2026-02-10 09:02:20 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-02-10 09:02:20 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-02-10 09:02:20 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-02-10 09:02:20 INFO ::casa 2026-02-10 09:02:20 INFO ::casa config values 2026-02-10 09:02:20 INFO ::casa agg = False 2026-02-10 09:02:20 INFO ::casa cachedir = '/home/casatest/.casa' 2026-02-10 09:02:20 INFO ::casa casaconfig_verbose = 1 2026-02-10 09:02:20 INFO ::casa colors = 'Neutral' 2026-02-10 09:02:20 INFO ::casa data_auto_update = False 2026-02-10 09:02:20 INFO ::casa data_update_interval = 1 2026-02-10 09:02:20 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-02-10 09:02:20 INFO ::casa iplog = False 2026-02-10 09:02:20 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/ipython-20260210-090215.log' 2026-02-10 09:02:20 INFO ::casa log2term = True 2026-02-10 09:02:20 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/casa-20260210-090215.log' 2026-02-10 09:02:20 INFO ::casa measures_auto_update = False 2026-02-10 09:02:20 INFO ::casa measures_site = ['https://www.astron.nl/iers/', 'https://go.nrao.edu/iers/'] 2026-02-10 09:02:20 INFO ::casa measures_site_interval = 2 2026-02-10 09:02:20 INFO ::casa measures_update_interval = 1 2026-02-10 09:02:20 INFO ::casa measurespath = '/opt/casa/data/master' 2026-02-10 09:02:20 INFO ::casa nogui = False 2026-02-10 09:02:20 INFO ::casa nologfile = False 2026-02-10 09:02:20 INFO ::casa nologger = True 2026-02-10 09:02:20 INFO ::casa pipeline = False 2026-02-10 09:02:20 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-02-10 09:02:20 INFO ::casa user_site = False 2026-02-10 09:02:20 INFO ::casa 2026-02-10 09:02:20 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-02-10 09:02:20 INFO ::casa measures version : WSRT_Measures_20211217-160001.ztar 2026-02-10 09:02:20 INFO ::casa 2026-02-10 09:02:20 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-02-10 09:02:20 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/01/19/15:15, 2025/12/20/00:00:00 2026-02-10 09:02:20 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/01/19/15:15, 2025/12/20/00:00:00 2026-02-10 09:02:20 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/02/09/15:15, 2026/05/10/00:00:00 2026-02-10 09:02:20 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 6.7.5.4 -- Common Astronomy Software Applications [6.7.5.4] 2026-02-10 09:02:20 INFO phaseshift::::casa ########################################## 2026-02-10 09:02:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:02:20 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'} ) 2026-02-10 09:02:21 INFO MSTransformManager::parseMsSpecParams Input file name is /opt/casa/data/casatestdata/unittest/phaseshift/split11.ms 2026-02-10 09:02:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:02:21 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshift11.ms 2026-02-10 09:02:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:02:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:02:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:02:21 INFO MSTransformManager::open Select data 2026-02-10 09:02:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:02:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-02-10 09:02:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 1h27m38.337s +5d25m38.886s' successfully parsed for field 0 2026-02-10 09:02:27 INFO phaseshift::::casa Shift phase center 2026-02-10 09:02:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:02:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:02:20.462011 End time: 2026-02-10 09:02:28.396086 2026-02-10 09:02:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:02:28 INFO phaseshift::::casa ########################################## .2026-02-10 09:02:29 INFO phaseshift::::casa ########################################## 2026-02-10 09:02:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:02:29 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'} ) 2026-02-10 09:02:29 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-02-10 09:02:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:02:29 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-02-10 09:02:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:02:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:02:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:02:29 INFO MSTransformManager::open Select data 2026-02-10 09:02:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:02:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-02-10 09:02:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 19h53m50 40d06m00' successfully parsed for field 0 2026-02-10 09:02:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 22h01m02 40d04m03' successfully parsed for field 2 2026-02-10 09:02:34 INFO phaseshift::::casa Shift phase center 2026-02-10 09:02:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:02:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:02:28.512496 End time: 2026-02-10 09:02:36.802647 2026-02-10 09:02:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:02:37 INFO phaseshift::::casa ########################################## .2026-02-10 09:02:37 INFO phaseshift::::casa ########################################## 2026-02-10 09:02:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:02:37 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'} ) 2026-02-10 09:02:37 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-02-10 09:02:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:02:37 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-02-10 09:02:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:02:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:02:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:02:37 INFO MSTransformManager::open Select data 2026-02-10 09:02:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:02:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-02-10 09:02:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-02-10 09:02:45 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-02-10 09:02:45 INFO phaseshift::::casa Traceback (most recent call last): 2026-02-10 09:02:45 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-02-10 09:02:45 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'] ) 2026-02-10 09:02:45 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-10 09:02:45 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-02-10 09:02:45 INFO phaseshift::::casa+ mtlocal.open() 2026-02-10 09:02:45 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-02-10 09:02:45 INFO phaseshift::::casa+ return self._swigobj.open() 2026-02-10 09:02:45 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-02-10 09:02:45 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-02-10 09:02:45 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-02-10 09:02:45 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-10 09:02:45 INFO phaseshift::::casa+ RuntimeError: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-02-10 09:02:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:02:36.959757 End time: 2026-02-10 09:02:44.658969 2026-02-10 09:02:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:02:45 INFO phaseshift::::casa ########################################## .2026-02-10 09:02:45 INFO phaseshift::::casa ########################################## 2026-02-10 09:02:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:02:45 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'} ) 2026-02-10 09:02:45 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-02-10 09:02:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:02:45 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-02-10 09:02:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:02:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:02:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:02:45 INFO MSTransformManager::open Select data 2026-02-10 09:02:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:02:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-02-10 09:02:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-02-10 09:02:50 INFO phaseshift::::casa Shift phase center 2026-02-10 09:02:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:02:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:02:44.758840 End time: 2026-02-10 09:02:51.769089 2026-02-10 09:02:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:02:52 INFO phaseshift::::casa ########################################## .2026-02-10 09:02:52 INFO phaseshift::::casa ########################################## 2026-02-10 09:02:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:02:52 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'} ) 2026-02-10 09:02:52 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-02-10 09:02:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:02:52 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-02-10 09:02:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:02:52 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-02-10 09:02:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:02:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:02:52 INFO MSTransformManager::open Select data 2026-02-10 09:02:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:02:52 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-02-10 09:03:02 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-02-10 09:03:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 1 2026-02-10 09:03:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 22h01m02 40d04m03' successfully parsed for field 2 2026-02-10 09:03:02 INFO phaseshift::::casa Shift phase center 2026-02-10 09:03:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:03:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:02:51.961799 End time: 2026-02-10 09:03:02.775025 2026-02-10 09:03:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:03:03 INFO phaseshift::::casa ########################################## .2026-02-10 09:03:03 INFO phaseshift::::casa ########################################## 2026-02-10 09:03:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:03:03 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'} ) 2026-02-10 09:03:03 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-02-10 09:03:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:03:03 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-02-10 09:03:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:03:03 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-02-10 09:03:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:03:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:03:03 INFO MSTransformManager::open Select data 2026-02-10 09:03:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:03:03 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-02-10 09:03:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-02-10 09:03:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m50 40d06m00' successfully parsed for field 0 2026-02-10 09:03:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 22h01m02 40d04m03' successfully parsed for field 2 2026-02-10 09:03:08 INFO phaseshift::::casa Shift phase center 2026-02-10 09:03:11 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:03:11 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:03:02.931811 End time: 2026-02-10 09:03:11.014882 2026-02-10 09:03:11 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:03:11 INFO phaseshift::::casa ########################################## .2026-02-10 09:03:11 INFO phaseshift::::casa ########################################## 2026-02-10 09:03:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:03:11 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' ) 2026-02-10 09:03:11 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-02-10 09:03:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:03:11 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-02-10 09:03:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:03:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:03:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:03:11 INFO MSTransformManager::open Select data 2026-02-10 09:03:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:03:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:03:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-02-10 09:03:17 INFO phaseshift::::casa Shift phase center 2026-02-10 09:03:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:03:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:03:11.140492 End time: 2026-02-10 09:03:19.688607 2026-02-10 09:03:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:03:20 INFO phaseshift::::casa ########################################## ..2026-02-10 09:03:22 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) Requested JD 0 is outside the range of the IERS (Earth axis data) table. 2026-02-10 09:03:22 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) + Calculations will proceed with less precision ..2026-02-10 09:03:22 SEVERE Error in QuantumHolder::fromString with input string "xxh53m50": Illegal input units or format 2026-02-10 09:03:22 SEVERE + in converting quantity from string 2026-02-10 09:03:22 SEVERE Exception Reported: Empty QuantumHolder argument for asQuantumDouble 2026-02-10 09:03:22 SEVERE Exception Reports: Empty QuantumHolder argument for asQuantumDouble 2026-02-10 09:03:22 SEVERE phaseshift::::casa *** Error measures.direction() failed for phasecenter string: BOGUS xxh53m50 40d06m00 when interpreting parameter 'phasecenter': ...2026-02-10 09:03:28 INFO phaseshift::::casa ########################################## 2026-02-10 09:03:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:03:28 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' ) 2026-02-10 09:03:28 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-02-10 09:03:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:03:28 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-02-10 09:03:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:03:28 INFO MSTransformManager::parseDataSelParams array selection is 1 2026-02-10 09:03:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:03:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:03:28 INFO MSTransformManager::open Select data 2026-02-10 09:03:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:03:28 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-02-10 09:03:28 INFO phaseshift::::casa Traceback (most recent call last): 2026-02-10 09:03:28 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-02-10 09:03:28 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'] ) 2026-02-10 09:03:28 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-10 09:03:28 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-02-10 09:03:28 INFO phaseshift::::casa+ mtlocal.open() 2026-02-10 09:03:28 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-02-10 09:03:28 INFO phaseshift::::casa+ return self._swigobj.open() 2026-02-10 09:03:28 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-02-10 09:03:28 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-02-10 09:03:28 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-02-10 09:03:28 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-10 09:03:28 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-02-10 09:03:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:03:28.236042 End time: 2026-02-10 09:03:28.321666 2026-02-10 09:03:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:03:28 INFO phaseshift::::casa ########################################## 2026-02-10 09:03:28 INFO phaseshift::::casa ########################################## 2026-02-10 09:03:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:03:28 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' ) 2026-02-10 09:03:28 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-02-10 09:03:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:03:28 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-02-10 09:03:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:03:28 INFO MSTransformManager::parseDataSelParams array selection is 0 2026-02-10 09:03:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:03:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:03:28 INFO MSTransformManager::open Select data 2026-02-10 09:03:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:04:13 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-02-10 09:04:13 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-02-10 09:04:15 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:04:15 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-02-10 09:04:15 INFO phaseshift::::casa Shift phase center 2026-02-10 09:04:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:04:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:03:28.323503 End time: 2026-02-10 09:04:17.932297 2026-02-10 09:04:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:04:18 INFO phaseshift::::casa ########################################## .2026-02-10 09:04:19 INFO phaseshift::::casa ########################################## 2026-02-10 09:04:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:04:19 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' ) 2026-02-10 09:04:19 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-02-10 09:04:19 INFO MSTransformManager::parseMsSpecParams Data column is MODEL 2026-02-10 09:04:19 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-02-10 09:04:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:04:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:04:19 WARN MSTransformManager::checkDataColumnsToFill MODEL_DATA column requested but not available in input MS 2026-02-10 09:04:19 INFO MSTransformManager::open Select data 2026-02-10 09:04:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:04:19 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). 2026-02-10 09:04:19 INFO phaseshift::::casa Traceback (most recent call last): 2026-02-10 09:04:19 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-02-10 09:04:19 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'] ) 2026-02-10 09:04:19 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-10 09:04:19 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-02-10 09:04:19 INFO phaseshift::::casa+ mtlocal.open() 2026-02-10 09:04:19 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-02-10 09:04:19 INFO phaseshift::::casa+ return self._swigobj.open() 2026-02-10 09:04:19 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-02-10 09:04:19 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-02-10 09:04:19 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-02-10 09:04:19 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-10 09:04:19 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). 2026-02-10 09:04:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:04:19.095089 End time: 2026-02-10 09:04:19.126266 2026-02-10 09:04:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:04:19 INFO phaseshift::::casa ########################################## 2026-02-10 09:04:19 INFO phaseshift::::casa ########################################## 2026-02-10 09:04:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:04:19 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' ) 2026-02-10 09:04:19 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-02-10 09:04:19 INFO MSTransformManager::parseMsSpecParams Data column is DATA 2026-02-10 09:04:19 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-02-10 09:04:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:04:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:04:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:04:19 INFO MSTransformManager::open Select data 2026-02-10 09:04:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:04:25 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-02-10 09:04:25 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-02-10 09:04:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:04:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-02-10 09:04:29 INFO phaseshift::::casa Shift phase center 2026-02-10 09:04:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:04:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:04:19.127219 End time: 2026-02-10 09:04:30.538393 2026-02-10 09:04:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:04:31 INFO phaseshift::::casa ########################################## .2026-02-10 09:04:32 INFO phaseshift::::casa ########################################## 2026-02-10 09:04:32 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:04:32 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' ) 2026-02-10 09:04:32 INFO MSTransformManager::parseMsSpecParams Input file name is Itziar_copy.ms 2026-02-10 09:04:32 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:04:32 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-02-10 09:04:32 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:04:32 INFO MSTransformManager::parseDataSelParams field selection is 2 2026-02-10 09:04:32 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:04:32 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:04:32 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:04:32 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:04:32 INFO MSTransformManager::open Select data 2026-02-10 09:04:32 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:04:32 INFO MSTransformDataHandler::makeSelection 6125 out of 245000 rows are going to be considered due to the selection criteria. 2026-02-10 09:04:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:04:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 00h00m01 -29d55m40' successfully parsed 2026-02-10 09:04:38 INFO phaseshift::::casa Shift phase center 2026-02-10 09:04:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:04:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:04:31.729499 End time: 2026-02-10 09:04:39.038938 2026-02-10 09:04:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:04:39 INFO phaseshift::::casa ########################################## .2026-02-10 09:04:40 INFO phaseshift::::casa ########################################## 2026-02-10 09:04:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:04:40 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' ) 2026-02-10 09:04:40 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-02-10 09:04:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:04:40 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-02-10 09:04:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:04:40 INFO MSTransformManager::parseDataSelParams scan intent selection is *FLUX* 2026-02-10 09:04:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:04:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:04:40 INFO MSTransformManager::open Select data 2026-02-10 09:04:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:04:40 INFO MSTransformDataHandler::makeSelection 570 out of 6270 rows are going to be considered due to the selection criteria. 2026-02-10 09:04:45 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-02-10 09:04:45 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-02-10 09:04:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:04:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-02-10 09:04:48 INFO phaseshift::::casa Shift phase center 2026-02-10 09:04:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:04:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:04:40.106859 End time: 2026-02-10 09:04:49.514095 2026-02-10 09:04:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:04:50 INFO phaseshift::::casa ########################################## .2026-02-10 09:04:51 INFO phaseshift::::casa ########################################## 2026-02-10 09:04:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:04:51 INFO phaseshift::::casa phaseshift( vis='mms_copy.mms', outputvis='phaseshiftout.ms', keepmms=False, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 05h30m48 13d31m48' ) 2026-02-10 09:04:51 INFO MSTransformManager::parseMsSpecParams Input file name is mms_copy.mms 2026-02-10 09:04:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:04:51 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-02-10 09:04:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:04:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:04:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:04:51 INFO MSTransformManager::open Select data 2026-02-10 09:04:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:04:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:04:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 05h30m48 13d31m48' successfully parsed 2026-02-10 09:04:56 INFO phaseshift::::casa Shift phase center 2026-02-10 09:04:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:04:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:04:50.809327 End time: 2026-02-10 09:04:57.604276 2026-02-10 09:04:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:04:58 INFO phaseshift::::casa ########################################## .2026-02-10 09:04:59 INFO phaseshift::::casa ########################################## 2026-02-10 09:04:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:04:59 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' ) 2026-02-10 09:04:59 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-02-10 09:04:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:04:59 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-02-10 09:04:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:04:59 INFO MSTransformManager::parseDataSelParams observation selection is 1 2026-02-10 09:04:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:04:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:04:59 INFO MSTransformManager::open Select data 2026-02-10 09:04:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:04:59 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-02-10 09:04:59 INFO phaseshift::::casa Traceback (most recent call last): 2026-02-10 09:04:59 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-02-10 09:04:59 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'] ) 2026-02-10 09:04:59 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-10 09:04:59 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-02-10 09:04:59 INFO phaseshift::::casa+ mtlocal.open() 2026-02-10 09:04:59 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-02-10 09:04:59 INFO phaseshift::::casa+ return self._swigobj.open() 2026-02-10 09:04:59 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-02-10 09:04:59 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-02-10 09:04:59 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-02-10 09:04:59 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-10 09:04:59 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-02-10 09:04:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:04:58.575645 End time: 2026-02-10 09:04:58.628743 2026-02-10 09:04:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:04:59 INFO phaseshift::::casa ########################################## 2026-02-10 09:04:59 INFO phaseshift::::casa ########################################## 2026-02-10 09:04:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:04:59 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' ) 2026-02-10 09:04:59 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-02-10 09:04:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:04:59 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-02-10 09:04:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:04:59 INFO MSTransformManager::parseDataSelParams observation selection is 0 2026-02-10 09:04:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:04:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:04:59 INFO MSTransformManager::open Select data 2026-02-10 09:04:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:05:03 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-02-10 09:05:03 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-02-10 09:05:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:05:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-02-10 09:05:06 INFO phaseshift::::casa Shift phase center 2026-02-10 09:05:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:05:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:04:58.629970 End time: 2026-02-10 09:05:07.306943 2026-02-10 09:05:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:05:07 INFO phaseshift::::casa ########################################## .2026-02-10 09:05:09 INFO phaseshift::::casa ########################################## 2026-02-10 09:05:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:05:09 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-02-10 09:05:09 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-02-10 09:05:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:05:09 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-02-10 09:05:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:05:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:05:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:05:09 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:05:09 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:05:09 INFO MSTransformManager::open Select data 2026-02-10 09:05:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:05:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:05:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-02-10 09:05:13 INFO phaseshift::::casa Shift phase center 2026-02-10 09:05:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:05:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:05:08.508144 End time: 2026-02-10 09:05:15.213271 2026-02-10 09:05:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:05:15 INFO phaseshift::::casa ########################################## .2026-02-10 09:05:16 INFO phaseshift::::casa ########################################## 2026-02-10 09:05:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:05:16 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='' ) 2026-02-10 09:05:16 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: phasecenter parameter must be specified 2026-02-10 09:05:16 INFO phaseshift::::casa Traceback (most recent call last): 2026-02-10 09:05:16 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-02-10 09:05:16 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'] ) 2026-02-10 09:05:16 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-10 09:05:16 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-4-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 31, in phaseshift 2026-02-10 09:05:16 INFO phaseshift::::casa+ raise ValueError("phasecenter parameter must be specified") 2026-02-10 09:05:16 INFO phaseshift::::casa+ ValueError: phasecenter parameter must be specified 2026-02-10 09:05:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:05:16.141125 End time: 2026-02-10 09:05:16.142415 2026-02-10 09:05:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:05:16 INFO phaseshift::::casa ########################################## 2026-02-10 09:05:16 INFO phaseshift::::casa ########################################## 2026-02-10 09:05:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:05:16 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' ) 2026-02-10 09:05:16 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-02-10 09:05:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:05:16 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-02-10 09:05:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:05:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:05:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:05:16 INFO MSTransformManager::open Select data 2026-02-10 09:05:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:05:21 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-02-10 09:05:21 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-02-10 09:05:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:05:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -08d23m35' successfully parsed 2026-02-10 09:05:24 INFO phaseshift::::casa Shift phase center 2026-02-10 09:05:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:05:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:05:16.143343 End time: 2026-02-10 09:05:25.398780 2026-02-10 09:05:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:05:25 INFO phaseshift::::casa ########################################## .2026-02-10 09:05:26 INFO phaseshift::::casa ########################################## 2026-02-10 09:05:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:05:26 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='00h06m14 -08d23m35' ) 2026-02-10 09:05:26 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-02-10 09:05:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:05:26 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-02-10 09:05:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:05:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:05:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:05:26 INFO MSTransformManager::open Select data 2026-02-10 09:05:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:05:31 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-02-10 09:05:31 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-02-10 09:05:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:05:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center '00h06m14 -08d23m35' successfully parsed 2026-02-10 09:05:33 INFO phaseshift::::casa Shift phase center 2026-02-10 09:05:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:05:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:05:26.452962 End time: 2026-02-10 09:05:34.306478 2026-02-10 09:05:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:05:34 INFO phaseshift::::casa ########################################## .2026-02-10 09:05:35 INFO phaseshift::::casa ########################################## 2026-02-10 09:05:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:05:35 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' ) 2026-02-10 09:05:36 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-02-10 09:05:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:05:36 INFO MSTransformManager::parseMsSpecParams Output file name is post_phaseshift.ms 2026-02-10 09:05:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:05:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:05:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:05:36 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:05:36 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:05:36 INFO MSTransformManager::open Select data 2026-02-10 09:05:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:05:40 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:05:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-02-10 09:05:40 INFO phaseshift::::casa Shift phase center 2026-02-10 09:05:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:05:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:05:35.495953 End time: 2026-02-10 09:05:42.332124 2026-02-10 09:05:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:05:42 INFO phaseshift::::casa ########################################## 2026-02-10 09:05:42 INFO tclean::::casa ########################################## 2026-02-10 09:05:42 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:05:42 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 ) 2026-02-10 09:05:42 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:05:42 INFO SynthesisImagerVi2::selectData MS : datacopy.ms | [Opened in readonly mode] 2026-02-10 09:05:42 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-02-10 09:05:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-02-10 09:05:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-02-10 09:05:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:05:43 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-02-10 09:05:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_pre] with ftmachine : wprojectft 2026-02-10 09:05:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.66 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:05:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:05:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_pre] : hogbom 2026-02-10 09:05:43 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:05:43 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-02-10 09:05:43 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-02-10 09:05:43 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-02-10 09:05:43 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-02-10 09:06:04 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 2026-02-10 09:06:05 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 0%....10....20....30....40....50....60....70....80....90....100% 2026-02-10 09:06:50 INFO SIImageStore::calcSensitivity [im2_pre] Theoretical sensitivity (Jy/bm):0.00204403 2026-02-10 09:06:50 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.115837 2026-02-10 09:06:50 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-02-10 09:06:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:06:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:06:55 INFO task_tclean::SDAlgorithmBase::restore [im2_pre] : Restoring model image. 2026-02-10 09:06:55 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. 2026-02-10 09:06:57 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-02-10 09:06:58 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'] 2026-02-10 09:07:00 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:05:42.449695 End time: 2026-02-10 09:07:00.439676 2026-02-10 09:07:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:07:00 INFO tclean::::casa ########################################## 2026-02-10 09:07:00 INFO tclean::::casa ########################################## 2026-02-10 09:07:00 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:07:00 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 ) 2026-02-10 09:07:00 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:07:00 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-02-10 09:07:01 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-02-10 09:07:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-02-10 09:07:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-02-10 09:07:01 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:07:01 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-02-10 09:07:01 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift] with ftmachine : wprojectft 2026-02-10 09:07:01 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.64 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:07:01 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:07:01 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift] : hogbom 2026-02-10 09:07:01 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:07:02 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-02-10 09:07:02 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-02-10 09:07:02 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-02-10 09:07:02 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-02-10 09:07:18 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 2026-02-10 09:07:18 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 0%....10....20....30....40....50....60....70....80....90....100% 2026-02-10 09:07:24 INFO SIImageStore::calcSensitivity [im2_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00204403 2026-02-10 09:07:24 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.118181 2026-02-10 09:07:24 INFO SIImageStore::printBeamSet Beam : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-02-10 09:07:24 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:07:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:07:29 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift] : Restoring model image. 2026-02-10 09:07:29 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. 2026-02-10 09:07:30 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-02-10 09:07:31 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'] 2026-02-10 09:07:33 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:07:00.475095 End time: 2026-02-10 09:07:33.215061 2026-02-10 09:07:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:07:33 INFO tclean::::casa ########################################## 2026-02-10 09:07:33 INFO tclean::::casa ########################################## 2026-02-10 09:07:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:07:33 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 ) 2026-02-10 09:07:33 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:07:33 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-02-10 09:07:33 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-02-10 09:07:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-02-10 09:07:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-02-10 09:07:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:07:34 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-02-10 09:07:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift_tclean_phasecenter] with ftmachine : wprojectft 2026-02-10 09:07:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.66 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:07:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:07:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift_tclean_phasecenter] : hogbom 2026-02-10 09:07:34 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:07:34 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-02-10 09:07:34 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-02-10 09:07:34 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-02-10 09:07:34 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-02-10 09:07:51 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-02-10 09:07:51 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 2026-02-10 09:07:54 INFO SIImageStore::calcSensitivity [im2_post_phaseshift_tclean_phasecenter] Theoretical sensitivity (Jy/bm):0.00204403 2026-02-10 09:07:55 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.119894 2026-02-10 09:07:55 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-02-10 09:07:55 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:08:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:08:08 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift_tclean_phasecenter] : Restoring model image. 2026-02-10 09:08:08 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. 2026-02-10 09:08:10 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-02-10 09:08:10 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'] 2026-02-10 09:08:14 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:07:33.254500 End time: 2026-02-10 09:08:13.562066 2026-02-10 09:08:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:08:14 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} .2026-02-10 09:08:15 INFO phaseshift::::casa ########################################## 2026-02-10 09:08:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:08:15 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' ) 2026-02-10 09:08:15 INFO MSTransformManager::parseMsSpecParams Input file name is ngc_copy.ms 2026-02-10 09:08:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:08:15 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-02-10 09:08:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:08:15 INFO MSTransformManager::parseDataSelParams spw selection is 1 2026-02-10 09:08:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:08:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:08:15 INFO MSTransformManager::initDataSelectionParams Selected SPWs Ids are Axis Lengths: [1, 4] (NB: Matrix in Row/Column order) 2026-02-10 09:08:15 INFO MSTransformManager::initDataSelectionParams+ [1, 0, 4, 1] 2026-02-10 09:08:15 INFO MSTransformManager::open Select data 2026-02-10 09:08:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:08:15 INFO MSTransformDataHandler::makeSelection 13338 out of 26676 rows are going to be considered due to the selection criteria. 2026-02-10 09:08:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:08:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 23h11m54 61d10m54' successfully parsed 2026-02-10 09:08:27 INFO phaseshift::::casa Shift phase center 2026-02-10 09:08:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:08:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:08:14.757383 End time: 2026-02-10 09:08:29.986223 2026-02-10 09:08:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:08:30 INFO phaseshift::::casa ########################################## .2026-02-10 09:08:31 INFO phaseshift::::casa ########################################## 2026-02-10 09:08:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:08:31 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-02-10 09:08:31 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-02-10 09:08:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:08:31 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-02-10 09:08:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:08:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:08:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:08:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:08:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:08:31 INFO MSTransformManager::open Select data 2026-02-10 09:08:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:08:37 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:08:37 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-02-10 09:08:37 INFO phaseshift::::casa Shift phase center 2026-02-10 09:08:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:08:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:08:31.238930 End time: 2026-02-10 09:08:39.052341 2026-02-10 09:08:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:08:39 INFO phaseshift::::casa ########################################## .2026-02-10 09:08:40 INFO phaseshift::::casa ########################################## 2026-02-10 09:08:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:08:40 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' ) 2026-02-10 09:08:40 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:08:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:08:40 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:08:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:08:40 INFO MSTransformManager::parseDataSelParams field selection is 0 2026-02-10 09:08:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:08:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:08:40 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:08:40 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:08:40 INFO MSTransformManager::open Select data 2026-02-10 09:08:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:08:40 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-02-10 09:08:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:08:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-02-10 09:08:44 INFO phaseshift::::casa Shift phase center 2026-02-10 09:08:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:08:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:08:39.781446 End time: 2026-02-10 09:08:45.079632 2026-02-10 09:08:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:08:45 INFO phaseshift::::casa ########################################## 2026-02-10 09:08:45 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-02-10 09:08:45 INFO tclean::::casa ########################################## 2026-02-10 09:08:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:08:45 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:08:45 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:08:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:08:45 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-02-10 09:08:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:08:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:08:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:08:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-02-10 09:08:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:08:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.65 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:08:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:08:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:08:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:08:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-02-10 09:08:48 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028786 2026-02-10 09:08:48 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-02-10 09:08:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:08:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:08:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:08:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:08:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:08:52 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:08:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:08:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-02-10 09:08:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:08:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:08:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:08:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:08:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:08:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-02-10 09:08:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-02-10 09:08:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:08:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:09:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-02-10 09:09:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:09:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-02-10 09:09:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-02-10 09:09:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:09:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:09:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-02-10 09:09:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:09:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-02-10 09:09:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-02-10 09:09:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:09:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:09:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-02-10 09:09:10 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:09:10 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:09:10 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:09:12 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-02-10 09:09:12 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'] 2026-02-10 09:09:15 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:08:45.354707 End time: 2026-02-10 09:09:15.004778 2026-02-10 09:09:15 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:09:15 INFO tclean::::casa ########################################## 2026-02-10 09:09:15 INFO imstat::::casa ########################################## 2026-02-10 09:09:15 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:09:15 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 ) 2026-02-10 09:09:15 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:09:15 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:09:15 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:09:15 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:09:15 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:09:15 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) 2026-02-10 09:09:15 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:09:15 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:09:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:09:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:09:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-02-10 09:09:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-02-10 09:09:15 INFO imstat:::: Values --- 2026-02-10 09:09:15 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-02-10 09:09:15 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:09:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:09:15 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-02-10 09:09:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-02-10 09:09:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-02-10 09:09:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-02-10 09:09:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-02-10 09:09:15 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-02-10 09:09:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-02-10 09:09:15 INFO imstat:::: Statistics --- 2026-02-10 09:09:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-02-10 09:09:15 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-02-10 09:09:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-02-10 09:09:15 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-02-10 09:09:15 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-02-10 09:09:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-02-10 09:09:15 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-02-10 09:09:15 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-02-10 09:09:15 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-02-10 09:09:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:09:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:09:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:09:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:09:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:09:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:09:15 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 2026-02-10 09:09:15 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:09:15.031202 End time: 2026-02-10 09:09:15.078462 2026-02-10 09:09:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:09:15 INFO imstat::::casa ########################################## 2026-02-10 09:09:15 INFO phaseshift::::casa ########################################## 2026-02-10 09:09:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:09:15 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' ) 2026-02-10 09:09:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:09:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:09:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:09:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:09:15 INFO MSTransformManager::parseDataSelParams field selection is fake 2026-02-10 09:09:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:09:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:09:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:09:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:09:15 INFO MSTransformManager::open Select data 2026-02-10 09:09:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:09:15 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-02-10 09:09:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:09:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-02-10 09:09:20 INFO phaseshift::::casa Shift phase center 2026-02-10 09:09:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:09:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:09:15.095681 End time: 2026-02-10 09:09:22.126583 2026-02-10 09:09:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:09:22 INFO phaseshift::::casa ########################################## 2026-02-10 09:09:22 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-02-10 09:09:22 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-02-10 09:09:22 INFO tclean::::casa ########################################## 2026-02-10 09:09:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:09:22 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:09:22 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:09:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:09:22 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-02-10 09:09:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:09:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:09:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:09:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-02-10 09:09:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:09:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.65 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:09:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:09:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:09:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:09:24 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-02-10 09:09:24 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029914 2026-02-10 09:09:24 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-02-10 09:09:24 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:09:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:09:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:09:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:09:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:09:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:09:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:09:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-02-10 09:09:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:09:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:09:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:09:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:09:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:09:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-02-10 09:09:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-02-10 09:09:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:09:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:09:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-02-10 09:09:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:09:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-02-10 09:09:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-02-10 09:09:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:09:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:09:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-02-10 09:09:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:09:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-02-10 09:09:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-02-10 09:09:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:09:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:09:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-02-10 09:09:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:09:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:09:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:09:39 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-02-10 09:09:40 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'] 2026-02-10 09:09:43 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:09:22.227748 End time: 2026-02-10 09:09:42.809237 2026-02-10 09:09:43 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:09:43 INFO tclean::::casa ########################################## 2026-02-10 09:09:43 INFO imstat::::casa ########################################## 2026-02-10 09:09:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:09:43 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 ) 2026-02-10 09:09:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:09:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:09:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:09:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:09:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:09:43 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) 2026-02-10 09:09:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:09:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:09:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:09:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:09:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-02-10 09:09:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-02-10 09:09:43 INFO imstat:::: Values --- 2026-02-10 09:09:43 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-02-10 09:09:43 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:09:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:09:43 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-02-10 09:09:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-02-10 09:09:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-02-10 09:09:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-02-10 09:09:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-02-10 09:09:43 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-02-10 09:09:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-02-10 09:09:43 INFO imstat:::: Statistics --- 2026-02-10 09:09:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-02-10 09:09:43 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-02-10 09:09:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-02-10 09:09:43 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-02-10 09:09:43 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-02-10 09:09:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-02-10 09:09:43 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-02-10 09:09:43 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-02-10 09:09:43 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-02-10 09:09:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:09:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:09:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:09:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:09:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:09:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:09:43 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 2026-02-10 09:09:43 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:09:42.814658 End time: 2026-02-10 09:09:42.854376 2026-02-10 09:09:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:09:43 INFO imstat::::casa ########################################## 2026-02-10 09:09:43 INFO phaseshift::::casa ########################################## 2026-02-10 09:09:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:09:43 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-02-10 09:09:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:09:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:09:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:09:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:09:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:09:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:09:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:09:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:09:43 INFO MSTransformManager::open Select data 2026-02-10 09:09:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:09:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:09:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-02-10 09:09:48 INFO phaseshift::::casa Shift phase center 2026-02-10 09:09:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:09:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:09:42.875005 End time: 2026-02-10 09:09:49.798734 2026-02-10 09:09:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:09:50 INFO phaseshift::::casa ########################################## 2026-02-10 09:09:50 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-02-10 09:09:50 INFO tclean::::casa ########################################## 2026-02-10 09:09:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:09:50 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 ) 2026-02-10 09:09:50 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:09:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:09:50 INFO SynthesisImagerVi2::selectData NRows selected : 7020 2026-02-10 09:09:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:09:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:09:50 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:09:50 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:09:50 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:09:50 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.65 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:09:50 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:09:50 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:09:50 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:09:52 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00843949 2026-02-10 09:09:52 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027258 2026-02-10 09:09:52 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-02-10 09:09:52 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:09:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:09:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:09:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:09:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:09:56 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:09:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6069034934043884, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:09:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.606903, CycleNiter=20, Gain=0.3 2026-02-10 09:09:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:09:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:09:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:10:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:10:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07140088081359863, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:10:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0714009, CycleNiter=14, Gain=0.3 2026-02-10 09:10:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-02-10 09:10:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:10:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:10:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-02-10 09:10:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00840018317103386, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:10:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00840018, CycleNiter=8, Gain=0.3 2026-02-10 09:10:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-02-10 09:10:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:10:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:10:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814189, over full image : 0.00814189 2026-02-10 09:10:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009882674785330892, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:10:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000988267, CycleNiter=2, Gain=0.3 2026-02-10 09:10:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814189->0.00279267, Reached cycleniter. 2026-02-10 09:10:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:10:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:10:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0027928, over full image : 0.0027928 2026-02-10 09:10:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:10:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:10:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:10:15 INFO SIImageStore::restore Beam for chan : 0 : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-02-10 09:10:16 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'] 2026-02-10 09:10:18 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:09:50.027911 End time: 2026-02-10 09:10:18.376282 2026-02-10 09:10:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:10:18 INFO tclean::::casa ########################################## 2026-02-10 09:10:18 INFO imstat::::casa ########################################## 2026-02-10 09:10:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:10:18 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-02-10 09:10:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:10:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:10:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:10:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:10:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:10:18 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) 2026-02-10 09:10:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:10:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:10:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:10:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:10:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 999981604.64Hz 2026-02-10 09:10:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 999981604.64Hz 2026-02-10 09:10:18 INFO imstat:::: Values --- 2026-02-10 09:10:18 INFO imstat:::: -- flux density [flux]: 4.99444 Jy 2026-02-10 09:10:18 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:10:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:10:18 INFO imstat:::: -- minimum value [min]: -9.70533e-05 Jy/beam 2026-02-10 09:10:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-02-10 09:10:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [158, 70, 0, 0] 2026-02-10 09:10:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981604.64Hz 2026-02-10 09:10:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:29.120, +39.58.47.882, I, 999981604.64Hz 2026-02-10 09:10:18 INFO imstat:::: -- Sum of pixel values [sum]: 610.203 Jy/beam 2026-02-10 09:10:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1527.26 Jy/beam.Jy/beam 2026-02-10 09:10:18 INFO imstat:::: Statistics --- 2026-02-10 09:10:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00931096 Jy/beam 2026-02-10 09:10:18 INFO imstat:::: -- Variance of the pixel values : 0.0232178 Jy/beam 2026-02-10 09:10:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152374 Jy/beam 2026-02-10 09:10:18 INFO imstat:::: -- Root mean square [rms]: 0.152657 Jy/beam 2026-02-10 09:10:18 INFO imstat:::: -- Median of the pixel values [median]: -1.85752e-05 Jy/beam 2026-02-10 09:10:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.83975e-05 Jy/beam 2026-02-10 09:10:18 INFO imstat:::: -- IQR [quartile]: 3.74524e-05 Jy/beam 2026-02-10 09:10:18 INFO imstat:::: -- First quartile [q1]: -3.53147e-05 Jy/beam 2026-02-10 09:10:18 INFO imstat:::: -- Third quartile [q3]: 2.13765e-06 Jy/beam 2026-02-10 09:10:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:10:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:10:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:10:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:10:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:10:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:10:18 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 2026-02-10 09:10:18 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:10:18.381822 End time: 2026-02-10 09:10:18.438230 2026-02-10 09:10:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:10:18 INFO imstat::::casa ########################################## 2026-02-10 09:10:18 INFO phaseshift::::casa ########################################## 2026-02-10 09:10:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:10:18 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' ) 2026-02-10 09:10:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:10:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:10:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:10:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:10:18 INFO MSTransformManager::parseDataSelParams field selection is 1 2026-02-10 09:10:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:10:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:10:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:10:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:10:19 INFO MSTransformManager::open Select data 2026-02-10 09:10:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:10:19 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-02-10 09:10:22 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:10:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-02-10 09:10:22 INFO phaseshift::::casa Shift phase center 2026-02-10 09:10:23 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:10:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:10:18.461618 End time: 2026-02-10 09:10:23.533806 2026-02-10 09:10:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:10:24 INFO phaseshift::::casa ########################################## 2026-02-10 09:10:24 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-02-10 09:10:24 INFO tclean::::casa ########################################## 2026-02-10 09:10:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:10:24 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:10:24 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:10:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:10:24 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-02-10 09:10:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:10:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:10:24 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:10:24 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-02-10 09:10:24 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:10:24 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.65 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:10:24 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:10:24 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:10:24 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:10:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-02-10 09:10:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027915 2026-02-10 09:10:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-02-10 09:10:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:10:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:10:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-02-10 09:10:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:10:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:10:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-02-10 09:10:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:10:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-02-10 09:10:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-02-10 09:10:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:10:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:10:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-02-10 09:10:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:10:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:10:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:10:37 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-02-10 09:10:38 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'] 2026-02-10 09:10:39 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:10:23.744307 End time: 2026-02-10 09:10:39.286469 2026-02-10 09:10:39 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:10:39 INFO tclean::::casa ########################################## 2026-02-10 09:10:39 INFO imstat::::casa ########################################## 2026-02-10 09:10:39 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:10:39 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 ) 2026-02-10 09:10:39 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:10:39 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:10:39 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:10:39 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:10:39 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:10:39 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) 2026-02-10 09:10:39 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:10:39 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:10:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:10:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:10:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-02-10 09:10:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-02-10 09:10:39 INFO imstat:::: Values --- 2026-02-10 09:10:39 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-02-10 09:10:39 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:10:39 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-02-10 09:10:39 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-02-10 09:10:39 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-02-10 09:10:39 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-02-10 09:10:39 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-02-10 09:10:39 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-02-10 09:10:39 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-02-10 09:10:39 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-02-10 09:10:39 INFO imstat:::: Statistics --- 2026-02-10 09:10:39 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-02-10 09:10:39 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-02-10 09:10:39 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-02-10 09:10:39 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-02-10 09:10:39 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-02-10 09:10:39 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-02-10 09:10:39 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-02-10 09:10:39 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-02-10 09:10:39 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-02-10 09:10:39 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:10:39 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:10:39 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:10:39 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:10:39 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:10:39 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:10:39 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 2026-02-10 09:10:39 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:10:39.291415 End time: 2026-02-10 09:10:39.338824 2026-02-10 09:10:39 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:10:39 INFO imstat::::casa ########################################## 2026-02-10 09:10:39 INFO phaseshift::::casa ########################################## 2026-02-10 09:10:39 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:10:39 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' ) 2026-02-10 09:10:39 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:10:39 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:10:39 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:10:39 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:10:39 INFO MSTransformManager::parseDataSelParams field selection is pretend 2026-02-10 09:10:39 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:10:39 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:10:39 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:10:39 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:10:39 INFO MSTransformManager::open Select data 2026-02-10 09:10:39 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:10:39 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-02-10 09:10:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:10:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-02-10 09:10:45 INFO phaseshift::::casa Shift phase center 2026-02-10 09:10:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:10:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:10:39.358991 End time: 2026-02-10 09:10:45.634302 2026-02-10 09:10:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:10:46 INFO phaseshift::::casa ########################################## 2026-02-10 09:10:46 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-02-10 09:10:46 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-02-10 09:10:46 INFO tclean::::casa ########################################## 2026-02-10 09:10:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:10:46 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 ) 2026-02-10 09:10:46 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:10:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:10:46 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-02-10 09:10:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:10:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:10:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:10:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-02-10 09:10:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:10:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.65 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:10:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:10:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:10:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:10:48 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-02-10 09:10:48 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028508 2026-02-10 09:10:48 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-02-10 09:10:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:10:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:10:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-02-10 09:10:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:10:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:10:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-02-10 09:10:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:10:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-02-10 09:10:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-02-10 09:10:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:10:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:10:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-02-10 09:10:54 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:10:54 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:10:54 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:10:55 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-02-10 09:10:55 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'] 2026-02-10 09:10:58 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:10:45.721985 End time: 2026-02-10 09:10:58.050378 2026-02-10 09:10:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:10:58 INFO tclean::::casa ########################################## 2026-02-10 09:10:58 INFO imstat::::casa ########################################## 2026-02-10 09:10:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:10:58 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 ) 2026-02-10 09:10:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:10:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:10:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:10:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:10:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:10:58 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) 2026-02-10 09:10:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:10:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:10:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:10:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:10:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-02-10 09:10:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-02-10 09:10:58 INFO imstat:::: Values --- 2026-02-10 09:10:58 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-02-10 09:10:58 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:10:58 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-02-10 09:10:58 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-02-10 09:10:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-02-10 09:10:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-02-10 09:10:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-02-10 09:10:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-02-10 09:10:58 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-02-10 09:10:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-02-10 09:10:58 INFO imstat:::: Statistics --- 2026-02-10 09:10:58 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-02-10 09:10:58 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-02-10 09:10:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-02-10 09:10:58 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-02-10 09:10:58 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-02-10 09:10:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-02-10 09:10:58 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-02-10 09:10:58 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-02-10 09:10:58 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-02-10 09:10:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:10:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:10:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:10:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:10:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:10:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:10:58 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 2026-02-10 09:10:58 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:10:58.055175 End time: 2026-02-10 09:10:58.099299 2026-02-10 09:10:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:10:58 INFO imstat::::casa ########################################## .2026-02-10 09:10:59 INFO tclean::::casa ########################################## 2026-02-10 09:10:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:10:59 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 ) 2026-02-10 09:10:59 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:10:59 INFO SynthesisImagerVi2::selectData MS : sim_data.ms | [Opened in readonly mode] 2026-02-10 09:10:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:10:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-02-10 09:10:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-02-10 09:10:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:10:59 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [9.99981e+08] at [0] with increment [1e+08] 2026-02-10 09:10:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_orig] with ftmachine : wprojectft 2026-02-10 09:10:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.65 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:10:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:10:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_orig] : hogbom 2026-02-10 09:10:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:11:00 INFO task_tclean::WPConvFunc::findConvFunction W projection using 128 planes 2026-02-10 09:11:00 INFO task_tclean::WPConvFunc::findConvFunction Using maximum possible W = 6445.78 (wavelengths) 2026-02-10 09:11:00 INFO task_tclean::WPConvFunc::findConvFunction Typical wavelength = 0.299799 (m) 2026-02-10 09:11:00 INFO task_tclean::WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.399639 wavelengths per pixel 2026-02-10 09:11:16 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 2026-02-10 09:11:16 INFO task_tclean::WPConvFunc::findConvFunction Memory used in gridding function = 14 MB from maximum 64265 MB 2026-02-10 09:11:21 INFO task_tclean::SIImageStore::calcSensitivity [im_orig] Theoretical sensitivity (Jy/bm):0.00889437 2026-02-10 09:11:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.124646 2026-02-10 09:11:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-02-10 09:11:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:11:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:11:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 4.94899 2026-02-10 09:11:28 INFO SynthesisDeconvolver::setupMask [im_orig] Initializing new mask to 1.0 for the full image 2026-02-10 09:11:28 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 % ] 2026-02-10 09:11:28 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 4.94899, over full image : 4.94899 2026-02-10 09:11:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.5971387624740601, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:11:28 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.597139, CycleNiter=20, Gain=0.3 2026-02-10 09:11:30 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=0->4.6028, peakres=4.94899->0.435227, Reached cyclethreshold. 