:53 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:45:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:45:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:45:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:45:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:53 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) 2026-01-29 22:45:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:45:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:45:53 INFO imstat::::casa ########################################## 2026-01-29 22:45:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:45:53 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 ) 2026-01-29 22:45:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:45:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:45:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:45:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:45:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:45:53 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) 2026-01-29 22:45:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:45:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:45:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:45:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:45:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:45:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:45:53 INFO imstat:::: Values --- 2026-01-29 22:45:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:45:53 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:45:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:45:53 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-01-29 22:45:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:45:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:45:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:45:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-01-29 22:45:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:45:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:45:53 INFO imstat:::: Statistics --- 2026-01-29 22:45:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:45:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:45:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:45:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:45:53 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-01-29 22:45:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-01-29 22:45:53 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-01-29 22:45:53 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-01-29 22:45:53 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-01-29 22:45:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:45:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:45:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:45:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:45:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:45:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:45:53 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 2026-01-29 22:45:53 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:45:53.217819 End time: 2026-01-29 22:45:53.247932 2026-01-29 22:45:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:45:53 INFO imstat::::casa ########################################## 2026-01-29 22:45:53 INFO phaseshift::::casa ########################################## 2026-01-29 22:45:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:45:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40.100000528deg' ) 2026-01-29 22:45:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:45:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:45:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:45:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:45:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:45:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:45:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:45:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:45:53 INFO MSTransformManager::open Select data 2026-01-29 22:45:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:45:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:45:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40.100000528deg' successfully parsed 2026-01-29 22:45:55 INFO phaseshift::::casa Shift phase center 2026-01-29 22:45:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:45:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:45:53.266441 End time: 2026-01-29 22:45:55.434129 2026-01-29 22:45:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:45:55 INFO phaseshift::::casa ########################################## 2026-01-29 22:45:55 INFO tclean::::casa ########################################## 2026-01-29 22:45:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:45:55 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:45:55 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:45:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:45:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:45:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:45:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:45:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:45:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:45:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:45:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:45:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:45:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:45:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:45:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:45:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028948 2026-01-29 22:45:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:45:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:46:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:46:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:46:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:46:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:46:01 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:46:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:46:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:46:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:46:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:46:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:46:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:46:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:46:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:46:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:46:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:46:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:46:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:46:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:46:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:46:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:46:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:46:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:46:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:46:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:46:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:46:06 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:46:06 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:46:06 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:46:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:46:06 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:46:07 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:45:55.487154 End time: 2026-01-29 22:46:06.985674 2026-01-29 22:46:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:46:07 INFO tclean::::casa ########################################## 2026-01-29 22:46:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:46:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:07 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) 2026-01-29 22:46:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:46:07 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:46:07 2026****** 2026-01-29 22:46:07 INFO ImageFitter::fit+ 2026-01-29 22:46:07 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:46:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:46:07 INFO ImageFitter::fit+ --- region: 2026-01-29 22:46:07 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:46:07 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:46:07 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:46:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:46:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:46:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:46:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:07 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) 2026-01-29 22:46:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:46:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:46:07 INFO imstat::::casa ########################################## 2026-01-29 22:46:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:46:07 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 ) 2026-01-29 22:46:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:46:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:46:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:46:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:46:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:07 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) 2026-01-29 22:46:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:46:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:46:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:46:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:46:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:46:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:46:07 INFO imstat:::: Values --- 2026-01-29 22:46:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:46:07 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:46:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:46:07 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-01-29 22:46:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:46:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:46:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:46:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-01-29 22:46:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:46:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:46:07 INFO imstat:::: Statistics --- 2026-01-29 22:46:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:46:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:46:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:46:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:46:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-01-29 22:46:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-01-29 22:46:07 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-01-29 22:46:07 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-01-29 22:46:07 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-01-29 22:46:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:46:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:46:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:46:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:46:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:46:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:46:07 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 2026-01-29 22:46:07 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:46:07.080282 End time: 2026-01-29 22:46:07.112586 2026-01-29 22:46:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:46:07 INFO imstat::::casa ########################################## 2026-01-29 22:46:07 INFO phaseshift::::casa ########################################## 2026-01-29 22:46:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:46:07 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 0.699877039rad' ) 2026-01-29 22:46:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:46:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:46:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:46:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:46:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:46:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:46:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:46:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:46:07 INFO MSTransformManager::open Select data 2026-01-29 22:46:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:46:09 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:46:09 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 0.699877039rad' successfully parsed 2026-01-29 22:46:09 INFO phaseshift::::casa Shift phase center 2026-01-29 22:46:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:46:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:46:07.131853 End time: 2026-01-29 22:46:09.744438 2026-01-29 22:46:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:46:10 INFO phaseshift::::casa ########################################## 2026-01-29 22:46:10 INFO tclean::::casa ########################################## 2026-01-29 22:46:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:46:10 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 ) 2026-01-29 22:46:10 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:46:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:46:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:46:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:46:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:46:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:46:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:46:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:46:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:46:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:46:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:46:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:46:11 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:46:11 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026686 2026-01-29 22:46:11 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:46:11 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:46:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:46:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:46:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:46:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:46:12 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:46:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:46:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:46:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:46:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:46:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:46:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:46:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:46:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:46:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:46:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:46:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:46:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:46:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:46:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:46:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:46:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:46:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:46:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:46:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:46:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:46:15 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:46:15 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:46:15 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:46:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:46:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:46:16 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:46:09.802810 End time: 2026-01-29 22:46:16.474881 2026-01-29 22:46:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:46:16 INFO tclean::::casa ########################################## 2026-01-29 22:46:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:46:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:16 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) 2026-01-29 22:46:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:46:17 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:46:17 2026****** 2026-01-29 22:46:17 INFO ImageFitter::fit+ 2026-01-29 22:46:17 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:46:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:46:17 INFO ImageFitter::fit+ --- region: 2026-01-29 22:46:17 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:46:17 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:46:17 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:46:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:46:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:46:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:46:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:17 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) 2026-01-29 22:46:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:46:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:46:17 INFO imstat::::casa ########################################## 2026-01-29 22:46:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:46:17 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 ) 2026-01-29 22:46:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:46:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:46:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:46:17 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:46:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:17 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) 2026-01-29 22:46:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:46:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:46:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:46:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:46:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:46:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:46:17 INFO imstat:::: Values --- 2026-01-29 22:46:17 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:46:17 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:46:17 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:46:17 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-01-29 22:46:17 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:46:17 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:46:17 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:46:17 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-01-29 22:46:17 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:46:17 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:46:17 INFO imstat:::: Statistics --- 2026-01-29 22:46:17 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:46:17 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:46:17 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:46:17 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:46:17 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-01-29 22:46:17 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-01-29 22:46:17 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-01-29 22:46:17 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-01-29 22:46:17 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-01-29 22:46:17 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:46:17 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:46:17 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:46:17 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:46:17 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:46:17 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:46:17 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 2026-01-29 22:46:17 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:46:16.548786 End time: 2026-01-29 22:46:16.575715 2026-01-29 22:46:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:46:17 INFO imstat::::casa ########################################## 2026-01-29 22:46:17 INFO phaseshift::::casa ########################################## 2026-01-29 22:46:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:46:17 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 40d06m0.0019' ) 2026-01-29 22:46:17 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:46:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:46:17 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:46:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:46:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:46:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:46:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:46:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:46:17 INFO MSTransformManager::open Select data 2026-01-29 22:46:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:46:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:46:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40d06m0.0019' successfully parsed 2026-01-29 22:46:18 INFO phaseshift::::casa Shift phase center 2026-01-29 22:46:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:46:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:46:16.592854 End time: 2026-01-29 22:46:18.998338 2026-01-29 22:46:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:46:19 INFO phaseshift::::casa ########################################## 2026-01-29 22:46:19 INFO tclean::::casa ########################################## 2026-01-29 22:46:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:46:19 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 ) 2026-01-29 22:46:19 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:46:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:46:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:46:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:46:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:46:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:46:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:46:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:46:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:46:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:46:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:46:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:46:20 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:46:20 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020336 2026-01-29 22:46:20 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:46:20 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:46:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:46:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:46:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:46:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:46:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:46:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:46:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:46:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:46:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:46:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:46:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:46:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:46:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:46:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:46:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:46:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:46:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:46:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:46:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:46:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:46:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:46:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:46:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:46:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:46:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:46:24 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:46:24 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:46:24 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:46:25 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:46:25 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:46:26 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:46:19.038759 End time: 2026-01-29 22:46:25.767596 2026-01-29 22:46:26 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:46:26 INFO tclean::::casa ########################################## 2026-01-29 22:46:26 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:46:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:26 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:46:26 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:46:26 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:46:26 2026****** 2026-01-29 22:46:26 INFO ImageFitter::fit+ 2026-01-29 22:46:26 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:46:26 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:46:26 INFO ImageFitter::fit+ --- region: 2026-01-29 22:46:26 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:46:26 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:46:26 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:46:26 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:46:26 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:46:26 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:46:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:26 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:46:26 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:46:26 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:46:26 INFO imstat::::casa ########################################## 2026-01-29 22:46:26 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:46:26 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:46:26 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:46:26 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:46:26 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:46:26 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:46:26 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:26 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:46:26 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:46:26 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:46:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:46:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:46:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:46:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:46:26 INFO imstat:::: Values --- 2026-01-29 22:46:26 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:46:26 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:46:26 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:46:26 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-01-29 22:46:26 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:46:26 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:46:26 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:46:26 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-01-29 22:46:26 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:46:26 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:46:26 INFO imstat:::: Statistics --- 2026-01-29 22:46:26 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:46:26 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:46:26 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:46:26 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:46:26 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-01-29 22:46:26 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-01-29 22:46:26 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-01-29 22:46:26 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-01-29 22:46:26 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-01-29 22:46:26 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:46:26 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:46:26 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:46:26 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:46:26 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:46:26 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:46:26 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 2026-01-29 22:46:26 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:46:25.812607 End time: 2026-01-29 22:46:25.840631 2026-01-29 22:46:26 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:46:26 INFO imstat::::casa ########################################## 2026-01-29 22:46:26 INFO phaseshift::::casa ########################################## 2026-01-29 22:46:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:46:26 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 02:40:24.0001' ) 2026-01-29 22:46:26 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:46:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:46:26 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:46:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:46:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:46:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:46:26 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:46:26 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:46:26 INFO MSTransformManager::open Select data 2026-01-29 22:46:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:46:28 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-01-29 22:46:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 02:40:24.0001' successfully parsed 2026-01-29 22:46:28 INFO phaseshift::::casa Shift phase center 2026-01-29 22:46:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:46:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:46:25.853013 End time: 2026-01-29 22:46:28.139302 2026-01-29 22:46:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:46:28 INFO phaseshift::::casa ########################################## 2026-01-29 22:46:28 INFO tclean::::casa ########################################## 2026-01-29 22:46:28 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:46:28 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 ) 2026-01-29 22:46:28 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:46:28 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:46:28 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:46:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:46:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:46:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:46:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:46:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:46:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:46:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:46:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:46:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:46:29 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:46:29 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026442 2026-01-29 22:46:29 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:46:29 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:46:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:46:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:46:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:46:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:46:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:46:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:46:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:46:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:46:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:46:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:46:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:46:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:46:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:46:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:46:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:46:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:46:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:46:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:46:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:46:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:46:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:46:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:46:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:46:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:46:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:46:35 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:46:35 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:46:35 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:46:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:46:36 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:46:36 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:46:28.193575 End time: 2026-01-29 22:46:36.334393 2026-01-29 22:46:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:46:36 INFO tclean::::casa ########################################## 2026-01-29 22:46:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:46:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:36 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) 2026-01-29 22:46:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:46:36 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:46:36 2026****** 2026-01-29 22:46:36 INFO ImageFitter::fit+ 2026-01-29 22:46:36 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:46:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:46:36 INFO ImageFitter::fit+ --- region: 2026-01-29 22:46:36 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:46:36 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:46:36 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:46:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:46:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:46:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:46:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:36 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) 2026-01-29 22:46:36 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:46:36 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:46:36 INFO imstat::::casa ########################################## 2026-01-29 22:46:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:46:36 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 ) 2026-01-29 22:46:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:46:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:46:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:46:36 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:46:36 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:36 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) 2026-01-29 22:46:36 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:46:36 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:46:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:46:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:46:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:46:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:46:36 INFO imstat:::: Values --- 2026-01-29 22:46:36 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:46:36 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:46:36 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:46:36 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-01-29 22:46:36 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:46:36 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:46:36 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:46:36 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-01-29 22:46:36 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:46:36 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:46:36 INFO imstat:::: Statistics --- 2026-01-29 22:46:36 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:46:36 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:46:36 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:46:36 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:46:36 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-01-29 22:46:36 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-01-29 22:46:36 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-01-29 22:46:36 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-01-29 22:46:36 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-01-29 22:46:36 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:46:36 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:46:36 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:46:36 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:46:36 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:46:36 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:46:36 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 2026-01-29 22:46:36 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:46:36.408072 End time: 2026-01-29 22:46:36.435184 2026-01-29 22:46:36 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:46:36 INFO imstat::::casa ########################################## 2026-01-29 22:46:36 INFO phaseshift::::casa ########################################## 2026-01-29 22:46:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:46:36 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 298.458325000deg 40.100000528deg' ) 2026-01-29 22:46:36 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:46:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:46:36 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:46:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:46:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:46:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:46:36 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:46:36 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:46:36 INFO MSTransformManager::open Select data 2026-01-29 22:46:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:46:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:46:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40.100000528deg' successfully parsed 2026-01-29 22:46:38 INFO phaseshift::::casa Shift phase center 2026-01-29 22:46:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:46:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:46:36.452496 End time: 2026-01-29 22:46:38.888228 2026-01-29 22:46:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:46:39 INFO phaseshift::::casa ########################################## 2026-01-29 22:46:39 INFO tclean::::casa ########################################## 2026-01-29 22:46:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:46:39 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:46:39 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:46:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:46:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:46:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:46:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:46:39 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:46:39 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:46:39 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:46:39 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:46:39 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:46:39 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:46:39 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:46:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:46:40 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027116 2026-01-29 22:46:40 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:46:40 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:46:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:46:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:46:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:46:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:46:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:46:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:46:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:46:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:46:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:46:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:46:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:46:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:46:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:46:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:46:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:46:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:46:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:46:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:46:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:46:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:46:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:46:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:46:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:46:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:46:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:46:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:46:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:46:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:46:46 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:46:46 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:46:47 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:46:38.948158 End time: 2026-01-29 22:46:46.808383 2026-01-29 22:46:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:46:47 INFO tclean::::casa ########################################## 2026-01-29 22:46:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:46:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:47 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) 2026-01-29 22:46:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:46:47 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:46:47 2026****** 2026-01-29 22:46:47 INFO ImageFitter::fit+ 2026-01-29 22:46:47 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:46:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:46:47 INFO ImageFitter::fit+ --- region: 2026-01-29 22:46:47 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:46:47 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:46:47 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:46:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:46:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:46:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:46:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:47 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) 2026-01-29 22:46:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:46:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:46:47 INFO imstat::::casa ########################################## 2026-01-29 22:46:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:46:47 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 ) 2026-01-29 22:46:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:46:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:46:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:46:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:46:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:47 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) 2026-01-29 22:46:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:46:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:46:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:46:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:46:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:46:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:46:47 INFO imstat:::: Values --- 2026-01-29 22:46:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:46:47 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:46:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:46:47 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-01-29 22:46:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:46:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:46:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:46:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-01-29 22:46:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:46:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:46:47 INFO imstat:::: Statistics --- 2026-01-29 22:46:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:46:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:46:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:46:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:46:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-01-29 22:46:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-01-29 22:46:47 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-01-29 22:46:47 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-01-29 22:46:47 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-01-29 22:46:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:46:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:46:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:46:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:46:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:46:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:46:47 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 2026-01-29 22:46:47 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:46:46.883943 End time: 2026-01-29 22:46:46.911089 2026-01-29 