2026-10-09 02:12:32 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-10-09 02:12:32 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-10-09 02:12:32 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-10-09 02:12:32 INFO ::casa 2026-10-09 02:12:32 INFO ::casa config values 2026-10-09 02:12:32 INFO ::casa agg = False 2026-10-09 02:12:32 INFO ::casa cachedir = '/home/casatest/.casa' 2026-10-09 02:12:32 INFO ::casa casaconfig_verbose = 1 2026-10-09 02:12:32 INFO ::casa colors = 'Neutral' 2026-10-09 02:12:32 INFO ::casa data_auto_update = False 2026-10-09 02:12:32 INFO ::casa data_update_interval = 1 2026-10-09 02:12:32 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-10-09 02:12:32 INFO ::casa iplog = False 2026-10-09 02:12:32 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/ipython-20261009-021227.log' 2026-10-09 02:12:32 INFO ::casa log2term = True 2026-10-09 02:12:32 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/casa-20261009-021227.log' 2026-10-09 02:12:32 INFO ::casa measures_auto_update = False 2026-10-09 02:12:32 INFO ::casa measures_site = ['https://www.astron.nl/iers/', 'https://go.nrao.edu/iers/'] 2026-10-09 02:12:32 INFO ::casa measures_site_interval = 2 2026-10-09 02:12:32 INFO ::casa measures_update_interval = 1 2026-10-09 02:12:32 INFO ::casa measurespath = '/opt/casa/data/master' 2026-10-09 02:12:32 INFO ::casa nogui = False 2026-10-09 02:12:32 INFO ::casa nologfile = False 2026-10-09 02:12:32 INFO ::casa nologger = True 2026-10-09 02:12:32 INFO ::casa pipeline = False 2026-10-09 02:12:32 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-10-09 02:12:32 INFO ::casa user_site = False 2026-10-09 02:12:32 INFO ::casa 2026-10-09 02:12:32 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-10-09 02:12:32 INFO ::casa measures version is unknown, this is probably a legacy version not installed by casaconfig 2026-10-09 02:12:32 INFO ::casa 2026-10-09 02:12:32 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-10-09 02:12:32 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/09/10/15:15, 2026/08/11/00:00:00 2026-10-09 02:12:32 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/09/10/15:15, 2026/08/11/00:00:00 2026-10-09 02:12:32 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/10/08/15:15, 2027/01/06/00:00:00 2026-10-09 02:12:32 INFO ::casa TAI_UTC (version date, last date in table (UTC)): 2026/10/05/15:15, 2017/01/01/00:00:00 Running tests... ---------------------------------------------------------------------- Using user configuration file /home/casatest/.casa/config.py No event loop hook running. Using matplotlib backend: agg CASA 6.7.4.11 -- Common Astronomy Software Applications [6.7.4.11] 2026-10-09 02:12:33 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:33 INFO phaseshift::::casa phaseshift( vis='/opt/casa/data/casatestdata/unittest/phaseshift/split11.ms', outputvis='phaseshift11.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'ICRS 1h27m38.337s +5d25m38.886s'} ) 2026-10-09 02:12:34 INFO MSTransformManager::parseMsSpecParams Input file name is /opt/casa/data/casatestdata/unittest/phaseshift/split11.ms 2026-10-09 02:12:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:34 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshift11.ms 2026-10-09 02:12:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:34 INFO MSTransformManager::open Select data 2026-10-09 02:12:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-09 02:12:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 1h27m38.337s +5d25m38.886s' successfully parsed for field 0 2026-10-09 02:12:35 INFO phaseshift::::casa Shift phase center 2026-10-09 02:12:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:12:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:33.152447 End time: 2026-10-09 02:12:35.533215 2026-10-09 02:12:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:36 INFO phaseshift::::casa ########################################## .2026-10-09 02:12:36 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:36 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'GALACTIC 19h53m50 40d06m00', '2': 'GALACTIC 22h01m02 40d04m03'} ) 2026-10-09 02:12:36 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 02:12:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:36 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-09 02:12:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:36 INFO MSTransformManager::open Select data 2026-10-09 02:12:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:36 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-09 02:12:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 19h53m50 40d06m00' successfully parsed for field 0 2026-10-09 02:12:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 22h01m02 40d04m03' successfully parsed for field 2 2026-10-09 02:12:36 INFO phaseshift::::casa Shift phase center 2026-10-09 02:12:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:12:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:35.635874 End time: 2026-10-09 02:12:36.588956 2026-10-09 02:12:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:37 INFO phaseshift::::casa ########################################## .2026-10-09 02:12:37 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:37 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'} ) 2026-10-09 02:12:37 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 02:12:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:37 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-09 02:12:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:37 INFO MSTransformManager::open Select data 2026-10-09 02:12:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:37 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-09 02:12:37 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-10-09 02:12:37 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-10-09 02:12:37 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-09 02:12:37 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-09 02:12:37 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-10-09 02:12:37 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 02:12:37 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-09 02:12:37 INFO phaseshift::::casa+ mtlocal.open() 2026-10-09 02:12:37 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-09 02:12:37 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-09 02:12:37 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-09 02:12:37 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-10-09 02:12:37 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-09 02:12:37 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 02:12:37 INFO phaseshift::::casa+ RuntimeError: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-10-09 02:12:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:36.668112 End time: 2026-10-09 02:12:37.121838 2026-10-09 02:12:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:37 INFO phaseshift::::casa ########################################## .2026-10-09 02:12:37 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:37 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'} ) 2026-10-09 02:12:37 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 02:12:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:37 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-09 02:12:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:37 INFO MSTransformManager::open Select data 2026-10-09 02:12:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-09 02:12:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-10-09 02:12:38 INFO phaseshift::::casa Shift phase center 2026-10-09 02:12:38 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:12:38 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:37.219499 End time: 2026-10-09 02:12:38.141975 2026-10-09 02:12:38 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:38 INFO phaseshift::::casa ########################################## .2026-10-09 02:12:38 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:38 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='0,2', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'1': 'J2000 19h53m50 40d06m00', '2': 'J2000 22h01m02 40d04m03'} ) 2026-10-09 02:12:38 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 