2026-02-10 09:11:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 7 iterations. 2026-02-10 09:11:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:11:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.45574, over full image : 0.45574 2026-02-10 09:11:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 13, 'cyclethreshold': 0.05498892068862915, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:11:34 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.0549889, CycleNiter=13, Gain=0.3 2026-02-10 09:11:36 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=4.6028->5.02619, peakres=0.45574->0.0435268, Reached cyclethreshold. 2026-02-10 09:11:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 14 iterations. 2026-02-10 09:11:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:11:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0416506, over full image : 0.0416506 2026-02-10 09:11:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 6, 'cyclethreshold': 0.005025508347898722, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:11:41 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.00502551, CycleNiter=6, Gain=0.3 2026-02-10 09:11:42 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->6 [6], model=5.02619->5.04001, peakres=0.0416506->0.0226678, Reached cycleniter. 2026-02-10 09:11:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:11:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:11:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.022671, over full image : 0.022671 2026-02-10 09:11:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:11:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:11:47 INFO SDAlgorithmBase::restore [im_orig] : Restoring model image. 2026-02-10 09:11:48 INFO SIImageStore::restore Beam for chan : 0 : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-02-10 09:12:02 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'] 2026-02-10 09:12:04 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:10:58.731111 End time: 2026-02-10 09:12:03.599730 2026-02-10 09:12:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:12:04 INFO tclean::::casa ########################################## 2026-02-10 09:12:04 INFO imstat::::casa ########################################## 2026-02-10 09:12:04 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:12:04 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 ) 2026-02-10 09:12:04 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:12:04 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:12:04 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:12:04 INFO imstat::image::statistics Determining stats for image im_orig.image 2026-02-10 09:12:04 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:12:04 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) 2026-02-10 09:12:04 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:12:04 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:12:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:12:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [2047, 2047, 0, 0] 2026-02-10 09:12:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 20:11:05.220, +38.21.11.967, I, 999980841.3Hz 2026-02-10 09:12:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:47:03.322, +42.54.02.996, I, 999980841.3Hz 2026-02-10 09:12:04 INFO imstat:::: Values --- 2026-02-10 09:12:04 INFO imstat:::: -- flux density [flux]: 5.2713 Jy 2026-02-10 09:12:04 INFO imstat:::: -- number of points [npts]: 4.1943e+06 2026-02-10 09:12:04 INFO imstat:::: -- maximum value [max]: 4.97713 Jy/beam 2026-02-10 09:12:04 INFO imstat:::: -- minimum value [min]: -0.022671 Jy/beam 2026-02-10 09:12:04 INFO imstat:::: -- position of max value (pixel) [maxpos]: [1509, 773, 0, 0] 2026-02-10 09:12:04 INFO imstat:::: -- position of min value (pixel) [minpos]: [1708, 965, 0, 0] 2026-02-10 09:12:04 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.302, +40.06.02.372, I, 999980841.3Hz 2026-02-10 09:12:04 INFO imstat:::: -- position of min value (world) [minposf]: 19:51:28.525, +40.31.07.260, I, 999980841.3Hz 2026-02-10 09:12:04 INFO imstat:::: -- Sum of pixel values [sum]: 641.87 Jy/beam 2026-02-10 09:12:04 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1619.58 Jy/beam.Jy/beam 2026-02-10 09:12:04 INFO imstat:::: Statistics --- 2026-02-10 09:12:04 INFO imstat:::: -- Mean of the pixel values [mean]: 0.000153034 Jy/beam 2026-02-10 09:12:04 INFO imstat:::: -- Variance of the pixel values : 0.000386116 Jy/beam 2026-02-10 09:12:04 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0196498 Jy/beam 2026-02-10 09:12:04 INFO imstat:::: -- Root mean square [rms]: 0.0196504 Jy/beam 2026-02-10 09:12:04 INFO imstat:::: -- Median of the pixel values [median]: 4.62212e-06 Jy/beam 2026-02-10 09:12:04 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.003161 Jy/beam 2026-02-10 09:12:04 INFO imstat:::: -- IQR [quartile]: 0.00632194 Jy/beam 2026-02-10 09:12:04 INFO imstat:::: -- First quartile [q1]: -0.00315522 Jy/beam 2026-02-10 09:12:04 INFO imstat:::: -- Third quartile [q3]: 0.00316673 Jy/beam 2026-02-10 09:12:04 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:12:04 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:12:04 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:12:04 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:12:04 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:12:04 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:12:04 INFO imstat::ImageStatsCalculator::statistics 4.194304e+06 6.418700e+02 1.530337e-04 1.965042e-02 1.964982e-02 -2.267099e-02 4.977134e+00 2026-02-10 09:12:04 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:12:03.605133 End time: 2026-02-10 09:12:04.005445 2026-02-10 09:12:04 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:12:04 INFO imstat::::casa ########################################## 2026-02-10 09:12:04 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:12:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:12:04 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) 2026-02-10 09:12:04 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:12:04 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:12:04 2026****** 2026-02-10 09:12:04 INFO ImageFitter::fit+ 2026-02-10 09:12:04 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:12:04 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_orig.image 2026-02-10 09:12:04 INFO ImageFitter::fit+ --- region: 2026-02-10 09:12:04 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:12:04 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:12:04 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:12:04 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:12:04 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:12:04 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:12:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:12:04 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) 2026-02-10 09:12:04 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29832 Jy 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00459192 Jy 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85855 Jy 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00458731 Jy 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ Fit on im_orig.image component 0 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.9885 +/- 0.0032 s (0.0367 arcsec along great circle) 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.0594 +/- 0.0281 arcsec 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- ra: 1509.4535 +/- 0.0046 pixels 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- dec: 772.7181 +/- 0.0035 pixels 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.4778 +/- 0.0014 arcmin 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.2915 +/- 0.0011 arcmin 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.42 +/- 0.26 deg 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.70 arcsec 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.54 arcsec 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- position angle: -89.60 deg 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ Component is a point source 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ An upper limit on its size cannot be determined 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- Integrated: 5.0049 +/- 0.0079 Jy 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- Peak: 5.0102 +/- 0.0046 Jy/beam 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:12:04 INFO ImageFitter::_fitLoop+ --- frequency: 999.9808 MHz (29.97982 cm) 2026-02-10 09:12:04 INFO phaseshift::::casa ########################################## 2026-02-10 09:12:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:12:04 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-02-10 09:12:04 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:12:04 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:12:04 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:12:04 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:12:04 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:12:04 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:12:04 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:12:04 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:12:04 INFO MSTransformManager::open Select data 2026-02-10 09:12:04 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:12:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:12:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-02-10 09:12:08 INFO phaseshift::::casa Shift phase center 2026-02-10 09:12:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:12:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:12:04.105964 End time: 2026-02-10 09:12:10.055716 2026-02-10 09:12:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:12:10 INFO phaseshift::::casa ########################################## 2026-02-10 09:12:10 INFO tclean::::casa ########################################## 2026-02-10 09:12:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:12:10 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 ) 2026-02-10 09:12:10 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:12:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:12:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:12:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:12:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:12:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:12:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:12:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:12:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.59 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:12:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:12:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:12:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:12:12 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:12:14 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027846 2026-02-10 09:12:14 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:12:14 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:12:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:12:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:12:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:12:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:12:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:12:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:12:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:12:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:12:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:12:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:12:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:12:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:12:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:12:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:12:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:12:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:12:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:12:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:12:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:12:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:12:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:12:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:12:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:12:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:12:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:12:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:12:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:12:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:12:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:12:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:12:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:12:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:12:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:12:34 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'] 2026-02-10 09:12:36 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:12:10.249995 End time: 2026-02-10 09:12:36.384032 2026-02-10 09:12:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:12:36 INFO tclean::::casa ########################################## 2026-02-10 09:12:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:12:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:12:36 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) 2026-02-10 09:12:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:12:36 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:12:36 2026****** 2026-02-10 09:12:36 INFO ImageFitter::fit+ 2026-02-10 09:12:36 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:12:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:12:36 INFO ImageFitter::fit+ --- region: 2026-02-10 09:12:36 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:12:36 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:12:36 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:12:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:12:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:12:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:12:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:12:36 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) 2026-02-10 09:12:36 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:12:36 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:12:36 INFO imstat::::casa ########################################## 2026-02-10 09:12:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:12:36 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 ) 2026-02-10 09:12:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:12:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:12:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:12:36 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:12:36 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:12:36 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) 2026-02-10 09:12:36 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:12:36 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:12:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:12:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:12:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:12:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:12:36 INFO imstat:::: Values --- 2026-02-10 09:12:36 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:12:36 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:12:36 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:12:36 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-02-10 09:12:36 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:12:36 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:12:36 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:12:36 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:12:36 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:12:36 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:12:36 INFO imstat:::: Statistics --- 2026-02-10 09:12:36 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:12:36 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:12:36 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:12:36 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:12:36 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-02-10 09:12:36 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-02-10 09:12:36 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-02-10 09:12:36 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-02-10 09:12:36 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-02-10 09:12:36 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:12:36 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:12:36 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:12:36 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:12:36 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:12:36 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:12:36 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 2026-02-10 09:12:36 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:12:36.450246 End time: 2026-02-10 09:12:36.474573 2026-02-10 09:12:36 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:12:36 INFO imstat::::casa ########################################## 2026-02-10 09:12:36 INFO phaseshift::::casa ########################################## 2026-02-10 09:12:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:12:36 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 02:40:24.0000' ) 2026-02-10 09:12:37 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:12:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:12:37 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:12:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:12:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:12:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:12:37 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:12:37 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:12:37 INFO MSTransformManager::open Select data 2026-02-10 09:12:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:12:42 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-02-10 09:12:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 02:40:24.0000' successfully parsed 2026-02-10 09:12:42 INFO phaseshift::::casa Shift phase center 2026-02-10 09:12:44 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:12:44 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:12:36.490960 End time: 2026-02-10 09:12:43.872868 2026-02-10 09:12:44 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:12:44 INFO phaseshift::::casa ########################################## 2026-02-10 09:12:44 INFO tclean::::casa ########################################## 2026-02-10 09:12:44 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:12:44 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 ) 2026-02-10 09:12:44 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:12:44 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:12:44 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:12:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:12:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:12:44 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:12:44 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:12:44 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:12:44 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.59 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:12:44 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:12:44 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:12:44 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:12:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:12:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024235 2026-02-10 09:12:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:12:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:12:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:12:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:12:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:12:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:12:50 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:12:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:12:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:12:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:12:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:12:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:12:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:12:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:12:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:12:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:12:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:12:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:12:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:12:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:12:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:12:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:12:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:12:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:13:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:13:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:13:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:13:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:13:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:13:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:13:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:13:03 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:13:03 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:13:03 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:13:04 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:13:05 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-02-10 09:13:07 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:12:43.932863 End time: 2026-02-10 09:13:06.573394 2026-02-10 09:13:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:13:07 INFO tclean::::casa ########################################## 2026-02-10 09:13:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:13:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:13:07 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) 2026-02-10 09:13:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:13:07 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:13:07 2026****** 2026-02-10 09:13:07 INFO ImageFitter::fit+ 2026-02-10 09:13:07 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:13:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:13:07 INFO ImageFitter::fit+ --- region: 2026-02-10 09:13:07 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:13:07 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:13:07 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:13:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:13:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:13:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:13:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:13:07 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) 2026-02-10 09:13:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:13:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:13:07 INFO imstat::::casa ########################################## 2026-02-10 09:13:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:13:07 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 ) 2026-02-10 09:13:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:13:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:13:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:13:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:13:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:13:07 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) 2026-02-10 09:13:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:13:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:13:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:13:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:13:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:13:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:13:07 INFO imstat:::: Values --- 2026-02-10 09:13:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:13:07 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:13:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:13:07 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-02-10 09:13:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:13:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:13:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:13:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:13:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:13:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:13:07 INFO imstat:::: Statistics --- 2026-02-10 09:13:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:13:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:13:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:13:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:13:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-02-10 09:13:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-02-10 09:13:07 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-02-10 09:13:07 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-02-10 09:13:07 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-02-10 09:13:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:13:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:13:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:13:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:13:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:13:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:13:07 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 2026-02-10 09:13:07 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:13:06.648347 End time: 2026-02-10 09:13:06.674785 2026-02-10 09:13:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:13:07 INFO imstat::::casa ########################################## 2026-02-10 09:13:07 INFO phaseshift::::casa ########################################## 2026-02-10 09:13:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:13:07 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' ) 2026-02-10 09:13:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:13:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:13:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:13:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:13:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:13:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:13:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:13:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:13:07 INFO MSTransformManager::open Select data 2026-02-10 09:13:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:13:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:13:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.100000000deg' successfully parsed 2026-02-10 09:13:10 INFO phaseshift::::casa Shift phase center 2026-02-10 09:13:11 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:13:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:13:06.692260 End time: 2026-02-10 09:13:11.560942 2026-02-10 09:13:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:13:12 INFO phaseshift::::casa ########################################## 2026-02-10 09:13:12 INFO tclean::::casa ########################################## 2026-02-10 09:13:12 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:13:12 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 ) 2026-02-10 09:13:12 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:13:12 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:13:12 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:13:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:13:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:13:12 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:13:12 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:13:12 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:13:12 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:13:12 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:13:12 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:13:12 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:13:14 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:13:14 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027559 2026-02-10 09:13:14 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:13:14 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:13:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:13:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:13:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:13:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:13:17 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:13:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:13:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:13:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:13:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:13:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:13:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:13:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:13:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:13:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:13:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:13:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:13:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:13:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:13:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:13:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:13:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:13:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:13:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:13:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:13:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:13:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:13:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:13:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:13:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:13:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:13:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:13:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:13:30 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:13:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-02-10 09:13:35 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:13:11.620907 End time: 2026-02-10 09:13:34.840292 2026-02-10 09:13:35 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:13:35 INFO tclean::::casa ########################################## 2026-02-10 09:13:35 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:13:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:13:35 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) 2026-02-10 09:13:35 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:13:35 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:13:35 2026****** 2026-02-10 09:13:35 INFO ImageFitter::fit+ 2026-02-10 09:13:35 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:13:35 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:13:35 INFO ImageFitter::fit+ --- region: 2026-02-10 09:13:35 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:13:35 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:13:35 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:13:35 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:13:35 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:13:35 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:13:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:13:35 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) 2026-02-10 09:13:35 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:13:35 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:13:35 INFO imstat::::casa ########################################## 2026-02-10 09:13:35 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:13:35 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 ) 2026-02-10 09:13:35 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:13:35 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:13:35 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:13:35 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:13:35 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:13:35 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) 2026-02-10 09:13:35 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:13:35 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:13:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:13:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:13:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:13:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:13:35 INFO imstat:::: Values --- 2026-02-10 09:13:35 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:13:35 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:13:35 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:13:35 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-02-10 09:13:35 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:13:35 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:13:35 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:13:35 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:13:35 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:13:35 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:13:35 INFO imstat:::: Statistics --- 2026-02-10 09:13:35 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:13:35 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:13:35 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:13:35 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:13:35 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-02-10 09:13:35 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-02-10 09:13:35 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-02-10 09:13:35 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-02-10 09:13:35 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-02-10 09:13:35 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:13:35 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:13:35 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:13:35 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:13:35 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:13:35 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:13:35 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 2026-02-10 09:13:35 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:13:34.907636 End time: 2026-02-10 09:13:34.931370 2026-02-10 09:13:35 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:13:35 INFO imstat::::casa ########################################## 2026-02-10 09:13:35 INFO phaseshift::::casa ########################################## 2026-02-10 09:13:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:13:35 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 0.699877030rad' ) 2026-02-10 09:13:35 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:13:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:13:35 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:13:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:13:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:13:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:13:35 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:13:35 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:13:35 INFO MSTransformManager::open Select data 2026-02-10 09:13:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:13:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:13:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 0.699877030rad' successfully parsed 2026-02-10 09:13:44 INFO phaseshift::::casa Shift phase center 2026-02-10 09:13:47 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:13:47 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:13:34.947358 End time: 2026-02-10 09:13:47.297890 2026-02-10 09:13:47 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:13:47 INFO phaseshift::::casa ########################################## 2026-02-10 09:13:47 INFO tclean::::casa ########################################## 2026-02-10 09:13:47 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:13:47 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:13:47 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:13:47 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:13:47 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:13:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:13:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:13:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:13:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:13:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:13:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:13:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:13:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:13:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:13:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:13:50 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027844 2026-02-10 09:13:50 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:13:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:13:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:13:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:13:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:13:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:13:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:13:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:13:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:14:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:14:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:14:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:14:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:14:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:14:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:14:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:14:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:14:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:14:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:14:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:14:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:14:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:14:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:14:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:14:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:14:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:14:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:14:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:14:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:14:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:14:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:14:10 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:14:10 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:14:10 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:14:11 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:14:12 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'] 2026-02-10 09:14:13 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:13:47.351204 End time: 2026-02-10 09:14:12.863178 2026-02-10 09:14:13 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:14:13 INFO tclean::::casa ########################################## 2026-02-10 09:14:13 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:14:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:14:13 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) 2026-02-10 09:14:13 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:14:13 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:14:13 2026****** 2026-02-10 09:14:13 INFO ImageFitter::fit+ 2026-02-10 09:14:13 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:14:13 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:14:13 INFO ImageFitter::fit+ --- region: 2026-02-10 09:14:13 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:14:13 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:14:13 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:14:13 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:14:13 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:14:13 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:14:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:14:13 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) 2026-02-10 09:14:13 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:14:13 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:14:13 INFO imstat::::casa ########################################## 2026-02-10 09:14:13 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:14:13 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 ) 2026-02-10 09:14:13 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:14:13 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:14:13 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:14:13 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:14:13 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:14:13 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) 2026-02-10 09:14:13 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:14:13 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:14:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:14:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:14:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:14:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:14:13 INFO imstat:::: Values --- 2026-02-10 09:14:13 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:14:13 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:14:13 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:14:13 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-02-10 09:14:13 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:14:13 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:14:13 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:14:13 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-02-10 09:14:13 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:14:13 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:14:13 INFO imstat:::: Statistics --- 2026-02-10 09:14:13 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:14:13 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:14:13 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:14:13 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:14:13 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-02-10 09:14:13 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-02-10 09:14:13 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-02-10 09:14:13 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-02-10 09:14:13 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-02-10 09:14:13 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:14:13 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:14:13 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:14:13 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:14:13 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:14:13 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:14:13 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 2026-02-10 09:14:13 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:14:12.916341 End time: 2026-02-10 09:14:12.941453 2026-02-10 09:14:13 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:14:13 INFO imstat::::casa ########################################## 2026-02-10 09:14:13 INFO phaseshift::::casa ########################################## 2026-02-10 09:14:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:14:13 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 19:53:50.0000 40d06m00' ) 2026-02-10 09:14:13 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:14:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:14:13 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:14:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:14:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:14:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:14:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:14:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:14:13 INFO MSTransformManager::open Select data 2026-02-10 09:14:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:14:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:14:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40d06m00' successfully parsed 2026-02-10 09:14:16 INFO phaseshift::::casa Shift phase center 2026-02-10 09:14:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:14:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:14:12.953604 End time: 2026-02-10 09:14:16.609656 2026-02-10 09:14:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:14:17 INFO phaseshift::::casa ########################################## 2026-02-10 09:14:17 INFO tclean::::casa ########################################## 2026-02-10 09:14:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:14:17 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 ) 2026-02-10 09:14:17 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:14:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:14:17 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:14:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:14:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:14:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:14:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:14:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:14:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:14:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:14:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:14:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:14:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:14:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026044 2026-02-10 09:14:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:14:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:14:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:14:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:14:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:14:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:14:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:14:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:14:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:14:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:14:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:14:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:14:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:14:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:14:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:14:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:14:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:14:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:14:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:14:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:14:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:14:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:14:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:14:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:14:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:14:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:14:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:14:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:14:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:14:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:14:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:14:25 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:14:25 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:14:25 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:14:26 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:14:27 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'] 2026-02-10 09:14:28 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:14:16.665918 End time: 2026-02-10 09:14:27.568574 2026-02-10 09:14:28 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:14:28 INFO tclean::::casa ########################################## 2026-02-10 09:14:28 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:14:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:14:28 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) 2026-02-10 09:14:28 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:14:28 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:14:28 2026****** 2026-02-10 09:14:28 INFO ImageFitter::fit+ 2026-02-10 09:14:28 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:14:28 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:14:28 INFO ImageFitter::fit+ --- region: 2026-02-10 09:14:28 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:14:28 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:14:28 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:14:28 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:14:28 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:14:28 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:14:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:14:28 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) 2026-02-10 09:14:28 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:14:28 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:14:28 INFO imstat::::casa ########################################## 2026-02-10 09:14:28 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:14:28 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 ) 2026-02-10 09:14:28 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:14:28 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:14:28 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:14:28 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:14:28 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:14:28 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) 2026-02-10 09:14:28 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:14:28 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:14:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:14:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:14:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:14:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:14:28 INFO imstat:::: Values --- 2026-02-10 09:14:28 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:14:28 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:14:28 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:14:28 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-02-10 09:14:28 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:14:28 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:14:28 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:14:28 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:14:28 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:14:28 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:14:28 INFO imstat:::: Statistics --- 2026-02-10 09:14:28 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:14:28 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:14:28 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:14:28 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:14:28 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-02-10 09:14:28 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-02-10 09:14:28 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-02-10 09:14:28 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-02-10 09:14:28 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-02-10 09:14:28 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:14:28 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:14:28 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:14:28 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:14:28 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:14:28 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:14:28 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 2026-02-10 09:14:28 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:14:27.651783 End time: 2026-02-10 09:14:27.688201 2026-02-10 09:14:28 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:14:28 INFO imstat::::casa ########################################## 2026-02-10 09:14:28 INFO phaseshift::::casa ########################################## 2026-02-10 09:14:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:14:28 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 19:53:50.0000 02:40:24.0000' ) 2026-02-10 09:14:28 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:14:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:14:28 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:14:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:14:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:14:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:14:28 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:14:28 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:14:28 INFO MSTransformManager::open Select data 2026-02-10 09:14:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:14:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-02-10 09:14:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 02:40:24.0000' successfully parsed 2026-02-10 09:14:32 INFO phaseshift::::casa Shift phase center 2026-02-10 09:14:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:14:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:14:27.705508 End time: 2026-02-10 09:14:32.147502 2026-02-10 09:14:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:14:32 INFO phaseshift::::casa ########################################## 2026-02-10 09:14:32 INFO tclean::::casa ########################################## 2026-02-10 09:14:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:14:32 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 ) 2026-02-10 09:14:32 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:14:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:14:32 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:14:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:14:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:14:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:14:32 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:14:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:14:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:14:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:14:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:14:32 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:14:33 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:14:33 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.012264 2026-02-10 09:14:33 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:14:33 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:14:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:14:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:14:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:14:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:14:35 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:14:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:14:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:14:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:14:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:14:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:14:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:14:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:14:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:14:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:14:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:14:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:14:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:14:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:14:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:14:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:14:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:14:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:14:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:14:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:14:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:14:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:14:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:14:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:14:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:14:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:14:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:14:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:14:46 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:14:47 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'] 2026-02-10 09:14:49 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:14:32.177500 End time: 2026-02-10 09:14:48.648446 2026-02-10 09:14:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:14:49 INFO tclean::::casa ########################################## 2026-02-10 09:14:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:14:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:14:49 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) 2026-02-10 09:14:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:14:49 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:14:49 2026****** 2026-02-10 09:14:49 INFO ImageFitter::fit+ 2026-02-10 09:14:49 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:14:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:14:49 INFO ImageFitter::fit+ --- region: 2026-02-10 09:14:49 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:14:49 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:14:49 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:14:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:14:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:14:49 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:14:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:14:49 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) 2026-02-10 09:14:49 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:14:49 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:14:49 INFO imstat::::casa ########################################## 2026-02-10 09:14:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:14:49 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 ) 2026-02-10 09:14:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:14:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:14:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:14:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:14:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:14:49 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) 2026-02-10 09:14:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:14:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:14:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:14:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:14:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:14:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:14:49 INFO imstat:::: Values --- 2026-02-10 09:14:49 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:14:49 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:14:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:14:49 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-02-10 09:14:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:14:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:14:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:14:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:14:49 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:14:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:14:49 INFO imstat:::: Statistics --- 2026-02-10 09:14:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:14:49 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:14:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:14:49 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:14:49 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-02-10 09:14:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-02-10 09:14:49 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-02-10 09:14:49 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-02-10 09:14:49 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-02-10 09:14:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:14:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:14:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:14:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:14:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:14:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:14:49 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 2026-02-10 09:14:49 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:14:48.728237 End time: 2026-02-10 09:14:48.753915 2026-02-10 09:14:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:14:49 INFO imstat::::casa ########################################## 2026-02-10 09:14:49 INFO phaseshift::::casa ########################################## 2026-02-10 09:14:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:14:49 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40.100000000deg' ) 2026-02-10 09:14:49 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:14:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:14:49 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:14:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:14:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:14:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:14:49 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:14:49 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:14:49 INFO MSTransformManager::open Select data 2026-02-10 09:14:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:14:52 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:14:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40.100000000deg' successfully parsed 2026-02-10 09:14:52 INFO phaseshift::::casa Shift phase center 2026-02-10 09:14:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:14:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:14:48.771155 End time: 2026-02-10 09:14:54.422154 2026-02-10 09:14:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:14:54 INFO phaseshift::::casa ########################################## 2026-02-10 09:14:54 INFO tclean::::casa ########################################## 2026-02-10 09:14:54 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:14:54 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 ) 2026-02-10 09:14:54 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:14:54 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:14:55 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:14:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:14:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:14:55 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:14:55 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:14:55 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:14:55 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:14:55 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:14:55 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:14:55 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:14:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:14:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025045 2026-02-10 09:14:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:14:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:14:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:15:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:15:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:15:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:15:01 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:15:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:15:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:15:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:15:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:15:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:15:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:15:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:15:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:15:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:15:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:15:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:15:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:15:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:15:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:15:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:15:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:15:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:15:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:15:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:15:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:15:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:15:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:15:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:15:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:15:10 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:15:10 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:15:10 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:15:12 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:15:12 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'] 2026-02-10 09:15:14 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:14:54.479047 End time: 2026-02-10 09:15:13.641306 2026-02-10 09:15:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:15:14 INFO tclean::::casa ########################################## 2026-02-10 09:15:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:15:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:15:14 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:15:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:15:14 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:15:14 2026****** 2026-02-10 09:15:14 INFO ImageFitter::fit+ 2026-02-10 09:15:14 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:15:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:15:14 INFO ImageFitter::fit+ --- region: 2026-02-10 09:15:14 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:15:14 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:15:14 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:15:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:15:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:15:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:15:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:15:14 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:15:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:15:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:15:14 INFO imstat::::casa ########################################## 2026-02-10 09:15:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:15:14 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-02-10 09:15:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:15:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:15:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:15:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:15:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:15:14 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:15:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:15:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:15:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:15:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:15:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:15:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:15:14 INFO imstat:::: Values --- 2026-02-10 09:15:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:15:14 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:15:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:15:14 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-02-10 09:15:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:15:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:15:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:15:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:15:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:15:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:15:14 INFO imstat:::: Statistics --- 2026-02-10 09:15:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:15:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:15:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:15:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:15:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-02-10 09:15:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-02-10 09:15:14 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-02-10 09:15:14 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-02-10 09:15:14 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-02-10 09:15:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:15:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:15:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:15:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:15:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:15:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:15:14 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 2026-02-10 09:15:14 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:15:13.717603 End time: 2026-02-10 09:15:13.743351 2026-02-10 09:15:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:15:14 INFO imstat::::casa ########################################## 2026-02-10 09:15:14 INFO phaseshift::::casa ########################################## 2026-02-10 09:15:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:15:14 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 0.699877030rad' ) 2026-02-10 09:15:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:15:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:15:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:15:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:15:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:15:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:15:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:15:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:15:14 INFO MSTransformManager::open Select data 2026-02-10 09:15:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:15:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:15:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 0.699877030rad' successfully parsed 2026-02-10 09:15:18 INFO phaseshift::::casa Shift phase center 2026-02-10 09:15:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:15:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:15:13.760776 End time: 2026-02-10 09:15:18.739820 2026-02-10 09:15:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:15:19 INFO phaseshift::::casa ########################################## 2026-02-10 09:15:19 INFO tclean::::casa ########################################## 2026-02-10 09:15:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:15:19 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 ) 2026-02-10 09:15:19 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:15:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:15:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:15:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:15:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:15:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:15:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:15:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:15:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:15:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:15:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:15:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:15:20 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:15:20 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028407 2026-02-10 09:15:20 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:15:20 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:15:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:15:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:15:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:15:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:15:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:15:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:15:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:15:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:15:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:15:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:15:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:15:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:15:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:15:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:15:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:15:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:15:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:15:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:15:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:15:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:15:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:15:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:15:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:15:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:15:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:15:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:15:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:15:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:15:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:15:32 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:15:32 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:15:32 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:15:33 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:15:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-02-10 09:15:35 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:15:18.792664 End time: 2026-02-10 09:15:35.300858 2026-02-10 09:15:35 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:15:35 INFO tclean::::casa ########################################## 2026-02-10 09:15:35 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:15:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:15:35 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) 2026-02-10 09:15:35 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:15:35 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:15:35 2026****** 2026-02-10 09:15:35 INFO ImageFitter::fit+ 2026-02-10 09:15:35 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:15:35 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:15:35 INFO ImageFitter::fit+ --- region: 2026-02-10 09:15:35 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:15:35 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:15:35 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:15:35 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:15:35 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:15:35 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:15:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:15:35 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) 2026-02-10 09:15:35 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:15:35 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:15:35 INFO imstat::::casa ########################################## 2026-02-10 09:15:35 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:15:35 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 ) 2026-02-10 09:15:35 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:15:35 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:15:35 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:15:35 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:15:35 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:15:35 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) 2026-02-10 09:15:35 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:15:35 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:15:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:15:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:15:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:15:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:15:35 INFO imstat:::: Values --- 2026-02-10 09:15:35 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:15:35 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:15:35 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:15:35 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-02-10 09:15:35 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:15:35 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:15:35 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:15:35 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-02-10 09:15:35 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:15:35 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:15:35 INFO imstat:::: Statistics --- 2026-02-10 09:15:35 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:15:35 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:15:35 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:15:35 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:15:35 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-02-10 09:15:35 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-02-10 09:15:35 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-02-10 09:15:35 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-02-10 09:15:35 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-02-10 09:15:35 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:15:35 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:15:35 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:15:35 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:15:35 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:15:35 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:15:35 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 2026-02-10 09:15:35 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:15:35.358356 End time: 2026-02-10 09:15:35.387843 2026-02-10 09:15:35 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:15:35 INFO imstat::::casa ########################################## 2026-02-10 09:15:35 INFO phaseshift::::casa ########################################## 2026-02-10 09:15:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:15:35 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40d06m00' ) 2026-02-10 09:15:35 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:15:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:15:35 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:15:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:15:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:15:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:15:35 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:15:35 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:15:35 INFO MSTransformManager::open Select data 2026-02-10 09:15:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:15:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:15:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40d06m00' successfully parsed 2026-02-10 09:15:39 INFO phaseshift::::casa Shift phase center 2026-02-10 09:15:41 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:15:41 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:15:35.401754 End time: 2026-02-10 09:15:40.703745 2026-02-10 09:15:41 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:15:41 INFO phaseshift::::casa ########################################## 2026-02-10 09:15:41 INFO tclean::::casa ########################################## 2026-02-10 09:15:41 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:15:41 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 ) 2026-02-10 09:15:41 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:15:41 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:15:41 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:15:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:15:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:15:41 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:15:41 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:15:41 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:15:41 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:15:41 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:15:41 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:15:41 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:15:43 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:15:43 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029128 2026-02-10 09:15:43 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:15:43 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:15:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:15:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:15:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:15:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:15:46 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:15:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:15:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:15:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:15:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:15:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:15:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:15:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:15:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:15:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:15:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:15:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:15:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:15:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:15:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:15:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:15:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:15:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:15:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:15:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:15:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:15:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:15:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:15:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:15:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:15:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:15:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:15:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:15:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:15:57 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'] 2026-02-10 09:15:58 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:15:40.757171 End time: 2026-02-10 09:15:58.091468 2026-02-10 09:15:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:15:58 INFO tclean::::casa ########################################## 2026-02-10 09:15:58 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:15:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:15:58 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) 2026-02-10 09:15:58 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:15:58 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:15:58 2026****** 2026-02-10 09:15:58 INFO ImageFitter::fit+ 2026-02-10 09:15:58 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:15:58 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:15:58 INFO ImageFitter::fit+ --- region: 2026-02-10 09:15:58 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:15:58 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:15:58 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:15:58 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:15:58 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:15:58 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:15:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:15:58 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) 2026-02-10 09:15:58 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:15:58 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:15:58 INFO imstat::::casa ########################################## 2026-02-10 09:15:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:15:58 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 ) 2026-02-10 09:15:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:15:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:15:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:15:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:15:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:15:58 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:15:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:15:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:15:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:15:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:15:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:15:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:15:58 INFO imstat:::: Values --- 2026-02-10 09:15:58 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:15:58 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:15:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:15:58 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-02-10 09:15:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:15:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:15:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:15:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:15:58 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:15:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:15:58 INFO imstat:::: Statistics --- 2026-02-10 09:15:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:15:58 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:15:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:15:58 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:15:58 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-02-10 09:15:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-02-10 09:15:58 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-02-10 09:15:58 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-02-10 09:15:58 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-02-10 09:15:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:15:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:15:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:15:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:15:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:15:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:15:58 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 2026-02-10 09:15:58 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:15:58.171166 End time: 2026-02-10 09:15:58.202066 2026-02-10 09:15:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:15:58 INFO imstat::::casa ########################################## 2026-02-10 09:15:58 INFO phaseshift::::casa ########################################## 2026-02-10 09:15:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:15:58 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 02:40:24.0000' ) 2026-02-10 09:15:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:15:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:15:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:15:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:15:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:15:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:15:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:15:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:15:58 INFO MSTransformManager::open Select data 2026-02-10 09:15:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:16:01 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 ".". 