22:46:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:46:47 INFO imstat::::casa ########################################## 2026-01-29 22:46:47 INFO phaseshift::::casa ########################################## 2026-01-29 22:46:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:46:47 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 0.699877039rad' ) 2026-01-29 22:46:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:46:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:46:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:46:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:46:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:46:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:46:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:46:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:46:47 INFO MSTransformManager::open Select data 2026-01-29 22:46:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:46:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:46:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 0.699877039rad' successfully parsed 2026-01-29 22:46:49 INFO phaseshift::::casa Shift phase center 2026-01-29 22:46:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:46:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:46:46.928223 End time: 2026-01-29 22:46:49.229676 2026-01-29 22:46:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:46:49 INFO phaseshift::::casa ########################################## 2026-01-29 22:46:49 INFO tclean::::casa ########################################## 2026-01-29 22:46:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:46:49 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:46:49 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:46:49 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:46:49 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:46:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:46:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:46:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:46:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:46:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:46:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:46:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:46:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:46:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:46:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:46:50 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020103 2026-01-29 22:46:50 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:46:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:46:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:46:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:46:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:46:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:46:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:46:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:46:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:46:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:46:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:46:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:46:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:46:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:46:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:46:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:46:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:46:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:46:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:46:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:46:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:46:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:46:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:46:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:46:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:46:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:46:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:46:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:46:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:46:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:46:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:46:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:46:56 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:46:57 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:46:49.287025 End time: 2026-01-29 22:46:57.005277 2026-01-29 22:46:57 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:46:57 INFO tclean::::casa ########################################## 2026-01-29 22:46:57 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:46:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:57 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) 2026-01-29 22:46:57 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:46:57 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:46:57 2026****** 2026-01-29 22:46:57 INFO ImageFitter::fit+ 2026-01-29 22:46:57 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:46:57 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:46:57 INFO ImageFitter::fit+ --- region: 2026-01-29 22:46:57 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:46:57 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:46:57 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:46:57 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:46:57 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:46:57 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:46:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:57 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) 2026-01-29 22:46:57 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:46:57 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:46:57 INFO imstat::::casa ########################################## 2026-01-29 22:46:57 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:46:57 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 ) 2026-01-29 22:46:57 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:46:57 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:46:57 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:46:57 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:46:57 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:46:57 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) 2026-01-29 22:46:57 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:46:57 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:46:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:46:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:46:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:46:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:46:57 INFO imstat:::: Values --- 2026-01-29 22:46:57 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:46:57 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:46:57 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:46:57 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-01-29 22:46:57 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:46:57 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:46:57 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:46:57 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-01-29 22:46:57 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:46:57 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:46:57 INFO imstat:::: Statistics --- 2026-01-29 22:46:57 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:46:57 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:46:57 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:46:57 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:46:57 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-01-29 22:46:57 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-01-29 22:46:57 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-01-29 22:46:57 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-01-29 22:46:57 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-01-29 22:46:57 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:46:57 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:46:57 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:46:57 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:46:57 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:46:57 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:46:57 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 2026-01-29 22:46:57 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:46:57.056439 End time: 2026-01-29 22:46:57.087441 2026-01-29 22:46:57 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:46:57 INFO imstat::::casa ########################################## 2026-01-29 22:46:57 INFO phaseshift::::casa ########################################## 2026-01-29 22:46:57 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:46:57 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40d06m0.0019' ) 2026-01-29 22:46:57 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:46:57 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:46:57 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:46:57 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:46:57 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:46:57 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:46:57 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:46:57 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:46:57 INFO MSTransformManager::open Select data 2026-01-29 22:46:57 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:46:59 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:46:59 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40d06m0.0019' successfully parsed 2026-01-29 22:46:59 INFO phaseshift::::casa Shift phase center 2026-01-29 22:46:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:46:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:46:57.115261 End time: 2026-01-29 22:46:59.432586 2026-01-29 22:46:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:46:59 INFO phaseshift::::casa ########################################## 2026-01-29 22:46:59 INFO tclean::::casa ########################################## 2026-01-29 22:46:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:46:59 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 ) 2026-01-29 22:46:59 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:47:00 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:47:00 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:47:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:47:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:47:00 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:47:00 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:47:00 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:47:00 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:47:00 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:47:00 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:47:00 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:47:00 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:47:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024687 2026-01-29 22:47:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:47:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:47:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:47:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:47:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:47:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:47:01 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:47:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:47:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:47:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:47:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:47:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:47:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:47:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:47:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:47:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:47:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:47:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:47:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:47:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:47:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:47:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:47:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:47:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:47:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:47:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:47:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:47:06 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:47:06 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:47:06 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:47:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:47:07 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:47:07 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:46:59.489257 End time: 2026-01-29 22:47:07.259012 2026-01-29 22:47:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:47:07 INFO tclean::::casa ########################################## 2026-01-29 22:47:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:47:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:07 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:47:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:47:07 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:47:07 2026****** 2026-01-29 22:47:07 INFO ImageFitter::fit+ 2026-01-29 22:47:07 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:47:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:47:07 INFO ImageFitter::fit+ --- region: 2026-01-29 22:47:07 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:47:07 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:47:07 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:47:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:47:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:47:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:47:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:07 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:47:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:47:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:47:07 INFO imstat::::casa ########################################## 2026-01-29 22:47:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:47:07 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:47:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:47:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:47:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:47:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:47:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:07 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:47:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:47:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:47:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:47:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:47:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:47:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:47:07 INFO imstat:::: Values --- 2026-01-29 22:47:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:47:07 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:47:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:47:07 INFO imstat:::: -- minimum value [min]: -7.77984e-05 Jy/beam 2026-01-29 22:47:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:47:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:47:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:47:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-01-29 22:47:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:47:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:47:07 INFO imstat:::: Statistics --- 2026-01-29 22:47:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:47:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:47:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:47:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:47:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86704e-05 Jy/beam 2026-01-29 22:47:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7365e-05 Jy/beam 2026-01-29 22:47:07 INFO imstat:::: -- IQR [quartile]: 3.56348e-05 Jy/beam 2026-01-29 22:47:07 INFO imstat:::: -- First quartile [q1]: -3.45131e-05 Jy/beam 2026-01-29 22:47:07 INFO imstat:::: -- Third quartile [q3]: 1.12172e-06 Jy/beam 2026-01-29 22:47:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:47:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:47:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:47:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:47:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:47:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:47:07 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 2026-01-29 22:47:07 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:47:07.336028 End time: 2026-01-29 22:47:07.363093 2026-01-29 22:47:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:47:07 INFO imstat::::casa ########################################## 2026-01-29 22:47:07 INFO phaseshift::::casa ########################################## 2026-01-29 22:47:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:47:07 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 02:40:24.0001' ) 2026-01-29 22:47:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:47:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:47:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:47:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:47:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:47:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:47:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:47:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:47:07 INFO MSTransformManager::open Select data 2026-01-29 22:47:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:47:09 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 ".". 2026-01-29 22:47:09 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 02:40:24.0001' successfully parsed 2026-01-29 22:47:09 INFO phaseshift::::casa Shift phase center 2026-01-29 22:47:09 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:47:09 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:47:07.381012 End time: 2026-01-29 22:47:09.459722 2026-01-29 22:47:09 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:47:09 INFO phaseshift::::casa ########################################## 2026-01-29 22:47:10 INFO tclean::::casa ########################################## 2026-01-29 22:47:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:47:10 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:47:10 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:47:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:47:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:47:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:47:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:47:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:47:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:47:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:47:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:47:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:47:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:47:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:47:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:47:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025482 2026-01-29 22:47:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:47:11 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:47:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:47:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:47:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:47:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:47:12 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:47:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:47:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:47:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:47:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:47:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:47:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:47:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:47:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:47:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:47:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:47:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:47:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:47:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:47:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:47:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:47:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:47:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:47:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:47:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:47:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:47:15 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:47:15 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:47:15 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:47:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:47:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:47:17 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:47:09.507309 End time: 2026-01-29 22:47:16.511758 2026-01-29 22:47:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:47:17 INFO tclean::::casa ########################################## 2026-01-29 22:47:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:47:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:17 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) 2026-01-29 22:47:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:47:17 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:47:17 2026****** 2026-01-29 22:47:17 INFO ImageFitter::fit+ 2026-01-29 22:47:17 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:47:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:47:17 INFO ImageFitter::fit+ --- region: 2026-01-29 22:47:17 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:47:17 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:47:17 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:47:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:47:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:47:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:47:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:17 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) 2026-01-29 22:47:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116894 Jy 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126508 Jy 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:47:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:47:17 INFO imstat::::casa ########################################## 2026-01-29 22:47:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:47:17 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 ) 2026-01-29 22:47:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:47:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:47:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:47:17 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:47:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:17 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) 2026-01-29 22:47:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:47:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:47:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:47:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:47:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:47:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:47:17 INFO imstat:::: Values --- 2026-01-29 22:47:17 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:47:17 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:47:17 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:47:17 INFO imstat:::: -- minimum value [min]: -7.78076e-05 Jy/beam 2026-01-29 22:47:17 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:47:17 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:47:17 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:47:17 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-01-29 22:47:17 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:47:17 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:47:17 INFO imstat:::: Statistics --- 2026-01-29 22:47:17 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:47:17 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:47:17 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:47:17 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:47:17 INFO imstat:::: -- Median of the pixel values [median]: -1.86848e-05 Jy/beam 2026-01-29 22:47:17 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73951e-05 Jy/beam 2026-01-29 22:47:17 INFO imstat:::: -- IQR [quartile]: 3.56676e-05 Jy/beam 2026-01-29 22:47:17 INFO imstat:::: -- First quartile [q1]: -3.45186e-05 Jy/beam 2026-01-29 22:47:17 INFO imstat:::: -- Third quartile [q3]: 1.14894e-06 Jy/beam 2026-01-29 22:47:17 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:47:17 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:47:17 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:47:17 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:47:17 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:47:17 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:47:17 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 2026-01-29 22:47:17 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:47:16.600472 End time: 2026-01-29 22:47:16.630413 2026-01-29 22:47:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:47:17 INFO imstat::::casa ########################################## 2026-01-29 22:47:17 INFO phaseshift::::casa ########################################## 2026-01-29 22:47:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:47:17 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 5.209080451rad 40.100000528deg' ) 2026-01-29 22:47:17 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:47:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:47:17 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:47:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:47:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:47:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:47:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:47:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:47:17 INFO MSTransformManager::open Select data 2026-01-29 22:47:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:47:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:47:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40.100000528deg' successfully parsed 2026-01-29 22:47:18 INFO phaseshift::::casa Shift phase center 2026-01-29 22:47:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:47:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:47:16.648689 End time: 2026-01-29 22:47:19.064107 2026-01-29 22:47:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:47:19 INFO phaseshift::::casa ########################################## 2026-01-29 22:47:19 INFO tclean::::casa ########################################## 2026-01-29 22:47:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:47:19 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 ) 2026-01-29 22:47:19 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:47:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:47:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:47:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:47:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:47:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:47:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:47:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:47:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:47:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:47:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:47:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:47:20 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:47:20 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.018813 2026-01-29 22:47:20 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:47:20 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:47:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:47:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:47:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:47:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:47:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:47:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:47:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:47:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:47:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:47:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:47:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:47:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:47:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:47:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:47:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:47:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:47:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:47:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:47:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:47:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:47:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:47:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:47:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:47:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:47:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:47:24 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:47:24 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:47:24 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:47:25 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:47:25 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:47:26 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:47:19.116615 End time: 2026-01-29 22:47:25.779249 2026-01-29 22:47:26 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:47:26 INFO tclean::::casa ########################################## 2026-01-29 22:47:26 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:47:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:26 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:47:26 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:47:26 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:47:26 2026****** 2026-01-29 22:47:26 INFO ImageFitter::fit+ 2026-01-29 22:47:26 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:47:26 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:47:26 INFO ImageFitter::fit+ --- region: 2026-01-29 22:47:26 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:47:26 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:47:26 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:47:26 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:47:26 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:47:26 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:47:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:26 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:47:26 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116882 Jy 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:47:26 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:47:26 INFO imstat::::casa ########################################## 2026-01-29 22:47:26 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:47:26 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:47:26 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:47:26 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:47:26 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:47:26 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:47:26 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:26 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:47:26 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:47:26 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:47:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:47:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:47:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:47:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:47:26 INFO imstat:::: Values --- 2026-01-29 22:47:26 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:47:26 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:47:26 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:47:26 INFO imstat:::: -- minimum value [min]: -7.77982e-05 Jy/beam 2026-01-29 22:47:26 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:47:26 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:47:26 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:47:26 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-01-29 22:47:26 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:47:26 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:47:26 INFO imstat:::: Statistics --- 2026-01-29 22:47:26 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:47:26 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:47:26 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:47:26 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:47:26 INFO imstat:::: -- Median of the pixel values [median]: -1.86711e-05 Jy/beam 2026-01-29 22:47:26 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73646e-05 Jy/beam 2026-01-29 22:47:26 INFO imstat:::: -- IQR [quartile]: 3.56367e-05 Jy/beam 2026-01-29 22:47:26 INFO imstat:::: -- First quartile [q1]: -3.45138e-05 Jy/beam 2026-01-29 22:47:26 INFO imstat:::: -- Third quartile [q3]: 1.12291e-06 Jy/beam 2026-01-29 22:47:26 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:47:26 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:47:26 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:47:26 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:47:26 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:47:26 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:47:26 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 2026-01-29 22:47:26 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:47:25.861555 End time: 2026-01-29 22:47:25.901308 2026-01-29 22:47:26 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:47:26 INFO imstat::::casa ########################################## 2026-01-29 22:47:26 INFO phaseshift::::casa ########################################## 2026-01-29 22:47:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:47:26 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 0.699877039rad' ) 2026-01-29 22:47:26 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:47:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:47:26 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:47:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:47:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:47:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:47:26 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:47:26 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:47:26 INFO MSTransformManager::open Select data 2026-01-29 22:47:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:47:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:47:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 0.699877039rad' successfully parsed 2026-01-29 22:47:27 INFO phaseshift::::casa Shift phase center 2026-01-29 22:47:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:47:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:47:25.918103 End time: 2026-01-29 22:47:27.806787 2026-01-29 22:47:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:47:28 INFO phaseshift::::casa ########################################## 2026-01-29 22:47:28 INFO tclean::::casa ########################################## 2026-01-29 22:47:28 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:47:28 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 ) 2026-01-29 22:47:28 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:47:28 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:47:28 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:47:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:47:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:47:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:47:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:47:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:47:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:47:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:47:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:47:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:47:29 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:47:29 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.030111 2026-01-29 22:47:29 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:47:29 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:47:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:47:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:47:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:47:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:47:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:47:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:47:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:47:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:47:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:47:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:47:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:47:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:47:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:47:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:47:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:47:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374443277716637, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:47:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:47:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:47:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:47:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:47:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852561634033918, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:47:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:47:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:47:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:47:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:47:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:47:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:47:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:47:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:47:34 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:47:35 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:47:27.838705 End time: 2026-01-29 22:47:34.976924 2026-01-29 22:47:35 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:47:35 INFO tclean::::casa ########################################## 2026-01-29 22:47:35 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:47:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:35 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:47:35 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:47:35 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:47:35 2026****** 2026-01-29 22:47:35 INFO ImageFitter::fit+ 2026-01-29 22:47:35 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:47:35 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:47:35 INFO ImageFitter::fit+ --- region: 2026-01-29 22:47:35 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:47:35 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:47:35 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:47:35 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:47:35 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:47:35 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:47:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:35 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:47:35 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:47:35 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:47:35 INFO imstat::::casa ########################################## 2026-01-29 22:47:35 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:47:35 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:47:35 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:47:35 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:47:35 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:47:35 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:47:35 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:35 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:47:35 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:47:35 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:47:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:47:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:47:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:47:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:47:35 INFO imstat:::: Values --- 2026-01-29 22:47:35 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:47:35 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:47:35 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:47:35 INFO imstat:::: -- minimum value [min]: -7.77898e-05 Jy/beam 2026-01-29 22:47:35 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:47:35 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:47:35 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:47:35 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-01-29 22:47:35 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:47:35 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:47:35 INFO imstat:::: Statistics --- 2026-01-29 22:47:35 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:47:35 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:47:35 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:47:35 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:47:35 INFO imstat:::: -- Median of the pixel values [median]: -1.86769e-05 Jy/beam 2026-01-29 22:47:35 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73662e-05 Jy/beam 2026-01-29 22:47:35 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-01-29 22:47:35 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-01-29 22:47:35 INFO imstat:::: -- Third quartile [q3]: 1.1187e-06 Jy/beam 2026-01-29 22:47:35 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:47:35 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:47:35 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:47:35 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:47:35 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:47:35 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:47:35 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 2026-01-29 22:47:35 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:47:35.049321 End time: 2026-01-29 22:47:35.076729 2026-01-29 22:47:35 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:47:35 INFO imstat::::casa ########################################## 2026-01-29 22:47:35 INFO phaseshift::::casa ########################################## 2026-01-29 22:47:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:47:35 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 +006d21m09.7433' ) 2026-01-29 22:47:35 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:47:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:47:35 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:47:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:47:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:47:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:47:35 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:47:35 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:47:35 INFO MSTransformManager::open Select data 2026-01-29 22:47:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:47:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:47:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 +006d21m09.7433' successfully parsed 2026-01-29 22:47:38 INFO phaseshift::::casa Shift phase center 2026-01-29 22:47:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:47:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:47:35.094771 End time: 2026-01-29 22:47:40.207037 2026-01-29 22:47:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:47:40 INFO phaseshift::::casa ########################################## 2026-01-29 22:47:40 INFO tclean::::casa ########################################## 2026-01-29 22:47:40 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:47:40 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 ) 2026-01-29 22:47:40 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:47:40 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:47:40 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:47:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:47:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:47:40 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:47:40 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:47:40 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:47:40 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:47:40 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:47:40 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:47:40 