2026-02-10 09:16:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 02:40:24.0000' successfully parsed 2026-02-10 09:16:01 INFO phaseshift::::casa Shift phase center 2026-02-10 09:16:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:16:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:15:58.221336 End time: 2026-02-10 09:16:02.721384 2026-02-10 09:16:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:16:03 INFO phaseshift::::casa ########################################## 2026-02-10 09:16:03 INFO tclean::::casa ########################################## 2026-02-10 09:16:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:16:03 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 ) 2026-02-10 09:16:03 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:16:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:16:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:16:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:16:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:16:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:16:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:16:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:16:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:16:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:16:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:16:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:16:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:16:05 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024476 2026-02-10 09:16:05 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:16:05 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:16:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:16:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:16:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:16:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:16:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:16:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:16:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:16:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:16:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:16:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:16:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:16:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:16:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:16:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:16:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:16:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:16:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:16:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:16:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:16:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:16:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:16:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:16:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:16:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:16:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:16:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:16:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:16:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:16:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:16:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:16:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:16:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:16:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:16:18 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'] 2026-02-10 09:16:22 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:16:02.782028 End time: 2026-02-10 09:16:21.868994 2026-02-10 09:16:22 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:16:22 INFO tclean::::casa ########################################## 2026-02-10 09:16:22 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:16:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:16:22 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:16:22 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:16:22 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:16:22 2026****** 2026-02-10 09:16:22 INFO ImageFitter::fit+ 2026-02-10 09:16:22 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:16:22 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:16:22 INFO ImageFitter::fit+ --- region: 2026-02-10 09:16:22 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:16:22 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:16:22 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:16:22 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:16:22 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:16:22 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:16:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:16:22 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:16:22 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:16:22 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:16:22 INFO imstat::::casa ########################################## 2026-02-10 09:16:22 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:16:22 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-02-10 09:16:22 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:16:22 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:16:22 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:16:22 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:16:22 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:16:22 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:16:22 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:16:22 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:16:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:16:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:16:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:16:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:16:22 INFO imstat:::: Values --- 2026-02-10 09:16:22 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:16:22 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:16:22 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:16:22 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-02-10 09:16:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:16:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:16:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:16:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:16:22 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:16:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:16:22 INFO imstat:::: Statistics --- 2026-02-10 09:16:22 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:16:22 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:16:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:16:22 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:16:22 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-02-10 09:16:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-02-10 09:16:22 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-02-10 09:16:22 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-02-10 09:16:22 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-02-10 09:16:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:16:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:16:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:16:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:16:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:16:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:16:22 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777580e-05 4.999996e+00 2026-02-10 09:16:22 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:16:21.952040 End time: 2026-02-10 09:16:21.980601 2026-02-10 09:16:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:16:22 INFO imstat::::casa ########################################## 2026-02-10 09:16:22 INFO phaseshift::::casa ########################################## 2026-02-10 09:16:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:16:22 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40.100000000deg' ) 2026-02-10 09:16:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:16:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:16:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:16:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:16:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:16:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:16:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:16:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:16:22 INFO MSTransformManager::open Select data 2026-02-10 09:16:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:16:28 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:16:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40.100000000deg' successfully parsed 2026-02-10 09:16:28 INFO phaseshift::::casa Shift phase center 2026-02-10 09:16:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:16:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:16:21.998642 End time: 2026-02-10 09:16:29.679121 2026-02-10 09:16:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:16:30 INFO phaseshift::::casa ########################################## 2026-02-10 09:16:30 INFO tclean::::casa ########################################## 2026-02-10 09:16:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:16:30 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 ) 2026-02-10 09:16:30 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:16:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:16:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:16:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:16:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:16:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:16:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:16:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:16:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:16:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:16:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:16:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:16:31 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:16:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023756 2026-02-10 09:16:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:16:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:16:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:16:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:16:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:16:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:16:35 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:16:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:16:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:16:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:16:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:16:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:16:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:16:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:16:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:16:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:16:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:16:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:16:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:16:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:16:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:16:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:16:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:16:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:16:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:16:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:16:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:16:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:16:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:16:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:16:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:16:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:16:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:16:49 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:16:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:16:51 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'] 2026-02-10 09:16:53 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:16:29.739206 End time: 2026-02-10 09:16:53.189861 2026-02-10 09:16:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:16:53 INFO tclean::::casa ########################################## 2026-02-10 09:16:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:16:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:16:53 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) 2026-02-10 09:16:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:16:53 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:16:53 2026****** 2026-02-10 09:16:53 INFO ImageFitter::fit+ 2026-02-10 09:16:53 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:16:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:16:53 INFO ImageFitter::fit+ --- region: 2026-02-10 09:16:53 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:16:53 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:16:53 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:16:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:16:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:16:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:16:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:16:53 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) 2026-02-10 09:16:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:16:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:16:53 INFO imstat::::casa ########################################## 2026-02-10 09:16:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:16:53 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 ) 2026-02-10 09:16:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:16:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:16:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:16:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:16:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:16:53 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) 2026-02-10 09:16:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:16:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:16:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:16:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:16:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:16:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:16:53 INFO imstat:::: Values --- 2026-02-10 09:16:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:16:53 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:16:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:16:53 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-02-10 09:16:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:16:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:16:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:16:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:16:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:16:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:16:53 INFO imstat:::: Statistics --- 2026-02-10 09:16:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:16:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:16:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:16:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:16:53 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-02-10 09:16:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-02-10 09:16:53 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-02-10 09:16:53 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-02-10 09:16:53 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-02-10 09:16:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:16:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:16:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:16:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:16:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:16:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:16:53 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 2026-02-10 09:16:53 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:16:53.264826 End time: 2026-02-10 09:16:53.290462 2026-02-10 09:16:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:16:53 INFO imstat::::casa ########################################## 2026-02-10 09:16:53 INFO phaseshift::::casa ########################################## 2026-02-10 09:16:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:16:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 0.699877030rad' ) 2026-02-10 09:16:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:16:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:16:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:16:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:16:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:16:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:16:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:16:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:16:53 INFO MSTransformManager::open Select data 2026-02-10 09:16:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:16:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:16:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 0.699877030rad' successfully parsed 2026-02-10 09:16:57 INFO phaseshift::::casa Shift phase center 2026-02-10 09:16:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:16:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:16:53.307606 End time: 2026-02-10 09:16:58.338116 2026-02-10 09:16:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:16:58 INFO phaseshift::::casa ########################################## 2026-02-10 09:16:58 INFO tclean::::casa ########################################## 2026-02-10 09:16:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:16:58 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 ) 2026-02-10 09:16:58 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:16:58 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:16:58 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:16:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:16:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:16:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:16:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:16:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:16:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:16:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:16:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:16:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:17:00 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:17:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025317 2026-02-10 09:17:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:17:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:17:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:17:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:17:03 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:17:03 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:17:03 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:17:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:17:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:17:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:17:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:17:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:17:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:17:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:17:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:17:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:17:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:17:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:17:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:17:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:17:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:17:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:17:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:17:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:17:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:17:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:17:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:17:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:17:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:17:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:17:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:17:10 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:17:10 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:17:10 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:17:11 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:17:11 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'] 2026-02-10 09:17:12 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:16:58.396524 End time: 2026-02-10 09:17:12.360994 2026-02-10 09:17:12 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:17:12 INFO tclean::::casa ########################################## 2026-02-10 09:17:12 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:17:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:17:12 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:17:12 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:17:12 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:17:12 2026****** 2026-02-10 09:17:12 INFO ImageFitter::fit+ 2026-02-10 09:17:12 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:17:12 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:17:12 INFO ImageFitter::fit+ --- region: 2026-02-10 09:17:12 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:17:12 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:17:12 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:17:12 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:17:12 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:17:12 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:17:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:17:12 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:17:12 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:17:12 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:17:12 INFO imstat::::casa ########################################## 2026-02-10 09:17:12 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:17:12 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-02-10 09:17:12 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:17:12 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:17:12 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:17:12 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:17:12 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:17:12 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:17:12 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:17:12 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:17:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:17:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:17:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:17:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:17:12 INFO imstat:::: Values --- 2026-02-10 09:17:12 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:17:12 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:17:12 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:17:12 INFO imstat:::: -- minimum value [min]: -7.77738e-05 Jy/beam 2026-02-10 09:17:12 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:17:12 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:17:12 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:17:12 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:17:12 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:17:12 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:17:12 INFO imstat:::: Statistics --- 2026-02-10 09:17:12 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:17:12 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:17:12 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:17:12 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:17:12 INFO imstat:::: -- Median of the pixel values [median]: -1.86662e-05 Jy/beam 2026-02-10 09:17:12 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73577e-05 Jy/beam 2026-02-10 09:17:12 INFO imstat:::: -- IQR [quartile]: 3.56242e-05 Jy/beam 2026-02-10 09:17:12 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-02-10 09:17:12 INFO imstat:::: -- Third quartile [q3]: 1.11673e-06 Jy/beam 2026-02-10 09:17:12 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:17:12 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:17:12 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:17:12 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:17:12 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:17:12 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:17:12 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 2026-02-10 09:17:12 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:17:12.429397 End time: 2026-02-10 09:17:12.454504 2026-02-10 09:17:12 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:17:12 INFO imstat::::casa ########################################## 2026-02-10 09:17:12 INFO phaseshift::::casa ########################################## 2026-02-10 09:17:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:17:12 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40d06m00' ) 2026-02-10 09:17:12 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:17:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:17:12 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:17:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:17:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:17:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:17:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:17:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:17:13 INFO MSTransformManager::open Select data 2026-02-10 09:17:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:17:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:17:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40d06m00' successfully parsed 2026-02-10 09:17:17 INFO phaseshift::::casa Shift phase center 2026-02-10 09:17:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:17:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:17:12.471197 End time: 2026-02-10 09:17:17.684426 2026-02-10 09:17:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:17:18 INFO phaseshift::::casa ########################################## 2026-02-10 09:17:18 INFO tclean::::casa ########################################## 2026-02-10 09:17:18 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:17:18 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:17:18 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:17:18 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:17:18 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:17:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:17:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:17:18 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:17:18 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:17:18 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:17:18 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:17:18 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:17:18 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:17:18 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:17:20 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:17:20 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017749 2026-02-10 09:17:20 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:17:20 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:17:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:17:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:17:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:17:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:17:22 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:17:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:17:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:17:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:17:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:17:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:17:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:17:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:17:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:17:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:17:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:17:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:17:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:17:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:17:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:17:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:17:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:17:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:17:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:17:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:17:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:17:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:17:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:17:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:17:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:17:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:17:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:17:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:17:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:17:36 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'] 2026-02-10 09:17:38 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:17:17.723590 End time: 2026-02-10 09:17:38.272560 2026-02-10 09:17:38 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:17:38 INFO tclean::::casa ########################################## 2026-02-10 09:17:38 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:17:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:17:38 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:17:38 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:17:38 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:17:38 2026****** 2026-02-10 09:17:38 INFO ImageFitter::fit+ 2026-02-10 09:17:38 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:17:38 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:17:38 INFO ImageFitter::fit+ --- region: 2026-02-10 09:17:38 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:17:38 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:17:38 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:17:38 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:17:38 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:17:38 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:17:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:17:38 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:17:38 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:17:38 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:17:38 INFO imstat::::casa ########################################## 2026-02-10 09:17:38 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:17:38 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-02-10 09:17:38 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:17:38 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:17:38 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:17:38 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:17:38 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:17:38 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:17:38 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:17:38 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:17:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:17:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:17:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:17:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:17:38 INFO imstat:::: Values --- 2026-02-10 09:17:38 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:17:38 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:17:38 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:17:38 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-02-10 09:17:38 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:17:38 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:17:38 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:17:38 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-02-10 09:17:38 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:17:38 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:17:38 INFO imstat:::: Statistics --- 2026-02-10 09:17:38 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:17:38 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:17:38 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:17:38 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:17:38 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-02-10 09:17:38 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-02-10 09:17:38 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-02-10 09:17:38 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-02-10 09:17:38 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-02-10 09:17:38 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:17:38 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:17:38 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:17:38 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:17:38 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:17:38 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:17:38 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 2026-02-10 09:17:38 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:17:38.352430 End time: 2026-02-10 09:17:38.379116 2026-02-10 09:17:38 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:17:38 INFO imstat::::casa ########################################## 2026-02-10 09:17:38 INFO phaseshift::::casa ########################################## 2026-02-10 09:17:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:17:38 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 02:40:24.0000' ) 2026-02-10 09:17:38 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:17:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:17:38 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:17:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:17:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:17:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:17:38 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:17:38 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:17:38 INFO MSTransformManager::open Select data 2026-02-10 09:17:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:17:43 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-02-10 09:17:43 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 02:40:24.0000' successfully parsed 2026-02-10 09:17:43 INFO phaseshift::::casa Shift phase center 2026-02-10 09:17:44 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:17:44 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:17:38.396809 End time: 2026-02-10 09:17:43.659208 2026-02-10 09:17:44 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:17:44 INFO phaseshift::::casa ########################################## 2026-02-10 09:17:44 INFO tclean::::casa ########################################## 2026-02-10 09:17:44 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:17:44 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 ) 2026-02-10 09:17:44 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:17:44 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:17:44 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:17:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:17:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:17:44 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:17:44 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:17:44 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:17:44 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:17:44 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:17:44 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:17:44 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:17:45 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:17:45 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024802 2026-02-10 09:17:45 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:17:45 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:17:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:17:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:17:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:17:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:17:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:17:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:17:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:17:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:17:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:17:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:17:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:17:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:17:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:17:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:17:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:17:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:17:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:17:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:17:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:17:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:17:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:17:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:17:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:17:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:17:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:17:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:17:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:17:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:17:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:17:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:17:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:17:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:17:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:17:57 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'] 2026-02-10 09:18:01 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:17:43.719744 End time: 2026-02-10 09:18:00.659344 2026-02-10 09:18:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:18:01 INFO tclean::::casa ########################################## 2026-02-10 09:18:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:18:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:18:01 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:18:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:18:01 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:18:01 2026****** 2026-02-10 09:18:01 INFO ImageFitter::fit+ 2026-02-10 09:18:01 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:18:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:18:01 INFO ImageFitter::fit+ --- region: 2026-02-10 09:18:01 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:18:01 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:18:01 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:18:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:18:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:18:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:18:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:18:01 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:18:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:18:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:18:01 INFO imstat::::casa ########################################## 2026-02-10 09:18:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:18:01 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-02-10 09:18:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:18:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:18:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:18:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:18:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:18:01 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:18:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:18:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:18:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:18:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:18:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:18:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:18:01 INFO imstat:::: Values --- 2026-02-10 09:18:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:18:01 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:18:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:18:01 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-02-10 09:18:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:18:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:18:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:18:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-02-10 09:18:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:18:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:18:01 INFO imstat:::: Statistics --- 2026-02-10 09:18:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:18:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:18:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:18:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:18:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-02-10 09:18:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-02-10 09:18:01 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-02-10 09:18:01 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-02-10 09:18:01 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-02-10 09:18:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:18:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:18:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:18:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:18:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:18:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:18:01 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 2026-02-10 09:18:01 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:18:00.744920 End time: 2026-02-10 09:18:00.785181 2026-02-10 09:18:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:18:01 INFO imstat::::casa ########################################## 2026-02-10 09:18:01 INFO phaseshift::::casa ########################################## 2026-02-10 09:18:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:18:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40.100000000deg' ) 2026-02-10 09:18:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:18:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:18:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:18:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:18:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:18:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:18:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:18:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:18:01 INFO MSTransformManager::open Select data 2026-02-10 09:18:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:18:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:18:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40.100000000deg' successfully parsed 2026-02-10 09:18:06 INFO phaseshift::::casa Shift phase center 2026-02-10 09:18:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:18:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:18:00.803692 End time: 2026-02-10 09:18:07.289351 2026-02-10 09:18:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:18:07 INFO phaseshift::::casa ########################################## 2026-02-10 09:18:07 INFO tclean::::casa ########################################## 2026-02-10 09:18:07 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:18:07 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:18:07 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:18:07 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:18:07 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:18:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:18:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:18:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:18:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:18:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:18:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:18:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:18:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:18:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:18:09 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:18:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025719 2026-02-10 09:18:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:18:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:18:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:18:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:18:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:18:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:18:12 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:18:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:18:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:18:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:18:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:18:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:18:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:18:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:18:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:18:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:18:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:18:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:18:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:18:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:18:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:18:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:18:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:18:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:18:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:18:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:18:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:18:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:18:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:18:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:18:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:18:19 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:18:19 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:18:19 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:18:20 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:18:20 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'] 2026-02-10 09:18:22 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:18:07.349398 End time: 2026-02-10 09:18:21.873094 2026-02-10 09:18:22 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:18:22 INFO tclean::::casa ########################################## 2026-02-10 09:18:22 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:18:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:18:22 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:18:22 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:18:22 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:18:22 2026****** 2026-02-10 09:18:22 INFO ImageFitter::fit+ 2026-02-10 09:18:22 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:18:22 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:18:22 INFO ImageFitter::fit+ --- region: 2026-02-10 09:18:22 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:18:22 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:18:22 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:18:22 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:18:22 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:18:22 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:18:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:18:22 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:18:22 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:18:22 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:18:22 INFO imstat::::casa ########################################## 2026-02-10 09:18:22 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:18:22 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-02-10 09:18:22 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:18:22 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:18:22 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:18:22 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:18:22 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:18:22 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:18:22 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:18:22 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:18:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:18:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:18:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:18:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:18:22 INFO imstat:::: Values --- 2026-02-10 09:18:22 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:18:22 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:18:22 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:18:22 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-02-10 09:18:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:18:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:18:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:18:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-02-10 09:18:22 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:18:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:18:22 INFO imstat:::: Statistics --- 2026-02-10 09:18:22 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:18:22 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:18:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:18:22 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:18:22 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-02-10 09:18:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-02-10 09:18:22 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-02-10 09:18:22 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-02-10 09:18:22 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-02-10 09:18:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:18:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:18:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:18:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:18:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:18:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:18:22 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 2026-02-10 09:18:22 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:18:21.950162 End time: 2026-02-10 09:18:21.976586 2026-02-10 09:18:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:18:22 INFO imstat::::casa ########################################## 2026-02-10 09:18:22 INFO phaseshift::::casa ########################################## 2026-02-10 09:18:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:18:22 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 0.699877030rad' ) 2026-02-10 09:18:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:18:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:18:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:18:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:18:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:18:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:18:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:18:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:18:22 INFO MSTransformManager::open Select data 2026-02-10 09:18:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:18:28 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:18:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 0.699877030rad' successfully parsed 2026-02-10 09:18:28 INFO phaseshift::::casa Shift phase center 2026-02-10 09:18:29 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:18:29 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:18:21.994205 End time: 2026-02-10 09:18:29.455830 2026-02-10 09:18:29 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:18:29 INFO phaseshift::::casa ########################################## 2026-02-10 09:18:30 INFO tclean::::casa ########################################## 2026-02-10 09:18:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:18:30 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 ) 2026-02-10 09:18:30 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:18:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:18:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:18:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:18:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:18:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:18:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:18:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:18:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:18:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:18:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:18:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:18:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:18:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027358 2026-02-10 09:18:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:18:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:18:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:18:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:18:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:18:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:18:35 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:18:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:18:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:18:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:18:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:18:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:18:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:18:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:18:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:18:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:18:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:18:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:18:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:18:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:18:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:18:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:18:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:18:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:18:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:18:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:18:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:18:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:18:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:18:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:18:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:18:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:18:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:18:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:18:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:18:43 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'] 2026-02-10 09:18:44 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:18:29.520676 End time: 2026-02-10 09:18:44.360706 2026-02-10 09:18:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:18:44 INFO tclean::::casa ########################################## 2026-02-10 09:18:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:18:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:18:44 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) 2026-02-10 09:18:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:18:44 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:18:44 2026****** 2026-02-10 09:18:44 INFO ImageFitter::fit+ 2026-02-10 09:18:44 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:18:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:18:44 INFO ImageFitter::fit+ --- region: 2026-02-10 09:18:44 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:18:44 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:18:44 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:18:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:18:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:18:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:18:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:18:44 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) 2026-02-10 09:18:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:18:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:18:44 INFO imstat::::casa ########################################## 2026-02-10 09:18:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:18:44 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 ) 2026-02-10 09:18:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:18:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:18:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:18:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:18:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:18:44 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) 2026-02-10 09:18:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:18:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:18:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:18:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:18:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:18:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:18:44 INFO imstat:::: Values --- 2026-02-10 09:18:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:18:44 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:18:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:18:44 INFO imstat:::: -- minimum value [min]: -7.77793e-05 Jy/beam 2026-02-10 09:18:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:18:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:18:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:18:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-02-10 09:18:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:18:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:18:44 INFO imstat:::: Statistics --- 2026-02-10 09:18:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:18:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:18:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:18:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:18:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-02-10 09:18:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73592e-05 Jy/beam 2026-02-10 09:18:44 INFO imstat:::: -- IQR [quartile]: 3.55982e-05 Jy/beam 2026-02-10 09:18:44 INFO imstat:::: -- First quartile [q1]: -3.45035e-05 Jy/beam 2026-02-10 09:18:44 INFO imstat:::: -- Third quartile [q3]: 1.09469e-06 Jy/beam 2026-02-10 09:18:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:18:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:18:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:18:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:18:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:18:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:18:44 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 2026-02-10 09:18:44 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:18:44.438059 End time: 2026-02-10 09:18:44.465159 2026-02-10 09:18:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:18:44 INFO imstat::::casa ########################################## 2026-02-10 09:18:44 INFO phaseshift::::casa ########################################## 2026-02-10 09:18:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:18:44 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40d06m0.0019' ) 2026-02-10 09:18:45 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:18:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:18:45 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:18:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:18:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:18:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:18:45 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:18:45 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:18:45 INFO MSTransformManager::open Select data 2026-02-10 09:18:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:18:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:18:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40d06m0.0019' successfully parsed 2026-02-10 09:18:49 INFO phaseshift::::casa Shift phase center 2026-02-10 09:18:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:18:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:18:44.483461 End time: 2026-02-10 09:18:49.581155 2026-02-10 09:18:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:18:50 INFO phaseshift::::casa ########################################## 2026-02-10 09:18:50 INFO tclean::::casa ########################################## 2026-02-10 09:18:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:18:50 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 ) 2026-02-10 09:18:50 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:18:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:18:50 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:18:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:18:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:18:50 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:18:50 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:18:50 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:18:50 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:18:50 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:18:50 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:18:50 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:18:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:18:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024347 2026-02-10 09:18:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:18:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:18:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:18:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:18:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:18:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:18:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:18:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:18:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:18:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:18:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:18:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:18:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:18:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:18:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:18:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:18:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:18:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:18:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:18:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:18:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:18:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:18:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:18:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:18:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:18:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:18:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:18:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:18:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:18:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:19:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:19:00 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:19:00 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:19:00 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:19:01 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:19:02 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'] 2026-02-10 09:19:03 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:18:49.618067 End time: 2026-02-10 09:19:03.311931 2026-02-10 09:19:03 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:19:03 INFO tclean::::casa ########################################## 2026-02-10 09:19:03 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:19:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:19:03 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) 2026-02-10 09:19:03 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:19:03 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:19:03 2026****** 2026-02-10 09:19:03 INFO ImageFitter::fit+ 2026-02-10 09:19:03 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:19:03 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:19:03 INFO ImageFitter::fit+ --- region: 2026-02-10 09:19:03 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:19:03 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:19:03 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:19:03 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:19:03 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:19:03 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:19:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:19:03 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) 2026-02-10 09:19:03 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:19:03 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:19:03 INFO imstat::::casa ########################################## 2026-02-10 09:19:03 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:19:03 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 ) 2026-02-10 09:19:03 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:19:03 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:19:03 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:19:03 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:19:03 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:19:03 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:19:03 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:19:03 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:19:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:19:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:19:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:19:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:19:03 INFO imstat:::: Values --- 2026-02-10 09:19:03 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:19:03 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:19:03 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:19:03 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-02-10 09:19:03 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:19:03 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:19:03 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:19:03 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-02-10 09:19:03 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:19:03 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:19:03 INFO imstat:::: Statistics --- 2026-02-10 09:19:03 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:19:03 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:19:03 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:19:03 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:19:03 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-02-10 09:19:03 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-02-10 09:19:03 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-02-10 09:19:03 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-02-10 09:19:03 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-02-10 09:19:03 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:19:03 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:19:03 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:19:03 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:19:03 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:19:03 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:19:03 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779541e-05 4.999996e+00 2026-02-10 09:19:03 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:19:03.375626 End time: 2026-02-10 09:19:03.416384 2026-02-10 09:19:03 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:19:03 INFO imstat::::casa ########################################## 2026-02-10 09:19:03 INFO phaseshift::::casa ########################################## 2026-02-10 09:19:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:19:03 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 02:40:24.0001' ) 2026-02-10 09:19:03 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:19:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:19:03 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:19:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:19:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:19:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:19:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:19:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:19:03 INFO MSTransformManager::open Select data 2026-02-10 09:19:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:19:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-02-10 09:19:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 02:40:24.0001' successfully parsed 2026-02-10 09:19:07 INFO phaseshift::::casa Shift phase center 2026-02-10 09:19:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:19:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:19:03.438833 End time: 2026-02-10 09:19:07.554739 2026-02-10 09:19:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:19:08 INFO phaseshift::::casa ########################################## 2026-02-10 09:19:08 INFO tclean::::casa ########################################## 2026-02-10 09:19:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:19:08 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:19:08 