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:47:41 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:47:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017316 2026-01-29 22:47:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:47:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:47:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:47:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:47:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:47:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:47:43 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:47:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:47:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:47:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:47:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:47:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:47:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:47:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:47:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:47:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:47:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:47:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:47:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:47:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:47:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:47:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:47:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:47:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:47:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:47:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:47:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:47:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:47:50 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:47:50 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:47:50 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:47:52 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:47:52 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:47:53 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:47:40.264063 End time: 2026-01-29 22:47:52.810738 2026-01-29 22:47:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:47:53 INFO tclean::::casa ########################################## 2026-01-29 22:47:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:47:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:53 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) 2026-01-29 22:47:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:47:53 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:47:53 2026****** 2026-01-29 22:47:53 INFO ImageFitter::fit+ 2026-01-29 22:47:53 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:47:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:47:53 INFO ImageFitter::fit+ --- region: 2026-01-29 22:47:53 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:47:53 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:47:53 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:47:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:47:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:47:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:47:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:53 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) 2026-01-29 22:47:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:47:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:47:53 INFO imstat::::casa ########################################## 2026-01-29 22:47:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:47:53 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 ) 2026-01-29 22:47:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:47:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:47:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:47:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:47:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:47:53 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) 2026-01-29 22:47:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:47:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:47:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:47:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:47:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:47:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:47:53 INFO imstat:::: Values --- 2026-01-29 22:47:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:47:53 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:47:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:47:53 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-01-29 22:47:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:47:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:47:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:47:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:47:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:47:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:47:53 INFO imstat:::: Statistics --- 2026-01-29 22:47:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:47:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:47:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:47:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:47:53 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-01-29 22:47:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-01-29 22:47:53 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-01-29 22:47:53 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-01-29 22:47:53 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-01-29 22:47:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:47:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:47:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:47:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:47:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:47:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:47:53 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 2026-01-29 22:47:53 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:47:52.892807 End time: 2026-01-29 22:47:52.935605 2026-01-29 22:47:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:47:53 INFO imstat::::casa ########################################## 2026-01-29 22:47:53 INFO phaseshift::::casa ########################################## 2026-01-29 22:47:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:47:53 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 05h00m21.5326 00:25:24.6496' ) 2026-01-29 22:47:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:47:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:47:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:47:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:47:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:47:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:47:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:47:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:47:53 INFO MSTransformManager::open Select data 2026-01-29 22:47:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:47:56 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 ".". 2026-01-29 22:47:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 00:25:24.6496' successfully parsed 2026-01-29 22:47:56 INFO phaseshift::::casa Shift phase center 2026-01-29 22:47:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:47:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:47:52.952396 End time: 2026-01-29 22:47:56.673683 2026-01-29 22:47:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:47:57 INFO phaseshift::::casa ########################################## 2026-01-29 22:47:57 INFO tclean::::casa ########################################## 2026-01-29 22:47:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:47:57 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 ) 2026-01-29 22:47:57 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:47:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:47:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:47:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:47:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:47:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:47:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:47:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:47:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:47:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:47:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:47:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:47:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:47:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027353 2026-01-29 22:47:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:47:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:48:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:48:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:48:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:48:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:48:01 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:48:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:48:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:48:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:48:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:48:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:48:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:48:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:48:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:48:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:48:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:48:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:48:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:48:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:48:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:48:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:48:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:48:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:48:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:48:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:48:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:48:06 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:48:06 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:48:06 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:48:07 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:48:07 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:48:09 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:47:56.726321 End time: 2026-01-29 22:48:08.867480 2026-01-29 22:48:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:48:09 INFO tclean::::casa ########################################## 2026-01-29 22:48:09 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:48:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:48:09 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) 2026-01-29 22:48:09 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:48:09 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:48:09 2026****** 2026-01-29 22:48:09 INFO ImageFitter::fit+ 2026-01-29 22:48:09 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:48:09 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:48:09 INFO ImageFitter::fit+ --- region: 2026-01-29 22:48:09 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:48:09 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:48:09 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:48:09 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:48:09 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:48:09 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:48:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:48:09 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) 2026-01-29 22:48:09 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:48:09 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:48:09 INFO imstat::::casa ########################################## 2026-01-29 22:48:09 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:48:09 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 ) 2026-01-29 22:48:09 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:48:09 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:48:09 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:48:09 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:48:09 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:48:09 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) 2026-01-29 22:48:09 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:48:09 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:48:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:48:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:48:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-01-29 22:48:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-01-29 22:48:09 INFO imstat:::: Values --- 2026-01-29 22:48:09 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:48:09 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:48:09 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:48:09 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-01-29 22:48:09 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:48:09 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:48:09 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:48:09 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:48:09 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:48:09 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:48:09 INFO imstat:::: Statistics --- 2026-01-29 22:48:09 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:48:09 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:48:09 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:48:09 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:48:09 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-01-29 22:48:09 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-01-29 22:48:09 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-01-29 22:48:09 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-01-29 22:48:09 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-01-29 22:48:09 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:48:09 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:48:09 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:48:09 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:48:09 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:48:09 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:48:09 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 2026-01-29 22:48:09 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:48:08.941283 End time: 2026-01-29 22:48:08.981073 2026-01-29 22:48:09 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:48:09 INFO imstat::::casa ########################################## 2026-01-29 22:48:09 INFO phaseshift::::casa ########################################## 2026-01-29 22:48:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:48:09 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 05h00m21.5326 6.352706472deg' ) 2026-01-29 22:48:09 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:48:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:48:09 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:48:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:48:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:48:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:48:09 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:48:09 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:48:09 INFO MSTransformManager::open Select data 2026-01-29 22:48:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:48:11 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:48:11 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 6.352706472deg' successfully parsed 2026-01-29 22:48:11 INFO phaseshift::::casa Shift phase center 2026-01-29 22:48:11 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:48:11 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:48:08.997001 End time: 2026-01-29 22:48:11.445545 2026-01-29 22:48:11 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:48:11 INFO phaseshift::::casa ########################################## 2026-01-29 22:48:11 INFO tclean::::casa ########################################## 2026-01-29 22:48:11 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:48:11 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 ) 2026-01-29 22:48:11 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:48:12 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:48:12 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:48:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:48:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:48:12 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:48:12 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:48:12 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:48:12 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:48:12 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:48:12 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:48:12 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:48:13 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:48:13 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028973 2026-01-29 22:48:13 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:48:13 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:48:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:48:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:48:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:48:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:48:15 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:48:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:48:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:48:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:48:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:48:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:48:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:48:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:48:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:48:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:48:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:48:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:48:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:48:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:48:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:48:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:48:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:48:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:48:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:48:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:48:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:48:19 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:48:19 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:48:19 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:48:21 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:48:21 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:48:23 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:48:11.496008 End time: 2026-01-29 22:48:22.636141 2026-01-29 22:48:23 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:48:23 INFO tclean::::casa ########################################## 2026-01-29 22:48:23 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:48:23 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:48:23 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:48:23 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:48:23 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:48:23 2026****** 2026-01-29 22:48:23 INFO ImageFitter::fit+ 2026-01-29 22:48:23 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:48:23 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:48:23 INFO ImageFitter::fit+ --- region: 2026-01-29 22:48:23 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:48:23 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:48:23 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:48:23 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:48:23 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:48:23 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:48:23 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:48:23 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:48:23 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:48:23 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:48:23 INFO imstat::::casa ########################################## 2026-01-29 22:48:23 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:48:23 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:48:23 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:48:23 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:48:23 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:48:23 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:48:23 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:48:23 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:48:23 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:48:23 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:48:23 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:48:23 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:48:23 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:48:23 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:48:23 INFO imstat:::: Values --- 2026-01-29 22:48:23 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:48:23 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:48:23 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:48:23 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-01-29 22:48:23 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:48:23 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:48:23 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:48:23 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:48:23 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:48:23 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:48:23 INFO imstat:::: Statistics --- 2026-01-29 22:48:23 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:48:23 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:48:23 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:48:23 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:48:23 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-01-29 22:48:23 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-01-29 22:48:23 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-01-29 22:48:23 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-01-29 22:48:23 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-01-29 22:48:23 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:48:23 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:48:23 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:48:23 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:48:23 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:48:23 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:48:23 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 2026-01-29 22:48:23 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:48:22.715156 End time: 2026-01-29 22:48:22.744229 2026-01-29 22:48:23 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:48:23 INFO imstat::::casa ########################################## 2026-01-29 22:48:23 INFO phaseshift::::casa ########################################## 2026-01-29 22:48:23 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:48:23 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 0.110875644rad' ) 2026-01-29 22:48:23 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:48:23 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:48:23 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:48:23 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:48:23 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:48:23 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:48:23 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:48:23 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:48:23 INFO MSTransformManager::open Select data 2026-01-29 22:48:23 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:48:25 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:48:25 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 0.110875644rad' successfully parsed 2026-01-29 22:48:25 INFO phaseshift::::casa Shift phase center 2026-01-29 22:48:26 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:48:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:48:22.761696 End time: 2026-01-29 22:48:25.744983 2026-01-29 22:48:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:48:26 INFO phaseshift::::casa ########################################## 2026-01-29 22:48:26 INFO tclean::::casa ########################################## 2026-01-29 22:48:26 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:48:26 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 ) 2026-01-29 22:48:26 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:48:26 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:48:26 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:48:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:48:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:48:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:48:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:48:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:48:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:48:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:48:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:48:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:48:27 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:48:27 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025098 2026-01-29 22:48:27 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:48:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:48:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:48:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:48:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:48:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:48:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:48:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:48:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:48:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:48:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:48:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:48:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:48:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:48:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:48:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:48:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:48:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:48:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:48:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:48:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:48:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:48:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:48:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:48:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:48:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:48:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:48:35 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:48:35 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:48:35 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:48:35 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:48:35 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:48:36 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:48:25.801075 End time: 2026-01-29 22:48:36.446740 2026-01-29 22:48:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:48:36 INFO tclean::::casa ########################################## 2026-01-29 22:48:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:48:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:48:36 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) 2026-01-29 22:48:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:48:36 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:48:36 2026****** 2026-01-29 22:48:36 INFO ImageFitter::fit+ 2026-01-29 22:48:36 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:48:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:48:36 INFO ImageFitter::fit+ --- region: 2026-01-29 22:48:36 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:48:36 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:48:36 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:48:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:48:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:48:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:48:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:48:36 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) 2026-01-29 22:48:37 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:48:37 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:48:37 INFO imstat::::casa ########################################## 2026-01-29 22:48:37 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:48:37 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 ) 2026-01-29 22:48:37 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:48:37 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:48:37 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:48:37 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:48:37 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:48:37 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) 2026-01-29 22:48:37 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:48:37 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:48:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:48:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:48:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:48:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:48:37 INFO imstat:::: Values --- 2026-01-29 22:48:37 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:48:37 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:48:37 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:48:37 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-01-29 22:48:37 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:48:37 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:48:37 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:48:37 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-01-29 22:48:37 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:48:37 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:48:37 INFO imstat:::: Statistics --- 2026-01-29 22:48:37 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:48:37 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:48:37 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:48:37 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:48:37 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-01-29 22:48:37 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-01-29 22:48:37 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-01-29 22:48:37 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-01-29 22:48:37 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-01-29 22:48:37 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:48:37 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:48:37 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:48:37 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:48:37 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:48:37 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:48:37 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 2026-01-29 22:48:37 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:48:36.521380 End time: 2026-01-29 22:48:36.548126 2026-01-29 22:48:37 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:48:37 INFO imstat::::casa ########################################## 2026-01-29 22:48:37 INFO phaseshift::::casa ########################################## 2026-01-29 22:48:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:48:37 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 +006d21m09.7433' ) 2026-01-29 22:48:37 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:48:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:48:37 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:48:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:48:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:48:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:48:37 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:48:37 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:48:37 INFO MSTransformManager::open Select data 2026-01-29 22:48:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:48:40 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:48:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 +006d21m09.7433' successfully parsed 2026-01-29 22:48:40 INFO phaseshift::::casa Shift phase center 2026-01-29 22:48:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:48:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:48:36.565662 End time: 2026-01-29 22:48:40.455680 2026-01-29 22:48:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:48:40 INFO phaseshift::::casa ########################################## 2026-01-29 22:48:41 INFO tclean::::casa ########################################## 2026-01-29 22:48:41 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:48:41 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 ) 2026-01-29 22:48:41 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:48:41 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:48:41 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:48:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:48:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:48:41 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:48:41 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:48:41 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:48:41 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:48:41 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:48:41 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:48:41 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:48:41 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:48:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.019875 2026-01-29 22:48:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:48:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:48:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:48:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:48:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:48:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:48:42 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:48:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:48:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:48:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:48:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:48:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:48:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:48:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:48:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:48:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:48:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:48:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:48:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:48:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:48:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:48:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:48:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:48:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:48:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:48:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:48:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:48:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:48:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:48:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:48:48 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:48:48 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:48:49 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:48:40.508339 End time: 2026-01-29 22:48:48.633341 2026-01-29 22:48:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:48:49 INFO tclean::::casa ########################################## 2026-01-29 22:48:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:48:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:48:49 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:48:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:48:49 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:48:49 2026****** 2026-01-29 22:48:49 INFO ImageFitter::fit+ 2026-01-29 22:48:49 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:48:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:48:49 INFO ImageFitter::fit+ --- region: 2026-01-29 22:48:49 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:48:49 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:48:49 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:48:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:48:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:48:49 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:48:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:48:49 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:48:49 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:48:49 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:48:49 INFO imstat::::casa ########################################## 2026-01-29 22:48:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:48:49 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 ) 2026-01-29 22:48:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:48:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:48:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:48:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:48:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:48:49 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:48:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:48:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:48:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:48:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:48:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:48:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:48:49 INFO imstat:::: Values --- 2026-01-29 22:48:49 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:48:49 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:48:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:48:49 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-01-29 22:48:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:48:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:48:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:48:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:48:49 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:48:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:48:49 INFO imstat:::: Statistics --- 2026-01-29 22:48:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:48:49 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:48:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:48:49 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:48:49 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-01-29 22:48:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-01-29 22:48:49 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-01-29 22:48:49 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-01-29 22:48:49 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-01-29 22:48:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:48:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:48:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:48:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:48:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:48:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:48:49 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 2026-01-29 22:48:49 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:48:48.709372 End time: 2026-01-29 22:48:48.738207 2026-01-29 22:48:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:48:49 INFO imstat::::casa ########################################## 2026-01-29 22:48:49 INFO phaseshift::::casa ########################################## 2026-01-29 22:48:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:48:49 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 00:25:24.6496' ) 2026-01-29 22:48:49 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:48:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:48:49 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:48:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:48:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:48:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:48:49 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:48:49 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:48:49 INFO MSTransformManager::open Select data 2026-01-29 22:48:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:48:51 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-01-29 22:48:51 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 00:25:24.6496' successfully parsed 2026-01-29 22:48:51 INFO phaseshift::::casa Shift phase center 2026-01-29 22:48:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:48:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:48:48.758612 End time: 2026-01-29 22:48:52.274062 2026-01-29 22:48:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:48:52 INFO phaseshift::::casa ########################################## 2026-01-29 22:48:52 INFO tclean::::casa ########################################## 2026-01-29 22:48:52 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:48:52 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:48:52 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:48:52 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:48:52 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:48:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:48:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:48:52 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:48:52 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:48:52 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:48:52 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:48:52 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:48:52 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:48:52 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:48:53 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:48:53 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023607 2026-01-29 22:48:53 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:48:53 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:48:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:48:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:48:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:48:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:48:55 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:48:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:48:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:48:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:48:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:48:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:48:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:48:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:48:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:48:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:48:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:48:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:48:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:48:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:48:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:48:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:48:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:48:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:48:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:48:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:48:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:49:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:49:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:49:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:49:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:49:01 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:49:01 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:49:02 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:48:52.329428 End time: 2026-01-29 22:49:01.817850 2026-01-29 22:49:02 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:49:02 INFO tclean::::casa ########################################## 2026-01-29 22:49:02 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:49:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:02 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:49:02 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:49:02 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:49:02 2026****** 2026-01-29 22:49:02 INFO ImageFitter::fit+ 2026-01-29 22:49:02 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:49:02 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:49:02 INFO ImageFitter::fit+ --- region: 2026-01-29 22:49:02 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:49:02 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:49:02 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:49:02 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:49:02 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:49:02 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:49:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:02 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:49:02 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:49:02 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:49:02 INFO imstat::::casa ########################################## 2026-01-29 22:49:02 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:49:02 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:49:02 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:49:02 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:49:02 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:49:02 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:49:02 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:02 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-01-29 22:49:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:49:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:49:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:49:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:49:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-01-29 22:49:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-01-29 22:49:02 INFO imstat:::: Values --- 2026-01-29 22:49:02 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:49:02 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:49:02 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:49:02 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-01-29 22:49:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:49:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:49:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:49:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:49:02 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:49:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:49:02 INFO imstat:::: Statistics --- 2026-01-29 22:49:02 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:49:02 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:49:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:49:02 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:49:02 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-01-29 22:49:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-01-29 22:49:02 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-01-29 22:49:02 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-01-29 22:49:02 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-01-29 22:49:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:49:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:49:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:49:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:49:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:49:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:49:02 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 2026-01-29 22:49:02 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:49:01.901623 End time: 2026-01-29 22:49:01.930805 2026-01-29 22:49:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:49:02 INFO imstat::::casa ########################################## 2026-01-29 22:49:02 INFO phaseshift::::casa ########################################## 2026-01-29 22:49:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:49:02 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 6.352706472deg' ) 2026-01-29 22:49:02 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:49:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:49:02 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:49:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:49:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:49:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:49:02 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:49:02 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:49:02 INFO MSTransformManager::open Select data 2026-01-29 22:49:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:49:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:49:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 6.352706472deg' successfully parsed 2026-01-29 22:49:04 INFO phaseshift::::casa Shift phase center 2026-01-29 22:49:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:49:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:49:01.948928 End time: 2026-01-29 22:49:05.247003 2026-01-29 22:49:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:49:05 INFO phaseshift::::casa ########################################## 2026-01-29 22:49:05 INFO tclean::::casa ########################################## 2026-01-29 22:49:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:49:05 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:49:05 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:49:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:49:05 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:49:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:49:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:49:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:49:05 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:49:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:49:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:49:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:49:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:49:05 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:49:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:49:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024972 2026-01-29 22:49:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:49:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:49:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:49:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:49:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:49:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:49:09 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:49:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:49:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:49:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:49:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:49:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:49:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:49:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:49:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:49:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:49:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:49:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:49:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:49:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:49:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:49:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:49:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:49:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:49:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:49:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:49:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:49:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:49:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:49:13 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:49:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:49:14 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:49:15 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:49:05.306147 End time: 2026-01-29 22:49:14.951211 2026-01-29 22:49:15 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:49:15 INFO tclean::::casa ########################################## 2026-01-29 22:49:15 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:49:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:15 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) 2026-01-29 22:49:15 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:49:15 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:49:15 2026****** 2026-01-29 22:49:15 INFO ImageFitter::fit+ 2026-01-29 22:49:15 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:49:15 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:49:15 INFO ImageFitter::fit+ --- region: 2026-01-29 22:49:15 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:49:15 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:49:15 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:49:15 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:49:15 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:49:15 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:49:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:15 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) 2026-01-29 22:49:15 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:49:15 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:49:15 INFO imstat::::casa ########################################## 2026-01-29 22:49:15 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:49:15 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 ) 2026-01-29 22:49:15 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:49:15 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:49:15 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:49:15 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:49:15 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:15 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) 2026-01-29 22:49:15 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:49:15 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:49:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:49:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:49:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:49:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:49:15 INFO imstat:::: Values --- 2026-01-29 22:49:15 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:49:15 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:49:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:49:15 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-01-29 22:49:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:49:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:49:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:49:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:49:15 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:49:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:49:15 INFO imstat:::: Statistics --- 2026-01-29 22:49:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:49:15 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:49:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:49:15 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:49:15 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-01-29 22:49:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-01-29 22:49:15 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-01-29 22:49:15 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-01-29 22:49:15 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-01-29 22:49:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:49:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:49:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:49:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:49:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:49:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:49:15 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 2026-01-29 22:49:15 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:49:15.027504 End time: 2026-01-29 22:49:15.063978 2026-01-29 22:49:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:49:15 INFO imstat::::casa ########################################## 2026-01-29 22:49:15 INFO phaseshift::::casa ########################################## 2026-01-29 22:49:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:49:15 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 0.110875644rad' ) 2026-01-29 22:49:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:49:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:49:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:49:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:49:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:49:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:49:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:49:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:49:15 INFO MSTransformManager::open Select data 2026-01-29 22:49:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:49:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:49:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 0.110875644rad' successfully parsed 2026-01-29 22:49:18 INFO phaseshift::::casa Shift phase center 2026-01-29 22:49:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:49:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:49:15.091990 End time: 2026-01-29 22:49:19.698809 2026-01-29 22:49:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:49:20 INFO phaseshift::::casa ########################################## 2026-01-29 22:49:20 INFO tclean::::casa ########################################## 2026-01-29 22:49:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:49:20 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:49:20 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:49:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:49:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:49:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:49:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:49:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:49:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:49:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:49:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:49:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:49:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:49:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:49:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:49:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.030403 2026-01-29 22:49:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:49:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:49:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:49:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:49:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:49:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:49:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:49:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:49:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:49:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:49:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:49:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:49:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:49:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:49:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:49:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:49:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:49:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:49:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:49:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:49:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:49:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:49:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:49:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:49:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:49:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:49:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:49:28 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:49:28 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:49:28 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:49:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:49:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:49:30 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:49:19.753090 End time: 2026-01-29 22:49:29.989601 2026-01-29 22:49:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:49:30 INFO tclean::::casa ########################################## 2026-01-29 22:49:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:49:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:30 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:49:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:49:30 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:49:30 2026****** 2026-01-29 22:49:30 INFO ImageFitter::fit+ 2026-01-29 22:49:30 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:49:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:49:30 INFO ImageFitter::fit+ --- region: 2026-01-29 22:49:30 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:49:30 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:49:30 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:49:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:49:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:49:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:49:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:30 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:49:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:49:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:49:30 INFO imstat::::casa ########################################## 2026-01-29 22:49:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:49:30 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:49:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:49:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:49:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:49:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:49:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:30 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) 2026-01-29 22:49:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:49:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:49:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:49:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:49:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:49:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:49:30 INFO imstat:::: Values --- 2026-01-29 22:49:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:49:30 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:49:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:49:30 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-01-29 22:49:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:49:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:49:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:49:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-01-29 22:49:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:49:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:49:30 INFO imstat:::: Statistics --- 2026-01-29 22:49:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:49:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:49:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:49:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:49:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-01-29 22:49:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-01-29 22:49:30 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-01-29 22:49:30 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-01-29 22:49:30 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-01-29 22:49:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:49:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:49:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:49:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:49:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:49:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:49:30 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 2026-01-29 22:49:30 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:49:30.069218 End time: 2026-01-29 22:49:30.097104 2026-01-29 22:49:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:49:30 INFO imstat::::casa ########################################## 2026-01-29 22:49:30 INFO phaseshift::::casa ########################################## 2026-01-29 22:49:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:49:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg +006d21m09.7433' ) 2026-01-29 22:49:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:49:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:49:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:49:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:49:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:49:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:49:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:49:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:49:30 INFO MSTransformManager::open Select data 2026-01-29 22:49:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:49:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:49:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg +006d21m09.7433' successfully parsed 2026-01-29 22:49:33 INFO phaseshift::::casa Shift phase center 2026-01-29 22:49:33 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:49:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:49:30.114630 End time: 2026-01-29 22:49:33.252195 2026-01-29 22:49:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:49:33 INFO phaseshift::::casa ########################################## 2026-01-29 22:49:33 INFO tclean::::casa ########################################## 2026-01-29 22:49:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:49:33 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:49:33 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:49:33 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:49:33 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:49:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:49:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:49:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:49:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:49:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:49:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:49:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:49:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:49:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:49:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:49:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02695 2026-01-29 22:49:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:49:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:49:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:49:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:49:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:49:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:49:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:49:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:49:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:49:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:49:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:49:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:49:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:49:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:49:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:49:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:49:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:49:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:49:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:49:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:49:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:49:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:49:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:49:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:49:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:49:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:49:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:49:40 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:49:40 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:49:40 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:49:41 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:49:41 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:49:42 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:49:33.313737 End time: 2026-01-29 22:49:41.651114 2026-01-29 22:49:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:49:42 INFO tclean::::casa ########################################## 2026-01-29 22:49:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:49:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:42 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:49:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:49:42 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:49:42 2026****** 2026-01-29 22:49:42 INFO ImageFitter::fit+ 2026-01-29 22:49:42 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:49:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:49:42 INFO ImageFitter::fit+ --- region: 2026-01-29 22:49:42 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:49:42 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:49:42 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:49:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:49:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:49:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:49:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:42 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:49:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116867 Jy 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126483 Jy 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:49:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:49:42 INFO imstat::::casa ########################################## 2026-01-29 22:49:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:49:42 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:49:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:49:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:49:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:49:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:49:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:42 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:49:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:49:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:49:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:49:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:49:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:49:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:49:42 INFO imstat:::: Values --- 2026-01-29 22:49:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:49:42 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:49:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:49:42 INFO imstat:::: -- minimum value [min]: -7.77768e-05 Jy/beam 2026-01-29 22:49:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:49:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:49:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:49:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:49:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:49:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:49:42 INFO imstat:::: Statistics --- 2026-01-29 22:49:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:49:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:49:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:49:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:49:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-01-29 22:49:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73609e-05 Jy/beam 2026-01-29 22:49:42 INFO imstat:::: -- IQR [quartile]: 3.56013e-05 Jy/beam 2026-01-29 22:49:42 INFO imstat:::: -- First quartile [q1]: -3.4507e-05 Jy/beam 2026-01-29 22:49:42 INFO imstat:::: -- Third quartile [q3]: 1.09435e-06 Jy/beam 2026-01-29 22:49:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:49:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:49:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:49:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:49:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:49:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:49:42 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 2026-01-29 22:49:42 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:49:41.720193 End time: 2026-01-29 22:49:41.748281 2026-01-29 22:49:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:49:42 INFO imstat::::casa ########################################## 2026-01-29 22:49:42 INFO phaseshift::::casa ########################################## 2026-01-29 22:49:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:49:42 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 00:25:24.6496' ) 2026-01-29 22:49:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:49:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:49:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:49:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:49:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:49:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:49:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:49:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:49:42 INFO MSTransformManager::open Select data 2026-01-29 22:49:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:49:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-01-29 22:49:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 00:25:24.6496' successfully parsed 2026-01-29 22:49:44 INFO phaseshift::::casa Shift phase center 2026-01-29 22:49:44 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:49:44 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:49:41.760244 End time: 2026-01-29 22:49:44.475670 2026-01-29 22:49:44 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:49:44 INFO phaseshift::::casa ########################################## 2026-01-29 22:49:45 INFO tclean::::casa ########################################## 2026-01-29 22:49:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:49:45 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 ) 2026-01-29 22:49:45 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:49:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:49:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:49:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:49:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:49:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:49:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:49:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:49:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:49:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:49:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:49:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:49:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:49:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028656 2026-01-29 22:49:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:49:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:49:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:49:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:49:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:49:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:49:47 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:49:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:49:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:49:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:49:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:49:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:49:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:49:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:49:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:49:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:49:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:49:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:49:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:49:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:49:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:49:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:49:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:49:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:49:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:49:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:49:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:49:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:49:53 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:49:53 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:49:53 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:49:54 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:49:54 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:49:55 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:49:44.530103 End time: 2026-01-29 22:49:55.049397 2026-01-29 22:49:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:49:55 INFO tclean::::casa ########################################## 2026-01-29 22:49:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:49:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:55 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) 2026-01-29 22:49:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:49:55 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:49:55 2026****** 2026-01-29 22:49:55 INFO ImageFitter::fit+ 2026-01-29 22:49:55 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:49:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:49:55 INFO ImageFitter::fit+ --- region: 2026-01-29 22:49:55 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:49:55 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:49:55 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:49:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:49:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:49:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:49:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:55 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) 2026-01-29 22:49:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116903 Jy 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126517 Jy 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:49:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:49:55 INFO imstat::::casa ########################################## 2026-01-29 22:49:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:49:55 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 ) 2026-01-29 22:49:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:49:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:49:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:49:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:49:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:49:55 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) 2026-01-29 22:49:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:49:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:49:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:49:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:49:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-01-29 22:49:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-01-29 22:49:55 INFO imstat:::: Values --- 2026-01-29 22:49:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:49:55 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:49:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:49:55 INFO imstat:::: -- minimum value [min]: -7.78731e-05 Jy/beam 2026-01-29 22:49:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:49:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:49:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:49:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:49:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:49:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:49:55 INFO imstat:::: Statistics --- 2026-01-29 22:49:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:49:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:49:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:49:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:49:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86503e-05 Jy/beam 2026-01-29 22:49:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73798e-05 Jy/beam 2026-01-29 22:49:55 INFO imstat:::: -- IQR [quartile]: 3.56966e-05 Jy/beam 2026-01-29 22:49:55 INFO imstat:::: -- First quartile [q1]: -3.45352e-05 Jy/beam 2026-01-29 22:49:55 INFO imstat:::: -- Third quartile [q3]: 1.16146e-06 Jy/beam 2026-01-29 22:49:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:49:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:49:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:49:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:49:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:49:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:49:55 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787306e-05 4.999996e+00 2026-01-29 22:49:55 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:49:55.126989 End time: 2026-01-29 22:49:55.155007 2026-01-29 22:49:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:49:55 INFO imstat::::casa ########################################## 2026-01-29 22:49:55 INFO phaseshift::::casa ########################################## 2026-01-29 22:49:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:49:55 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 6.352706472deg' ) 2026-01-29 22:49:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:49:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:49:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:49:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:49:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:49:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:49:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:49:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:49:55 INFO MSTransformManager::open Select data 2026-01-29 22:49:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:49:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:49:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 6.352706472deg' successfully parsed 2026-01-29 22:49:57 INFO phaseshift::::casa Shift phase center 2026-01-29 22:49:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:49:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:49:55.172310 End time: 2026-01-29 22:49:57.996530 2026-01-29 22:49:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:49:58 INFO phaseshift::::casa ########################################## 2026-01-29 22:49:58 INFO tclean::::casa ########################################## 2026-01-29 22:49:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:49:58 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 ) 2026-01-29 22:49:58 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:49:58 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:49:58 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:49:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:49:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:49:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:49:58 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:49:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:49:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:49:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:49:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:49:58 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:49:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:50:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02704 2026-01-29 22:50:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:50:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:50:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:50:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:50:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:50:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:50:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:50:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:50:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:50:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:50:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:50:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:50:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:50:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:50:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:50:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:50:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:50:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:50:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:50:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:50:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:50:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:50:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:50:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:50:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:50:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:50:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:50:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:50:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:50:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:50:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:50:08 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:50:09 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:49:58.046932 End time: 2026-01-29 22:50:08.910247 2026-01-29 22:50:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:50:09 INFO tclean::::casa ########################################## 2026-01-29 22:50:09 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:50:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:50:09 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) 2026-01-29 22:50:09 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:50:09 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:50:09 2026****** 2026-01-29 22:50:09 INFO ImageFitter::fit+ 2026-01-29 22:50:09 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:50:09 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:50:09 INFO ImageFitter::fit+ --- region: 2026-01-29 22:50:09 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:50:09 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:50:09 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:50:09 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:50:09 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:50:09 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:50:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:50:09 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) 2026-01-29 22:50:09 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011687 Jy 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:50:09 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:50:09 INFO imstat::::casa ########################################## 2026-01-29 22:50:09 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:50:09 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 ) 2026-01-29 22:50:09 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:50:09 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:50:09 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:50:09 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:50:09 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:50:09 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:50:09 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:50:09 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:50:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:50:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:50:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:50:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:50:09 INFO imstat:::: Values --- 2026-01-29 22:50:09 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:50:09 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:50:09 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:50:09 INFO imstat:::: -- minimum value [min]: -7.77771e-05 Jy/beam 2026-01-29 22:50:09 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:50:09 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:50:09 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:50:09 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:50:09 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:50:09 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:50:09 INFO imstat:::: Statistics --- 2026-01-29 22:50:09 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:50:09 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:50:09 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:50:09 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:50:09 INFO imstat:::: -- Median of the pixel values [median]: -1.86715e-05 Jy/beam 2026-01-29 22:50:09 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73619e-05 Jy/beam 2026-01-29 22:50:09 INFO imstat:::: -- IQR [quartile]: 3.56021e-05 Jy/beam 2026-01-29 22:50:09 INFO imstat:::: -- First quartile [q1]: -3.45061e-05 Jy/beam 2026-01-29 22:50:09 INFO imstat:::: -- Third quartile [q3]: 1.09605e-06 Jy/beam 2026-01-29 22:50:09 