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:19:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:19:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:19:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:19:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:19:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:19:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:19:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:19:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:19:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:19:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:19:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:19:09 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:19:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026582 2026-02-10 09:19:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:19:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:19:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:19:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:19:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:19:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:19:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:19:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:19:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:19:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:19:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:19:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:19:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:19:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:19:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:19:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:19:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:19:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:19:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:19:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:19:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:19:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:19:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:19:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:19:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:19:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:19:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:19:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:19:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:19:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:19:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:19:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:19:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:19:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:19:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:19:18 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'] 2026-02-10 09:19:20 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:19:07.614853 End time: 2026-02-10 09:19:19.662934 2026-02-10 09:19:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:19:20 INFO tclean::::casa ########################################## 2026-02-10 09:19:20 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:19:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:19:20 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) 2026-02-10 09:19:20 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:19:20 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:19:20 2026****** 2026-02-10 09:19:20 INFO ImageFitter::fit+ 2026-02-10 09:19:20 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:19:20 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:19:20 INFO ImageFitter::fit+ --- region: 2026-02-10 09:19:20 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:19:20 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:19:20 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:19:20 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:19:20 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:19:20 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:19:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:19:20 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) 2026-02-10 09:19:20 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:19:20 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:19:20 INFO imstat::::casa ########################################## 2026-02-10 09:19:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:19:20 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 ) 2026-02-10 09:19:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:19:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:19:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:19:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:19:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:19:20 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) 2026-02-10 09:19:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:19:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:19:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:19:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:19:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:19:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:19:20 INFO imstat:::: Values --- 2026-02-10 09:19:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:19:20 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:19:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:19:20 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-02-10 09:19:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:19:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:19:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:19:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-02-10 09:19:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:19:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:19:20 INFO imstat:::: Statistics --- 2026-02-10 09:19:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:19:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:19:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:19:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:19:20 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-02-10 09:19:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-02-10 09:19:20 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-02-10 09:19:20 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-02-10 09:19:20 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-02-10 09:19:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:19:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:19:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:19:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:19:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:19:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:19:20 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 2026-02-10 09:19:20 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:19:19.741094 End time: 2026-02-10 09:19:19.768101 2026-02-10 09:19:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:19:20 INFO imstat::::casa ########################################## 2026-02-10 09:19:20 INFO phaseshift::::casa ########################################## 2026-02-10 09:19:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:19:20 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40.100000528deg' ) 2026-02-10 09:19:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:19:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:19:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:19:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:19:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:19:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:19:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:19:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:19:20 INFO MSTransformManager::open Select data 2026-02-10 09:19:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:19:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:19:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40.100000528deg' successfully parsed 2026-02-10 09:19:24 INFO phaseshift::::casa Shift phase center 2026-02-10 09:19:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:19:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:19:19.785635 End time: 2026-02-10 09:19:25.232113 2026-02-10 09:19:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:19:25 INFO phaseshift::::casa ########################################## 2026-02-10 09:19:25 INFO tclean::::casa ########################################## 2026-02-10 09:19:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:19:25 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:19:25 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:19:25 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:19:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:19:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:19:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:19:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:19:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:19:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:19:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:19:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:19:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:19:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:19:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:19:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027841 2026-02-10 09:19:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:19:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:19:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:19:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:19:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:19:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:19:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:19:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:19:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:19:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:19:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:19:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:19:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:19:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:19:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:19:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:19:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:19:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:19:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:19:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:19:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:19:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:19:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:19:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:19:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:19:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:19:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:19:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:19:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:19:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:19:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:19:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:19:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:19:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:19:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:19:40 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'] 2026-02-10 09:19:41 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:19:25.291663 End time: 2026-02-10 09:19:41.277985 2026-02-10 09:19:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:19:41 INFO tclean::::casa ########################################## 2026-02-10 09:19:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:19:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:19:41 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) 2026-02-10 09:19:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:19:41 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:19:41 2026****** 2026-02-10 09:19:41 INFO ImageFitter::fit+ 2026-02-10 09:19:41 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:19:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:19:41 INFO ImageFitter::fit+ --- region: 2026-02-10 09:19:41 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:19:41 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:19:41 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:19:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:19:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:19:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:19:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:19:41 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) 2026-02-10 09:19:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:19:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:19:41 INFO imstat::::casa ########################################## 2026-02-10 09:19:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:19:41 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 ) 2026-02-10 09:19:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:19:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:19:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:19:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:19:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:19:41 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) 2026-02-10 09:19:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:19:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:19:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:19:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:19:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:19:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:19:41 INFO imstat:::: Values --- 2026-02-10 09:19:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:19:41 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:19:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:19:41 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-02-10 09:19:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:19:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:19:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:19:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-02-10 09:19:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:19:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:19:41 INFO imstat:::: Statistics --- 2026-02-10 09:19:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:19:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:19:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:19:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:19:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-02-10 09:19:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-02-10 09:19:41 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-02-10 09:19:41 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-02-10 09:19:41 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-02-10 09:19:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:19:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:19:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:19:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:19:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:19:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:19:41 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779537e-05 4.999996e+00 2026-02-10 09:19:41 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:19:41.358178 End time: 2026-02-10 09:19:41.399713 2026-02-10 09:19:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:19:41 INFO imstat::::casa ########################################## 2026-02-10 09:19:41 INFO phaseshift::::casa ########################################## 2026-02-10 09:19:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:19:41 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 0.699877039rad' ) 2026-02-10 09:19:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:19:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:19:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:19:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:19:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:19:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:19:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:19:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:19:41 INFO MSTransformManager::open Select data 2026-02-10 09:19:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:19:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:19:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 0.699877039rad' successfully parsed 2026-02-10 09:19:45 INFO phaseshift::::casa Shift phase center 2026-02-10 09:19:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:19:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:19:41.425361 End time: 2026-02-10 09:19:45.603468 2026-02-10 09:19:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:19:46 INFO phaseshift::::casa ########################################## 2026-02-10 09:19:46 INFO tclean::::casa ########################################## 2026-02-10 09:19:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:19:46 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 ) 2026-02-10 09:19:46 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:19:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:19:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:19:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:19:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:19:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:19:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:19:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:19:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:19:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:19:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:19:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:19:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:19:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017743 2026-02-10 09:19:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:19:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:19:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:19:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:19:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:19:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:19:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:19:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:19:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:19:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:19:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:19:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:19:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:19:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:19:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:19:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:19:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:19:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:19:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:19:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:19:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:19:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:19:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:19:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:19:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:19:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:19:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:19:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:19:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:19:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:19:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:19:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:19:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:19:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:19:59 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:20:01 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'] 2026-02-10 09:20:02 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:19:45.648930 End time: 2026-02-10 09:20:02.075600 2026-02-10 09:20:02 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:20:02 INFO tclean::::casa ########################################## 2026-02-10 09:20:02 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:20:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:20:02 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) 2026-02-10 09:20:02 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:20:02 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:20:02 2026****** 2026-02-10 09:20:02 INFO ImageFitter::fit+ 2026-02-10 09:20:02 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:20:02 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:20:02 INFO ImageFitter::fit+ --- region: 2026-02-10 09:20:02 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:20:02 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:20:02 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:20:02 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:20:02 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:20:02 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:20:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:20:02 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) 2026-02-10 09:20:02 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:20:02 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:20:02 INFO imstat::::casa ########################################## 2026-02-10 09:20:02 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:20:02 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 ) 2026-02-10 09:20:02 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:20:02 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:20:02 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:20:02 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:20:02 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:20:02 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:20:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:20:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:20:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:20:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:20:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:20:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:20:02 INFO imstat:::: Values --- 2026-02-10 09:20:02 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:20:02 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:20:02 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:20:02 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-02-10 09:20:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:20:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:20:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:20:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-02-10 09:20:02 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:20:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:20:02 INFO imstat:::: Statistics --- 2026-02-10 09:20:02 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:20:02 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:20:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:20:02 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:20:02 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-02-10 09:20:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-02-10 09:20:02 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-02-10 09:20:02 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-02-10 09:20:02 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-02-10 09:20:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:20:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:20:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:20:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:20:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:20:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:20:02 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 2026-02-10 09:20:02 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:20:02.154826 End time: 2026-02-10 09:20:02.183747 2026-02-10 09:20:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:20:02 INFO imstat::::casa ########################################## 2026-02-10 09:20:02 INFO phaseshift::::casa ########################################## 2026-02-10 09:20:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:20:02 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40d06m0.0019' ) 2026-02-10 09:20:02 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:20:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:20:02 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:20:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:20:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:20:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:20:02 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:20:02 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:20:02 INFO MSTransformManager::open Select data 2026-02-10 09:20:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:20:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:20:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40d06m0.0019' successfully parsed 2026-02-10 09:20:05 INFO phaseshift::::casa Shift phase center 2026-02-10 09:20:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:20:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:20:02.201126 End time: 2026-02-10 09:20:06.307131 2026-02-10 09:20:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:20:06 INFO phaseshift::::casa ########################################## 2026-02-10 09:20:06 INFO tclean::::casa ########################################## 2026-02-10 09:20:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:20:06 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 ) 2026-02-10 09:20:06 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:20:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:20:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:20:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:20:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:20:07 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:20:07 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:20:07 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:20:07 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:20:07 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:20:07 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:20:07 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:20:08 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:20:08 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025346 2026-02-10 09:20:08 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:20:08 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:20:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:20:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:20:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:20:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:20:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:20:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:20:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:20:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:20:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:20:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:20:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:20:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:20:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:20:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:20:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:20:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:20:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:20:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:20:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:20:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:20:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:20:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:20:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:20:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:20:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:20:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:20:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:20:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:20:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:20:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:20:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:20:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:20:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:20:17 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'] 2026-02-10 09:20:18 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:20:06.352862 End time: 2026-02-10 09:20:18.060084 2026-02-10 09:20:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:20:18 INFO tclean::::casa ########################################## 2026-02-10 09:20:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:20:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:20:18 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:20:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:20:18 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:20:18 2026****** 2026-02-10 09:20:18 INFO ImageFitter::fit+ 2026-02-10 09:20:18 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:20:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:20:18 INFO ImageFitter::fit+ --- region: 2026-02-10 09:20:18 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:20:18 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:20:18 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:20:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:20:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:20:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:20:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:20:18 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:20:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:20:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:20:18 INFO imstat::::casa ########################################## 2026-02-10 09:20:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:20:18 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-02-10 09:20:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:20:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:20:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:20:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:20:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:20:18 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:20:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:20:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:20:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:20:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:20:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:20:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:20:18 INFO imstat:::: Values --- 2026-02-10 09:20:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:20:18 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:20:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:20:18 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-02-10 09:20:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:20:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:20:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:20:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-02-10 09:20:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:20:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:20:18 INFO imstat:::: Statistics --- 2026-02-10 09:20:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:20:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:20:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:20:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:20:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-02-10 09:20:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-02-10 09:20:18 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-02-10 09:20:18 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-02-10 09:20:18 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-02-10 09:20:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:20:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:20:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:20:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:20:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:20:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:20:18 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 2026-02-10 09:20:18 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:20:18.132107 End time: 2026-02-10 09:20:18.160721 2026-02-10 09:20:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:20:18 INFO imstat::::casa ########################################## 2026-02-10 09:20:18 INFO phaseshift::::casa ########################################## 2026-02-10 09:20:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:20:18 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 02:40:24.0001' ) 2026-02-10 09:20:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:20:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:20:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:20:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:20:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:20:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:20:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:20:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:20:18 INFO MSTransformManager::open Select data 2026-02-10 09:20:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:20:21 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 ".". 2026-02-10 09:20:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 02:40:24.0001' successfully parsed 2026-02-10 09:20:21 INFO phaseshift::::casa Shift phase center 2026-02-10 09:20:23 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:20:23 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:20:18.178935 End time: 2026-02-10 09:20:23.219090 2026-02-10 09:20:23 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:20:23 INFO phaseshift::::casa ########################################## 2026-02-10 09:20:23 INFO tclean::::casa ########################################## 2026-02-10 09:20:23 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:20:23 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:20:23 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:20:23 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:20:23 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:20:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:20:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:20:23 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:20:23 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:20:23 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:20:23 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:20:23 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:20:23 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:20:23 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:20:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:20:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023381 2026-02-10 09:20:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:20:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:20:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:20:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:20:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:20:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:20:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:20:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:20:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:20:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:20:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:20:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:20:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:20:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:20:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:20:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:20:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:20:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:20:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:20:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:20:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:20:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:20:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:20:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:20:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:20:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:20:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:20:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:20:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:20:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:20:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:20:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:20:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:20:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:20:38 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:20:38 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'] 2026-02-10 09:20:39 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:20:23.278793 End time: 2026-02-10 09:20:39.122491 2026-02-10 09:20:39 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:20:39 INFO tclean::::casa ########################################## 2026-02-10 09:20:39 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:20:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:20:39 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) 2026-02-10 09:20:39 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:20:39 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:20:39 2026****** 2026-02-10 09:20:39 INFO ImageFitter::fit+ 2026-02-10 09:20:39 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:20:39 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:20:39 INFO ImageFitter::fit+ --- region: 2026-02-10 09:20:39 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:20:39 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:20:39 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:20:39 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:20:39 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:20:39 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:20:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:20:39 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) 2026-02-10 09:20:39 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:20:39 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:20:39 INFO imstat::::casa ########################################## 2026-02-10 09:20:39 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:20:39 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 ) 2026-02-10 09:20:39 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:20:39 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:20:39 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:20:39 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:20:39 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:20:39 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) 2026-02-10 09:20:39 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:20:39 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:20:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:20:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:20:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:20:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:20:39 INFO imstat:::: Values --- 2026-02-10 09:20:39 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:20:39 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:20:39 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:20:39 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-02-10 09:20:39 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:20:39 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:20:39 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:20:39 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-02-10 09:20:39 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:20:39 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:20:39 INFO imstat:::: Statistics --- 2026-02-10 09:20:39 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:20:39 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:20:39 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:20:39 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:20:39 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-02-10 09:20:39 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-02-10 09:20:39 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-02-10 09:20:39 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-02-10 09:20:39 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-02-10 09:20:39 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:20:39 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:20:39 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:20:39 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:20:39 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:20:39 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:20:39 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 2026-02-10 09:20:39 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:20:39.200576 End time: 2026-02-10 09:20:39.229044 2026-02-10 09:20:39 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:20:39 INFO imstat::::casa ########################################## 2026-02-10 09:20:39 INFO phaseshift::::casa ########################################## 2026-02-10 09:20:39 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:20:39 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40.100000528deg' ) 2026-02-10 09:20:39 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:20:39 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:20:39 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:20:39 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:20:39 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:20:39 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:20:39 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:20:39 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:20:39 INFO MSTransformManager::open Select data 2026-02-10 09:20:39 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:20:42 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:20:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40.100000528deg' successfully parsed 2026-02-10 09:20:42 INFO phaseshift::::casa Shift phase center 2026-02-10 09:20:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:20:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:20:39.246249 End time: 2026-02-10 09:20:42.721686 2026-02-10 09:20:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:20:43 INFO phaseshift::::casa ########################################## 2026-02-10 09:20:43 INFO tclean::::casa ########################################## 2026-02-10 09:20:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:20:43 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 ) 2026-02-10 09:20:43 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:20:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:20:43 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:20:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:20:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:20:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:20:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:20:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:20:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:20:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:20:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:20:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:20:44 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:20:44 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023644 2026-02-10 09:20:44 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:20:44 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:20:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:20:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:20:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:20:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:20:46 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:20:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:20:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:20:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:20:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:20:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:20:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:20:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:20:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:20:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:20:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:20:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:20:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:20:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:20:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:20:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:20:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:20:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:20:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:20:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:20:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:20:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:20:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:20:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:20:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:20:52 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:20:52 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:20:52 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:20:53 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:20:53 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'] 2026-02-10 09:20:55 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:20:42.778896 End time: 2026-02-10 09:20:54.562787 2026-02-10 09:20:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:20:55 INFO tclean::::casa ########################################## 2026-02-10 09:20:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:20:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:20:55 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) 2026-02-10 09:20:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:20:55 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:20:55 2026****** 2026-02-10 09:20:55 INFO ImageFitter::fit+ 2026-02-10 09:20:55 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:20:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:20:55 INFO ImageFitter::fit+ --- region: 2026-02-10 09:20:55 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:20:55 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:20:55 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:20:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:20:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:20:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:20:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:20:55 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) 2026-02-10 09:20:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:20:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:20:55 INFO imstat::::casa ########################################## 2026-02-10 09:20:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:20:55 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 ) 2026-02-10 09:20:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:20:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:20:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:20:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:20:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:20:55 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:20:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:20:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:20:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:20:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:20:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:20:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:20:55 INFO imstat:::: Values --- 2026-02-10 09:20:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:20:55 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:20:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:20:55 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-02-10 09:20:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:20:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:20:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:20:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-02-10 09:20:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:20:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:20:55 INFO imstat:::: Statistics --- 2026-02-10 09:20:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:20:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:20:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:20:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:20:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-02-10 09:20:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-02-10 09:20:55 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-02-10 09:20:55 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-02-10 09:20:55 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-02-10 09:20:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:20:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:20:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:20:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:20:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:20:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:20:55 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 2026-02-10 09:20:55 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:20:54.632247 End time: 2026-02-10 09:20:54.665592 2026-02-10 09:20:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:20:55 INFO imstat::::casa ########################################## 2026-02-10 09:20:55 INFO phaseshift::::casa ########################################## 2026-02-10 09:20:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:20:55 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 0.699877039rad' ) 2026-02-10 09:20:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:20:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:20:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:20:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:20:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:20:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:20:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:20:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:20:55 INFO MSTransformManager::open Select data 2026-02-10 09:20:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:20:58 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:20:58 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 0.699877039rad' successfully parsed 2026-02-10 09:20:58 INFO phaseshift::::casa Shift phase center 2026-02-10 09:20:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:20:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:20:54.680217 End time: 2026-02-10 09:20:58.581948 2026-02-10 09:20:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:20:59 INFO phaseshift::::casa ########################################## 2026-02-10 09:20:59 INFO tclean::::casa ########################################## 2026-02-10 09:20:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:20:59 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 ) 2026-02-10 09:20:59 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:20:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:20:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:20:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:20:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:20:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:20:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:20:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:20:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:20:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:20:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:20:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:21:00 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:21:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020729 2026-02-10 09:21:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:21:01 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:21:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:21:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:21:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:21:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:21:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:21:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:21:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:21:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:21:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:21:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:21:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:21:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:21:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:21:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:21:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:21:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:21:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:21:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:21:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:21:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:21:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:21:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:21:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:21:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:21:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:21:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:21:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:21:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:21:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:21:10 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'] 2026-02-10 09:21:11 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:20:58.642933 End time: 2026-02-10 09:21:11.151317 2026-02-10 09:21:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:21:11 INFO tclean::::casa ########################################## 2026-02-10 09:21:11 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:21:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:21:11 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) 2026-02-10 09:21:11 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:21:11 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:21:11 2026****** 2026-02-10 09:21:11 INFO ImageFitter::fit+ 2026-02-10 09:21:11 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:21:11 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:21:11 INFO ImageFitter::fit+ --- region: 2026-02-10 09:21:11 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:21:11 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:21:11 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:21:11 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:21:11 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:21:11 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:21:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:21:11 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) 2026-02-10 09:21:11 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:21:11 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:21:11 INFO imstat::::casa ########################################## 2026-02-10 09:21:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:21:11 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 ) 2026-02-10 09:21:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:21:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:21:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:21:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:21:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:21:11 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) 2026-02-10 09:21:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:21:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:21:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:21:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:21:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:21:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:21:11 INFO imstat:::: Values --- 2026-02-10 09:21:11 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:21:11 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:21:11 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:21:11 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-02-10 09:21:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:21:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:21:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:21:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-02-10 09:21:11 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:21:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:21:11 INFO imstat:::: Statistics --- 2026-02-10 09:21:11 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:21:11 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:21:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:21:11 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:21:11 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-02-10 09:21:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-02-10 09:21:11 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-02-10 09:21:11 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-02-10 09:21:11 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-02-10 09:21:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:21:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:21:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:21:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:21:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:21:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:21:11 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778665e-05 4.999996e+00 2026-02-10 09:21:11 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:21:11.220675 End time: 2026-02-10 09:21:11.246171 2026-02-10 09:21:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:21:11 INFO imstat::::casa ########################################## 2026-02-10 09:21:11 INFO phaseshift::::casa ########################################## 2026-02-10 09:21:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:21:11 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40d06m0.0019' ) 2026-02-10 09:21:11 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:21:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:21:11 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:21:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:21:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:21:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:21:11 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:21:11 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:21:11 INFO MSTransformManager::open Select data 2026-02-10 09:21:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:21:15 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:21:15 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40d06m0.0019' successfully parsed 2026-02-10 09:21:15 INFO phaseshift::::casa Shift phase center 2026-02-10 09:21:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:21:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:21:11.268171 End time: 2026-02-10 09:21:15.940278 2026-02-10 09:21:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:21:16 INFO phaseshift::::casa ########################################## 2026-02-10 09:21:16 INFO tclean::::casa ########################################## 2026-02-10 09:21:16 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:21:16 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:21:16 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:21:16 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:21:16 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:21:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:21:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:21:16 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:21:16 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:21:16 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:21:16 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:21:16 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:21:16 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:21:16 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:21:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:21:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.01729 2026-02-10 09:21:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:21:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:21:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:21:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:21:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:21:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:21:20 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:21:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:21:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:21:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:21:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:21:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:21:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:21:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:21:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:21:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:21:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:21:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:21:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:21:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:21:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:21:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:21:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:21:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:21:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:21:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:21:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:21:26 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:21:26 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:21:26 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:21:26 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:21:26 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-02-10 09:21:28 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:21:15.997440 End time: 2026-02-10 09:21:27.601320 2026-02-10 09:21:28 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:21:28 INFO tclean::::casa ########################################## 2026-02-10 09:21:28 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:21:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:21:28 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) 2026-02-10 09:21:28 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:21:28 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:21:28 2026****** 2026-02-10 09:21:28 INFO ImageFitter::fit+ 2026-02-10 09:21:28 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:21:28 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:21:28 INFO ImageFitter::fit+ --- region: 2026-02-10 09:21:28 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:21:28 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:21:28 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:21:28 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:21:28 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:21:28 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:21:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:21:28 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) 2026-02-10 09:21:28 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:21:28 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:21:28 INFO imstat::::casa ########################################## 2026-02-10 09:21:28 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:21:28 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 ) 2026-02-10 09:21:28 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:21:28 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:21:28 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:21:28 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:21:28 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:21:28 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) 2026-02-10 09:21:28 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:21:28 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:21:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:21:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:21:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:21:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:21:28 INFO imstat:::: Values --- 2026-02-10 09:21:28 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:21:28 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:21:28 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:21:28 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-02-10 09:21:28 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:21:28 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:21:28 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:21:28 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-02-10 09:21:28 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:21:28 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:21:28 INFO imstat:::: Statistics --- 2026-02-10 09:21:28 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:21:28 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:21:28 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:21:28 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:21:28 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-02-10 09:21:28 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-02-10 09:21:28 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-02-10 09:21:28 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-02-10 09:21:28 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-02-10 09:21:28 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:21:28 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:21:28 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:21:28 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:21:28 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:21:28 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:21:28 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 2026-02-10 09:21:28 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:21:27.668165 End time: 2026-02-10 09:21:27.693075 2026-02-10 09:21:28 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:21:28 INFO imstat::::casa ########################################## 2026-02-10 09:21:28 INFO phaseshift::::casa ########################################## 2026-02-10 09:21:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:21:28 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 02:40:24.0001' ) 2026-02-10 09:21:28 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:21:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:21:28 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:21:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:21:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:21:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:21:28 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:21:28 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:21:28 INFO MSTransformManager::open Select data 2026-02-10 09:21:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:21:31 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 ".". 2026-02-10 09:21:31 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 02:40:24.0001' successfully parsed 2026-02-10 09:21:31 INFO phaseshift::::casa Shift phase center 2026-02-10 09:21:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:21:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:21:27.709163 End time: 2026-02-10 09:21:31.887840 2026-02-10 09:21:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:21:32 INFO phaseshift::::casa ########################################## 2026-02-10 09:21:32 INFO tclean::::casa ########################################## 2026-02-10 09:21:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:21:32 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 ) 2026-02-10 09:21:32 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:21:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:21:32 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:21:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:21:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:21:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:21:32 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:21:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:21:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:21:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:21:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:21:32 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:21:33 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:21:33 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026584 2026-02-10 09:21:33 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:21:33 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:21:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:21:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:21:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:21:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:21:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:21:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:21:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:21:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:21:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:21:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:21:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:21:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:21:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:21:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:21:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:21:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:21:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:21:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:21:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:21:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:21:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:21:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:21:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:21:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:21:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:21:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:21:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:21:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:21:44 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:21:44 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'] 2026-02-10 09:21:46 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:21:31.952168 End time: 2026-02-10 09:21:45.512900 2026-02-10 09:21:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:21:46 INFO tclean::::casa ########################################## 2026-02-10 09:21:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:21:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:21:46 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) 2026-02-10 09:21:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:21:46 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:21:46 2026****** 2026-02-10 09:21:46 INFO ImageFitter::fit+ 2026-02-10 09:21:46 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:21:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:21:46 INFO ImageFitter::fit+ --- region: 2026-02-10 09:21:46 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:21:46 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:21:46 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:21:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:21:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:21:46 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:21:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:21:46 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) 2026-02-10 09:21:46 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:21:46 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:21:46 INFO imstat::::casa ########################################## 2026-02-10 09:21:46 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:21:46 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 ) 2026-02-10 09:21:46 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:21:46 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:21:46 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:21:46 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:21:46 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:21:46 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) 2026-02-10 09:21:46 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:21:46 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:21:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:21:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:21:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:21:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:21:46 INFO imstat:::: Values --- 2026-02-10 09:21:46 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:21:46 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:21:46 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:21:46 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-02-10 09:21:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:21:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:21:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:21:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-02-10 09:21:46 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:21:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:21:46 INFO imstat:::: Statistics --- 2026-02-10 09:21:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:21:46 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:21:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:21:46 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:21:46 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-02-10 09:21:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-02-10 09:21:46 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-02-10 09:21:46 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-02-10 09:21:46 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-02-10 09:21:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:21:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:21:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:21:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:21:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:21:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:21:46 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 2026-02-10 09:21:46 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:21:45.577799 End time: 2026-02-10 09:21:45.610156 2026-02-10 09:21:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:21:46 INFO imstat::::casa ########################################## 2026-02-10 09:21:46 INFO phaseshift::::casa ########################################## 2026-02-10 09:21:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:21:46 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40.100000528deg' ) 2026-02-10 09:21:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:21:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:21:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:21:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:21:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:21:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:21:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:21:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:21:46 INFO MSTransformManager::open Select data 2026-02-10 09:21:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:21:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:21:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40.100000528deg' successfully parsed 2026-02-10 09:21:50 INFO phaseshift::::casa Shift phase center 2026-02-10 09:21:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:21:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:21:45.625499 End time: 2026-02-10 09:21:50.643243 2026-02-10 09:21:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:21:51 INFO phaseshift::::casa ########################################## 2026-02-10 09:21:51 INFO tclean::::casa ########################################## 2026-02-10 09:21:51 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:21:51 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:21:51 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:21:51 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:21:51 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:21:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:21:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:21:51 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:21:51 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:21:51 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:21:51 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:21:51 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:21:51 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:21:51 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:21:53 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:21:53 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027541 2026-02-10 09:21:53 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:21:53 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:21:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:21:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:21:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:21:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:21:55 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:21:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:21:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:21:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:21:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:21:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:21:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:21:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:21:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:21:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:21:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:21:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:21:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:22:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:22:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:22:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:22:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:22:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:22:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:22:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:22:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:22:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:22:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:22:02 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:22:02 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:22:02 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:22:03 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:22:04 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'] 2026-02-10 09:22:06 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:21:50.691786 End time: 2026-02-10 09:22:05.946265 2026-02-10 09:22:06 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:22:06 INFO tclean::::casa ########################################## 2026-02-10 09:22:06 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:22:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:22:06 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:22:06 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:22:06 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:22:06 2026****** 2026-02-10 09:22:06 INFO ImageFitter::fit+ 2026-02-10 09:22:06 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:22:06 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:22:06 INFO ImageFitter::fit+ --- region: 2026-02-10 09:22:06 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:22:06 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:22:06 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:22:06 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:22:06 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:22:06 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:22:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:22:06 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:22:06 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:22:06 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:22:06 INFO imstat::::casa ########################################## 2026-02-10 09:22:06 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:22:06 