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:50:09 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:50:09 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:50:09 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:50:09 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:50:09 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:50:09 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 2026-01-29 22:50:09 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:50:08.981810 End time: 2026-01-29 22:50:09.008442 2026-01-29 22:50:09 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:50:09 INFO imstat::::casa ########################################## 2026-01-29 22:50:09 INFO phaseshift::::casa ########################################## 2026-01-29 22:50:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:50:09 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 0.110875644rad' ) 2026-01-29 22:50:09 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:50:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:50:09 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:50:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:50:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:50:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:50:09 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:50:09 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:50:09 INFO MSTransformManager::open Select data 2026-01-29 22:50:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:50:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:50:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 0.110875644rad' successfully parsed 2026-01-29 22:50:12 INFO phaseshift::::casa Shift phase center 2026-01-29 22:50:13 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:50:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:50:09.025265 End time: 2026-01-29 22:50:12.722190 2026-01-29 22:50:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:50:13 INFO phaseshift::::casa ########################################## 2026-01-29 22:50:13 INFO tclean::::casa ########################################## 2026-01-29 22:50:13 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:50:13 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:50:13 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:50:13 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:50:13 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:50:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:50:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:50:13 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:50:13 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:50:13 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:50:13 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:50:13 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:50:13 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:50:13 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:50:14 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:50:14 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027304 2026-01-29 22:50:14 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:50:14 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:50:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:50:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:50:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:50:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:50:16 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:50:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:50:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:50:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:50:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:50:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:50:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:50:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:50:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:50:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:50:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:50:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:50:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:50:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:50:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:50:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:50:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:50:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:50:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:50:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:50:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:50:21 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:50:21 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:50:21 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:50:22 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:50:22 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:50:23 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:50:12.782537 End time: 2026-01-29 22:50:23.412309 2026-01-29 22:50:23 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:50:23 INFO tclean::::casa ########################################## 2026-01-29 22:50:23 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:50:23 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:50:23 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:50:23 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:50:23 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:50:23 2026****** 2026-01-29 22:50:23 INFO ImageFitter::fit+ 2026-01-29 22:50:23 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:50:23 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:50:23 INFO ImageFitter::fit+ --- region: 2026-01-29 22:50:23 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:50:23 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:50:23 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:50:23 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:50:23 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:50:23 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:50:23 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:50:23 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:50:23 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126482 Jy 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:50:23 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:50:23 INFO imstat::::casa ########################################## 2026-01-29 22:50:23 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:50:23 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:50:24 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:50:24 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:50:24 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:50:24 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:50:24 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:50:24 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) 2026-01-29 22:50:24 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:50:24 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:50:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:50:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:50:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:50:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:50:24 INFO imstat:::: Values --- 2026-01-29 22:50:24 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:50:24 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:50:24 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:50:24 INFO imstat:::: -- minimum value [min]: -7.77855e-05 Jy/beam 2026-01-29 22:50:24 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:50:24 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:50:24 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:50:24 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-01-29 22:50:24 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:50:24 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:50:24 INFO imstat:::: Statistics --- 2026-01-29 22:50:24 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:50:24 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:50:24 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:50:24 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:50:24 INFO imstat:::: -- Median of the pixel values [median]: -1.86732e-05 Jy/beam 2026-01-29 22:50:24 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73562e-05 Jy/beam 2026-01-29 22:50:24 INFO imstat:::: -- IQR [quartile]: 3.56008e-05 Jy/beam 2026-01-29 22:50:24 INFO imstat:::: -- First quartile [q1]: -3.45107e-05 Jy/beam 2026-01-29 22:50:24 INFO imstat:::: -- Third quartile [q3]: 1.09015e-06 Jy/beam 2026-01-29 22:50:24 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:50:24 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:50:24 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:50:24 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:50:24 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:50:24 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:50:24 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 2026-01-29 22:50:24 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:50:23.493452 End time: 2026-01-29 22:50:23.522159 2026-01-29 22:50:24 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:50:24 INFO imstat::::casa ########################################## 2026-01-29 22:50:24 INFO phaseshift::::casa ########################################## 2026-01-29 22:50:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:50:24 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad +006d21m09.7433' ) 2026-01-29 22:50:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:50:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:50:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:50:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:50:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:50:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:50:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:50:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:50:24 INFO MSTransformManager::open Select data 2026-01-29 22:50:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:50:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:50:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad +006d21m09.7433' successfully parsed 2026-01-29 22:50:27 INFO phaseshift::::casa Shift phase center 2026-01-29 22:50:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:50:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:50:23.539634 End time: 2026-01-29 22:50:28.404380 2026-01-29 22:50:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:50:28 INFO phaseshift::::casa ########################################## 2026-01-29 22:50:28 INFO tclean::::casa ########################################## 2026-01-29 22:50:28 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:50:28 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 ) 2026-01-29 22:50:28 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:50:28 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:50:28 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:50:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:50:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:50:29 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:50:29 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:50:29 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:50:29 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:50:29 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:50:29 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:50:29 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:50:30 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:50:30 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022384 2026-01-29 22:50:30 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:50:30 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:50:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:50:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:50:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:50:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:50:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:50:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:50:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:50:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:50:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:50:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:50:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:50:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:50:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:50:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:50:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:50:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:50:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:50:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:50:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:50:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:50:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:50:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:50:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:50:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:50:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:50:37 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:50:37 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:50:37 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:50:38 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:50:38 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:50:39 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:50:28.460585 End time: 2026-01-29 22:50:38.904061 2026-01-29 22:50:39 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:50:39 INFO tclean::::casa ########################################## 2026-01-29 22:50:39 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:50:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:50:39 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) 2026-01-29 22:50:39 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:50:39 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:50:39 2026****** 2026-01-29 22:50:39 INFO ImageFitter::fit+ 2026-01-29 22:50:39 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:50:39 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:50:39 INFO ImageFitter::fit+ --- region: 2026-01-29 22:50:39 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:50:39 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:50:39 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:50:39 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:50:39 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:50:39 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:50:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:50:39 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) 2026-01-29 22:50:39 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:50:39 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:50:39 INFO imstat::::casa ########################################## 2026-01-29 22:50:39 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:50:39 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 ) 2026-01-29 22:50:39 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:50:39 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:50:39 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:50:39 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:50:39 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:50:39 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) 2026-01-29 22:50:39 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:50:39 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:50:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:50:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:50:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:50:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:50:39 INFO imstat:::: Values --- 2026-01-29 22:50:39 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:50:39 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:50:39 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:50:39 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-01-29 22:50:39 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:50:39 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:50:39 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:50:39 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:50:39 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:50:39 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:50:39 INFO imstat:::: Statistics --- 2026-01-29 22:50:39 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:50:39 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:50:39 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:50:39 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:50:39 INFO imstat:::: -- Median of the pixel values [median]: -1.86669e-05 Jy/beam 2026-01-29 22:50:39 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73635e-05 Jy/beam 2026-01-29 22:50:39 INFO imstat:::: -- IQR [quartile]: 3.56081e-05 Jy/beam 2026-01-29 22:50:39 INFO imstat:::: -- First quartile [q1]: -3.45085e-05 Jy/beam 2026-01-29 22:50:39 INFO imstat:::: -- Third quartile [q3]: 1.09959e-06 Jy/beam 2026-01-29 22:50:39 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:50:39 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:50:39 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:50:39 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:50:39 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:50:39 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:50:39 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 2026-01-29 22:50:39 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:50:38.965186 End time: 2026-01-29 22:50:38.989846 2026-01-29 22:50:39 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:50:39 INFO imstat::::casa ########################################## 2026-01-29 22:50:39 INFO phaseshift::::casa ########################################## 2026-01-29 22:50:39 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:50:39 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 00:25:24.6496' ) 2026-01-29 22:50:39 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:50:39 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:50:39 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:50:39 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:50:39 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:50:39 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:50:39 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:50:39 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:50:39 INFO MSTransformManager::open Select data 2026-01-29 22:50:39 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:50:42 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 ".". 2026-01-29 22:50:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 00:25:24.6496' successfully parsed 2026-01-29 22:50:42 INFO phaseshift::::casa Shift phase center 2026-01-29 22:50:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:50:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:50:39.005126 End time: 2026-01-29 22:50:42.441004 2026-01-29 22:50:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:50:42 INFO phaseshift::::casa ########################################## 2026-01-29 22:50:42 INFO tclean::::casa ########################################## 2026-01-29 22:50:42 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:50:42 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 ) 2026-01-29 22:50:42 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:50:42 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:50:42 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:50:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:50:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:50:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:50:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:50:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:50:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:50:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:50:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:50:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:50:44 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:50:44 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029819 2026-01-29 22:50:44 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:50:44 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:50:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:50:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:50:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:50:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:50:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:50:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:50:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:50:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:50:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:50:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:50:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:50:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:50:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:50:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:50:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:50:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:50:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:50:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:50:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:50:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:50:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:50:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:50:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:50:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:50:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:50:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:50:50 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:50:50 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:50:50 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:50:51 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:50:51 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:50:52 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:50:42.482541 End time: 2026-01-29 22:50:51.859784 2026-01-29 22:50:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:50:52 INFO tclean::::casa ########################################## 2026-01-29 22:50:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:50:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:50:52 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) 2026-01-29 22:50:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:50:52 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:50:52 2026****** 2026-01-29 22:50:52 INFO ImageFitter::fit+ 2026-01-29 22:50:52 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:50:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:50:52 INFO ImageFitter::fit+ --- region: 2026-01-29 22:50:52 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:50:52 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:50:52 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:50:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:50:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:50:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:50:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:50:52 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) 2026-01-29 22:50:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116905 Jy 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000041 +/- 0.000777 arcsec 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- ra: 127.999941 +/- 0.000127 pixels 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- dec: 127.999954 +/- 0.000097 pixels 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:50:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:50:52 INFO imstat::::casa ########################################## 2026-01-29 22:50:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:50:52 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 ) 2026-01-29 22:50:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:50:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:50:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:50:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:50:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:50:52 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) 2026-01-29 22:50:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:50:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:50:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:50:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:50:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-01-29 22:50:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-01-29 22:50:52 INFO imstat:::: Values --- 2026-01-29 22:50:52 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:50:52 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:50:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:50:52 INFO imstat:::: -- minimum value [min]: -7.78774e-05 Jy/beam 2026-01-29 22:50:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:50:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:50:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:50:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:50:52 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:50:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:50:52 INFO imstat:::: Statistics --- 2026-01-29 22:50:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:50:52 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:50:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:50:52 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:50:52 INFO imstat:::: -- Median of the pixel values [median]: -1.86532e-05 Jy/beam 2026-01-29 22:50:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73779e-05 Jy/beam 2026-01-29 22:50:52 INFO imstat:::: -- IQR [quartile]: 3.5701e-05 Jy/beam 2026-01-29 22:50:52 INFO imstat:::: -- First quartile [q1]: -3.45356e-05 Jy/beam 2026-01-29 22:50:52 INFO imstat:::: -- Third quartile [q3]: 1.16544e-06 Jy/beam 2026-01-29 22:50:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:50:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:50:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:50:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:50:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:50:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:50:52 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 2026-01-29 22:50:52 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:50:51.948599 End time: 2026-01-29 22:50:51.978047 2026-01-29 22:50:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:50:52 INFO imstat::::casa ########################################## 2026-01-29 22:50:52 INFO phaseshift::::casa ########################################## 2026-01-29 22:50:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:50:52 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 6.352706472deg' ) 2026-01-29 22:50:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:50:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:50:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:50:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:50:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:50:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:50:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:50:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:50:52 INFO MSTransformManager::open Select data 2026-01-29 22:50:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:50:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:50:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 6.352706472deg' successfully parsed 2026-01-29 22:50:55 INFO phaseshift::::casa Shift phase center 2026-01-29 22:50:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:50:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:50:51.996562 End time: 2026-01-29 22:50:56.210695 2026-01-29 22:50:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:50:56 INFO phaseshift::::casa ########################################## 2026-01-29 22:50:56 INFO tclean::::casa ########################################## 2026-01-29 22:50:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:50:56 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:50:56 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:50:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:50:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:50:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:50:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:50:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:50:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:50:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:50:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:50:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:50:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:50:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:50:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:50:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029508 2026-01-29 22:50:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:50:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:50:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:50:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:51:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:51:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:51:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:51:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:51:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:51:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:51:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:51:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:51:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:51:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:51:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:51:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:51:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:51:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:51:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:51:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:51:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:51:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:51:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:51:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:51:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:51:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:51:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:51:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:51:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:51:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:51:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:51:08 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:51:10 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:50:56.270793 End time: 2026-01-29 22:51:10.132385 2026-01-29 22:51:10 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:51:10 INFO tclean::::casa ########################################## 2026-01-29 22:51:10 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:51:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:51:10 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) 2026-01-29 22:51:10 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:51:10 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:51:10 2026****** 2026-01-29 22:51:10 INFO ImageFitter::fit+ 2026-01-29 22:51:10 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:51:10 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:51:10 INFO ImageFitter::fit+ --- region: 2026-01-29 22:51:10 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:51:10 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:51:10 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:51:10 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:51:10 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:51:10 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:51:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:51:10 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) 2026-01-29 22:51:10 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:51:10 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:51:10 INFO imstat::::casa ########################################## 2026-01-29 22:51:10 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:51:10 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 ) 2026-01-29 22:51:10 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:51:10 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:51:10 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:51:10 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:51:10 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:51:10 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) 2026-01-29 22:51:10 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:51:10 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:51:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:51:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:51:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:51:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:51:10 INFO imstat:::: Values --- 2026-01-29 22:51:10 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:51:10 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:51:10 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:51:10 INFO imstat:::: -- minimum value [min]: -7.77798e-05 Jy/beam 2026-01-29 22:51:10 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:51:10 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:51:10 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:51:10 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:51:10 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:51:10 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:51:10 INFO imstat:::: Statistics --- 2026-01-29 22:51:10 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:51:10 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:51:10 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:51:10 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:51:10 INFO imstat:::: -- Median of the pixel values [median]: -1.86675e-05 Jy/beam 2026-01-29 22:51:10 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73645e-05 Jy/beam 2026-01-29 22:51:10 INFO imstat:::: -- IQR [quartile]: 3.56077e-05 Jy/beam 2026-01-29 22:51:10 INFO imstat:::: -- First quartile [q1]: -3.45073e-05 Jy/beam 2026-01-29 22:51:10 INFO imstat:::: -- Third quartile [q3]: 1.1004e-06 Jy/beam 2026-01-29 22:51:10 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:51:10 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:51:10 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:51:10 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:51:10 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:51:10 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:51:10 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 2026-01-29 22:51:10 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:51:10.207813 End time: 2026-01-29 22:51:10.249297 2026-01-29 22:51:10 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:51:10 INFO imstat::::casa ########################################## 2026-01-29 22:51:10 INFO phaseshift::::casa ########################################## 2026-01-29 22:51:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:51:10 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 1.310562834rad 0.110875644rad' ) 2026-01-29 22:51:10 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:51:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:51:10 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:51:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:51:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:51:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:51:10 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:51:10 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:51:10 INFO MSTransformManager::open Select data 2026-01-29 22:51:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:51:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:51:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 0.110875644rad' successfully parsed 2026-01-29 22:51:14 INFO phaseshift::::casa Shift phase center 2026-01-29 22:51:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:51:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:51:10.272153 End time: 2026-01-29 22:51:14.489909 2026-01-29 22:51:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:51:14 INFO phaseshift::::casa ########################################## 2026-01-29 22:51:15 INFO tclean::::casa ########################################## 2026-01-29 22:51:15 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:51:15 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 ) 2026-01-29 22:51:15 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:51:15 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:51:15 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:51:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:51:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:51:15 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:51:15 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:51:15 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:51:15 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:51:15 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:51:15 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:51:15 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:51:16 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:51:16 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028637 2026-01-29 22:51:16 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:51:16 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:51:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:51:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:51:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:51:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:51:17 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:51:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:51:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:51:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:51:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:51:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:51:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:51:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:51:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:51:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:51:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:51:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:51:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:51:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:51:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:51:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:51:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:51:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:51:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:51:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:51:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:51:24 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:51:24 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:51:24 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:51:25 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:51:25 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:51:26 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:51:14.549177 End time: 2026-01-29 22:51:26.451665 2026-01-29 22:51:26 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:51:26 INFO tclean::::casa ########################################## 2026-01-29 22:51:26 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:51:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:51:26 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:51:26 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:51:26 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:51:26 2026****** 2026-01-29 22:51:26 INFO ImageFitter::fit+ 2026-01-29 22:51:26 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:51:26 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:51:26 INFO ImageFitter::fit+ --- region: 2026-01-29 22:51:26 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:51:26 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:51:26 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:51:26 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:51:26 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:51:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:51:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:51:27 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:51:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000002 +/- 0.000777 arcsec 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- ra: 128.000014 +/- 0.000127 pixels 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- dec: 127.999998 +/- 0.000097 pixels 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:51:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:51:27 INFO imstat::::casa ########################################## 2026-01-29 22:51:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:51:27 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:51:27 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:51:27 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:51:27 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:51:27 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:51:27 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:51:27 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:51:27 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:51:27 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:51:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:51:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:51:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:51:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:51:27 INFO imstat:::: Values --- 2026-01-29 22:51:27 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:51:27 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:51:27 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:51:27 INFO imstat:::: -- minimum value [min]: -7.77816e-05 Jy/beam 2026-01-29 22:51:27 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:51:27 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:51:27 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:51:27 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-01-29 22:51:27 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:51:27 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:51:27 INFO imstat:::: Statistics --- 2026-01-29 22:51:27 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:51:27 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:51:27 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:51:27 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:51:27 INFO imstat:::: -- Median of the pixel values [median]: -1.8676e-05 Jy/beam 2026-01-29 22:51:27 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73584e-05 Jy/beam 2026-01-29 22:51:27 INFO imstat:::: -- IQR [quartile]: 3.56038e-05 Jy/beam 2026-01-29 22:51:27 INFO imstat:::: -- First quartile [q1]: -3.45104e-05 Jy/beam 2026-01-29 22:51:27 INFO imstat:::: -- Third quartile [q3]: 1.09331e-06 Jy/beam 2026-01-29 22:51:27 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:51:27 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:51:27 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:51:27 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:51:27 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:51:27 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:51:27 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 2026-01-29 22:51:27 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:51:26.529937 End time: 2026-01-29 22:51:26.557966 2026-01-29 22:51:27 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:51:27 INFO imstat::::casa ########################################## 2026-01-29 22:51:27 INFO phaseshift::::casa ########################################## 2026-01-29 22:51:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:51:27 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39d58m05.8512' ) 2026-01-29 22:51:27 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:51:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:51:27 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:51:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:51:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:51:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:51:27 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:51:27 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:51:27 INFO MSTransformManager::open Select data 2026-01-29 22:51:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:51:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:51:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39d58m05.8512' successfully parsed 2026-01-29 22:51:29 INFO phaseshift::::casa Shift phase center 2026-01-29 22:51:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:51:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:51:26.575942 End time: 2026-01-29 22:51:30.175534 2026-01-29 22:51:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:51:30 INFO phaseshift::::casa ########################################## 2026-01-29 22:51:30 INFO tclean::::casa ########################################## 2026-01-29 22:51:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:51:30 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:51:30 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:51:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:51:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:51:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:51:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:51:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:51:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:51:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:51:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:51:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:51:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:51:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:51:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:51:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027841 2026-01-29 22:51:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:51:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:51:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:51:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:51:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:51:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:51:34 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:51:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:51:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:51:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:51:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:51:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:51:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:51:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:51:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:51:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:51:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:51:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:51:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:51:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:51:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:51:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:51:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:51:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:51:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:51:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:51:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:51:40 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:51:40 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:51:40 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:51:41 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:51:41 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:51:43 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:51:30.221574 End time: 2026-01-29 22:51:42.699965 2026-01-29 22:51:43 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:51:43 INFO tclean::::casa ########################################## 2026-01-29 22:51:43 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:51:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:51:43 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:51:43 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:51:43 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:51:43 2026****** 2026-01-29 22:51:43 INFO ImageFitter::fit+ 2026-01-29 22:51:43 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:51:43 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:51:43 INFO ImageFitter::fit+ --- region: 2026-01-29 22:51:43 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:51:43 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:51:43 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:51:43 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:51:43 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:51:43 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:51:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:51:43 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:51:43 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:51:43 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:51:43 INFO imstat::::casa ########################################## 2026-01-29 22:51:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:51:43 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:51:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:51:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:51:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:51:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:51:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:51:43 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:51:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:51:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:51:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:51:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:51:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:51:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:51:43 INFO imstat:::: Values --- 2026-01-29 22:51:43 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:51:43 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:51:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:51:43 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-01-29 22:51:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:51:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:51:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:51:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:51:43 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:51:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:51:43 INFO imstat:::: Statistics --- 2026-01-29 22:51:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:51:43 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:51:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:51:43 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:51:43 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-01-29 22:51:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-01-29 22:51:43 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-01-29 22:51:43 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-01-29 22:51:43 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-01-29 22:51:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:51:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:51:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:51:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:51:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:51:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:51:43 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 2026-01-29 22:51:43 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:51:42.773068 End time: 2026-01-29 22:51:42.799963 2026-01-29 22:51:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:51:43 INFO imstat::::casa ########################################## 2026-01-29 22:51:43 INFO phaseshift::::casa ########################################## 2026-01-29 22:51:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:51:43 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 02:39:52.3901' ) 2026-01-29 22:51:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:51:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:51:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:51:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:51:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:51:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:51:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:51:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:51:43 INFO MSTransformManager::open Select data 2026-01-29 22:51:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:51:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-01-29 22:51:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 02:39:52.3901' successfully parsed 2026-01-29 22:51:45 INFO phaseshift::::casa Shift phase center 2026-01-29 22:51:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:51:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:51:42.816809 End time: 2026-01-29 22:51:46.157287 2026-01-29 22:51:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:51:46 INFO phaseshift::::casa ########################################## 2026-01-29 22:51:46 INFO tclean::::casa ########################################## 2026-01-29 22:51:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:51:46 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:51:46 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:51:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:51:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:51:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:51:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:51:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:51:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:51:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:51:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:51:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:51:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:51:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:51:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:51:48 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021968 2026-01-29 22:51:48 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:51:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:51:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:51:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:51:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:51:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:51:50 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:51:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:51:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:51:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:51:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:51:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:51:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:51:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:51:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:51:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:51:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:51:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:51:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:51:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:51:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:51:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:51:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:51:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:51:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:51:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:51:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:51:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:51:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:51:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:51:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:51:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:51:56 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:51:57 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:51:46.208614 End time: 2026-01-29 22:51:57.204692 2026-01-29 22:51:57 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:51:57 INFO tclean::::casa ########################################## 2026-01-29 22:51:57 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:51:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:51:57 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) 2026-01-29 22:51:57 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:51:57 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:51:57 2026****** 2026-01-29 22:51:57 INFO ImageFitter::fit+ 2026-01-29 22:51:57 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:51:57 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:51:57 INFO ImageFitter::fit+ --- region: 2026-01-29 22:51:57 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:51:57 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:51:57 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:51:57 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:51:57 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:51:57 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:51:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:51:57 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) 2026-01-29 22:51:57 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:51:57 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:51:57 INFO imstat::::casa ########################################## 2026-01-29 22:51:57 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:51:57 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 ) 2026-01-29 22:51:57 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:51:57 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:51:57 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:51:57 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:51:57 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:51:57 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) 2026-01-29 22:51:57 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:51:57 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:51:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:51:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:51:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-01-29 22:51:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-01-29 22:51:57 INFO imstat:::: Values --- 2026-01-29 22:51:57 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:51:57 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:51:57 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:51:57 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-01-29 22:51:57 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:51:57 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:51:57 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:51:57 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:51:57 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:51:57 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:51:57 INFO imstat:::: Statistics --- 2026-01-29 22:51:57 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:51:57 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:51:57 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:51:57 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:51:57 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-01-29 22:51:57 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-01-29 22:51:57 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-01-29 22:51:57 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-01-29 22:51:57 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-01-29 22:51:57 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:51:57 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:51:57 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:51:57 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:51:57 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:51:57 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:51:57 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 2026-01-29 22:51:57 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:51:57.248331 End time: 2026-01-29 22:51:57.266890 2026-01-29 22:51:57 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:51:57 INFO imstat::::casa ########################################## 2026-01-29 22:51:57 INFO phaseshift::::casa ########################################## 2026-01-29 22:51:57 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:51:57 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39.968292000deg' ) 2026-01-29 22:51:57 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:51:57 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:51:57 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:51:57 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:51:57 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:51:57 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:51:57 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:51:57 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:51:57 INFO MSTransformManager::open Select data 2026-01-29 22:51:57 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:52:01 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:52:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39.968292000deg' successfully parsed 2026-01-29 22:52:01 INFO phaseshift::::casa Shift phase center 2026-01-29 22:52:01 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:52:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:51:57.279410 End time: 2026-01-29 22:52:01.171396 2026-01-29 22:52:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:52:01 INFO phaseshift::::casa ########################################## 2026-01-29 22:52:01 INFO tclean::::casa ########################################## 2026-01-29 22:52:01 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:52:01 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:52:01 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:52:01 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:52:01 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:52:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:52:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:52:01 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:52:01 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:52:01 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:52:01 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:52:01 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:52:01 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:52:01 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:52:03 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:52:03 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021977 2026-01-29 22:52:03 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:52:03 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:52:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:52:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:52:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:52:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:52:05 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:52:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:52:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:52:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:52:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:52:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:52:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:52:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:52:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:52:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:52:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:52:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:52:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:52:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:52:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:52:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:52:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:52:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:52:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:52:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:52:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:52:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:52:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:52:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:52:15 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:52:15 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:52:17 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:52:01.227554 End time: 2026-01-29 22:52:16.562144 2026-01-29 22:52:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:52:17 INFO tclean::::casa ########################################## 2026-01-29 22:52:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:52:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:52:17 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) 2026-01-29 22:52:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:52:17 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:52:17 2026****** 2026-01-29 22:52:17 INFO ImageFitter::fit+ 2026-01-29 22:52:17 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:52:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:52:17 INFO ImageFitter::fit+ --- region: 2026-01-29 22:52:17 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:52:17 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:52:17 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:52:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:52:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:52:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:52:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:52:17 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) 2026-01-29 22:52:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:52:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:52:17 INFO imstat::::casa ########################################## 2026-01-29 22:52:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:52:17 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 ) 2026-01-29 22:52:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:52:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:52:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:52:17 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:52:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:52:17 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) 2026-01-29 22:52:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:52:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:52:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:52:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:52:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:52:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:52:17 INFO imstat:::: Values --- 2026-01-29 22:52:17 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:52:17 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:52:17 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:52:17 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-01-29 22:52:17 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:52:17 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:52:17 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:52:17 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:52:17 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:52:17 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:52:17 INFO imstat:::: Statistics --- 2026-01-29 22:52:17 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:52:17 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:52:17 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:52:17 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:52:17 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-01-29 22:52:17 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-01-29 22:52:17 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-01-29 22:52:17 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-01-29 22:52:17 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-01-29 22:52:17 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:52:17 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:52:17 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:52:17 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:52:17 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:52:17 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:52:17 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 2026-01-29 22:52:17 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:52:16.640607 End time: 2026-01-29 22:52:16.673999 2026-01-29 22:52:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:52:17 INFO imstat::::casa ########################################## 2026-01-29 22:52:17 INFO phaseshift::::casa ########################################## 2026-01-29 22:52:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:52:17 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 19h52m05.65239 0.697578292rad' ) 2026-01-29 22:52:17 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:52:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:52:17 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:52:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:52:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:52:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:52:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:52:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:52:17 INFO MSTransformManager::open Select data 2026-01-29 22:52:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:52:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:52:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 0.697578292rad' successfully parsed 2026-01-29 22:52:21 INFO phaseshift::::casa Shift phase center 2026-01-29 22:52:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:52:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:52:16.690630 End time: 2026-01-29 22:52:21.589763 2026-01-29 22:52:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:52:22 INFO phaseshift::::casa ########################################## 2026-01-29 22:52:22 INFO tclean::::casa ########################################## 2026-01-29 22:52:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:52:22 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 ) 2026-01-29 22:52:22 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:52:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:52:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:52:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:52:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:52:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:52:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:52:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:52:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:52:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:52:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:52:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:52:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:52:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027879 2026-01-29 22:52:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:52:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:52:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:52:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:52:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:52:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:52:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:52:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:52:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:52:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:52:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:52:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:52:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:52:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:52:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:52:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:52:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:52:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:52:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:52:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:52:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:52:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:52:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:52:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:52:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:52:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:52:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:52:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:52:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:52:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:52:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:52:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:52:31 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:52:21.645321 End time: 2026-01-29 22:52:30.636365 2026-01-29 22:52:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:52:31 INFO tclean::::casa ########################################## 2026-01-29 22:52:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:52:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:52:31 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) 2026-01-29 22:52:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:52:31 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:52:31 2026****** 2026-01-29 22:52:31 INFO ImageFitter::fit+ 2026-01-29 22:52:31 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:52:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:52:31 INFO ImageFitter::fit+ --- region: 2026-01-29 22:52:31 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:52:31 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:52:31 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:52:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:52:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:52:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:52:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:52:31 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) 2026-01-29 22:52:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:52:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:52:31 INFO imstat::::casa ########################################## 2026-01-29 22:52:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:52:31 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 ) 2026-01-29 22:52:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:52:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:52:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:52:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:52:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:52:31 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) 2026-01-29 22:52:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:52:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:52:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:52:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:52:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:52:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:52:31 INFO imstat:::: Values --- 2026-01-29 22:52:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:52:31 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:52:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:52:31 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-01-29 22:52:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:52:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:52:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:52:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:52:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:52:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:52:31 INFO imstat:::: Statistics --- 2026-01-29 22:52:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:52:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:52:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:52:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:52:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-01-29 22:52:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-01-29 22:52:31 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-01-29 22:52:31 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-01-29 22:52:31 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-01-29 22:52:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:52:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:52:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:52:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:52:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:52:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:52:31 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778897e-05 4.999996e+00 2026-01-29 22:52:31 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:52:30.727295 End time: 2026-01-29 22:52:30.758372 2026-01-29 22:52:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:52:31 INFO imstat::::casa ########################################## 2026-01-29 22:52:31 INFO phaseshift::::casa ########################################## 2026-01-29 22:52:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:52:31 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39d58m05.8512' ) 2026-01-29 22:52:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:52:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:52:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:52:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:52:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:52:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:52:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:52:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:52:31 INFO MSTransformManager::open Select data 2026-01-29 22:52:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:52:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:52:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39d58m05.8512' successfully parsed 2026-01-29 22:52:34 INFO phaseshift::::casa Shift phase center 2026-01-29 22:52:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:52:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:52:30.776870 End time: 2026-01-29 22:52:34.413038 2026-01-29 22:52:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:52:34 INFO phaseshift::::casa ########################################## 2026-01-29 22:52:34 INFO tclean::::casa ########################################## 2026-01-29 22:52:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:52:34 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 ) 2026-01-29 22:52:34 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:52:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:52:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:52:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:52:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:52:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:52:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:52:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:52:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:52:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:52:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:52:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:52:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:52:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029803 2026-01-29 22:52:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:52:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:52:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:52:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:52:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:52:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:52:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:52:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:52:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:52:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:52:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:52:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:52:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:52:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:52:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:52:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:52:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:52:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:52:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:52:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:52:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:52:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:52:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:52:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:52:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:52:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:52:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:52:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:52:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:52:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:52:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:52:47 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:52:48 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:52:34.447881 End time: 2026-01-29 22:52:48.418894 2026-01-29 22:52:48 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:52:48 INFO tclean::::casa ########################################## 2026-01-29 22:52:48 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:52:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:52:48 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) 2026-01-29 22:52:48 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:52:48 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:52:48 2026****** 2026-01-29 22:52:48 INFO ImageFitter::fit+ 2026-01-29 22:52:48 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:52:48 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:52:48 INFO ImageFitter::fit+ --- region: 2026-01-29 22:52:48 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:52:48 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:52:48 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:52:48 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:52:48 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:52:48 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:52:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:52:48 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) 2026-01-29 22:52:48 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:52:48 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:52:48 INFO imstat::::casa ########################################## 2026-01-29 22:52:48 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:52:48 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 ) 2026-01-29 22:52:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:52:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:52:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:52:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:52:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:52:49 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:52:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:52:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:52:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:52:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:52:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:52:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:52:49 INFO imstat:::: Values --- 2026-01-29 22:52:49 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:52:49 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:52:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:52:49 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-01-29 22:52:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:52:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:52:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:52:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-01-29 22:52:49 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:52:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:52:49 INFO imstat:::: Statistics --- 2026-01-29 22:52:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:52:49 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:52:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:52:49 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:52:49 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-01-29 22:52:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-01-29 22:52:49 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-01-29 22:52:49 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-01-29 22:52:49 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-01-29 22:52:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:52:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:52:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:52:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:52:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:52:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:52:49 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 2026-01-29 22:52:49 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:52:48.498829 End time: 2026-01-29 22:52:48.527556 2026-01-29 22:52:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:52:49 INFO imstat::::casa ########################################## 2026-01-29 22:52:49 INFO phaseshift::::casa ########################################## 2026-01-29 22:52:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:52:49 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 02:39:52.3901' ) 2026-01-29 22:52:49 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:52:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:52:49 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:52:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:52:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:52:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:52:49 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:52:49 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:52:49 INFO MSTransformManager::open Select data 2026-01-29 22:52:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:52:51 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-01-29 22:52:51 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 02:39:52.3901' successfully parsed 2026-01-29 22:52:51 INFO phaseshift::::casa Shift phase center 2026-01-29 22:52:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:52:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:52:48.545386 End time: 2026-01-29 22:52:51.783309 2026-01-29 22:52:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:52:52 INFO phaseshift::::casa ########################################## 2026-01-29 22:52:52 INFO tclean::::casa ########################################## 2026-01-29 22:52:52 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:52:52 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:52:52 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:52:52 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:52:52 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:52:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:52:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:52:52 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:52:52 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:52:52 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:52:52 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:52:52 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:52:52 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:52:52 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:52:53 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:52:53 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027428 2026-01-29 22:52:53 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:52:53 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:52:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:52:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:52:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:52:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:52:54 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:52:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:52:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:52:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:52:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:52:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:52:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:52:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:52:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:52:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:52:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:52:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:52:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:52:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:52:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:52:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:53:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:53:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:53:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:53:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:53:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:53:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:53:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:53:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:53:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:53:02 