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-02-10 09:22:06 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:22:06 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:22:06 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:22:06 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:22:06 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:22:06 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:22:06 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:22:06 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:22:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:22:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:22:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:22:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:22:06 INFO imstat:::: Values --- 2026-02-10 09:22:06 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:22:06 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:22:06 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:22:06 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-02-10 09:22:06 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:22:06 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:22:06 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:22:06 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-02-10 09:22:06 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:22:06 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:22:06 INFO imstat:::: Statistics --- 2026-02-10 09:22:06 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:22:06 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:22:06 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:22:06 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:22:06 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-02-10 09:22:06 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-02-10 09:22:06 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-02-10 09:22:06 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-02-10 09:22:06 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-02-10 09:22:06 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:22:06 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:22:06 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:22:06 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:22:06 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:22:06 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:22:06 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779537e-05 4.999996e+00 2026-02-10 09:22:06 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:22:06.032961 End time: 2026-02-10 09:22:06.066700 2026-02-10 09:22:06 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:22:06 INFO imstat::::casa ########################################## 2026-02-10 09:22:06 INFO phaseshift::::casa ########################################## 2026-02-10 09:22:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:22:06 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 0.699877039rad' ) 2026-02-10 09:22:06 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:22:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:22:06 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:22:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:22:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:22:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:22:06 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:22:06 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:22:06 INFO MSTransformManager::open Select data 2026-02-10 09:22:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:22:09 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:22:09 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 0.699877039rad' successfully parsed 2026-02-10 09:22:09 INFO phaseshift::::casa Shift phase center 2026-02-10 09:22:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:22:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:22:06.097158 End time: 2026-02-10 09:22:10.428217 2026-02-10 09:22:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:22:10 INFO phaseshift::::casa ########################################## 2026-02-10 09:22:10 INFO tclean::::casa ########################################## 2026-02-10 09:22:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:22:10 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 ) 2026-02-10 09:22:10 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:22:11 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:22:11 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:22:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:22:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:22:11 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:22:11 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:22:11 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:22:11 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:22:11 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:22:11 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:22:11 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:22:12 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:22:12 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025771 2026-02-10 09:22:12 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:22:12 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:22:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:22:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:22:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:22:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:22:14 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:22:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:22:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:22:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:22:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:22:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:22:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:22:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:22:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:22:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:22:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:22:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:22:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:22:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:22:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:22:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:22:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:22:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:22:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:22:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:22:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:22:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:22:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:22:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:22:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:22:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:22:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:22:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:22:23 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:22:23 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'] 2026-02-10 09:22:25 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:22:10.483979 End time: 2026-02-10 09:22:25.272058 2026-02-10 09:22:25 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:22:25 INFO tclean::::casa ########################################## 2026-02-10 09:22:25 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:22:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:22:25 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:22:25 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:22:25 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:22:25 2026****** 2026-02-10 09:22:25 INFO ImageFitter::fit+ 2026-02-10 09:22:25 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:22:25 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:22:25 INFO ImageFitter::fit+ --- region: 2026-02-10 09:22:25 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:22:25 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:22:25 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:22:25 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:22:25 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:22:25 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:22:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:22:25 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:22:25 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:22:25 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:22:25 INFO imstat::::casa ########################################## 2026-02-10 09:22:25 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:22:25 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 ) 2026-02-10 09:22:25 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:22:25 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:22:25 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:22:25 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:22:25 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:22:25 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:22:25 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:22:25 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:22:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:22:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:22:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:22:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:22:25 INFO imstat:::: Values --- 2026-02-10 09:22:25 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:22:25 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:22:25 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:22:25 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-02-10 09:22:25 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:22:25 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:22:25 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:22:25 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-02-10 09:22:25 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:22:25 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:22:25 INFO imstat:::: Statistics --- 2026-02-10 09:22:25 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:22:25 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:22:25 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:22:25 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:22:25 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-02-10 09:22:25 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-02-10 09:22:25 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-02-10 09:22:25 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-02-10 09:22:25 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-02-10 09:22:25 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:22:25 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:22:25 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:22:25 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:22:25 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:22:25 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:22:25 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778665e-05 4.999996e+00 2026-02-10 09:22:25 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:22:25.354189 End time: 2026-02-10 09:22:25.382936 2026-02-10 09:22:25 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:22:25 INFO imstat::::casa ########################################## 2026-02-10 09:22:25 INFO phaseshift::::casa ########################################## 2026-02-10 09:22:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:22:25 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40d06m0.0019' ) 2026-02-10 09:22:25 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:22:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:22:25 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:22:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:22:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:22:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:22:25 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:22:25 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:22:25 INFO MSTransformManager::open Select data 2026-02-10 09:22:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:22:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:22:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40d06m0.0019' successfully parsed 2026-02-10 09:22:30 INFO phaseshift::::casa Shift phase center 2026-02-10 09:22:31 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:22:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:22:25.400923 End time: 2026-02-10 09:22:31.067786 2026-02-10 09:22:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:22:31 INFO phaseshift::::casa ########################################## 2026-02-10 09:22:31 INFO tclean::::casa ########################################## 2026-02-10 09:22:31 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:22:31 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:22:31 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:22:31 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:22:31 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:22:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:22:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:22:31 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:22:31 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:22:31 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:22:31 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:22:31 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:22:31 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:22:31 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:22:33 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:22:33 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02419 2026-02-10 09:22:33 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:22:33 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:22:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:22:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:22:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:22:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:22:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:22:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:22:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:22:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:22:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:22:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:22:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:22:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:22:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:22:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:22:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:22:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:22:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:22:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:22:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:22:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:22:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:22:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:22:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:22:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:22:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:22:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:22:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:22:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:22:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:22:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:22:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:22:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:22:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:22:43 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'] 2026-02-10 09:22:45 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:22:31.127462 End time: 2026-02-10 09:22:44.539361 2026-02-10 09:22:45 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:22:45 INFO tclean::::casa ########################################## 2026-02-10 09:22:45 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:22:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:22:45 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:22:45 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:22:45 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:22:45 2026****** 2026-02-10 09:22:45 INFO ImageFitter::fit+ 2026-02-10 09:22:45 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:22:45 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:22:45 INFO ImageFitter::fit+ --- region: 2026-02-10 09:22:45 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:22:45 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:22:45 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:22:45 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:22:45 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:22:45 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:22:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:22:45 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:22:45 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:22:45 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:22:45 INFO imstat::::casa ########################################## 2026-02-10 09:22:45 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:22:45 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-02-10 09:22:45 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:22:45 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:22:45 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:22:45 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:22:45 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:22:45 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:22:45 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:22:45 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:22:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:22:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:22:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:22:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:22:45 INFO imstat:::: Values --- 2026-02-10 09:22:45 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:22:45 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:22:45 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:22:45 INFO imstat:::: -- minimum value [min]: -7.77984e-05 Jy/beam 2026-02-10 09:22:45 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:22:45 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:22:45 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:22:45 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-02-10 09:22:45 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:22:45 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:22:45 INFO imstat:::: Statistics --- 2026-02-10 09:22:45 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:22:45 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:22:45 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:22:45 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:22:45 INFO imstat:::: -- Median of the pixel values [median]: -1.86704e-05 Jy/beam 2026-02-10 09:22:45 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7365e-05 Jy/beam 2026-02-10 09:22:45 INFO imstat:::: -- IQR [quartile]: 3.56348e-05 Jy/beam 2026-02-10 09:22:45 INFO imstat:::: -- First quartile [q1]: -3.45131e-05 Jy/beam 2026-02-10 09:22:45 INFO imstat:::: -- Third quartile [q3]: 1.12172e-06 Jy/beam 2026-02-10 09:22:45 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:22:45 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:22:45 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:22:45 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:22:45 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:22:45 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:22:45 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 2026-02-10 09:22:45 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:22:44.613458 End time: 2026-02-10 09:22:44.639633 2026-02-10 09:22:45 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:22:45 INFO imstat::::casa ########################################## 2026-02-10 09:22:45 INFO phaseshift::::casa ########################################## 2026-02-10 09:22:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:22:45 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 02:40:24.0001' ) 2026-02-10 09:22:45 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:22:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:22:45 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:22:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:22:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:22:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:22:45 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:22:45 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:22:45 INFO MSTransformManager::open Select data 2026-02-10 09:22:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:22:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-02-10 09:22:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 02:40:24.0001' successfully parsed 2026-02-10 09:22:49 INFO phaseshift::::casa Shift phase center 2026-02-10 09:22:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:22:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:22:44.656942 End time: 2026-02-10 09:22:49.527806 2026-02-10 09:22:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:22:50 INFO phaseshift::::casa ########################################## 2026-02-10 09:22:50 INFO tclean::::casa ########################################## 2026-02-10 09:22:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:22:50 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 ) 2026-02-10 09:22:50 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:22:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:22:50 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:22:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:22:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:22:50 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:22:50 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:22:50 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:22:50 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:22:50 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:22:50 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:22:50 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:22:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:22:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028279 2026-02-10 09:22:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:22:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:22:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:22:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:22:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:22:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:22:55 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:22:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:22:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:22:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:22:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:22:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:22:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:22:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:22:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:22:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:22:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:22:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:23:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:23:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:23:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:23:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:23:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:23:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:23:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:23:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:23:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:23:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:23:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:23:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:23:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:23:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:23:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:23:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:23:07 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:23:08 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'] 2026-02-10 09:23:10 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:22:49.584162 End time: 2026-02-10 09:23:09.515873 2026-02-10 09:23:10 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:23:10 INFO tclean::::casa ########################################## 2026-02-10 09:23:10 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:23:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:23:10 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) 2026-02-10 09:23:10 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:23:10 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:23:10 2026****** 2026-02-10 09:23:10 INFO ImageFitter::fit+ 2026-02-10 09:23:10 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:23:10 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:23:10 INFO ImageFitter::fit+ --- region: 2026-02-10 09:23:10 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:23:10 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:23:10 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:23:10 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:23:10 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:23:10 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:23:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:23:10 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) 2026-02-10 09:23:10 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116894 Jy 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126508 Jy 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:23:10 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:23:10 INFO imstat::::casa ########################################## 2026-02-10 09:23:10 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:23:10 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 ) 2026-02-10 09:23:10 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:23:10 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:23:10 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:23:10 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:23:10 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:23:10 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) 2026-02-10 09:23:10 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:23:10 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:23:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:23:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:23:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:23:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:23:10 INFO imstat:::: Values --- 2026-02-10 09:23:10 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:23:10 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:23:10 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:23:10 INFO imstat:::: -- minimum value [min]: -7.78076e-05 Jy/beam 2026-02-10 09:23:10 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:23:10 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:23:10 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:23:10 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-02-10 09:23:10 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:23:10 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:23:10 INFO imstat:::: Statistics --- 2026-02-10 09:23:10 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:23:10 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:23:10 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:23:10 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:23:10 INFO imstat:::: -- Median of the pixel values [median]: -1.86848e-05 Jy/beam 2026-02-10 09:23:10 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73951e-05 Jy/beam 2026-02-10 09:23:10 INFO imstat:::: -- IQR [quartile]: 3.56676e-05 Jy/beam 2026-02-10 09:23:10 INFO imstat:::: -- First quartile [q1]: -3.45186e-05 Jy/beam 2026-02-10 09:23:10 INFO imstat:::: -- Third quartile [q3]: 1.14894e-06 Jy/beam 2026-02-10 09:23:10 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:23:10 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:23:10 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:23:10 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:23:10 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:23:10 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:23:10 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 2026-02-10 09:23:10 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:23:09.598639 End time: 2026-02-10 09:23:09.636549 2026-02-10 09:23:10 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:23:10 INFO imstat::::casa ########################################## 2026-02-10 09:23:10 INFO phaseshift::::casa ########################################## 2026-02-10 09:23:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:23:10 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40.100000528deg' ) 2026-02-10 09:23:10 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:23:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:23:10 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:23:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:23:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:23:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:23:10 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:23:10 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:23:10 INFO MSTransformManager::open Select data 2026-02-10 09:23:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:23:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:23:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40.100000528deg' successfully parsed 2026-02-10 09:23:13 INFO phaseshift::::casa Shift phase center 2026-02-10 09:23:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:23:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:23:09.653245 End time: 2026-02-10 09:23:13.641317 2026-02-10 09:23:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:23:14 INFO phaseshift::::casa ########################################## 2026-02-10 09:23:14 INFO tclean::::casa ########################################## 2026-02-10 09:23:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:23:14 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:23:14 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:23:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:23:14 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:23:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:23:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:23:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:23:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:23:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:23:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:23:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:23:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:23:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:23:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:23:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02816 2026-02-10 09:23:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:23:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:23:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:23:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:23:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:23:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:23:18 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:23:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:23:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:23:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:23:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:23:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:23:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:23:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:23:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:23:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:23:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:23:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:23:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:23:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:23:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:23:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:23:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:23:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:23:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:23:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:23:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:23:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:23:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:23:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:23:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:23:25 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:23:25 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:23:25 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:23:26 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:23:26 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-02-10 09:23:27 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:23:13.697378 End time: 2026-02-10 09:23:27.489985 2026-02-10 09:23:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:23:27 INFO tclean::::casa ########################################## 2026-02-10 09:23:28 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:23:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:23:28 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) 2026-02-10 09:23:28 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:23:28 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:23:28 2026****** 2026-02-10 09:23:28 INFO ImageFitter::fit+ 2026-02-10 09:23:28 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:23:28 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:23:28 INFO ImageFitter::fit+ --- region: 2026-02-10 09:23:28 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:23:28 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:23:28 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:23:28 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:23:28 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:23:28 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:23:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:23:28 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) 2026-02-10 09:23:28 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116882 Jy 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:23:28 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:23:28 INFO imstat::::casa ########################################## 2026-02-10 09:23:28 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:23:28 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 ) 2026-02-10 09:23:28 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:23:28 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:23:28 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:23:28 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:23:28 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:23:28 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) 2026-02-10 09:23:28 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:23:28 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:23:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:23:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:23:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:23:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:23:28 INFO imstat:::: Values --- 2026-02-10 09:23:28 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:23:28 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:23:28 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:23:28 INFO imstat:::: -- minimum value [min]: -7.77982e-05 Jy/beam 2026-02-10 09:23:28 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:23:28 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:23:28 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:23:28 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-02-10 09:23:28 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:23:28 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:23:28 INFO imstat:::: Statistics --- 2026-02-10 09:23:28 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:23:28 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:23:28 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:23:28 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:23:28 INFO imstat:::: -- Median of the pixel values [median]: -1.86711e-05 Jy/beam 2026-02-10 09:23:28 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73646e-05 Jy/beam 2026-02-10 09:23:28 INFO imstat:::: -- IQR [quartile]: 3.56367e-05 Jy/beam 2026-02-10 09:23:28 INFO imstat:::: -- First quartile [q1]: -3.45138e-05 Jy/beam 2026-02-10 09:23:28 INFO imstat:::: -- Third quartile [q3]: 1.12291e-06 Jy/beam 2026-02-10 09:23:28 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:23:28 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:23:28 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:23:28 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:23:28 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:23:28 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:23:28 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 2026-02-10 09:23:28 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:23:27.541816 End time: 2026-02-10 09:23:27.559576 2026-02-10 09:23:28 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:23:28 INFO imstat::::casa ########################################## 2026-02-10 09:23:28 INFO phaseshift::::casa ########################################## 2026-02-10 09:23:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:23:28 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 0.699877039rad' ) 2026-02-10 09:23:28 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:23:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:23:28 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:23:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:23:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:23:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:23:28 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:23:28 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:23:28 INFO MSTransformManager::open Select data 2026-02-10 09:23:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:23:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:23:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 0.699877039rad' successfully parsed 2026-02-10 09:23:33 INFO phaseshift::::casa Shift phase center 2026-02-10 09:23:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:23:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:23:27.572125 End time: 2026-02-10 09:23:34.739126 2026-02-10 09:23:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:23:35 INFO phaseshift::::casa ########################################## 2026-02-10 09:23:35 INFO tclean::::casa ########################################## 2026-02-10 09:23:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:23:35 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 ) 2026-02-10 09:23:35 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:23:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:23:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:23:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:23:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:23:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:23:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:23:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:23:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:23:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:23:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:23:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:23:37 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:23:37 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02653 2026-02-10 09:23:37 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:23:37 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:23:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:23:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:23:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:23:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:23:40 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:23:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:23:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:23:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:23:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:23:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:23:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:23:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:23:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:23:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:23:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:23:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:23:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:23:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374443277716637, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:23:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:23:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:23:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:23:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:23:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:23:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852561634033918, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:23:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:23:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:23:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:23:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:23:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:23:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:23:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:23:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:23:48 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:23:48 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'] 2026-02-10 09:23:51 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:23:34.799217 End time: 2026-02-10 09:23:50.834411 2026-02-10 09:23:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:23:51 INFO tclean::::casa ########################################## 2026-02-10 09:23:51 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:23:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:23:51 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) 2026-02-10 09:23:51 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:23:51 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:23:51 2026****** 2026-02-10 09:23:51 INFO ImageFitter::fit+ 2026-02-10 09:23:51 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:23:51 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:23:51 INFO ImageFitter::fit+ --- region: 2026-02-10 09:23:51 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:23:51 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:23:51 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:23:51 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:23:51 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:23:51 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:23:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:23:51 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) 2026-02-10 09:23:51 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:23:51 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:23:51 INFO imstat::::casa ########################################## 2026-02-10 09:23:51 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:23:51 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 ) 2026-02-10 09:23:51 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:23:51 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:23:51 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:23:51 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:23:51 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:23:51 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) 2026-02-10 09:23:51 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:23:51 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:23:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:23:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:23:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:23:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:23:51 INFO imstat:::: Values --- 2026-02-10 09:23:51 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:23:51 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:23:51 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:23:51 INFO imstat:::: -- minimum value [min]: -7.77898e-05 Jy/beam 2026-02-10 09:23:51 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:23:51 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:23:51 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:23:51 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-02-10 09:23:51 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:23:51 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:23:51 INFO imstat:::: Statistics --- 2026-02-10 09:23:51 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:23:51 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:23:51 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:23:51 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:23:51 INFO imstat:::: -- Median of the pixel values [median]: -1.86769e-05 Jy/beam 2026-02-10 09:23:51 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73662e-05 Jy/beam 2026-02-10 09:23:51 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-02-10 09:23:51 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-02-10 09:23:51 INFO imstat:::: -- Third quartile [q3]: 1.1187e-06 Jy/beam 2026-02-10 09:23:51 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:23:51 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:23:51 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:23:51 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:23:51 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:23:51 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:23:51 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 2026-02-10 09:23:51 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:23:50.913081 End time: 2026-02-10 09:23:50.940566 2026-02-10 09:23:51 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:23:51 INFO imstat::::casa ########################################## 2026-02-10 09:23:51 INFO phaseshift::::casa ########################################## 2026-02-10 09:23:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:23:51 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 +006d21m09.7433' ) 2026-02-10 09:23:51 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:23:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:23:51 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:23:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:23:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:23:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:23:51 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:23:51 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:23:51 INFO MSTransformManager::open Select data 2026-02-10 09:23:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:23:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:23:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 +006d21m09.7433' successfully parsed 2026-02-10 09:23:55 INFO phaseshift::::casa Shift phase center 2026-02-10 09:23:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:23:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:23:50.958907 End time: 2026-02-10 09:23:56.724061 2026-02-10 09:23:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:23:57 INFO phaseshift::::casa ########################################## 2026-02-10 09:23:57 INFO tclean::::casa ########################################## 2026-02-10 09:23:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:23:57 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 ) 2026-02-10 09:23:57 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:23:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:23:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:23:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:23:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:23:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:23:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:23:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:23:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:23:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:23:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:23:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:23:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:23:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02466 2026-02-10 09:23:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:23:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:23:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:24:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:24:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:24:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:24:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:24:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:24:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:24:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:24:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:24:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:24:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:24:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:24:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:24:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:24:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:24:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:24:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:24:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:24:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:24:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:24:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:24:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:24:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:24:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:24:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:24:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:24:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:24:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:24:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:24:06 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'] 2026-02-10 09:24:07 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:23:56.770247 End time: 2026-02-10 09:24:07.012581 2026-02-10 09:24:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:24:07 INFO tclean::::casa ########################################## 2026-02-10 09:24:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:24:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:24:07 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) 2026-02-10 09:24:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:24:07 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:24:07 2026****** 2026-02-10 09:24:07 INFO ImageFitter::fit+ 2026-02-10 09:24:07 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:24:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:24:07 INFO ImageFitter::fit+ --- region: 2026-02-10 09:24:07 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:24:07 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:24:07 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:24:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:24:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:24:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:24:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:24:07 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) 2026-02-10 09:24:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:24:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:24:07 INFO imstat::::casa ########################################## 2026-02-10 09:24:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:24:07 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 ) 2026-02-10 09:24:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:24:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:24:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:24:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:24:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:24:07 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) 2026-02-10 09:24:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:24:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:24:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:24:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:24:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:24:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:24:07 INFO imstat:::: Values --- 2026-02-10 09:24:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:24:07 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:24:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:24:07 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-02-10 09:24:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:24:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:24:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:24:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:24:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:24:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:24:07 INFO imstat:::: Statistics --- 2026-02-10 09:24:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:24:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:24:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:24:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:24:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-02-10 09:24:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-02-10 09:24:07 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-02-10 09:24:07 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-02-10 09:24:07 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-02-10 09:24:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:24:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:24:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:24:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:24:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:24:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:24:07 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 2026-02-10 09:24:07 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:24:07.072297 End time: 2026-02-10 09:24:07.094608 2026-02-10 09:24:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:24:07 INFO imstat::::casa ########################################## 2026-02-10 09:24:07 INFO phaseshift::::casa ########################################## 2026-02-10 09:24:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:24:07 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 00:25:24.6496' ) 2026-02-10 09:24:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:24:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:24:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:24:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:24:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:24:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:24:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:24:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:24:07 INFO MSTransformManager::open Select data 2026-02-10 09:24:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:24:11 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 ".". 2026-02-10 09:24:11 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 00:25:24.6496' successfully parsed 2026-02-10 09:24:11 INFO phaseshift::::casa Shift phase center 2026-02-10 09:24:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:24:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:24:07.109788 End time: 2026-02-10 09:24:12.198319 2026-02-10 09:24:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:24:12 INFO phaseshift::::casa ########################################## 2026-02-10 09:24:12 INFO tclean::::casa ########################################## 2026-02-10 09:24:12 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:24:12 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 ) 2026-02-10 09:24:12 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:24:12 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:24:12 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:24:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:24:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:24:12 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:24:12 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:24:12 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:24:12 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:24:12 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:24:12 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:24:12 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:24:14 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:24:14 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026531 2026-02-10 09:24:14 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:24:14 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:24:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:24:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:24:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:24:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:24:16 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:24:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:24:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:24:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:24:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:24:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:24:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:24:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:24:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:24:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:24:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:24:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:24:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:24:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:24:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:24:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:24:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:24:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:24:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:24:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:24:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:24:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:24:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:24:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:24:23 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:24:23 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'] 2026-02-10 09:24:24 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:24:12.251471 End time: 2026-02-10 09:24:24.266298 2026-02-10 09:24:24 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:24:24 INFO tclean::::casa ########################################## 2026-02-10 09:24:24 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:24:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:24:24 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) 2026-02-10 09:24:24 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:24:24 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:24:24 2026****** 2026-02-10 09:24:24 INFO ImageFitter::fit+ 2026-02-10 09:24:24 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:24:24 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:24:24 INFO ImageFitter::fit+ --- region: 2026-02-10 09:24:24 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:24:24 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:24:24 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:24:24 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:24:24 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:24:24 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:24:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:24:24 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) 2026-02-10 09:24:24 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:24:24 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:24:24 INFO imstat::::casa ########################################## 2026-02-10 09:24:24 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:24:24 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 ) 2026-02-10 09:24:24 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:24:24 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:24:24 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:24:24 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:24:24 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:24:24 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) 2026-02-10 09:24:24 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:24:24 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:24:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:24:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:24:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-02-10 09:24:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-02-10 09:24:24 INFO imstat:::: Values --- 2026-02-10 09:24:24 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:24:24 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:24:24 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:24:24 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-02-10 09:24:24 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:24:24 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:24:24 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:24:24 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:24:24 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:24:24 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:24:24 INFO imstat:::: Statistics --- 2026-02-10 09:24:24 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:24:24 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:24:24 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:24:24 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:24:24 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-02-10 09:24:24 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-02-10 09:24:24 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-02-10 09:24:24 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-02-10 09:24:24 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-02-10 09:24:24 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:24:24 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:24:24 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:24:24 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:24:24 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:24:24 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:24:24 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 2026-02-10 09:24:24 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:24:24.344801 End time: 2026-02-10 09:24:24.371768 2026-02-10 09:24:24 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:24:24 INFO imstat::::casa ########################################## 2026-02-10 09:24:24 INFO phaseshift::::casa ########################################## 2026-02-10 09:24:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:24:24 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 6.352706472deg' ) 2026-02-10 09:24:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:24:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:24:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:24:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:24:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:24:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:24:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:24:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:24:24 INFO MSTransformManager::open Select data 2026-02-10 09:24:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:24:28 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:24:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 6.352706472deg' successfully parsed 2026-02-10 09:24:28 INFO phaseshift::::casa Shift phase center 2026-02-10 09:24:29 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:24:29 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:24:24.389070 End time: 2026-02-10 09:24:29.167268 2026-02-10 09:24:29 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:24:29 INFO phaseshift::::casa ########################################## 2026-02-10 09:24:29 INFO tclean::::casa ########################################## 2026-02-10 09:24:29 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:24:29 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 ) 2026-02-10 09:24:29 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:24:29 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:24:29 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:24:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:24:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:24:29 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:24:29 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:24:29 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:24:29 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:24:29 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:24:29 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:24:29 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:24:31 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:24:31 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028335 2026-02-10 09:24:31 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:24:31 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:24:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:24:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:24:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:24:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:24:33 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:24:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:24:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:24:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:24:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:24:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:24:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:24:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:24:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:24:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:24:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:24:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:24:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:24:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:24:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:24:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:24:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:24:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:24:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:24:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:24:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:24:38 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:24:38 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:24:38 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:24:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:24:40 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'] 2026-02-10 09:24:42 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:24:29.222326 End time: 2026-02-10 09:24:41.857732 2026-02-10 09:24:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:24:42 INFO tclean::::casa ########################################## 2026-02-10 09:24:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:24:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:24:42 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) 2026-02-10 09:24:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:24:42 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:24:42 2026****** 2026-02-10 09:24:42 INFO ImageFitter::fit+ 2026-02-10 09:24:42 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:24:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:24:42 INFO ImageFitter::fit+ --- region: 2026-02-10 09:24:42 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:24:42 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:24:42 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:24:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:24:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:24:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:24:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:24:42 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) 2026-02-10 09:24:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:24:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:24:42 INFO imstat::::casa ########################################## 2026-02-10 09:24:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:24:42 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 ) 2026-02-10 09:24:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:24:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:24:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:24:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:24:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:24:42 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) 2026-02-10 09:24:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:24:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:24:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:24:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:24:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:24:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:24:42 INFO imstat:::: Values --- 2026-02-10 09:24:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:24:42 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:24:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:24:42 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-02-10 09:24:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:24:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:24:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:24:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:24:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:24:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:24:42 INFO imstat:::: Statistics --- 2026-02-10 09:24:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:24:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:24:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:24:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:24:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-02-10 09:24:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-02-10 09:24:42 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-02-10 09:24:42 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-02-10 09:24:42 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-02-10 09:24:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:24:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:24:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:24:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:24:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:24:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:24:42 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 2026-02-10 09:24:42 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:24:41.898614 End time: 2026-02-10 09:24:41.915263 2026-02-10 09:24:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:24:42 INFO imstat::::casa ########################################## 2026-02-10 09:24:42 INFO phaseshift::::casa ########################################## 2026-02-10 09:24:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:24:42 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 05h00m21.5326 0.110875644rad' ) 2026-02-10 09:24:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:24:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:24:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:24:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:24:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:24:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:24:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:24:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:24:42 INFO MSTransformManager::open Select data 2026-02-10 09:24:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:24:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:24:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 0.110875644rad' successfully parsed 2026-02-10 09:24:44 INFO phaseshift::::casa Shift phase center 2026-02-10 09:24:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:24:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:24:41.927722 End time: 2026-02-10 09:24:44.717323 2026-02-10 09:24:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:24:45 INFO phaseshift::::casa ########################################## 2026-02-10 09:24:45 INFO tclean::::casa ########################################## 2026-02-10 09:24:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:24:45 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 ) 2026-02-10 09:24:45 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:24:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:24:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:24:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:24:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:24:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:24:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:24:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:24:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:24:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:24:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:24:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:24:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:24:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028481 2026-02-10 09:24:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:24:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:24:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:24:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:24:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:24:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:24:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:24:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:24:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:24:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:24:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:24:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:24:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:24:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:24:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:24:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:24:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:24:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:24:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:24:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:24:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:24:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:24:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:24:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:24:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:24:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:24:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:24:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:24:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:24:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:24:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:24:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:24:57 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'] 2026-02-10 09:24:58 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:24:44.756885 End time: 2026-02-10 09:24:58.176936 2026-02-10 09:24:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:24:58 INFO tclean::::casa ########################################## 2026-02-10 09:24:58 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:24:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:24:58 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) 2026-02-10 09:24:58 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:24:58 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:24:58 2026****** 2026-02-10 09:24:58 INFO ImageFitter::fit+ 2026-02-10 09:24:58 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:24:58 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:24:58 INFO ImageFitter::fit+ --- region: 2026-02-10 09:24:58 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:24:58 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:24:58 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:24:58 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:24:58 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:24:58 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:24:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:24:58 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) 2026-02-10 09:24:58 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:24:58 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:24:58 INFO imstat::::casa ########################################## 2026-02-10 09:24:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:24:58 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 ) 2026-02-10 09:24:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:24:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:24:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:24:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:24:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:24:58 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:24:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:24:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:24:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:24:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:24:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:24:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:24:58 INFO imstat:::: Values --- 2026-02-10 09:24:58 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:24:58 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:24:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:24:58 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-02-10 09:24:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:24:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:24:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:24:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-02-10 09:24:58 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:24:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:24:58 INFO imstat:::: Statistics --- 2026-02-10 09:24:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:24:58 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:24:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:24:58 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:24:58 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-02-10 09:24:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-02-10 09:24:58 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-02-10 09:24:58 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-02-10 09:24:58 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-02-10 09:24:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:24:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:24:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:24:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:24:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:24:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:24:58 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 2026-02-10 09:24:58 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:24:58.251983 End time: 2026-02-10 09:24:58.286346 2026-02-10 09:24:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:24:58 INFO imstat::::casa ########################################## 2026-02-10 09:24:58 INFO phaseshift::::casa ########################################## 2026-02-10 09:24:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:24:58 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 +006d21m09.7433' ) 2026-02-10 09:24:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:24:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:24:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:24:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:24:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:24:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:24:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:24:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:24:58 INFO MSTransformManager::open Select data 2026-02-10 09:24:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:25:01 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:25:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 +006d21m09.7433' successfully parsed 2026-02-10 09:25:01 INFO phaseshift::::casa Shift phase center 2026-02-10 09:25:02 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:25:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:24:58.304567 End time: 2026-02-10 09:25:02.283852 2026-02-10 09:25:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:25:02 INFO phaseshift::::casa ########################################## 2026-02-10 09:25:02 INFO tclean::::casa ########################################## 2026-02-10 09:25:02 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:25:02 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 ) 2026-02-10 09:25:02 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:25:02 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:25:02 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:25:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:25:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:25:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:25:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:25:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:25:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:25:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:25:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:25:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:25:04 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:25:04 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020163 2026-02-10 09:25:04 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:25:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:25:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:25:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:25:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:25:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:25:06 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:25:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:25:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:25:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:25:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:25:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:25:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:25:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:25:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:25:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:25:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:25:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:25:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:25:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:25:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:25:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:25:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:25:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:25:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:25:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:25:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:25:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:25:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:25:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:25:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:25:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:25:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:25:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:25:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:25:14 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'] 2026-02-10 09:25:15 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:25:02.343715 End time: 2026-02-10 09:25:15.140151 2026-02-10 09:25:15 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:25:15 INFO tclean::::casa ########################################## 2026-02-10 09:25:15 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:25:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:25:15 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) 2026-02-10 09:25:15 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:25:15 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:25:15 2026****** 2026-02-10 09:25:15 INFO ImageFitter::fit+ 2026-02-10 09:25:15 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:25:15 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:25:15 INFO ImageFitter::fit+ --- region: 2026-02-10 09:25:15 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:25:15 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:25:15 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:25:15 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:25:15 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:25:15 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:25:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:25:15 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) 2026-02-10 09:25:15 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:25:15 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:25:15 INFO imstat::::casa ########################################## 2026-02-10 09:25:15 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:25:15 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 ) 2026-02-10 09:25:15 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:25:15 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:25:15 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:25:15 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:25:15 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:25:15 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) 2026-02-10 09:25:15 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:25:15 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:25:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:25:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:25:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:25:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:25:15 INFO imstat:::: Values --- 2026-02-10 09:25:15 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:25:15 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:25:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:25:15 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-02-10 09:25:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:25:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:25:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:25:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:25:15 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:25:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:25:15 INFO imstat:::: Statistics --- 2026-02-10 09:25:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:25:15 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:25:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:25:15 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:25:15 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-02-10 09:25:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-02-10 09:25:15 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-02-10 09:25:15 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-02-10 09:25:15 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-02-10 09:25:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:25:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:25:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:25:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:25:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:25:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:25:15 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 2026-02-10 09:25:15 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:25:15.221724 End time: 2026-02-10 09:25:15.257232 2026-02-10 09:25:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:25:15 INFO imstat::::casa ########################################## 2026-02-10 09:25:15 INFO phaseshift::::casa ########################################## 2026-02-10 09:25:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:25:15 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 00:25:24.6496' ) 2026-02-10 09:25:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:25:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:25:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:25:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:25:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:25:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:25:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:25:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:25:15 INFO MSTransformManager::open Select data 2026-02-10 09:25:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:25:19 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 ".". 2026-02-10 09:25:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 00:25:24.6496' successfully parsed 2026-02-10 09:25:19 INFO phaseshift::::casa Shift phase center 2026-02-10 09:25:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:25:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:25:15.273844 End time: 2026-02-10 09:25:19.862370 2026-02-10 09:25:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:25:20 INFO phaseshift::::casa ########################################## 2026-02-10 09:25:20 INFO tclean::::casa ########################################## 2026-02-10 09:25:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:25:20 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 ) 2026-02-10 09:25:20 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:25:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:25:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:25:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:25:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:25:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:25:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:25:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:25:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:25:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:25:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:25:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:25:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:25:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.014302 2026-02-10 09:25:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:25:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:25:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:25:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:25:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:25:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:25:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:25:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:25:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:25:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:25:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:25:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:25:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:25:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:25:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:25:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:25:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:25:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:25:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:25:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:25:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:25:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:25:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:25:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:25:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:25:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:25:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:25:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:25:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:25:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:25:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:25:31 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:25:31 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:25:31 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:25:32 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:25:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-02-10 09:25:35 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:25:19.908075 End time: 2026-02-10 09:25:35.221448 2026-02-10 09:25:35 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:25:35 INFO tclean::::casa ########################################## 2026-02-10 09:25:35 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:25:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:25:35 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) 2026-02-10 09:25:35 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:25:35 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:25:35 2026****** 2026-02-10 09:25:35 INFO ImageFitter::fit+ 2026-02-10 09:25:35 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:25:35 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:25:35 INFO ImageFitter::fit+ --- region: 2026-02-10 09:25:35 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:25:35 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:25:35 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:25:35 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:25:35 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:25:35 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:25:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:25:35 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) 2026-02-10 09:25:35 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:25:35 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:25:35 INFO imstat::::casa ########################################## 2026-02-10 09:25:35 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:25:35 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 ) 2026-02-10 09:25:35 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:25:35 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:25:35 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:25:35 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:25:35 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:25:35 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) 2026-02-10 09:25:35 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:25:35 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:25:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:25:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:25:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-02-10 09:25:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-02-10 09:25:35 INFO imstat:::: Values --- 2026-02-10 09:25:35 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:25:35 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:25:35 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:25:35 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-02-10 09:25:35 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:25:35 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:25:35 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:25:35 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:25:35 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:25:35 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:25:35 INFO imstat:::: Statistics --- 2026-02-10 09:25:35 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:25:35 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:25:35 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:25:35 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:25:35 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-02-10 09:25:35 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-02-10 09:25:35 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-02-10 09:25:35 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-02-10 09:25:35 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-02-10 09:25:35 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:25:35 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:25:35 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:25:35 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:25:35 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:25:35 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:25:35 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 2026-02-10 09:25:35 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:25:35.314637 End time: 2026-02-10 09:25:35.349742 2026-02-10 09:25:35 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:25:35 INFO imstat::::casa ########################################## 2026-02-10 09:25:35 INFO phaseshift::::casa ########################################## 2026-02-10 09:25:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:25:35 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 05:00:21.5326 6.352706472deg' ) 2026-02-10 09:25:35 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:25:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:25:35 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:25:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:25:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:25:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:25:35 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:25:35 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:25:35 INFO MSTransformManager::open Select data 2026-02-10 09:25:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:25:41 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:25:41 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 6.352706472deg' successfully parsed 2026-02-10 09:25:41 INFO phaseshift::::casa Shift phase center 2026-02-10 09:25:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:25:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:25:35.371775 End time: 2026-02-10 09:25:42.492188 2026-02-10 09:25:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:25:42 INFO phaseshift::::casa ########################################## 2026-02-10 09:25:43 INFO tclean::::casa ########################################## 2026-02-10 09:25:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:25:43 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 ) 2026-02-10 09:25:43 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:25:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:25:43 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:25:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:25:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:25:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:25:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:25:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:25:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:25:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:25:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:25:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:25:45 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:25:45 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026077 2026-02-10 09:25:45 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:25:45 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:25:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:25:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:25:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:25:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:25:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:25:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:25:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:25:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:25:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:25:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:25:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:25:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:25:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:25:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:25:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:25:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:25:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:25:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:25:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:25:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:25:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:25:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:25:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:25:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:25:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:26:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:26:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:26:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:26:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:26:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:26:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:26:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:26:02 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:26:02 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'] 2026-02-10 09:26:03 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:25:42.551145 End time: 2026-02-10 09:26:02.825130 2026-02-10 09:26:03 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:26:03 INFO tclean::::casa ########################################## 2026-02-10 09:26:03 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:26:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:26:03 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) 2026-02-10 09:26:03 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:26:03 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:26:03 2026****** 2026-02-10 09:26:03 INFO ImageFitter::fit+ 2026-02-10 09:26:03 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:26:03 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:26:03 INFO ImageFitter::fit+ --- region: 2026-02-10 09:26:03 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:26:03 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:26:03 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:26:03 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:26:03 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:26:03 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:26:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:26:03 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) 2026-02-10 09:26:03 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:26:03 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:26:03 INFO imstat::::casa ########################################## 2026-02-10 09:26:03 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:26:03 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 ) 2026-02-10 09:26:03 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:26:03 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:26:03 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:26:03 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:26:03 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:26:03 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:26:03 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:26:03 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:26:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:26:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:26:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:26:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:26:03 INFO imstat:::: Values --- 2026-02-10 09:26:03 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:26:03 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:26:03 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:26:03 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-02-10 09:26:03 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:26:03 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:26:03 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:26:03 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:26:03 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:26:03 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:26:03 INFO imstat:::: Statistics --- 2026-02-10 09:26:03 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:26:03 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:26:03 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:26:03 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:26:03 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-02-10 09:26:03 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-02-10 09:26:03 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-02-10 09:26:03 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-02-10 09:26:03 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-02-10 09:26:03 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:26:03 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:26:03 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:26:03 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:26:03 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:26:03 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:26:03 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 2026-02-10 09:26:03 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:26:02.905440 End time: 2026-02-10 09:26:02.932499 2026-02-10 09:26:03 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:26:03 INFO imstat::::casa ########################################## 2026-02-10 09:26:03 INFO phaseshift::::casa ########################################## 2026-02-10 09:26:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:26:03 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 0.110875644rad' ) 2026-02-10 09:26:03 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:26:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:26:03 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:26:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:26:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:26:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:26:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:26:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:26:03 INFO MSTransformManager::open Select data 2026-02-10 09:26:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:26:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:26:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 0.110875644rad' successfully parsed 2026-02-10 09:26:07 INFO phaseshift::::casa Shift phase center 2026-02-10 09:26:09 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:26:09 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:26:02.962742 End time: 2026-02-10 09:26:08.798067 2026-02-10 09:26:09 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:26:09 INFO phaseshift::::casa ########################################## 2026-02-10 09:26:09 INFO tclean::::casa ########################################## 2026-02-10 09:26:09 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:26:09 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 ) 2026-02-10 09:26:09 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:26:09 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:26:09 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:26:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:26:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:26:09 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:26:09 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:26:09 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:26:09 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:26:09 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:26:09 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:26:09 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:26:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:26:11 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022687 2026-02-10 09:26:11 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:26:11 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:26:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:26:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:26:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:26:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:26:14 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:26:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:26:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:26:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:26:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:26:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:26:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:26:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:26:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:26:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:26:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:26:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:26:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:26:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:26:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:26:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:26:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:26:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:26:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:26:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:26:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:26:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:26:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:26:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:26:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:26:21 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:26:21 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:26:21 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:26:22 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:26:23 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'] 2026-02-10 09:26:25 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:26:08.858167 End time: 2026-02-10 09:26:25.259246 2026-02-10 09:26:25 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:26:25 INFO tclean::::casa ########################################## 2026-02-10 09:26:25 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:26:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:26:25 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:26:25 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:26:25 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:26:25 2026****** 2026-02-10 09:26:25 INFO ImageFitter::fit+ 2026-02-10 09:26:25 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:26:25 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:26:25 INFO ImageFitter::fit+ --- region: 2026-02-10 09:26:25 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:26:25 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:26:25 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:26:25 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:26:25 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:26:25 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:26:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:26:25 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:26:25 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:26:25 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:26:25 INFO imstat::::casa ########################################## 2026-02-10 09:26:25 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:26:25 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 ) 2026-02-10 09:26:25 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:26:25 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:26:25 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:26:25 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:26:25 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:26:25 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:26:25 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:26:25 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:26:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:26:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:26:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:26:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:26:25 INFO imstat:::: Values --- 2026-02-10 09:26:25 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:26:25 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:26:25 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:26:25 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-02-10 09:26:25 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:26:25 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:26:25 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:26:25 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-02-10 09:26:25 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:26:25 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:26:25 INFO imstat:::: Statistics --- 2026-02-10 09:26:25 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:26:25 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:26:25 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:26:25 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:26:25 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-02-10 09:26:25 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-02-10 09:26:25 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-02-10 09:26:25 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-02-10 09:26:25 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-02-10 09:26:25 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:26:25 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:26:25 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:26:25 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:26:25 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:26:25 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:26:25 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778491e-05 4.999996e+00 2026-02-10 09:26:25 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:26:25.344027 End time: 2026-02-10 09:26:25.373808 2026-02-10 09:26:25 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:26:25 INFO imstat::::casa ########################################## 2026-02-10 09:26:25 INFO phaseshift::::casa ########################################## 2026-02-10 09:26:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:26:25 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg +006d21m09.7433' ) 2026-02-10 09:26:25 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:26:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:26:25 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:26:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:26:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:26:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:26:25 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:26:25 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:26:25 INFO MSTransformManager::open Select data 2026-02-10 09:26:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:26:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:26:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg +006d21m09.7433' successfully parsed 2026-02-10 09:26:30 INFO phaseshift::::casa Shift phase center 2026-02-10 09:26:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:26:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:26:25.392639 End time: 2026-02-10 09:26:31.671329 2026-02-10 09:26:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:26:32 INFO phaseshift::::casa ########################################## 2026-02-10 09:26:32 INFO tclean::::casa ########################################## 2026-02-10 09:26:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:26:32 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 ) 2026-02-10 09:26:32 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:26:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:26:32 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:26:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:26:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:26:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:26:32 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:26:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:26:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:26:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:26:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:26:32 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:26:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:26:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028479 2026-02-10 09:26:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:26:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:26:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:26:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:26:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:26:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:26:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:26:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:26:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:26:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:26:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:26:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:26:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:26:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:26:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:26:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:26:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:26:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:26:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:26:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:26:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:26:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:26:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:26:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:26:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:26:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:26:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:26:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:26:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:26:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:26:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:26:50 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:26:50 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:26:50 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:26:52 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:26:53 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'] 2026-02-10 09:26:55 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:26:31.728186 End time: 2026-02-10 09:26:55.254883 2026-02-10 09:26:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:26:55 INFO tclean::::casa ########################################## 2026-02-10 09:26:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:26:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:26:55 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) 2026-02-10 09:26:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:26:55 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:26:55 2026****** 2026-02-10 09:26:55 INFO ImageFitter::fit+ 2026-02-10 09:26:55 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:26:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:26:55 INFO ImageFitter::fit+ --- region: 2026-02-10 09:26:55 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:26:55 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:26:55 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:26:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:26:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:26:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:26:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:26:55 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) 2026-02-10 09:26:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116867 Jy 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126483 Jy 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:26:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:26:55 INFO imstat::::casa ########################################## 2026-02-10 09:26:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:26:55 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 ) 2026-02-10 09:26:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:26:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:26:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:26:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:26:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:26:55 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:26:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:26:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:26:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:26:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:26:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:26:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:26:55 INFO imstat:::: Values --- 2026-02-10 09:26:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:26:55 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:26:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:26:55 INFO imstat:::: -- minimum value [min]: -7.77768e-05 Jy/beam 2026-02-10 09:26:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:26:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:26:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:26:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:26:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:26:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:26:55 INFO imstat:::: Statistics --- 2026-02-10 09:26:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:26:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:26:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:26:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:26:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-02-10 09:26:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73609e-05 Jy/beam 2026-02-10 09:26:55 INFO imstat:::: -- IQR [quartile]: 3.56013e-05 Jy/beam 2026-02-10 09:26:55 INFO imstat:::: -- First quartile [q1]: -3.4507e-05 Jy/beam 2026-02-10 09:26:55 INFO imstat:::: -- Third quartile [q3]: 1.09435e-06 Jy/beam 2026-02-10 09:26:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:26:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:26:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:26:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:26:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:26:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:26:55 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 2026-02-10 09:26:55 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:26:55.341359 End time: 2026-02-10 09:26:55.370903 2026-02-10 09:26:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:26:55 INFO imstat::::casa ########################################## 2026-02-10 09:26:55 INFO phaseshift::::casa ########################################## 2026-02-10 09:26:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:26:55 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 00:25:24.6496' ) 2026-02-10 09:26:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:26:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:26:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:26:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:26:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:26:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:26:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:26:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:26:55 INFO MSTransformManager::open Select data 2026-02-10 09:26:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:27:01 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 ".". 2026-02-10 09:27:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 00:25:24.6496' successfully parsed 2026-02-10 09:27:01 INFO phaseshift::::casa Shift phase center 2026-02-10 09:27:02 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:27:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:26:55.389195 End time: 2026-02-10 09:27:02.560733 2026-02-10 09:27:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:27:03 INFO phaseshift::::casa ########################################## 2026-02-10 09:27:03 INFO tclean::::casa ########################################## 2026-02-10 09:27:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:27:03 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 ) 2026-02-10 09:27:03 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:27:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:27:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:27:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:27:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:27:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:27:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:27:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:27:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:27:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:27:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:27:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:27:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:27:05 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024714 2026-02-10 09:27:05 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:27:05 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:27:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:27:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:27:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:27:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:27:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:27:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:27:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:27:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:27:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:27:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:27:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:27:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:27:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:27:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:27:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:27:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:27:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:27:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:27:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:27:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:27:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:27:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:27:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:27:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:27:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:27:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:27:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:27:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:27:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:27:21 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:27:21 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:27:21 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:27:22 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:27:23 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'] 2026-02-10 09:27:25 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:27:02.616271 End time: 2026-02-10 09:27:25.297480 2026-02-10 09:27:25 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:27:25 INFO tclean::::casa ########################################## 2026-02-10 09:27:25 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:27:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:27:25 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:27:25 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:27:25 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:27:25 2026****** 2026-02-10 09:27:25 INFO ImageFitter::fit+ 2026-02-10 09:27:25 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:27:25 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:27:25 INFO ImageFitter::fit+ --- region: 2026-02-10 09:27:25 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:27:25 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:27:25 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:27:25 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:27:25 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:27:25 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:27:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:27:25 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:27:25 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116903 Jy 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126517 Jy 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:27:25 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:27:25 INFO imstat::::casa ########################################## 2026-02-10 09:27:25 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:27:25 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 ) 2026-02-10 09:27:25 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:27:25 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:27:25 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:27:25 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:27:25 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:27:25 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) 2026-02-10 09:27:25 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:27:25 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:27:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:27:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:27:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-02-10 09:27:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-02-10 09:27:25 INFO imstat:::: Values --- 2026-02-10 09:27:25 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:27:25 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:27:25 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:27:25 INFO imstat:::: -- minimum value [min]: -7.78731e-05 Jy/beam 2026-02-10 09:27:25 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:27:25 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:27:25 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:27:25 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:27:25 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:27:25 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:27:25 INFO imstat:::: Statistics --- 2026-02-10 09:27:25 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:27:25 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:27:25 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:27:25 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:27:25 INFO imstat:::: -- Median of the pixel values [median]: -1.86503e-05 Jy/beam 2026-02-10 09:27:25 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73798e-05 Jy/beam 2026-02-10 09:27:25 INFO imstat:::: -- IQR [quartile]: 3.56966e-05 Jy/beam 2026-02-10 09:27:25 INFO imstat:::: -- First quartile [q1]: -3.45352e-05 Jy/beam 2026-02-10 09:27:25 INFO imstat:::: -- Third quartile [q3]: 1.16146e-06 Jy/beam 2026-02-10 09:27:25 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:27:25 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:27:25 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:27:25 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:27:25 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:27:25 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:27:25 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 2026-02-10 09:27:25 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:27:25.386053 End time: 2026-02-10 09:27:25.414902 2026-02-10 09:27:25 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:27:25 INFO imstat::::casa ########################################## 2026-02-10 09:27:25 INFO phaseshift::::casa ########################################## 2026-02-10 09:27:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:27:25 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 6.352706472deg' ) 2026-02-10 09:27:25 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:27:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:27:25 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:27:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:27:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:27:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:27:25 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:27:25 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:27:25 INFO MSTransformManager::open Select data 2026-02-10 09:27:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:27:31 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:27:31 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 6.352706472deg' successfully parsed 2026-02-10 09:27:31 INFO phaseshift::::casa Shift phase center 2026-02-10 09:27:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:27:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:27:25.433363 End time: 2026-02-10 09:27:32.336107 2026-02-10 09:27:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:27:32 INFO phaseshift::::casa ########################################## 2026-02-10 09:27:32 INFO tclean::::casa ########################################## 2026-02-10 09:27:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:27:32 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 ) 2026-02-10 09:27:32 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:27:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:27:32 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:27:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:27:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:27:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:27:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:27:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:27:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:27:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:27:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:27:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:27:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:27:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028833 2026-02-10 09:27:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:27:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:27:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:27:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:27:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:27:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:27:39 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:27:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:27:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:27:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:27:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:27:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:27:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:27:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:27:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:27:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:27:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:27:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:27:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:27:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:27:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:27:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:27:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:27:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:27:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:27:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:27:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:27:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:27:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:27:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:27:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:27:52 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:27:52 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:27:52 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:27:53 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:27:54 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'] 2026-02-10 09:27:58 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:27:32.395943 End time: 2026-02-10 09:27:57.791785 2026-02-10 09:27:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:27:58 INFO tclean::::casa ########################################## 2026-02-10 09:27:58 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:27:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:27:58 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) 2026-02-10 09:27:58 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:27:58 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:27:58 2026****** 2026-02-10 09:27:58 INFO ImageFitter::fit+ 2026-02-10 09:27:58 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:27:58 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:27:58 INFO ImageFitter::fit+ --- region: 2026-02-10 09:27:58 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:27:58 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:27:58 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:27:58 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:27:58 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:27:58 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:27:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:27:58 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) 2026-02-10 09:27:58 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011687 Jy 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:27:58 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:27:58 INFO imstat::::casa ########################################## 2026-02-10 09:27:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:27:58 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 ) 2026-02-10 09:27:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:27:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:27:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:27:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:27:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:27:58 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:27:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:27:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:27:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:27:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:27:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:27:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:27:58 INFO imstat:::: Values --- 2026-02-10 09:27:58 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:27:58 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:27:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:27:58 INFO imstat:::: -- minimum value [min]: -7.77771e-05 Jy/beam 2026-02-10 09:27:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:27:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:27:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:27:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:27:58 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:27:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:27:58 INFO imstat:::: Statistics --- 2026-02-10 09:27:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:27:58 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:27:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:27:58 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:27:58 INFO imstat:::: -- Median of the pixel values [median]: -1.86715e-05 Jy/beam 2026-02-10 09:27:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73619e-05 Jy/beam 2026-02-10 09:27:58 INFO imstat:::: -- IQR [quartile]: 3.56021e-05 Jy/beam 2026-02-10 09:27:58 INFO imstat:::: -- First quartile [q1]: -3.45061e-05 Jy/beam 2026-02-10 09:27:58 INFO imstat:::: -- Third quartile [q3]: 1.09605e-06 Jy/beam 2026-02-10 09:27:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:27:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:27:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:27:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:27:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:27:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:27:58 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 2026-02-10 09:27:58 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:27:57.873715 End time: 2026-02-10 09:27:57.912432 2026-02-10 09:27:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:27:58 INFO imstat::::casa ########################################## 2026-02-10 09:27:58 INFO phaseshift::::casa ########################################## 2026-02-10 09:27:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:27:58 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 0.110875644rad' ) 2026-02-10 09:27:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:27:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:27:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:27:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:27:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:27:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:27:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:27:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:27:58 INFO MSTransformManager::open Select data 2026-02-10 09:27:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:28:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:28:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 0.110875644rad' successfully parsed 2026-02-10 09:28:08 INFO phaseshift::::casa Shift phase center 2026-02-10 09:28:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:28:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:27:57.929312 End time: 2026-02-10 09:28:09.840935 2026-02-10 09:28:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:28:10 INFO phaseshift::::casa ########################################## 2026-02-10 09:28:10 INFO tclean::::casa ########################################## 2026-02-10 09:28:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:28:10 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:28:10 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:28:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:28:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:28:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:28:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:28:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:28:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:28:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:28:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:28:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:28:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:28:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:28:14 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:28:14 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028701 2026-02-10 09:28:14 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:28:14 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:28:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:28:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:28:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:28:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:28:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:28:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:28:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:28:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:28:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:28:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:28:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:28:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:28:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:28:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:28:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:28:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:28:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:28:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:28:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:28:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:28:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:28:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:28:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:28:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:28:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:28:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:28:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:28:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:28:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:28:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:28:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:28:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:28:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:28:34 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'] 2026-02-10 09:28:35 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:28:09.900229 End time: 2026-02-10 09:28:34.915457 2026-02-10 09:28:35 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:28:35 INFO tclean::::casa ########################################## 2026-02-10 09:28:35 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:28:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:28:35 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) 2026-02-10 09:28:35 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:28:35 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:28:35 2026****** 2026-02-10 09:28:35 INFO ImageFitter::fit+ 2026-02-10 09:28:35 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:28:35 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:28:35 INFO ImageFitter::fit+ --- region: 2026-02-10 09:28:35 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:28:35 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:28:35 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:28:35 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:28:35 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:28:35 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:28:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:28:35 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) 2026-02-10 09:28:35 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126482 Jy 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:28:35 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:28:35 INFO imstat::::casa ########################################## 2026-02-10 09:28:35 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:28:35 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 ) 2026-02-10 09:28:35 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:28:35 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:28:35 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:28:35 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:28:35 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:28:35 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) 2026-02-10 09:28:35 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:28:35 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:28:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:28:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:28:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:28:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:28:35 INFO imstat:::: Values --- 2026-02-10 09:28:35 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:28:35 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:28:35 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:28:35 INFO imstat:::: -- minimum value [min]: -7.77855e-05 Jy/beam 2026-02-10 09:28:35 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:28:35 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:28:35 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:28:35 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-02-10 09:28:35 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:28:35 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:28:35 INFO imstat:::: Statistics --- 2026-02-10 09:28:35 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:28:35 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:28:35 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:28:35 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:28:35 INFO imstat:::: -- Median of the pixel values [median]: -1.86732e-05 Jy/beam 2026-02-10 09:28:35 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73562e-05 Jy/beam 2026-02-10 09:28:35 INFO imstat:::: -- IQR [quartile]: 3.56008e-05 Jy/beam 2026-02-10 09:28:35 INFO imstat:::: -- First quartile [q1]: -3.45107e-05 Jy/beam 2026-02-10 09:28:35 INFO imstat:::: -- Third quartile [q3]: 1.09015e-06 Jy/beam 2026-02-10 09:28:35 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:28:35 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:28:35 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:28:35 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:28:35 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:28:35 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:28:35 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 2026-02-10 09:28:35 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:28:34.999621 End time: 2026-02-10 09:28:35.027676 2026-02-10 09:28:35 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:28:35 INFO imstat::::casa ########################################## 2026-02-10 09:28:35 INFO phaseshift::::casa ########################################## 2026-02-10 09:28:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:28:35 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 1.310562834rad +006d21m09.7433' ) 2026-02-10 09:28:35 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:28:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:28:35 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:28:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:28:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:28:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:28:35 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:28:35 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:28:35 INFO MSTransformManager::open Select data 2026-02-10 09:28:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:28:37 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:28:37 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad +006d21m09.7433' successfully parsed 2026-02-10 09:28:37 INFO phaseshift::::casa Shift phase center 2026-02-10 09:28:38 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:28:38 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:28:35.045109 End time: 2026-02-10 09:28:38.068566 2026-02-10 09:28:38 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:28:38 INFO phaseshift::::casa ########################################## 2026-02-10 09:28:38 INFO tclean::::casa ########################################## 2026-02-10 09:28:38 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:28:38 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:28:38 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:28:38 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:28:38 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:28:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:28:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:28:38 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:28:38 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:28:38 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:28:38 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:28:38 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:28:38 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:28:38 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:28:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:28:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027594 2026-02-10 09:28:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:28:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:28:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:28:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:28:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:28:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:28:43 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:28:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:28:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:28:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:28:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:28:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:28:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:28:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:28:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:28:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:28:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:28:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:28:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:28:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:28:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:28:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:28:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:28:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:28:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:28:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:28:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:28:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:28:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:28:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:28:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:28:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:28:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:28:49 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:28:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:28:50 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'] 2026-02-10 09:28:52 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:28:38.127212 End time: 2026-02-10 09:28:51.639191 2026-02-10 09:28:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:28:52 INFO tclean::::casa ########################################## 2026-02-10 09:28:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:28:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:28:52 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) 2026-02-10 09:28:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:28:52 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:28:52 2026****** 2026-02-10 09:28:52 INFO ImageFitter::fit+ 2026-02-10 09:28:52 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:28:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:28:52 INFO ImageFitter::fit+ --- region: 2026-02-10 09:28:52 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:28:52 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:28:52 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:28:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:28:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:28:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:28:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:28:52 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) 2026-02-10 09:28:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:28:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:28:52 INFO imstat::::casa ########################################## 2026-02-10 09:28:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:28:52 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 ) 2026-02-10 09:28:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:28:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:28:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:28:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:28:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:28:52 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:28:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:28:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:28:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:28:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:28:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:28:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:28:52 INFO imstat:::: Values --- 2026-02-10 09:28:52 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:28:52 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:28:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:28:52 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-02-10 09:28:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:28:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:28:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:28:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:28:52 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:28:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:28:52 INFO imstat:::: Statistics --- 2026-02-10 09:28:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:28:52 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:28:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:28:52 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:28:52 INFO imstat:::: -- Median of the pixel values [median]: -1.86669e-05 Jy/beam 2026-02-10 09:28:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73635e-05 Jy/beam 2026-02-10 09:28:52 INFO imstat:::: -- IQR [quartile]: 3.56081e-05 Jy/beam 2026-02-10 09:28:52 INFO imstat:::: -- First quartile [q1]: -3.45085e-05 Jy/beam 2026-02-10 09:28:52 INFO imstat:::: -- Third quartile [q3]: 1.09959e-06 Jy/beam 2026-02-10 09:28:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:28:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:28:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:28:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:28:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:28:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:28:52 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 2026-02-10 09:28:52 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:28:51.707728 End time: 2026-02-10 09:28:51.734389 2026-02-10 09:28:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:28:52 INFO imstat::::casa ########################################## 2026-02-10 09:28:52 INFO phaseshift::::casa ########################################## 2026-02-10 09:28:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:28:52 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 00:25:24.6496' ) 2026-02-10 09:28:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:28:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:28:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:28:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:28:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:28:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:28:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:28:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:28:52 INFO MSTransformManager::open Select data 2026-02-10 09:28:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:28:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-02-10 09:28:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 00:25:24.6496' successfully parsed 2026-02-10 09:28:55 INFO phaseshift::::casa Shift phase center 2026-02-10 09:28:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:28:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:28:51.751669 End time: 2026-02-10 09:28:55.705255 2026-02-10 09:28:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:28:56 INFO phaseshift::::casa ########################################## 2026-02-10 09:28:56 INFO tclean::::casa ########################################## 2026-02-10 09:28:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:28:56 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 ) 2026-02-10 09:28:56 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:28:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:28:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:28:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:28:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:28:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:28:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:28:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:28:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:28:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:28:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:28:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:28:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:28:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025077 2026-02-10 09:28:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:28:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:28:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:28:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:28:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:28:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:28:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:28:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:28:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:28:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:28:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:28:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:29:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:29:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:29:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:29:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:29:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:29:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:29:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:29:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:29:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:29:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:29:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:29:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:29:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:29:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:29:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:29:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:29:06 