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:53:02 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:53:03 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:52:51.832838 End time: 2026-01-29 22:53:03.067965 2026-01-29 22:53:03 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:53:03 INFO tclean::::casa ########################################## 2026-01-29 22:53:03 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:53:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:53:03 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) 2026-01-29 22:53:03 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:53:03 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:53:03 2026****** 2026-01-29 22:53:03 INFO ImageFitter::fit+ 2026-01-29 22:53:03 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:53:03 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:53:03 INFO ImageFitter::fit+ --- region: 2026-01-29 22:53:03 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:53:03 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:53:03 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:53:03 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:53:03 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:53:03 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:53:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:53:03 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) 2026-01-29 22:53:03 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- ra: 128.000008 +/- 0.000127 pixels 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:53:03 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:53:03 INFO imstat::::casa ########################################## 2026-01-29 22:53:03 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:53:03 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 ) 2026-01-29 22:53:03 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:53:03 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:53:03 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:53:03 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:53:03 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:53:03 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-01-29 22:53:03 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:53:03 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:53:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:53:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:53:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-01-29 22:53:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-01-29 22:53:03 INFO imstat:::: Values --- 2026-01-29 22:53:03 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:53:03 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:53:03 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:53:03 INFO imstat:::: -- minimum value [min]: -7.78143e-05 Jy/beam 2026-01-29 22:53:03 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:53:03 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:53:03 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:53:03 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:53:03 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:53:03 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:53:03 INFO imstat:::: Statistics --- 2026-01-29 22:53:03 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:53:03 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:53:03 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:53:03 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:53:03 INFO imstat:::: -- Median of the pixel values [median]: -1.86838e-05 Jy/beam 2026-01-29 22:53:03 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73769e-05 Jy/beam 2026-01-29 22:53:03 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-01-29 22:53:03 INFO imstat:::: -- First quartile [q1]: -3.45216e-05 Jy/beam 2026-01-29 22:53:03 INFO imstat:::: -- Third quartile [q3]: 1.1124e-06 Jy/beam 2026-01-29 22:53:03 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:53:03 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:53:03 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:53:03 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:53:03 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:53:03 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:53:03 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 2026-01-29 22:53:03 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:53:03.145135 End time: 2026-01-29 22:53:03.173363 2026-01-29 22:53:03 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:53:03 INFO imstat::::casa ########################################## 2026-01-29 22:53:03 INFO phaseshift::::casa ########################################## 2026-01-29 22:53:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:53:03 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 19:52:05.6524 39.968292000deg' ) 2026-01-29 22:53:03 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:53:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:53:03 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:53:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:53:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:53:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:53:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:53:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:53:03 INFO MSTransformManager::open Select data 2026-01-29 22:53:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:53:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:53:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39.968292000deg' successfully parsed 2026-01-29 22:53:05 INFO phaseshift::::casa Shift phase center 2026-01-29 22:53:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:53:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:53:03.190701 End time: 2026-01-29 22:53:06.067032 2026-01-29 22:53:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:53:06 INFO phaseshift::::casa ########################################## 2026-01-29 22:53:06 INFO tclean::::casa ########################################## 2026-01-29 22:53:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:53:06 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 ) 2026-01-29 22:53:06 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:53:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:53:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:53:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:53:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:53:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:53:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:53:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:53:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:53:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:53:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:53:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:53:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:53:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029643 2026-01-29 22:53:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:53:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:53:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:53:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:53:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:53:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:53:09 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:53:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:53:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:53:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:53:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:53:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:53:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:53:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:53:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:53:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:53:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:53:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:53:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:53:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:53:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:53:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:53:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:53:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:53:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:53:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:53:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:53:15 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:53:15 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:53:15 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:53:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:53:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:53:17 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:53:06.119033 End time: 2026-01-29 22:53:17.393174 2026-01-29 22:53:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:53:17 INFO tclean::::casa ########################################## 2026-01-29 22:53:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:53:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:53:17 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) 2026-01-29 22:53:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:53:17 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:53:17 2026****** 2026-01-29 22:53:17 INFO ImageFitter::fit+ 2026-01-29 22:53:17 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:53:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:53:17 INFO ImageFitter::fit+ --- region: 2026-01-29 22:53:17 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:53:17 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:53:17 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:53:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:53:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:53:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:53:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:53:17 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) 2026-01-29 22:53:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:53:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:53:17 INFO imstat::::casa ########################################## 2026-01-29 22:53:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:53:17 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 ) 2026-01-29 22:53:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:53:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:53:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:53:17 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:53:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:53:17 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) 2026-01-29 22:53:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:53:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:53:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:53:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:53:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:53:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:53:18 INFO imstat:::: Values --- 2026-01-29 22:53:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:53:18 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:53:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:53:18 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-01-29 22:53:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:53:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-01-29 22:53:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:53:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-01-29 22:53:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:53:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:53:18 INFO imstat:::: Statistics --- 2026-01-29 22:53:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:53:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:53:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:53:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:53:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-01-29 22:53:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-01-29 22:53:18 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-01-29 22:53:18 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-01-29 22:53:18 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-01-29 22:53:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:53:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:53:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:53:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:53:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:53:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:53:18 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777732e-05 4.999996e+00 2026-01-29 22:53:18 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:53:17.478438 End time: 2026-01-29 22:53:17.509217 2026-01-29 22:53:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:53:18 INFO imstat::::casa ########################################## 2026-01-29 22:53:18 INFO phaseshift::::casa ########################################## 2026-01-29 22:53:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:53:18 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 0.697578292rad' ) 2026-01-29 22:53:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:53:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:53:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:53:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:53:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:53:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:53:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:53:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:53:18 INFO MSTransformManager::open Select data 2026-01-29 22:53:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:53:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:53:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 0.697578292rad' successfully parsed 2026-01-29 22:53:20 INFO phaseshift::::casa Shift phase center 2026-01-29 22:53:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:53:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:53:17.526411 End time: 2026-01-29 22:53:20.276578 2026-01-29 22:53:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:53:20 INFO phaseshift::::casa ########################################## 2026-01-29 22:53:20 INFO tclean::::casa ########################################## 2026-01-29 22:53:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:53:20 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:53:20 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:53:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:53:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:53:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:53:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:53:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:53:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:53:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:53:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:53:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:53:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:53:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:53:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:53:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02226 2026-01-29 22:53:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:53:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:53:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:53:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:53:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:53:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:53:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:53:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:53:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:53:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:53:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:53:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:53:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:53:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:53:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:53:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:53:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:53:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:53:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:53:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:53:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:53:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:53:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:53:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:53:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:53:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:53:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:53:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:53:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:53:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:53:30 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:53:30 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:53:31 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:53:20.329244 End time: 2026-01-29 22:53:30.924769 2026-01-29 22:53:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:53:31 INFO tclean::::casa ########################################## 2026-01-29 22:53:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:53:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:53:31 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) 2026-01-29 22:53:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:53:31 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:53:31 2026****** 2026-01-29 22:53:31 INFO ImageFitter::fit+ 2026-01-29 22:53:31 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:53:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:53:31 INFO ImageFitter::fit+ --- region: 2026-01-29 22:53:31 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:53:31 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:53:31 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:53:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:53:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:53:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:53:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:53:31 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) 2026-01-29 22:53:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:53:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:53:31 INFO imstat::::casa ########################################## 2026-01-29 22:53:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:53:31 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 ) 2026-01-29 22:53:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:53:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:53:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:53:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:53:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:53:31 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) 2026-01-29 22:53:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:53:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:53:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:53:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:53:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:53:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:53:31 INFO imstat:::: Values --- 2026-01-29 22:53:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:53:31 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:53:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:53:31 INFO imstat:::: -- minimum value [min]: -7.7781e-05 Jy/beam 2026-01-29 22:53:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:53:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:53:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:53:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:53:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:53:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:53:31 INFO imstat:::: Statistics --- 2026-01-29 22:53:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:53:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:53:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:53:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:53:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-01-29 22:53:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73593e-05 Jy/beam 2026-01-29 22:53:31 INFO imstat:::: -- IQR [quartile]: 3.56161e-05 Jy/beam 2026-01-29 22:53:31 INFO imstat:::: -- First quartile [q1]: -3.45125e-05 Jy/beam 2026-01-29 22:53:31 INFO imstat:::: -- Third quartile [q3]: 1.10364e-06 Jy/beam 2026-01-29 22:53:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:53:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:53:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:53:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:53:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:53:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:53:31 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 2026-01-29 22:53:31 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:53:31.010691 End time: 2026-01-29 22:53:31.050951 2026-01-29 22:53:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:53:31 INFO imstat::::casa ########################################## 2026-01-29 22:53:31 INFO phaseshift::::casa ########################################## 2026-01-29 22:53:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:53:31 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 39d58m05.8512' ) 2026-01-29 22:53:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:53:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:53:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:53:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:53:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:53:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:53:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:53:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:53:31 INFO MSTransformManager::open Select data 2026-01-29 22:53:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:53:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:53:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39d58m05.8512' successfully parsed 2026-01-29 22:53:33 INFO phaseshift::::casa Shift phase center 2026-01-29 22:53:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:53:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:53:31.066800 End time: 2026-01-29 22:53:34.291982 2026-01-29 22:53:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:53:34 INFO phaseshift::::casa ########################################## 2026-01-29 22:53:34 INFO tclean::::casa ########################################## 2026-01-29 22:53:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:53:34 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 ) 2026-01-29 22:53:34 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:53:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:53:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:53:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:53:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:53:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:53:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:53:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:53:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:53:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:53:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:53:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:53:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:53:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025284 2026-01-29 22:53:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:53:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:53:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:53:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:53:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:53:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:53:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:53:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:53:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:53:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:53:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:53:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:53:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:53:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:53:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:53:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:53:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:53:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:53:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:53:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:53:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:53:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:53:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:53:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:53:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:53:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:53:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:53:42 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:53:42 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:53:42 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:53:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:53:43 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:53:44 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:53:34.344875 End time: 2026-01-29 22:53:43.626347 2026-01-29 22:53:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:53:44 INFO tclean::::casa ########################################## 2026-01-29 22:53:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:53:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:53:44 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:53:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:53:44 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:53:44 2026****** 2026-01-29 22:53:44 INFO ImageFitter::fit+ 2026-01-29 22:53:44 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:53:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:53:44 INFO ImageFitter::fit+ --- region: 2026-01-29 22:53:44 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:53:44 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:53:44 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:53:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:53:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:53:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:53:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:53:44 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:53:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:53:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:53:44 INFO imstat::::casa ########################################## 2026-01-29 22:53:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:53:44 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:53:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:53:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:53:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:53:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:53:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:53:44 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:53:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:53:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:53:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:53:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:53:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:53:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:53:44 INFO imstat:::: Values --- 2026-01-29 22:53:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:53:44 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:53:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:53:44 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-01-29 22:53:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:53:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:53:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:53:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:53:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:53:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:53:44 INFO imstat:::: Statistics --- 2026-01-29 22:53:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:53:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:53:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:53:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:53:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-01-29 22:53:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-01-29 22:53:44 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-01-29 22:53:44 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-01-29 22:53:44 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-01-29 22:53:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:53:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:53:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:53:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:53:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:53:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:53:44 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 2026-01-29 22:53:44 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:53:43.710318 End time: 2026-01-29 22:53:43.738720 2026-01-29 22:53:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:53:44 INFO imstat::::casa ########################################## 2026-01-29 22:53:44 INFO phaseshift::::casa ########################################## 2026-01-29 22:53:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:53:44 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 02:39:52.3901' ) 2026-01-29 22:53:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:53:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:53:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:53:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:53:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:53:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:53:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:53:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:53:44 INFO MSTransformManager::open Select data 2026-01-29 22:53:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:53:46 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 ".". 2026-01-29 22:53:46 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 02:39:52.3901' successfully parsed 2026-01-29 22:53:46 INFO phaseshift::::casa Shift phase center 2026-01-29 22:53:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:53:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:53:43.756316 End time: 2026-01-29 22:53:47.686200 2026-01-29 22:53:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:53:48 INFO phaseshift::::casa ########################################## 2026-01-29 22:53:48 INFO tclean::::casa ########################################## 2026-01-29 22:53:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:53:48 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 ) 2026-01-29 22:53:48 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:53:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:53:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:53:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:53:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:53:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:53:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:53:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:53:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:53:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:53:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:53:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:53:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:53:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029601 2026-01-29 22:53:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:53:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:53:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:53:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:53:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:53:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:53:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:53:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:53:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:53:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:53:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:53:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:53:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:53:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:53:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:53:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:53:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:53:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:53:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:53:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:53:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:53:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:53:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:53:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:53:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:53:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:53:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:53:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:53:57 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:53:57 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:53:57 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:53:58 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:53:58 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:54:00 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:53:47.746143 End time: 2026-01-29 22:54:00.073899 2026-01-29 22:54:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:54:00 INFO tclean::::casa ########################################## 2026-01-29 22:54:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:54:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:00 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:54:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:54:00 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:54:00 2026****** 2026-01-29 22:54:00 INFO ImageFitter::fit+ 2026-01-29 22:54:00 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:54:00 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:54:00 INFO ImageFitter::fit+ --- region: 2026-01-29 22:54:00 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:54:00 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:54:00 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:54:00 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:54:00 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:54:00 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:54:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:00 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:54:00 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:54:00 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:54:00 INFO imstat::::casa ########################################## 2026-01-29 22:54:00 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:54:00 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:54:00 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:54:00 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:54:00 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:54:00 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:54:00 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:00 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) 2026-01-29 22:54:00 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:54:00 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:54:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:54:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:54:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-01-29 22:54:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-01-29 22:54:00 INFO imstat:::: Values --- 2026-01-29 22:54:00 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:54:00 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:54:00 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:54:00 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-01-29 22:54:00 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:54:00 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:54:00 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:54:00 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:54:00 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:54:00 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:54:00 INFO imstat:::: Statistics --- 2026-01-29 22:54:00 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:54:00 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:54:00 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:54:00 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:54:00 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-01-29 22:54:00 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-01-29 22:54:00 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-01-29 22:54:00 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-01-29 22:54:00 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-01-29 22:54:00 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:54:00 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:54:00 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:54:00 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:54:00 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:54:00 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:54:00 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 2026-01-29 22:54:00 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:54:00.141686 End time: 2026-01-29 22:54:00.166996 2026-01-29 22:54:00 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:54:00 INFO imstat::::casa ########################################## 2026-01-29 22:54:00 INFO phaseshift::::casa ########################################## 2026-01-29 22:54:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:54:00 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39.968292000deg' ) 2026-01-29 22:54:00 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:54:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:54:00 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:54:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:54:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:54:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:54:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:54:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:54:00 INFO MSTransformManager::open Select data 2026-01-29 22:54:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:54:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:54:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39.968292000deg' successfully parsed 2026-01-29 22:54:03 INFO phaseshift::::casa Shift phase center 2026-01-29 22:54:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:54:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:54:00.183589 End time: 2026-01-29 22:54:03.171424 2026-01-29 22:54:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:54:03 INFO phaseshift::::casa ########################################## 2026-01-29 22:54:03 INFO tclean::::casa ########################################## 2026-01-29 22:54:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:54:03 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 ) 2026-01-29 22:54:03 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:54:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:54:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:54:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:54:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:54:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:54:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:54:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:54:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:54:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:54:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:54:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:54:04 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:54:04 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.016339 2026-01-29 22:54:04 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:54:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:54:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:54:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:54:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:54:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:54:06 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:54:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:54:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:54:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:54:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:54:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:54:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:54:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:54:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:54:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:54:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:54:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:54:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:54:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:54:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:54:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:54:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:54:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:54:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:54:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:54:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:54:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:54:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:54:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:54:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:54:10 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:54:11 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:54:03.230940 End time: 2026-01-29 22:54:11.160090 2026-01-29 22:54:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:54:11 INFO tclean::::casa ########################################## 2026-01-29 22:54:11 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:54:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:11 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) 2026-01-29 22:54:11 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:54:11 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:54:11 2026****** 2026-01-29 22:54:11 INFO ImageFitter::fit+ 2026-01-29 22:54:11 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:54:11 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:54:11 INFO ImageFitter::fit+ --- region: 2026-01-29 22:54:11 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:54:11 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:54:11 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:54:11 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:54:11 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:54:11 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:54:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:11 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) 2026-01-29 22:54:11 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:54:11 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:54:11 INFO imstat::::casa ########################################## 2026-01-29 22:54:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:54:11 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 ) 2026-01-29 22:54:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:54:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:54:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:54:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:54:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:11 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:54:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:54:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:54:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:54:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:54:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:54:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:54:11 INFO imstat:::: Values --- 2026-01-29 22:54:11 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:54:11 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:54:11 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:54:11 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-01-29 22:54:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:54:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:54:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:54:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:54:11 