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:29:06 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:29:06 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:29:07 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:29:07 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'] 2026-02-10 09:29:09 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:28:55.762932 End time: 2026-02-10 09:29:08.704607 2026-02-10 09:29:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:29:09 INFO tclean::::casa ########################################## 2026-02-10 09:29:09 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:29:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:29:09 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) 2026-02-10 09:29:09 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:29:09 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:29:09 2026****** 2026-02-10 09:29:09 INFO ImageFitter::fit+ 2026-02-10 09:29:09 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:29:09 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:29:09 INFO ImageFitter::fit+ --- region: 2026-02-10 09:29:09 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:29:09 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:29:09 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:29:09 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:29:09 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:29:09 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:29:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:29:09 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) 2026-02-10 09:29:09 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116905 Jy 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000041 +/- 0.000777 arcsec 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- ra: 127.999941 +/- 0.000127 pixels 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- dec: 127.999954 +/- 0.000097 pixels 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:29:09 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:29:09 INFO imstat::::casa ########################################## 2026-02-10 09:29:09 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:29:09 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 ) 2026-02-10 09:29:09 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:29:09 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:29:09 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:29:09 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:29:09 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:29:09 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) 2026-02-10 09:29:09 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:29:09 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:29:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:29:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:29:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-02-10 09:29:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-02-10 09:29:09 INFO imstat:::: Values --- 2026-02-10 09:29:09 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:29:09 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:29:09 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:29:09 INFO imstat:::: -- minimum value [min]: -7.78774e-05 Jy/beam 2026-02-10 09:29:09 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:29:09 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:29:09 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:29:09 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:29:09 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:29:09 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:29:09 INFO imstat:::: Statistics --- 2026-02-10 09:29:09 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:29:09 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:29:09 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:29:09 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:29:09 INFO imstat:::: -- Median of the pixel values [median]: -1.86532e-05 Jy/beam 2026-02-10 09:29:09 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73779e-05 Jy/beam 2026-02-10 09:29:09 INFO imstat:::: -- IQR [quartile]: 3.5701e-05 Jy/beam 2026-02-10 09:29:09 INFO imstat:::: -- First quartile [q1]: -3.45356e-05 Jy/beam 2026-02-10 09:29:09 INFO imstat:::: -- Third quartile [q3]: 1.16544e-06 Jy/beam 2026-02-10 09:29:09 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:29:09 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:29:09 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:29:09 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:29:09 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:29:09 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:29:09 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787745e-05 4.999996e+00 2026-02-10 09:29:09 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:29:08.787547 End time: 2026-02-10 09:29:08.820682 2026-02-10 09:29:09 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:29:09 INFO imstat::::casa ########################################## 2026-02-10 09:29:09 INFO phaseshift::::casa ########################################## 2026-02-10 09:29:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:29:09 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 6.352706472deg' ) 2026-02-10 09:29:09 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:29:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:29:09 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:29:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:29:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:29:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:29:09 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:29:09 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:29:09 INFO MSTransformManager::open Select data 2026-02-10 09:29:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:29:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:29:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 6.352706472deg' successfully parsed 2026-02-10 09:29:13 INFO phaseshift::::casa Shift phase center 2026-02-10 09:29:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:29:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:29:08.838159 End time: 2026-02-10 09:29:13.990392 2026-02-10 09:29:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:29:14 INFO phaseshift::::casa ########################################## 2026-02-10 09:29:14 INFO tclean::::casa ########################################## 2026-02-10 09:29:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:29:14 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:29:14 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:29:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:29:14 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:29:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:29:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:29:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:29:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:29:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:29:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:29:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:29:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:29:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:29:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:29:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027287 2026-02-10 09:29:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:29:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:29:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:29:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:29:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:29:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:29:18 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:29:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:29:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:29:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:29:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:29:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:29:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:29:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:29:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:29:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:29:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:29:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:29:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:29:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:29:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:29:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:29:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:29:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:29:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:29:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:29:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:29:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:29:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:29:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:29:24 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:29:24 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'] 2026-02-10 09:29:27 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:29:14.040874 End time: 2026-02-10 09:29:27.183345 2026-02-10 09:29:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:29:27 INFO tclean::::casa ########################################## 2026-02-10 09:29:27 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:29:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:29:27 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:29:27 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:29:27 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:29:27 2026****** 2026-02-10 09:29:27 INFO ImageFitter::fit+ 2026-02-10 09:29:27 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:29:27 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:29:27 INFO ImageFitter::fit+ --- region: 2026-02-10 09:29:27 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:29:27 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:29:27 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:29:27 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:29:27 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:29:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:29:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:29:27 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) 2026-02-10 09:29:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:29:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:29:27 INFO imstat::::casa ########################################## 2026-02-10 09:29:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:29:27 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 ) 2026-02-10 09:29:27 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:29:27 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:29:27 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:29:27 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:29:27 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:29:27 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) 2026-02-10 09:29:27 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:29:27 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:29:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:29:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:29:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:29:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:29:27 INFO imstat:::: Values --- 2026-02-10 09:29:27 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:29:27 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:29:27 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:29:27 INFO imstat:::: -- minimum value [min]: -7.77798e-05 Jy/beam 2026-02-10 09:29:27 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:29:27 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:29:27 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:29:27 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:29:27 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:29:27 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:29:27 INFO imstat:::: Statistics --- 2026-02-10 09:29:27 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:29:27 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:29:27 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:29:27 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:29:27 INFO imstat:::: -- Median of the pixel values [median]: -1.86675e-05 Jy/beam 2026-02-10 09:29:27 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73645e-05 Jy/beam 2026-02-10 09:29:27 INFO imstat:::: -- IQR [quartile]: 3.56077e-05 Jy/beam 2026-02-10 09:29:27 INFO imstat:::: -- First quartile [q1]: -3.45073e-05 Jy/beam 2026-02-10 09:29:27 INFO imstat:::: -- Third quartile [q3]: 1.1004e-06 Jy/beam 2026-02-10 09:29:27 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:29:27 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:29:27 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:29:27 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:29:27 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:29:27 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:29:27 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 2026-02-10 09:29:27 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:29:27.256612 End time: 2026-02-10 09:29:27.285341 2026-02-10 09:29:27 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:29:27 INFO imstat::::casa ########################################## 2026-02-10 09:29:27 INFO phaseshift::::casa ########################################## 2026-02-10 09:29:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:29:27 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 0.110875644rad' ) 2026-02-10 09:29:27 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:29:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:29:27 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:29:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:29:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:29:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:29:27 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:29:27 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:29:27 INFO MSTransformManager::open Select data 2026-02-10 09:29:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:29:31 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:29:31 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 0.110875644rad' successfully parsed 2026-02-10 09:29:31 INFO phaseshift::::casa Shift phase center 2026-02-10 09:29:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:29:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:29:27.312890 End time: 2026-02-10 09:29:32.276975 2026-02-10 09:29:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:29:32 INFO phaseshift::::casa ########################################## 2026-02-10 09:29:32 INFO tclean::::casa ########################################## 2026-02-10 09:29:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:29:32 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 ) 2026-02-10 09:29:32 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:29:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:29:32 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:29:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:29:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:29:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:29:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:29:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:29:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:29:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:29:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:29:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:29:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:29:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.015999 2026-02-10 09:29:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:29:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:29:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:29:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:29:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:29:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:29:35 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:29:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:29:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:29:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:29:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:29:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:29:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:29:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:29:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:29:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:29:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:29:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:29:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:29:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:29:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:29:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:29:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:29:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:29:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:29:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:29:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:29:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:29:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:29:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:29:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:29:42 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-02-10 09:29:44 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:29:32.330752 End time: 2026-02-10 09:29:43.619206 2026-02-10 09:29:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:29:44 INFO tclean::::casa ########################################## 2026-02-10 09:29:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:29:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:29:44 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) 2026-02-10 09:29:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:29:44 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:29:44 2026****** 2026-02-10 09:29:44 INFO ImageFitter::fit+ 2026-02-10 09:29:44 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:29:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:29:44 INFO ImageFitter::fit+ --- region: 2026-02-10 09:29:44 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:29:44 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:29:44 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:29:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:29:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:29:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:29:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:29:44 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) 2026-02-10 09:29:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000002 +/- 0.000777 arcsec 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- ra: 128.000014 +/- 0.000127 pixels 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- dec: 127.999998 +/- 0.000097 pixels 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:29:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:29:44 INFO imstat::::casa ########################################## 2026-02-10 09:29:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:29:44 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 ) 2026-02-10 09:29:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:29:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:29:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:29:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:29:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:29:44 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) 2026-02-10 09:29:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:29:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:29:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:29:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:29:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:29:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:29:44 INFO imstat:::: Values --- 2026-02-10 09:29:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:29:44 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:29:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:29:44 INFO imstat:::: -- minimum value [min]: -7.77816e-05 Jy/beam 2026-02-10 09:29:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:29:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:29:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:29:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-02-10 09:29:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:29:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:29:44 INFO imstat:::: Statistics --- 2026-02-10 09:29:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:29:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:29:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:29:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:29:44 INFO imstat:::: -- Median of the pixel values [median]: -1.8676e-05 Jy/beam 2026-02-10 09:29:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73584e-05 Jy/beam 2026-02-10 09:29:44 INFO imstat:::: -- IQR [quartile]: 3.56038e-05 Jy/beam 2026-02-10 09:29:44 INFO imstat:::: -- First quartile [q1]: -3.45104e-05 Jy/beam 2026-02-10 09:29:44 INFO imstat:::: -- Third quartile [q3]: 1.09331e-06 Jy/beam 2026-02-10 09:29:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:29:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:29:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:29:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:29:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:29:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:29:44 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 2026-02-10 09:29:44 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:29:43.693068 End time: 2026-02-10 09:29:43.727043 2026-02-10 09:29:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:29:44 INFO imstat::::casa ########################################## 2026-02-10 09:29:44 INFO phaseshift::::casa ########################################## 2026-02-10 09:29:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:29:44 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 19h52m05.65239 39d58m05.8512' ) 2026-02-10 09:29:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:29:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:29:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:29:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:29:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:29:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:29:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:29:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:29:44 INFO MSTransformManager::open Select data 2026-02-10 09:29:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:29:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:29:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39d58m05.8512' successfully parsed 2026-02-10 09:29:47 INFO phaseshift::::casa Shift phase center 2026-02-10 09:29:47 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:29:47 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:29:43.752202 End time: 2026-02-10 09:29:47.479155 2026-02-10 09:29:47 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:29:47 INFO phaseshift::::casa ########################################## 2026-02-10 09:29:48 INFO tclean::::casa ########################################## 2026-02-10 09:29:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:29:48 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 ) 2026-02-10 09:29:48 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:29:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:29:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:29:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:29:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:29:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:29:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:29:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:29:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:29:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:29:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:29:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:29:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:29:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024192 2026-02-10 09:29:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:29:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:29:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:29:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:29:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:29:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:29:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:29:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:29:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:29:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:29:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:29:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:29:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:29:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:29:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:29:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:29:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:29:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:29:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:29:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:29:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:29:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:29:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:29:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:29:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:29:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:29:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:29:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:29:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:29:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:29:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:29:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:29:57 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'] 2026-02-10 09:29:58 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:29:47.539656 End time: 2026-02-10 09:29:58.233727 2026-02-10 09:29:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:29:58 INFO tclean::::casa ########################################## 2026-02-10 09:29:58 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:29:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:29:58 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) 2026-02-10 09:29:58 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:29:58 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:29:58 2026****** 2026-02-10 09:29:58 INFO ImageFitter::fit+ 2026-02-10 09:29:58 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:29:58 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:29:58 INFO ImageFitter::fit+ --- region: 2026-02-10 09:29:58 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:29:58 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:29:58 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:29:58 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:29:58 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:29:58 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:29:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:29:58 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) 2026-02-10 09:29:58 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:29:58 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:29:58 INFO imstat::::casa ########################################## 2026-02-10 09:29:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:29:58 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 ) 2026-02-10 09:29:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:29:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:29:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:29:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:29:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:29:58 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:29:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:29:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:29:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:29:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:29:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:29:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:29:58 INFO imstat:::: Values --- 2026-02-10 09:29:58 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:29:58 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:29:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:29:58 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-02-10 09:29:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:29:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:29:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:29:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:29:58 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:29:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:29:58 INFO imstat:::: Statistics --- 2026-02-10 09:29:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:29:58 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:29:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:29:58 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:29:58 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-02-10 09:29:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-02-10 09:29:58 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-02-10 09:29:58 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-02-10 09:29:58 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-02-10 09:29:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:29:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:29:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:29:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:29:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:29:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:29:58 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-02-10 09:29:58 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:29:58.313289 End time: 2026-02-10 09:29:58.340482 2026-02-10 09:29:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:29:58 INFO imstat::::casa ########################################## 2026-02-10 09:29:58 INFO phaseshift::::casa ########################################## 2026-02-10 09:29:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:29:58 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 02:39:52.3901' ) 2026-02-10 09:29:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:29:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:29:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:29:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:29:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:29:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:29:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:29:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:29:58 INFO MSTransformManager::open Select data 2026-02-10 09:29:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:30:01 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 ".". 2026-02-10 09:30:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 02:39:52.3901' successfully parsed 2026-02-10 09:30:01 INFO phaseshift::::casa Shift phase center 2026-02-10 09:30:02 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:30:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:29:58.358037 End time: 2026-02-10 09:30:01.858416 2026-02-10 09:30:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:30:02 INFO phaseshift::::casa ########################################## 2026-02-10 09:30:02 INFO tclean::::casa ########################################## 2026-02-10 09:30:02 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:30:02 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 ) 2026-02-10 09:30:02 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:30:02 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:30:02 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:30:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:30:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:30:02 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:30:02 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:30:02 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:30:02 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:30:02 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:30:02 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:30:02 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:30:03 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:30:03 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028267 2026-02-10 09:30:03 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:30:03 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:30:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:30:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:30:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:30:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:30:05 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:30:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:30:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:30:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:30:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:30:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:30:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:30:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:30:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:30:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:30:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:30:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:30:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:30:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:30:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:30:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:30:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:30:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:30:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:30:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:30:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:30:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:30:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:30:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:30:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:30:11 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:30:11 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:30:11 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:30:12 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:30:13 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-02-10 09:30:14 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:30:01.889441 End time: 2026-02-10 09:30:14.478006 2026-02-10 09:30:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:30:14 INFO tclean::::casa ########################################## 2026-02-10 09:30:15 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:30:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:30:15 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) 2026-02-10 09:30:15 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:30:15 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:30:15 2026****** 2026-02-10 09:30:15 INFO ImageFitter::fit+ 2026-02-10 09:30:15 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:30:15 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:30:15 INFO ImageFitter::fit+ --- region: 2026-02-10 09:30:15 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:30:15 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:30:15 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:30:15 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:30:15 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:30:15 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:30:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:30:15 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) 2026-02-10 09:30:15 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:30:15 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:30:15 INFO imstat::::casa ########################################## 2026-02-10 09:30:15 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:30:15 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 ) 2026-02-10 09:30:15 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:30:15 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:30:15 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:30:15 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:30:15 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:30:15 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) 2026-02-10 09:30:15 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:30:15 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:30:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:30:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:30:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-02-10 09:30:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-02-10 09:30:15 INFO imstat:::: Values --- 2026-02-10 09:30:15 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:30:15 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:30:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:30:15 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-02-10 09:30:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:30:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:30:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:30:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:30:15 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:30:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:30:15 INFO imstat:::: Statistics --- 2026-02-10 09:30:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:30:15 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:30:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:30:15 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:30:15 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-02-10 09:30:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-02-10 09:30:15 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-02-10 09:30:15 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-02-10 09:30:15 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-02-10 09:30:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:30:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:30:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:30:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:30:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:30:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:30:15 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 2026-02-10 09:30:15 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:30:14.557933 End time: 2026-02-10 09:30:14.585536 2026-02-10 09:30:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:30:15 INFO imstat::::casa ########################################## 2026-02-10 09:30:15 INFO phaseshift::::casa ########################################## 2026-02-10 09:30:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:30:15 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39.968292000deg' ) 2026-02-10 09:30:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:30:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:30:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:30:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:30:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:30:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:30:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:30:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:30:15 INFO MSTransformManager::open Select data 2026-02-10 09:30:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:30:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:30:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39.968292000deg' successfully parsed 2026-02-10 09:30:17 INFO phaseshift::::casa Shift phase center 2026-02-10 09:30:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:30:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:30:14.603391 End time: 2026-02-10 09:30:17.477824 2026-02-10 09:30:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:30:17 INFO phaseshift::::casa ########################################## 2026-02-10 09:30:18 INFO tclean::::casa ########################################## 2026-02-10 09:30:18 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:30:18 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:30:18 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:30:18 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:30:18 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:30:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:30:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:30:18 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:30:18 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:30:18 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:30:18 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:30:18 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:30:18 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:30:18 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:30:20 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:30:20 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029209 2026-02-10 09:30:20 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:30:20 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:30:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:30:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:30:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:30:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:30:24 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:30:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:30:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:30:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:30:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:30:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:30:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:30:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:30:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:30:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:30:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:30:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:30:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:30:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:30:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:30:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:30:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:30:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:30:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:30:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:30:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:30:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:30:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:30:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:30:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:30:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:30:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:30:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:30:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:30:42 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-02-10 09:30:46 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:30:17.529559 End time: 2026-02-10 09:30:46.447396 2026-02-10 09:30:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:30:46 INFO tclean::::casa ########################################## 2026-02-10 09:30:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:30:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:30:46 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) 2026-02-10 09:30:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:30:46 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:30:46 2026****** 2026-02-10 09:30:46 INFO ImageFitter::fit+ 2026-02-10 09:30:46 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:30:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:30:46 INFO ImageFitter::fit+ --- region: 2026-02-10 09:30:46 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:30:46 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:30:46 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:30:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:30:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:30:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:30:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:30:47 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) 2026-02-10 09:30:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:30:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:30:47 INFO imstat::::casa ########################################## 2026-02-10 09:30:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:30:47 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 ) 2026-02-10 09:30:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:30:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:30:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:30:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:30:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:30:47 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) 2026-02-10 09:30:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:30:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:30:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:30:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:30:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:30:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:30:47 INFO imstat:::: Values --- 2026-02-10 09:30:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:30:47 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:30:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:30:47 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-02-10 09:30:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:30:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:30:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:30:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:30:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:30:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:30:47 INFO imstat:::: Statistics --- 2026-02-10 09:30:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:30:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:30:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:30:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:30:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-02-10 09:30:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-02-10 09:30:47 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-02-10 09:30:47 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-02-10 09:30:47 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-02-10 09:30:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:30:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:30:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:30:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:30:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:30:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:30:47 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-02-10 09:30:47 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:30:46.530459 End time: 2026-02-10 09:30:46.556694 2026-02-10 09:30:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:30:47 INFO imstat::::casa ########################################## 2026-02-10 09:30:47 INFO phaseshift::::casa ########################################## 2026-02-10 09:30:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:30:47 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 0.697578292rad' ) 2026-02-10 09:30:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:30:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:30:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:30:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:30:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:30:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:30:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:30:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:30:47 INFO MSTransformManager::open Select data 2026-02-10 09:30:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:30:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:30:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 0.697578292rad' successfully parsed 2026-02-10 09:30:54 INFO phaseshift::::casa Shift phase center 2026-02-10 09:30:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:30:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:30:46.573556 End time: 2026-02-10 09:30:55.847402 2026-02-10 09:30:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:30:56 INFO phaseshift::::casa ########################################## 2026-02-10 09:30:56 INFO tclean::::casa ########################################## 2026-02-10 09:30:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:30:56 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 ) 2026-02-10 09:30:56 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:30:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:30:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:30:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:30:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:30:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:30:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:30:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:30:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:30:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:30:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:30:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:30:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:30:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029186 2026-02-10 09:30:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:30:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:31:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:31:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:31:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:31:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:31:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:31:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:31:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:31:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:31:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:31:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:31:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:31:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:31:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:31:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:31:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:31:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:31:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:31:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:31:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:31:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:31:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:31:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:31:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:31:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:31:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:31:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:31:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:31:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:31:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:31:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:31:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:31:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:31:13 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:31:14 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'] 2026-02-10 09:31:17 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:30:55.910277 End time: 2026-02-10 09:31:17.077480 2026-02-10 09:31:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:31:17 INFO tclean::::casa ########################################## 2026-02-10 09:31:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:31:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:31:17 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) 2026-02-10 09:31:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:31:17 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:31:17 2026****** 2026-02-10 09:31:17 INFO ImageFitter::fit+ 2026-02-10 09:31:17 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:31:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:31:17 INFO ImageFitter::fit+ --- region: 2026-02-10 09:31:17 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:31:17 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:31:17 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:31:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:31:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:31:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:31:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:31:17 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) 2026-02-10 09:31:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:31:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:31:17 INFO imstat::::casa ########################################## 2026-02-10 09:31:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:31:17 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 ) 2026-02-10 09:31:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:31:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:31:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:31:17 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:31:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:31:17 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) 2026-02-10 09:31:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:31:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:31:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:31:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:31:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:31:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:31:17 INFO imstat:::: Values --- 2026-02-10 09:31:17 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:31:17 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:31:17 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:31:17 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-02-10 09:31:17 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:31:17 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:31:17 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:31:17 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:31:17 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:31:17 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:31:17 INFO imstat:::: Statistics --- 2026-02-10 09:31:17 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:31:17 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:31:17 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:31:17 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:31:17 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-02-10 09:31:17 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-02-10 09:31:17 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-02-10 09:31:17 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-02-10 09:31:17 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-02-10 09:31:17 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:31:17 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:31:17 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:31:17 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:31:17 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:31:17 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:31:17 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 2026-02-10 09:31:17 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:31:17.152329 End time: 2026-02-10 09:31:17.178924 2026-02-10 09:31:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:31:17 INFO imstat::::casa ########################################## 2026-02-10 09:31:17 INFO phaseshift::::casa ########################################## 2026-02-10 09:31:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:31:17 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 19:52:05.6524 39d58m05.8512' ) 2026-02-10 09:31:17 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:31:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:31:17 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:31:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:31:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:31:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:31:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:31:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:31:17 INFO MSTransformManager::open Select data 2026-02-10 09:31:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:31:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:31:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39d58m05.8512' successfully parsed 2026-02-10 09:31:23 INFO phaseshift::::casa Shift phase center 2026-02-10 09:31:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:31:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:31:17.195988 End time: 2026-02-10 09:31:24.794936 2026-02-10 09:31:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:31:25 INFO phaseshift::::casa ########################################## 2026-02-10 09:31:25 INFO tclean::::casa ########################################## 2026-02-10 09:31:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:31:25 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 ) 2026-02-10 09:31:25 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:31:25 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:31:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:31:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:31:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:31:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:31:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:31:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:31:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:31:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:31:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:31:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:31:27 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:31:27 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026948 2026-02-10 09:31:27 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:31:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:31:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:31:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:31:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:31:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:31:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:31:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:31:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:31:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:31:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:31:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:31:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:31:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:31:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:31:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:31:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:31:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:31:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:31:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:31:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:31:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:31:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:31:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:31:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:31:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:31:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:31:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:31:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:31:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:31:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:31:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:31:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:31:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:31:43 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:31:43 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'] 2026-02-10 09:31:45 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:31:24.854966 End time: 2026-02-10 09:31:45.136924 2026-02-10 09:31:45 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:31:45 INFO tclean::::casa ########################################## 2026-02-10 09:31:45 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:31:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:31:45 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:31:45 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:31:45 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:31:45 2026****** 2026-02-10 09:31:45 INFO ImageFitter::fit+ 2026-02-10 09:31:45 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:31:45 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:31:45 INFO ImageFitter::fit+ --- region: 2026-02-10 09:31:45 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:31:45 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:31:45 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:31:45 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:31:45 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:31:45 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:31:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:31:45 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:31:45 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:31:45 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:31:45 INFO imstat::::casa ########################################## 2026-02-10 09:31:45 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:31:45 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-02-10 09:31:45 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:31:45 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:31:45 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:31:45 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:31:45 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:31:45 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:31:45 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:31:45 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:31:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:31:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:31:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:31:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:31:45 INFO imstat:::: Values --- 2026-02-10 09:31:45 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:31:45 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:31:45 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:31:45 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-02-10 09:31:45 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:31:45 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:31:45 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:31:45 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-02-10 09:31:45 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:31:45 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:31:45 INFO imstat:::: Statistics --- 2026-02-10 09:31:45 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:31:45 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:31:45 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:31:45 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:31:45 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-02-10 09:31:45 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-02-10 09:31:45 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-02-10 09:31:45 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-02-10 09:31:45 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-02-10 09:31:45 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:31:45 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:31:45 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:31:45 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:31:45 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:31:45 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:31:45 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 2026-02-10 09:31:45 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:31:45.221480 End time: 2026-02-10 09:31:45.251025 2026-02-10 09:31:45 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:31:45 INFO imstat::::casa ########################################## 2026-02-10 09:31:45 INFO phaseshift::::casa ########################################## 2026-02-10 09:31:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:31:45 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 02:39:52.3901' ) 2026-02-10 09:31:45 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:31:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:31:45 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:31:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:31:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:31:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:31:45 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:31:45 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:31:45 INFO MSTransformManager::open Select data 2026-02-10 09:31:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:31:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-02-10 09:31:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 02:39:52.3901' successfully parsed 2026-02-10 09:31:49 INFO phaseshift::::casa Shift phase center 2026-02-10 09:31:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:31:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:31:45.269058 End time: 2026-02-10 09:31:50.570139 2026-02-10 09:31:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:31:51 INFO phaseshift::::casa ########################################## 2026-02-10 09:31:51 INFO tclean::::casa ########################################## 2026-02-10 09:31:51 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:31:51 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:31:51 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:31:51 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:31:51 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:31:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:31:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:31:51 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:31:51 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:31:51 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:31:51 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:31:51 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:31:51 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:31:51 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:31:53 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:31:53 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026873 2026-02-10 09:31:53 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:31:53 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:31:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:31:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:31:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:31:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:31:56 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:31:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:31:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:31:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:31:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:31:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:32:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:32:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:32:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:32:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:32:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:32:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:32:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:32:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:32:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:32:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:32:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:32:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:32:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:32:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:32:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:32:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:32:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:32:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:32:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:32:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:32:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:32:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:32:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:32:11 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'] 2026-02-10 09:32:13 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:31:50.621313 End time: 2026-02-10 09:32:12.764842 2026-02-10 09:32:13 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:32:13 INFO tclean::::casa ########################################## 2026-02-10 09:32:13 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:32:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:32:13 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) 2026-02-10 09:32:13 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:32:13 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:32:13 2026****** 2026-02-10 09:32:13 INFO ImageFitter::fit+ 2026-02-10 09:32:13 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:32:13 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:32:13 INFO ImageFitter::fit+ --- region: 2026-02-10 09:32:13 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:32:13 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:32:13 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:32:13 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:32:13 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:32:13 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:32:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:32:13 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) 2026-02-10 09:32:13 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- ra: 128.000008 +/- 0.000127 pixels 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:32:13 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:32:13 INFO imstat::::casa ########################################## 2026-02-10 09:32:13 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:32:13 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 ) 2026-02-10 09:32:13 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:32:13 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:32:13 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:32:13 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:32:13 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:32:13 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-02-10 09:32:13 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:32:13 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:32:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:32:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:32:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-02-10 09:32:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-02-10 09:32:13 INFO imstat:::: Values --- 2026-02-10 09:32:13 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:32:13 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:32:13 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:32:13 INFO imstat:::: -- minimum value [min]: -7.78143e-05 Jy/beam 2026-02-10 09:32:13 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:32:13 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:32:13 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:32:13 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:32:13 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:32:13 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:32:13 INFO imstat:::: Statistics --- 2026-02-10 09:32:13 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:32:13 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:32:13 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:32:13 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:32:13 INFO imstat:::: -- Median of the pixel values [median]: -1.86838e-05 Jy/beam 2026-02-10 09:32:13 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73769e-05 Jy/beam 2026-02-10 09:32:13 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-02-10 09:32:13 INFO imstat:::: -- First quartile [q1]: -3.45216e-05 Jy/beam 2026-02-10 09:32:13 INFO imstat:::: -- Third quartile [q3]: 1.1124e-06 Jy/beam 2026-02-10 09:32:13 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:32:13 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:32:13 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:32:13 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:32:13 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:32:13 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:32:13 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.781426e-05 4.999996e+00 2026-02-10 09:32:13 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:32:12.846893 End time: 2026-02-10 09:32:12.881401 2026-02-10 09:32:13 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:32:13 INFO imstat::::casa ########################################## 2026-02-10 09:32:13 INFO phaseshift::::casa ########################################## 2026-02-10 09:32:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:32:13 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39.968292000deg' ) 2026-02-10 09:32:13 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:32:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:32:13 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:32:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:32:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:32:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:32:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:32:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:32:13 INFO MSTransformManager::open Select data 2026-02-10 09:32:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:32:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:32:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39.968292000deg' successfully parsed 2026-02-10 09:32:18 INFO phaseshift::::casa Shift phase center 2026-02-10 09:32:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:32:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:32:12.906149 End time: 2026-02-10 09:32:19.884027 2026-02-10 09:32:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:32:20 INFO phaseshift::::casa ########################################## 2026-02-10 09:32:20 INFO tclean::::casa ########################################## 2026-02-10 09:32:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:32:20 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 ) 2026-02-10 09:32:20 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:32:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:32:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:32:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:32:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:32:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:32:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:32:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:32:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:32:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:32:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:32:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:32:22 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:32:22 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022832 2026-02-10 09:32:22 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:32:22 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:32:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:32:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:32:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:32:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:32:26 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:32:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:32:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:32:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:32:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:32:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:32:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:32:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:32:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:32:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:32:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:32:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:32:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:32:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:32:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:32:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:32:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:32:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:32:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:32:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:32:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:32:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:32:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:32:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:32:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:32:37 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:32:37 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:32:37 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:32:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:32:39 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'] 2026-02-10 09:32:42 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:32:19.944336 End time: 2026-02-10 09:32:41.546576 2026-02-10 09:32:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:32:42 INFO tclean::::casa ########################################## 2026-02-10 09:32:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:32:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:32:42 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) 2026-02-10 09:32:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:32:42 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:32:42 2026****** 2026-02-10 09:32:42 INFO ImageFitter::fit+ 2026-02-10 09:32:42 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:32:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:32:42 INFO ImageFitter::fit+ --- region: 2026-02-10 09:32:42 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:32:42 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:32:42 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:32:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:32:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:32:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:32:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:32:42 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) 2026-02-10 09:32:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:32:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:32:42 INFO imstat::::casa ########################################## 2026-02-10 09:32:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:32:42 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 ) 2026-02-10 09:32:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:32:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:32:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:32:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:32:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:32:42 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) 2026-02-10 09:32:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:32:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:32:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:32:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:32:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:32:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:32:42 INFO imstat:::: Values --- 2026-02-10 09:32:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:32:42 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:32:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:32:42 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-02-10 09:32:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:32:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-02-10 09:32:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:32:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-02-10 09:32:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:32:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:32:42 INFO imstat:::: Statistics --- 2026-02-10 09:32:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:32:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:32:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:32:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:32:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-02-10 09:32:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-02-10 09:32:42 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-02-10 09:32:42 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-02-10 09:32:42 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-02-10 09:32:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:32:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:32:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:32:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:32:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:32:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:32:42 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 2026-02-10 09:32:42 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:32:41.623264 End time: 2026-02-10 09:32:41.651017 2026-02-10 09:32:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:32:42 INFO imstat::::casa ########################################## 2026-02-10 09:32:42 INFO phaseshift::::casa ########################################## 2026-02-10 09:32:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:32:42 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 0.697578292rad' ) 2026-02-10 09:32:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:32:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:32:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:32:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:32:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:32:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:32:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:32:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:32:42 INFO MSTransformManager::open Select data 2026-02-10 09:32:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:32:46 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:32:46 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 0.697578292rad' successfully parsed 2026-02-10 09:32:46 INFO phaseshift::::casa Shift phase center 2026-02-10 09:32:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:32:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:32:41.668117 End time: 2026-02-10 09:32:52.559469 2026-02-10 09:32:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:32:53 INFO phaseshift::::casa ########################################## 2026-02-10 09:32:53 INFO tclean::::casa ########################################## 2026-02-10 09:32:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:32:53 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:32:53 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:32:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:32:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:32:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:32:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:32:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:32:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:32:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:32:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:32:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:32:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:32:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:32:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:32:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028732 2026-02-10 09:32:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:32:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:32:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:33:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:33:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:33:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:33:01 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:33:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:33:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:33:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:33:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:33:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:33:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:33:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:33:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:33:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:33:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:33:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:33:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:33:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:33:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:33:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:33:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:33:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:33:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:33:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:33:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:33:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:33:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:33:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:33:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:33:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:33:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:33:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:33:19 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:33:19 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-02-10 09:33:22 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:32:52.620054 End time: 2026-02-10 09:33:22.249921 2026-02-10 09:33:22 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:33:22 INFO tclean::::casa ########################################## 2026-02-10 09:33:22 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:33:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:33:22 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:33:22 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:33:22 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:33:22 2026****** 2026-02-10 09:33:22 INFO ImageFitter::fit+ 2026-02-10 09:33:22 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:33:22 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:33:22 INFO ImageFitter::fit+ --- region: 2026-02-10 09:33:22 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:33:22 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:33:22 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:33:22 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:33:22 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:33:22 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:33:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:33:22 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:33:22 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:33:22 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:33:22 INFO imstat::::casa ########################################## 2026-02-10 09:33:22 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:33:22 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-02-10 09:33:22 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:33:22 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:33:22 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:33:22 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:33:22 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:33:22 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:33:22 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:33:22 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:33:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:33:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:33:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:33:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:33:22 INFO imstat:::: Values --- 2026-02-10 09:33:22 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:33:22 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:33:22 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:33:22 INFO imstat:::: -- minimum value [min]: -7.7781e-05 Jy/beam 2026-02-10 09:33:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:33:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:33:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:33:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:33:22 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:33:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:33:22 INFO imstat:::: Statistics --- 2026-02-10 09:33:22 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:33:22 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:33:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:33:22 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:33:22 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-02-10 09:33:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73593e-05 Jy/beam 2026-02-10 09:33:22 INFO imstat:::: -- IQR [quartile]: 3.56161e-05 Jy/beam 2026-02-10 09:33:22 INFO imstat:::: -- First quartile [q1]: -3.45125e-05 Jy/beam 2026-02-10 09:33:22 INFO imstat:::: -- Third quartile [q3]: 1.10364e-06 Jy/beam 2026-02-10 09:33:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:33:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:33:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:33:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:33:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:33:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:33:22 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 2026-02-10 09:33:22 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:33:22.334428 End time: 2026-02-10 09:33:22.363154 2026-02-10 09:33:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:33:22 INFO imstat::::casa ########################################## 2026-02-10 09:33:22 INFO phaseshift::::casa ########################################## 2026-02-10 09:33:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:33:22 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39d58m05.8512' ) 2026-02-10 09:33:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:33:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:33:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:33:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:33:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:33:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:33:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:33:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:33:22 INFO MSTransformManager::open Select data 2026-02-10 09:33:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:33:28 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:33:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39d58m05.8512' successfully parsed 2026-02-10 09:33:28 INFO phaseshift::::casa Shift phase center 2026-02-10 09:33:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:33:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:33:22.380976 End time: 2026-02-10 09:33:29.705225 2026-02-10 09:33:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:33:30 INFO phaseshift::::casa ########################################## 2026-02-10 09:33:30 INFO tclean::::casa ########################################## 2026-02-10 09:33:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:33:30 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 ) 2026-02-10 09:33:30 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:33:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:33:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:33:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:33:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:33:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:33:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:33:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:33:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:33:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:33:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:33:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:33:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:33:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028926 2026-02-10 09:33:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:33:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:33:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:33:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:33:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:33:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:33:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:33:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:33:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:33:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:33:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:33:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:33:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:33:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:33:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:33:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:33:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:33:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:33:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:33:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:33:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:33:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:33:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:33:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:33:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:33:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:33:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:33:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:33:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:33:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:33:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:33:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:33:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:33:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:33:49 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:33:49 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-02-10 09:33:51 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:33:29.762888 End time: 2026-02-10 09:33:50.925980 2026-02-10 09:33:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:33:51 INFO tclean::::casa ########################################## 2026-02-10 09:33:51 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:33:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:33:51 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) 2026-02-10 09:33:51 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:33:51 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:33:51 2026****** 2026-02-10 09:33:51 INFO ImageFitter::fit+ 2026-02-10 09:33:51 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:33:51 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:33:51 INFO ImageFitter::fit+ --- region: 2026-02-10 09:33:51 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:33:51 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:33:51 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:33:51 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:33:51 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:33:51 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:33:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:33:51 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) 2026-02-10 09:33:51 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:33:51 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:33:51 INFO imstat::::casa ########################################## 2026-02-10 09:33:51 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:33:51 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 ) 2026-02-10 09:33:51 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:33:51 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:33:51 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:33:51 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:33:51 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:33:51 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) 2026-02-10 09:33:51 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:33:51 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:33:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:33:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:33:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:33:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:33:51 INFO imstat:::: Values --- 2026-02-10 09:33:51 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:33:51 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:33:51 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:33:51 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-02-10 09:33:51 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:33:51 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:33:51 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:33:51 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:33:51 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:33:51 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:33:51 INFO imstat:::: Statistics --- 2026-02-10 09:33:51 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:33:51 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:33:51 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:33:51 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:33:51 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-02-10 09:33:51 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-02-10 09:33:51 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-02-10 09:33:51 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-02-10 09:33:51 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-02-10 09:33:51 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:33:51 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:33:51 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:33:51 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:33:51 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:33:51 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:33:51 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 2026-02-10 09:33:51 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:33:51.005539 End time: 2026-02-10 09:33:51.032959 2026-02-10 09:33:51 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:33:51 INFO imstat::::casa ########################################## 2026-02-10 09:33:51 INFO phaseshift::::casa ########################################## 2026-02-10 09:33:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:33:51 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 02:39:52.3901' ) 2026-02-10 09:33:51 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:33:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:33:51 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:33:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:33:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:33:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:33:51 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:33:51 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:33:51 INFO MSTransformManager::open Select data 2026-02-10 09:33:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:33:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-02-10 09:33:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 02:39:52.3901' successfully parsed 2026-02-10 09:33:55 INFO phaseshift::::casa Shift phase center 2026-02-10 09:33:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:33:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:33:51.050198 End time: 2026-02-10 09:33:55.555733 2026-02-10 09:33:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:33:56 INFO phaseshift::::casa ########################################## 2026-02-10 09:33:56 INFO tclean::::casa ########################################## 2026-02-10 09:33:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:33:56 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 ) 2026-02-10 09:33:56 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:33:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:33:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:33:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:33:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:33:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:33:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:33:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:33:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:33:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:33:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:33:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:33:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:33:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020656 2026-02-10 09:33:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:33:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:33:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:33:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:34:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:34:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:34:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:34:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:34:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:34:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:34:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:34:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:34:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:34:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:34:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:34:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:34:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:34:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:34:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:34:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:34:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:34:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:34:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:34:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:34:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:34:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:34:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:34:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:34:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:34:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:34:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:34:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:34:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:34:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:34:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:34:10 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'] 2026-02-10 09:34:11 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:33:55.612550 End time: 2026-02-10 09:34:11.359914 2026-02-10 09:34:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:34:11 INFO tclean::::casa ########################################## 2026-02-10 09:34:11 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:34:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:34:11 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) 2026-02-10 09:34:11 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:34:11 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:34:11 2026****** 2026-02-10 09:34:11 INFO ImageFitter::fit+ 2026-02-10 09:34:11 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:34:11 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:34:11 INFO ImageFitter::fit+ --- region: 2026-02-10 09:34:11 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:34:11 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:34:11 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:34:11 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:34:11 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:34:11 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:34:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:34:11 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) 2026-02-10 09:34:11 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:34:11 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:34:11 INFO imstat::::casa ########################################## 2026-02-10 09:34:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:34:11 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 ) 2026-02-10 09:34:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:34:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:34:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:34:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:34:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:34:11 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-02-10 09:34:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:34:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:34:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:34:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:34:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-02-10 09:34:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-02-10 09:34:11 INFO imstat:::: Values --- 2026-02-10 09:34:11 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:34:11 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:34:11 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:34:11 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-02-10 09:34:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:34:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:34:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:34:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:34:11 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:34:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:34:11 INFO imstat:::: Statistics --- 2026-02-10 09:34:11 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:34:11 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:34:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:34:11 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:34:11 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-02-10 09:34:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-02-10 09:34:11 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-02-10 09:34:11 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-02-10 09:34:11 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-02-10 09:34:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:34:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:34:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:34:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:34:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:34:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:34:11 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.782251e-05 4.999996e+00 2026-02-10 09:34:11 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:34:11.437289 End time: 2026-02-10 09:34:11.480754 2026-02-10 09:34:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:34:11 INFO imstat::::casa ########################################## 2026-02-10 09:34:11 INFO phaseshift::::casa ########################################## 2026-02-10 09:34:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:34:11 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 39.968292000deg' ) 2026-02-10 09:34:12 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:34:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:34:12 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:34:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:34:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:34:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:34:12 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:34:12 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:34:12 INFO MSTransformManager::open Select data 2026-02-10 09:34:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:34:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:34:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39.968292000deg' successfully parsed 2026-02-10 09:34:16 INFO phaseshift::::casa Shift phase center 2026-02-10 09:34:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:34:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:34:11.497686 End time: 2026-02-10 09:34:16.537333 2026-02-10 09:34:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:34:17 INFO phaseshift::::casa ########################################## 2026-02-10 09:34:17 INFO tclean::::casa ########################################## 2026-02-10 09:34:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:34:17 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 ) 2026-02-10 09:34:17 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:34:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:34:17 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:34:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:34:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:34:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:34:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:34:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:34:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:34:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:34:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:34:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:34:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:34:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028476 2026-02-10 09:34:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:34:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:34:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:34:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:34:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:34:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:34:22 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:34:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:34:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:34:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:34:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:34:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:34:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:34:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:34:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:34:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:34:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:34:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:34:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:34:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:34:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:34:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:34:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:34:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:34:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:34:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:34:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:34:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:34:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:34:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:34:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:34:28 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:34:28 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:34:28 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:34:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:34:29 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'] 2026-02-10 09:34:31 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:34:16.590128 End time: 2026-02-10 09:34:30.771734 2026-02-10 09:34:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:34:31 INFO tclean::::casa ########################################## 2026-02-10 09:34:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:34:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:34:31 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) 2026-02-10 09:34:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:34:31 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:34:31 2026****** 2026-02-10 09:34:31 INFO ImageFitter::fit+ 2026-02-10 09:34:31 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:34:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:34:31 INFO ImageFitter::fit+ --- region: 2026-02-10 09:34:31 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:34:31 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:34:31 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:34:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:34:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:34:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:34:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:34:31 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) 2026-02-10 09:34:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:34:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:34:31 INFO imstat::::casa ########################################## 2026-02-10 09:34:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:34:31 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 ) 2026-02-10 09:34:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:34:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:34:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:34:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:34:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:34:31 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) 2026-02-10 09:34:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:34:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:34:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:34:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:34:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:34:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:34:31 INFO imstat:::: Values --- 2026-02-10 09:34:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:34:31 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:34:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:34:31 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-02-10 09:34:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:34:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:34:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:34:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:34:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:34:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:34:31 INFO imstat:::: Statistics --- 2026-02-10 09:34:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:34:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:34:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:34:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:34:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-02-10 09:34:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-02-10 09:34:31 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-02-10 09:34:31 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-02-10 09:34:31 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-02-10 09:34:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:34:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:34:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:34:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:34:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:34:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:34:31 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-02-10 09:34:31 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:34:30.852930 End time: 2026-02-10 09:34:30.883001 2026-02-10 09:34:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:34:31 INFO imstat::::casa ########################################## 2026-02-10 09:34:31 INFO phaseshift::::casa ########################################## 2026-02-10 09:34:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:34:31 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 0.697578292rad' ) 2026-02-10 09:34:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:34:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:34:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:34:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:34:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:34:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:34:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:34:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:34:31 INFO MSTransformManager::open Select data 2026-02-10 09:34:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:34:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:34:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 0.697578292rad' successfully parsed 2026-02-10 09:34:35 INFO phaseshift::::casa Shift phase center 2026-02-10 09:34:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:34:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:34:30.902276 End time: 2026-02-10 09:34:36.300271 2026-02-10 09:34:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:34:36 INFO phaseshift::::casa ########################################## 2026-02-10 09:34:36 INFO tclean::::casa ########################################## 2026-02-10 09:34:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:34:36 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 ) 2026-02-10 09:34:36 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:34:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:34:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:34:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:34:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:34:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:34:37 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:34:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:34:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:34:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:34:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:34:37 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:34:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:34:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024497 2026-02-10 09:34:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:34:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:34:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:34:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:34:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:34:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:34:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:34:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:34:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:34:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:34:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:34:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:34:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:34:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:34:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:34:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:34:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:34:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:34:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:34:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:34:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:34:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:34:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:34:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:34:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:34:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:34:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:34:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:34:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:34:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:34:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:34:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:34:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:34:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:34:48 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:34:49 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-02-10 09:34:50 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:34:36.354036 End time: 2026-02-10 09:34:49.899002 2026-02-10 09:34:50 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:34:50 INFO tclean::::casa ########################################## 2026-02-10 09:34:50 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:34:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:34:50 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:34:50 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:34:50 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:34:50 2026****** 2026-02-10 09:34:50 INFO ImageFitter::fit+ 2026-02-10 09:34:50 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:34:50 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:34:50 INFO ImageFitter::fit+ --- region: 2026-02-10 09:34:50 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:34:50 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:34:50 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:34:50 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:34:50 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:34:50 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:34:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:34:50 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:34:50 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:34:50 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:34:50 INFO imstat::::casa ########################################## 2026-02-10 09:34:50 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:34:50 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-02-10 09:34:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:34:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:34:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:34:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:34:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:34:50 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-02-10 09:34:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:34:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:34:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:34:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:34:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:34:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:34:50 INFO imstat:::: Values --- 2026-02-10 09:34:50 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:34:50 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:34:50 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:34:50 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-02-10 09:34:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:34:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:34:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:34:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:34:50 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:34:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:34:50 INFO imstat:::: Statistics --- 2026-02-10 09:34:50 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:34:50 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:34:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:34:50 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:34:50 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-02-10 09:34:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-02-10 09:34:50 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-02-10 09:34:50 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-02-10 09:34:50 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-02-10 09:34:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:34:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:34:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:34:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:34:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:34:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:34:50 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 2026-02-10 09:34:50 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:34:49.975274 End time: 2026-02-10 09:34:50.001775 2026-02-10 09:34:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:34:50 INFO imstat::::casa ########################################## 2026-02-10 09:34:50 INFO phaseshift::::casa ########################################## 2026-02-10 09:34:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:34:50 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39d58m05.8512' ) 2026-02-10 09:34:50 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:34:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:34:50 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:34:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:34:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:34:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:34:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:34:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:34:50 INFO MSTransformManager::open Select data 2026-02-10 09:34:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:34:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:34:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39d58m05.8512' successfully parsed 2026-02-10 09:34:53 INFO phaseshift::::casa Shift phase center 2026-02-10 09:34:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:34:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:34:50.018969 End time: 2026-02-10 09:34:53.437160 2026-02-10 09:34:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:34:53 INFO phaseshift::::casa ########################################## 2026-02-10 09:34:53 INFO tclean::::casa ########################################## 2026-02-10 09:34:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:34:53 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:34:53 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:34:54 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:34:54 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:34:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:34:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:34:54 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:34:54 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:34:54 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:34:54 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:34:54 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:34:54 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:34:54 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:34:55 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:34:55 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02159 2026-02-10 09:34:55 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:34:55 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:34:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:34:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:34:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:34:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:34:57 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:34:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:34:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:34:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:34:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:34:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:34:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:34:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:34:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:34:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:34:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:34:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:35:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:35:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:35:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:35:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:35:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:35:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:35:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:35:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:35:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:35:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:35:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:35:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:35:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:35:02 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:35:02 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:35:02 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:35:03 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:35:03 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-02-10 09:35:04 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:34:53.498653 End time: 2026-02-10 09:35:04.389188 2026-02-10 09:35:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:35:04 INFO tclean::::casa ########################################## 2026-02-10 09:35:04 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:35:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:35:04 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) 2026-02-10 09:35:04 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:35:04 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:35:04 2026****** 2026-02-10 09:35:04 INFO ImageFitter::fit+ 2026-02-10 09:35:04 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:35:04 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:35:04 INFO ImageFitter::fit+ --- region: 2026-02-10 09:35:04 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:35:04 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:35:04 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:35:04 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:35:04 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:35:04 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:35:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:35:04 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:35:04 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:35:04 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:35:04 INFO imstat::::casa ########################################## 2026-02-10 09:35:04 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:35:04 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 ) 2026-02-10 09:35:04 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:35:04 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:35:04 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:35:04 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:35:04 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:35:04 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) 2026-02-10 09:35:04 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:35:04 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:35:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:35:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:35:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:35:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:35:04 INFO imstat:::: Values --- 2026-02-10 09:35:04 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:35:04 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:35:04 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:35:04 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-02-10 09:35:04 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:35:04 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:35:04 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:35:04 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:35:04 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:35:04 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:35:04 INFO imstat:::: Statistics --- 2026-02-10 09:35:04 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:35:04 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:35:04 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:35:04 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:35:04 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-02-10 09:35:04 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-02-10 09:35:04 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-02-10 09:35:04 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-02-10 09:35:04 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-02-10 09:35:04 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:35:04 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:35:04 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:35:04 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:35:04 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:35:04 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:35:04 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 2026-02-10 09:35:04 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:35:04.453181 End time: 2026-02-10 09:35:04.477570 2026-02-10 09:35:04 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:35:04 INFO imstat::::casa ########################################## 2026-02-10 09:35:04 INFO phaseshift::::casa ########################################## 2026-02-10 09:35:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:35:04 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 02:39:52.3901' ) 2026-02-10 09:35:05 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:35:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:35:05 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:35:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:35:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:35:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:35:05 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:35:05 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:35:05 INFO MSTransformManager::open Select data 2026-02-10 09:35:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:35:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-02-10 09:35:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 02:39:52.3901' successfully parsed 2026-02-10 09:35:08 INFO phaseshift::::casa Shift phase center 2026-02-10 09:35:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:35:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:35:04.493914 End time: 2026-02-10 09:35:10.180928 2026-02-10 09:35:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:35:10 INFO phaseshift::::casa ########################################## 2026-02-10 09:35:10 INFO tclean::::casa ########################################## 2026-02-10 09:35:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:35:10 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 ) 2026-02-10 09:35:10 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:35:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:35:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:35:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:35:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:35:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:35:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:35:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:35:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:35:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:35:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:35:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:35:11 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:35:11 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011448 2026-02-10 09:35:11 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:35:11 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:35:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:35:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:35:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:35:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:35:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:35:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:35:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:35:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:35:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:35:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:35:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:35:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:35:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:35:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:35:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:35:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:35:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:35:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:35:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:35:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:35:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:35:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:35:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:35:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:35:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-02-10 09:35:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:35:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:35:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:35:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:35:20 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:35:20 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:35:20 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:35:20 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:35:21 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'] 2026-02-10 09:35:22 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:35:10.241212 End time: 2026-02-10 09:35:21.813261 2026-02-10 09:35:22 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:35:22 INFO tclean::::casa ########################################## 2026-02-10 09:35:22 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:35:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:35:22 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-02-10 09:35:22 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:35:22 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:35:22 2026****** 2026-02-10 09:35:22 INFO ImageFitter::fit+ 2026-02-10 09:35:22 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:35:22 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:35:22 INFO ImageFitter::fit+ --- region: 2026-02-10 09:35:22 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:35:22 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:35:22 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:35:22 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:35:22 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:35:22 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:35:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:35:22 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-02-10 09:35:22 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116885 Jy 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126501 Jy 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:35:22 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:35:22 INFO imstat::::casa ########################################## 2026-02-10 09:35:22 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:35:22 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-02-10 09:35:22 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:35:22 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:35:22 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:35:22 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:35:22 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:35:22 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) 2026-02-10 09:35:22 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:35:22 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:35:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:35:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:35:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-02-10 09:35:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-02-10 09:35:22 INFO imstat:::: Values --- 2026-02-10 09:35:22 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:35:22 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:35:22 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:35:22 INFO imstat:::: -- minimum value [min]: -7.78268e-05 Jy/beam 2026-02-10 09:35:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:35:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:35:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:35:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:35:22 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:35:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:35:22 INFO imstat:::: Statistics --- 2026-02-10 09:35:22 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:35:22 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:35:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:35:22 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:35:22 INFO imstat:::: -- Median of the pixel values [median]: -1.8675e-05 Jy/beam 2026-02-10 09:35:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73782e-05 Jy/beam 2026-02-10 09:35:22 INFO imstat:::: -- IQR [quartile]: 3.56598e-05 Jy/beam 2026-02-10 09:35:22 INFO imstat:::: -- First quartile [q1]: -3.45364e-05 Jy/beam 2026-02-10 09:35:22 INFO imstat:::: -- Third quartile [q3]: 1.12335e-06 Jy/beam 2026-02-10 09:35:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:35:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:35:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:35:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:35:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:35:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:35:22 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 2026-02-10 09:35:22 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:35:21.897607 End time: 2026-02-10 09:35:21.931195 2026-02-10 09:35:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:35:22 INFO imstat::::casa ########################################## 2026-02-10 09:35:22 INFO phaseshift::::casa ########################################## 2026-02-10 09:35:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:35:22 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39.968292000deg' ) 2026-02-10 09:35:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:35:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:35:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:35:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:35:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:35:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:35:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:35:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:35:22 INFO MSTransformManager::open Select data 2026-02-10 09:35:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:35:25 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:35:25 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39.968292000deg' successfully parsed 2026-02-10 09:35:25 INFO phaseshift::::casa Shift phase center 2026-02-10 09:35:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:35:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:35:21.956327 End time: 2026-02-10 09:35:25.397214 2026-02-10 09:35:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:35:25 INFO phaseshift::::casa ########################################## 2026-02-10 09:35:25 INFO tclean::::casa ########################################## 2026-02-10 09:35:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:35:25 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 ) 2026-02-10 09:35:25 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:35:25 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:35:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:35:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:35:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:35:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:35:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:35:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:35:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:35:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:35:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:35:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:35:27 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:35:27 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02351 2026-02-10 09:35:27 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:35:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:35:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:35:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:35:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:35:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:35:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:35:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:35:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:35:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:35:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:35:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:35:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:35:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:35:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:35:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:35:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:35:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:35:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:35:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:35:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:35:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:35:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:35:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:35:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:35:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:35:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:35:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:35:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:35:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:35:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:35:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:35:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:35:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:35:33 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:35:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-02-10 09:35:34 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:35:25.446305 End time: 2026-02-10 09:35:34.377721 2026-02-10 09:35:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:35:34 INFO tclean::::casa ########################################## 2026-02-10 09:35:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:35:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:35:34 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) 2026-02-10 09:35:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:35:34 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:35:34 2026****** 2026-02-10 09:35:34 INFO ImageFitter::fit+ 2026-02-10 09:35:34 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:35:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:35:34 INFO ImageFitter::fit+ --- region: 2026-02-10 09:35:34 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:35:34 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:35:34 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:35:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:35:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:35:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:35:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:35:34 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) 2026-02-10 09:35:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:35:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:35:34 INFO imstat::::casa ########################################## 2026-02-10 09:35:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:35:34 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 ) 2026-02-10 09:35:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:35:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:35:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:35:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:35:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:35:34 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) 2026-02-10 09:35:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:35:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:35:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:35:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:35:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:35:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:35:34 INFO imstat:::: Values --- 2026-02-10 09:35:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:35:34 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:35:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:35:34 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-02-10 09:35:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:35:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:35:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:35:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:35:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:35:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:35:34 INFO imstat:::: Statistics --- 2026-02-10 09:35:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:35:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:35:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:35:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:35:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-02-10 09:35:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-02-10 09:35:34 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-02-10 09:35:34 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-02-10 09:35:34 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-02-10 09:35:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:35:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:35:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:35:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:35:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:35:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:35:34 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 2026-02-10 09:35:34 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:35:34.453777 End time: 2026-02-10 09:35:34.481199 2026-02-10 09:35:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:35:34 INFO imstat::::casa ########################################## 2026-02-10 09:35:35 INFO phaseshift::::casa ########################################## 2026-02-10 09:35:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-02-10 09:35:35 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 0.697578292rad' ) 2026-02-10 09:35:35 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-02-10 09:35:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-02-10 09:35:35 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-02-10 09:35:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-02-10 09:35:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-02-10 09:35:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-02-10 09:35:35 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-02-10 09:35:35 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-02-10 09:35:35 INFO MSTransformManager::open Select data 2026-02-10 09:35:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-02-10 09:35:37 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-02-10 09:35:37 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 0.697578292rad' successfully parsed 2026-02-10 09:35:37 INFO phaseshift::::casa Shift phase center 2026-02-10 09:35:38 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-02-10 09:35:38 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-02-10 09:35:34.502236 End time: 2026-02-10 09:35:38.132830 2026-02-10 09:35:38 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-02-10 09:35:38 INFO phaseshift::::casa ########################################## 2026-02-10 09:35:38 INFO tclean::::casa ########################################## 2026-02-10 09:35:38 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-02-10 09:35:38 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-02-10 09:35:38 INFO tclean::::casa Verifying Input Parameters 2026-02-10 09:35:38 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-02-10 09:35:38 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-02-10 09:35:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:35:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-02-10 09:35:38 INFO SynthesisImagerVi2::defineImage Impars: start 2026-02-10 09:35:38 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-02-10 09:35:38 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-02-10 09:35:38 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-02-10 09:35:38 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-02-10 09:35:38 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-02-10 09:35:38 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-02-10 09:35:39 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-02-10 09:35:39 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021328 2026-02-10 09:35:39 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:35:39 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-02-10 09:35:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-02-10 09:35:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-02-10 09:35:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-02-10 09:35:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-02-10 09:35:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-02-10 09:35:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:35:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-02-10 09:35:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-02-10 09:35:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-02-10 09:35:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-02-10 09:35:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-02-10 09:35:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:35:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-02-10 09:35:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-02-10 09:35:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-02-10 09:35:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-02-10 09:35:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-02-10 09:35:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:35:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-02-10 09:35:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-02-10 09:35:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-02-10 09:35:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-02-10 09:35:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-02-10 09:35:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-02-10 09:35:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-02-10 09:35:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-02-10 09:35:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-02-10 09:35:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-02-10 09:35:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-02-10 09:35:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-02-10 09:35:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-02-10 09:35:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-02-10 09:35:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-02-10 09:35:47 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'] 2026-02-10 09:35:49 INFO tclean::::casa Task tclean complete. Start time: 2026-02-10 09:35:38.187100 End time: 2026-02-10 09:35:48.526255 2026-02-10 09:35:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-02-10 09:35:49 INFO tclean::::casa ########################################## 2026-02-10 09:35:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-02-10 09:35:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:35:49 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) 2026-02-10 09:35:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-02-10 09:35:49 INFO ImageFitter::fit ****** Fit performed at Tue Feb 10 09:35:49 2026****** 2026-02-10 09:35:49 INFO ImageFitter::fit+ 2026-02-10 09:35:49 INFO ImageFitter::fit+ Input parameters --- 2026-02-10 09:35:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-02-10 09:35:49 INFO ImageFitter::fit+ --- region: 2026-02-10 09:35:49 INFO ImageFitter::fit+ --- channel: 0 2026-02-10 09:35:49 INFO ImageFitter::fit+ --- stokes: I 2026-02-10 09:35:49 INFO ImageFitter::fit+ --- mask: 2026-02-10 09:35:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-02-10 09:35:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-02-10 09:35:49 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-02-10 09:35:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:35:49 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) 2026-02-10 09:35:49 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ Position --- 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ Flux --- 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-02-10 09:35:49 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-02-10 09:35:49 INFO imstat::::casa ########################################## 2026-02-10 09:35:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-02-10 09:35:49 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 ) 2026-02-10 09:35:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-02-10 09:35:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-02-10 09:35:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-02-10 09:35:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-02-10 09:35:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-02-10 09:35:49 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) 2026-02-10 09:35:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-02-10 09:35:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-02-10 09:35:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-02-10 09:35:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-02-10 09:35:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-02-10 09:35:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-02-10 09:35:49 INFO imstat:::: Values --- 2026-02-10 09:35:49 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-02-10 09:35:49 INFO imstat:::: -- number of points [npts]: 65536 2026-02-10 09:35:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-02-10 09:35:49 INFO imstat:::: -- minimum value [min]: -7.77956e-05 Jy/beam 2026-02-10 09:35:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-02-10 09:35:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-02-10 09:35:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-02-10 09:35:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-02-10 09:35:49 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-02-10 09:35:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-02-10 09:35:49 INFO imstat:::: Statistics --- 2026-02-10 09:35:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-02-10 09:35:49 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-02-10 09:35:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-02-10 09:35:49 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-02-10 09:35:49 INFO imstat:::: -- Median of the pixel values [median]: -1.86648e-05 Jy/beam 2026-02-10 09:35:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73536e-05 Jy/beam 2026-02-10 09:35:49 INFO imstat:::: -- IQR [quartile]: 3.5639e-05 Jy/beam 2026-02-10 09:35:49 INFO imstat:::: -- First quartile [q1]: -3.45152e-05 Jy/beam 2026-02-10 09:35:49 INFO imstat:::: -- Third quartile [q3]: 1.12373e-06 Jy/beam 2026-02-10 09:35:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-02-10 09:35:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-02-10 09:35:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-02-10 09:35:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-02-10 09:35:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-02-10 09:35:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-02-10 09:35:49 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 2026-02-10 09:35:49 INFO imstat::::casa Task imstat complete. Start time: 2026-02-10 09:35:48.613902 End time: 2026-02-10 09:35:48.643076 2026-02-10 09:35:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-02-10 09:35:49 INFO imstat::::casa ########################################## . ---------------------------------------------------------------------- Ran 27 tests in 2008.444s OK Generating XML reports...