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:54:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:54:11 INFO imstat:::: Statistics --- 2026-01-29 22:54:11 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:54:11 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:54:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:54:11 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:54:11 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-01-29 22:54:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-01-29 22:54:11 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-01-29 22:54:11 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-01-29 22:54:11 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-01-29 22:54:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:54:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:54:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:54:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:54:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:54:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:54:11 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-01-29 22:54:11 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:54:11.238651 End time: 2026-01-29 22:54:11.265856 2026-01-29 22:54:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:54:11 INFO imstat::::casa ########################################## 2026-01-29 22:54:11 INFO phaseshift::::casa ########################################## 2026-01-29 22:54:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:54:11 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 0.697578292rad' ) 2026-01-29 22:54:11 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:54:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:54:11 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:54:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:54:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:54:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:54:11 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:54:11 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:54:11 INFO MSTransformManager::open Select data 2026-01-29 22:54:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:54:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:54:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 0.697578292rad' successfully parsed 2026-01-29 22:54:14 INFO phaseshift::::casa Shift phase center 2026-01-29 22:54:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:54:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:54:11.282903 End time: 2026-01-29 22:54:14.982004 2026-01-29 22:54:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:54:15 INFO phaseshift::::casa ########################################## 2026-01-29 22:54:15 INFO tclean::::casa ########################################## 2026-01-29 22:54:15 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:54:15 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 ) 2026-01-29 22:54:15 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:54:15 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:54:15 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:54:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:54:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:54:15 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:54:15 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:54:15 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:54:15 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:54:15 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:54:15 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:54:15 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:54:17 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:54:17 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025124 2026-01-29 22:54:17 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:54:17 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:54:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:54:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:54:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:54:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:54:18 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:54:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:54:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:54:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:54:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:54:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:54:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:54:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:54:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:54:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:54:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:54:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:54:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:54:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:54:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:54:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:54:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:54:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:54:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:54:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:54:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:54:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:54:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:54:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:54:27 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:54:27 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:54:30 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:54:15.048694 End time: 2026-01-29 22:54:30.312625 2026-01-29 22:54:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:54:30 INFO tclean::::casa ########################################## 2026-01-29 22:54:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:54:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:30 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) 2026-01-29 22:54:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:54:30 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:54:30 2026****** 2026-01-29 22:54:30 INFO ImageFitter::fit+ 2026-01-29 22:54:30 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:54:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:54:30 INFO ImageFitter::fit+ --- region: 2026-01-29 22:54:30 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:54:30 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:54:30 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:54:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:54:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:54:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:54:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:30 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) 2026-01-29 22:54:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:54:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:54:30 INFO imstat::::casa ########################################## 2026-01-29 22:54:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:54:30 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 ) 2026-01-29 22:54:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:54:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:54:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:54:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:54:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:30 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) 2026-01-29 22:54:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:54:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:54:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:54:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:54:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:54:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:54:30 INFO imstat:::: Values --- 2026-01-29 22:54:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:54:30 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:54:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:54:30 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-01-29 22:54:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:54:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:54:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:54:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:54:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:54:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:54:30 INFO imstat:::: Statistics --- 2026-01-29 22:54:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:54:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:54:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:54:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:54:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-01-29 22:54:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-01-29 22:54:30 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-01-29 22:54:30 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-01-29 22:54:30 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-01-29 22:54:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:54:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:54:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:54:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:54:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:54:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:54:30 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 2026-01-29 22:54:30 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:54:30.395472 End time: 2026-01-29 22:54:30.436611 2026-01-29 22:54:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:54:30 INFO imstat::::casa ########################################## 2026-01-29 22:54:30 INFO phaseshift::::casa ########################################## 2026-01-29 22:54:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:54:30 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 39d58m05.8512' ) 2026-01-29 22:54:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:54:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:54:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:54:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:54:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:54:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:54:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:54:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:54:31 INFO MSTransformManager::open Select data 2026-01-29 22:54:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:54:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:54:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39d58m05.8512' successfully parsed 2026-01-29 22:54:34 INFO phaseshift::::casa Shift phase center 2026-01-29 22:54:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:54:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:54:30.456397 End time: 2026-01-29 22:54:34.156965 2026-01-29 22:54:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:54:34 INFO phaseshift::::casa ########################################## 2026-01-29 22:54:34 INFO tclean::::casa ########################################## 2026-01-29 22:54:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:54:34 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 ) 2026-01-29 22:54:34 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:54:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:54:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:54:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:54:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:54:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:54:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:54:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:54:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:54:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:54:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:54:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:54:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:54:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024517 2026-01-29 22:54:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:54:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:54:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:54:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:54:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:54:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:54:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:54:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:54:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:54:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:54:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:54:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:54:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:54:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:54:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:54:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:54:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:54:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:54:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:54:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:54:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:54:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:54:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:54:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:54:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:54:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:54:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:54:42 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:54:42 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:54:42 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:54:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:54:43 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:54:44 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:54:34.217128 End time: 2026-01-29 22:54:43.600192 2026-01-29 22:54:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:54:44 INFO tclean::::casa ########################################## 2026-01-29 22:54:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:54:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:44 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:54:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:54:44 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:54:44 2026****** 2026-01-29 22:54:44 INFO ImageFitter::fit+ 2026-01-29 22:54:44 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:54:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:54:44 INFO ImageFitter::fit+ --- region: 2026-01-29 22:54:44 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:54:44 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:54:44 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:54:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:54:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:54:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:54:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:44 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:54:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:54:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:54:44 INFO imstat::::casa ########################################## 2026-01-29 22:54:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:54:44 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-01-29 22:54:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:54:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:54:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:54:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:54:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:44 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:54:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:54:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:54:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:54:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:54:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:54:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:54:44 INFO imstat:::: Values --- 2026-01-29 22:54:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:54:44 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:54:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:54:44 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-01-29 22:54:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:54:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:54:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:54:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:54:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:54:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:54:44 INFO imstat:::: Statistics --- 2026-01-29 22:54:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:54:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:54:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:54:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:54:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-01-29 22:54:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-01-29 22:54:44 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-01-29 22:54:44 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-01-29 22:54:44 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-01-29 22:54:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:54:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:54:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:54:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:54:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:54:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:54:44 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 2026-01-29 22:54:44 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:54:43.688285 End time: 2026-01-29 22:54:43.717214 2026-01-29 22:54:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:54:44 INFO imstat::::casa ########################################## 2026-01-29 22:54:44 INFO phaseshift::::casa ########################################## 2026-01-29 22:54:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:54:44 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 02:39:52.3901' ) 2026-01-29 22:54:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:54:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:54:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:54:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:54:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:54:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:54:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:54:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:54:44 INFO MSTransformManager::open Select data 2026-01-29 22:54:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:54:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-01-29 22:54:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 02:39:52.3901' successfully parsed 2026-01-29 22:54:45 INFO phaseshift::::casa Shift phase center 2026-01-29 22:54:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:54:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:54:43.735001 End time: 2026-01-29 22:54:45.929589 2026-01-29 22:54:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:54:46 INFO phaseshift::::casa ########################################## 2026-01-29 22:54:46 INFO tclean::::casa ########################################## 2026-01-29 22:54:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:54:46 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-01-29 22:54:46 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:54:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:54:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:54:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:54:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:54:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:54:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:54:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:54:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:54:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:54:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:54:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:54:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:54:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027819 2026-01-29 22:54:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:54:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:54:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:54:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:54:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:54:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:54:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:54:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:54:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:54:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:54:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:54:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:54:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:54:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:54:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:54:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:54:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:54:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:54:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:54:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:54:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:54:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:54:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:54:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-01-29 22:54:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:54:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:54:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:54:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:54:53 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:54:53 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:54:53 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:54:54 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:54:54 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:54:55 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:54:45.985092 End time: 2026-01-29 22:54:55.264952 2026-01-29 22:54:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:54:55 INFO tclean::::casa ########################################## 2026-01-29 22:54:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:54:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:55 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) 2026-01-29 22:54:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:54:55 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:54:55 2026****** 2026-01-29 22:54:55 INFO ImageFitter::fit+ 2026-01-29 22:54:55 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:54:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:54:55 INFO ImageFitter::fit+ --- region: 2026-01-29 22:54:55 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:54:55 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:54:55 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:54:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:54:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:54:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:54:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:55 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) 2026-01-29 22:54:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116885 Jy 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126501 Jy 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:54:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:54:55 INFO imstat::::casa ########################################## 2026-01-29 22:54:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:54:55 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 ) 2026-01-29 22:54:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:54:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:54:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:54:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:54:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:54:55 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) 2026-01-29 22:54:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:54:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:54:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:54:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:54:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-01-29 22:54:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-01-29 22:54:55 INFO imstat:::: Values --- 2026-01-29 22:54:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:54:55 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:54:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:54:55 INFO imstat:::: -- minimum value [min]: -7.78268e-05 Jy/beam 2026-01-29 22:54:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:54:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:54:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:54:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:54:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:54:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:54:55 INFO imstat:::: Statistics --- 2026-01-29 22:54:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:54:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:54:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:54:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:54:55 INFO imstat:::: -- Median of the pixel values [median]: -1.8675e-05 Jy/beam 2026-01-29 22:54:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73782e-05 Jy/beam 2026-01-29 22:54:55 INFO imstat:::: -- IQR [quartile]: 3.56598e-05 Jy/beam 2026-01-29 22:54:55 INFO imstat:::: -- First quartile [q1]: -3.45364e-05 Jy/beam 2026-01-29 22:54:55 INFO imstat:::: -- Third quartile [q3]: 1.12335e-06 Jy/beam 2026-01-29 22:54:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:54:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:54:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:54:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:54:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:54:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:54:55 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.782676e-05 4.999996e+00 2026-01-29 22:54:55 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:54:55.344138 End time: 2026-01-29 22:54:55.371402 2026-01-29 22:54:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:54:55 INFO imstat::::casa ########################################## 2026-01-29 22:54:55 INFO phaseshift::::casa ########################################## 2026-01-29 22:54:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:54:55 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39.968292000deg' ) 2026-01-29 22:54:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:54:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:54:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:54:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:54:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:54:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:54:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:54:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:54:55 INFO MSTransformManager::open Select data 2026-01-29 22:54:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:54:59 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:54:59 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39.968292000deg' successfully parsed 2026-01-29 22:54:59 INFO phaseshift::::casa Shift phase center 2026-01-29 22:54:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:54:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:54:55.388160 End time: 2026-01-29 22:54:59.147027 2026-01-29 22:54:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:54:59 INFO phaseshift::::casa ########################################## 2026-01-29 22:54:59 INFO tclean::::casa ########################################## 2026-01-29 22:54:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:54:59 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 ) 2026-01-29 22:54:59 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:54:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:54:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:54:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:54:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:54:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:54:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:54:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:54:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:54:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:54:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:54:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:55:00 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:55:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028705 2026-01-29 22:55:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:55:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:55:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:55:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:55:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:55:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:55:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:55:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:55:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:55:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:55:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:55:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:55:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:55:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:55:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:55:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:55:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:55:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:55:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:55:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:55:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:55:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:55:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:55:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:55:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:55:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:55:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:55:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:55:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:55:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:55:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:55:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:55:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:55:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:55:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:55:06 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:55:06 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:54:59.191023 End time: 2026-01-29 22:55:06.479401 2026-01-29 22:55:06 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:55:06 INFO tclean::::casa ########################################## 2026-01-29 22:55:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:55:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:55:07 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) 2026-01-29 22:55:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:55:07 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:55:07 2026****** 2026-01-29 22:55:07 INFO ImageFitter::fit+ 2026-01-29 22:55:07 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:55:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:55:07 INFO ImageFitter::fit+ --- region: 2026-01-29 22:55:07 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:55:07 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:55:07 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:55:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:55:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:55:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:55:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:55:07 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) 2026-01-29 22:55:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:55:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:55:07 INFO imstat::::casa ########################################## 2026-01-29 22:55:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:55:07 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 ) 2026-01-29 22:55:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:55:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:55:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:55:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:55:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:55:07 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) 2026-01-29 22:55:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:55:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:55:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:55:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:55:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:55:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:55:07 INFO imstat:::: Values --- 2026-01-29 22:55:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:55:07 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:55:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:55:07 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-01-29 22:55:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:55:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:55:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:55:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:55:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:55:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:55:07 INFO imstat:::: Statistics --- 2026-01-29 22:55:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:55:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:55:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:55:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:55:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-01-29 22:55:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-01-29 22:55:07 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-01-29 22:55:07 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-01-29 22:55:07 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-01-29 22:55:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:55:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:55:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:55:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:55:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:55:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:55:07 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 2026-01-29 22:55:07 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:55:06.552504 End time: 2026-01-29 22:55:06.586397 2026-01-29 22:55:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:55:07 INFO imstat::::casa ########################################## 2026-01-29 22:55:07 INFO phaseshift::::casa ########################################## 2026-01-29 22:55:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-01-29 22:55:07 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 0.697578292rad' ) 2026-01-29 22:55:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-01-29 22:55:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-01-29 22:55:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-01-29 22:55:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-01-29 22:55:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-01-29 22:55:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-01-29 22:55:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-01-29 22:55:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-01-29 22:55:07 INFO MSTransformManager::open Select data 2026-01-29 22:55:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-01-29 22:55:09 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-01-29 22:55:09 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 0.697578292rad' successfully parsed 2026-01-29 22:55:09 INFO phaseshift::::casa Shift phase center 2026-01-29 22:55:09 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-01-29 22:55:09 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-01-29 22:55:06.606680 End time: 2026-01-29 22:55:09.305786 2026-01-29 22:55:09 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-01-29 22:55:09 INFO phaseshift::::casa ########################################## 2026-01-29 22:55:09 INFO tclean::::casa ########################################## 2026-01-29 22:55:09 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-01-29 22:55:09 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 ) 2026-01-29 22:55:09 INFO tclean::::casa Verifying Input Parameters 2026-01-29 22:55:09 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-01-29 22:55:09 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-01-29 22:55:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:55:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-01-29 22:55:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-01-29 22:55:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-01-29 22:55:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-01-29 22:55:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-01-29 22:55:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-01-29 22:55:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-01-29 22:55:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-01-29 22:55:11 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-01-29 22:55:11 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027422 2026-01-29 22:55:11 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:55:11 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-01-29 22:55:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-01-29 22:55:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-01-29 22:55:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-01-29 22:55:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-01-29 22:55:12 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-01-29 22:55:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:55:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-01-29 22:55:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-01-29 22:55:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-01-29 22:55:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-01-29 22:55:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-01-29 22:55:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:55:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-01-29 22:55:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-01-29 22:55:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-01-29 22:55:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-01-29 22:55:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-01-29 22:55:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:55:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-01-29 22:55:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-01-29 22:55:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-01-29 22:55:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-01-29 22:55:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-01-29 22:55:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-01-29 22:55:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-01-29 22:55:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-01-29 22:55:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-01-29 22:55:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-01-29 22:55:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-01-29 22:55:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-01-29 22:55:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-01-29 22:55:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-01-29 22:55:18 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-01-29 22:55:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-01-29 22:55:20 INFO tclean::::casa Task tclean complete. Start time: 2026-01-29 22:55:09.355679 End time: 2026-01-29 22:55:19.654264 2026-01-29 22:55:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-01-29 22:55:20 INFO tclean::::casa ########################################## 2026-01-29 22:55:20 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-01-29 22:55:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:55:20 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-01-29 22:55:20 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-01-29 22:55:20 INFO ImageFitter::fit ****** Fit performed at Thu Jan 29 22:55:20 2026****** 2026-01-29 22:55:20 INFO ImageFitter::fit+ 2026-01-29 22:55:20 INFO ImageFitter::fit+ Input parameters --- 2026-01-29 22:55:20 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-01-29 22:55:20 INFO ImageFitter::fit+ --- region: 2026-01-29 22:55:20 INFO ImageFitter::fit+ --- channel: 0 2026-01-29 22:55:20 INFO ImageFitter::fit+ --- stokes: I 2026-01-29 22:55:20 INFO ImageFitter::fit+ --- mask: 2026-01-29 22:55:20 INFO ImageFitter::fit+ --- include pixel range: [] 2026-01-29 22:55:20 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-01-29 22:55:20 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-01-29 22:55:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:55:20 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-01-29 22:55:20 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ Position --- 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ Flux --- 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-01-29 22:55:20 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-01-29 22:55:20 INFO imstat::::casa ########################################## 2026-01-29 22:55:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-01-29 22:55:20 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 ) 2026-01-29 22:55:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-01-29 22:55:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-01-29 22:55:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-01-29 22:55:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-01-29 22:55:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-01-29 22:55:20 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-01-29 22:55:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-01-29 22:55:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-01-29 22:55:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-01-29 22:55:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-01-29 22:55:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-01-29 22:55:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-01-29 22:55:20 INFO imstat:::: Values --- 2026-01-29 22:55:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-01-29 22:55:20 INFO imstat:::: -- number of points [npts]: 65536 2026-01-29 22:55:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-01-29 22:55:20 INFO imstat:::: -- minimum value [min]: -7.77956e-05 Jy/beam 2026-01-29 22:55:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-01-29 22:55:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-01-29 22:55:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-01-29 22:55:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-01-29 22:55:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-01-29 22:55:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-01-29 22:55:20 INFO imstat:::: Statistics --- 2026-01-29 22:55:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-01-29 22:55:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-01-29 22:55:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-01-29 22:55:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-01-29 22:55:20 INFO imstat:::: -- Median of the pixel values [median]: -1.86648e-05 Jy/beam 2026-01-29 22:55:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73536e-05 Jy/beam 2026-01-29 22:55:20 INFO imstat:::: -- IQR [quartile]: 3.5639e-05 Jy/beam 2026-01-29 22:55:20 INFO imstat:::: -- First quartile [q1]: -3.45152e-05 Jy/beam 2026-01-29 22:55:20 INFO imstat:::: -- Third quartile [q3]: 1.12373e-06 Jy/beam 2026-01-29 22:55:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-01-29 22:55:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-01-29 22:55:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-01-29 22:55:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-01-29 22:55:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-01-29 22:55:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-01-29 22:55:20 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 2026-01-29 22:55:20 INFO imstat::::casa Task imstat complete. Start time: 2026-01-29 22:55:19.725428 End time: 2026-01-29 22:55:19.766491 2026-01-29 22:55:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-01-29 22:55:20 INFO imstat::::casa ########################################## . ---------------------------------------------------------------------- Ran 27 tests in 1228.733s OK Generating XML reports...