02:12:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:38 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-09 02:12:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:38 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-10-09 02:12:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:38 INFO MSTransformManager::open Select data 2026-10-09 02:12:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:38 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-10-09 02:12:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-09 02:12:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 1 2026-10-09 02:12:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 22h01m02 40d04m03' successfully parsed for field 2 2026-10-09 02:12:39 INFO phaseshift::::casa Shift phase center 2026-10-09 02:12:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:12:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:38.237696 End time: 2026-10-09 02:12:39.013941 2026-10-09 02:12:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:39 INFO phaseshift::::casa ########################################## .2026-10-09 02:12:39 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:39 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:39 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='0,2', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'ICRS 19h53m50 40d06m00', '2': 'ICRS 22h01m02 40d04m03'} ) 2026-10-09 02:12:39 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 02:12:39 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:39 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-09 02:12:39 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:39 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-10-09 02:12:39 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:39 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:39 INFO MSTransformManager::open Select data 2026-10-09 02:12:39 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:39 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-10-09 02:12:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-09 02:12:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m50 40d06m00' successfully parsed for field 0 2026-10-09 02:12:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 22h01m02 40d04m03' successfully parsed for field 2 2026-10-09 02:12:39 INFO phaseshift::::casa Shift phase center 2026-10-09 02:12:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:12:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:39.093043 End time: 2026-10-09 02:12:39.876881 2026-10-09 02:12:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:40 INFO phaseshift::::casa ########################################## .2026-10-09 02:12:40 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:40 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-09 02:12:40 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 02:12:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:40 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-09 02:12:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:40 INFO MSTransformManager::open Select data 2026-10-09 02:12:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:40 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:12:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-09 02:12:40 INFO phaseshift::::casa Shift phase center 2026-10-09 02:12:41 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:12:41 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:39.936511 End time: 2026-10-09 02:12:40.858703 2026-10-09 02:12:41 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:41 INFO phaseshift::::casa ########################################## ..2026-10-09 02:12:41 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) Requested JD 0 is outside the range of the IERS (Earth axis data) table. 2026-10-09 02:12:41 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) + Calculations will proceed with less precision ..2026-10-09 02:12:42 SEVERE Error in QuantumHolder::fromString with input string "xxh53m50": Illegal input units or format 2026-10-09 02:12:42 SEVERE + in converting quantity from string 2026-10-09 02:12:42 SEVERE Exception Reported: Empty QuantumHolder argument for asQuantumDouble 2026-10-09 02:12:42 SEVERE Exception Reports: Empty QuantumHolder argument for asQuantumDouble 2026-10-09 02:12:42 SEVERE phaseshift::::casa *** Error measures.direction() failed for phasecenter string: BOGUS xxh53m50 40d06m00 when interpreting parameter 'phasecenter': ...2026-10-09 02:12:45 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:45 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='1', observation='', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-10-09 02:12:45 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 02:12:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:45 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 02:12:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:45 INFO MSTransformManager::parseDataSelParams array selection is 1 2026-10-09 02:12:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:45 INFO MSTransformManager::open Select data 2026-10-09 02:12:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:45 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-10-09 02:12:45 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-09 02:12:45 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-09 02:12:45 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'] ) 2026-10-09 02:12:45 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 02:12:45 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-09 02:12:45 INFO phaseshift::::casa+ mtlocal.open() 2026-10-09 02:12:45 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-09 02:12:45 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-09 02:12:45 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-09 02:12:45 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-10-09 02:12:45 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-09 02:12:45 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 02:12:45 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-10-09 02:12:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:45.397289 End time: 2026-10-09 02:12:45.435396 2026-10-09 02:12:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:45 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:45 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:45 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='0', observation='', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-10-09 02:12:45 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 02:12:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:45 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 02:12:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:45 INFO MSTransformManager::parseDataSelParams array selection is 0 2026-10-09 02:12:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:45 INFO MSTransformManager::open Select data 2026-10-09 02:12:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:46 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-09 02:12:46 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-09 02:12:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:12:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-09 02:12:47 INFO phaseshift::::casa Shift phase center 2026-10-09 02:12:47 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:12:47 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:45.436602 End time: 2026-10-09 02:12:46.841080 2026-10-09 02:12:47 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:47 INFO phaseshift::::casa ########################################## .2026-10-09 02:12:48 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:48 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:48 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='MODEL', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-10-09 02:12:48 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 02:12:48 INFO MSTransformManager::parseMsSpecParams Data column is MODEL 2026-10-09 02:12:48 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 02:12:48 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:48 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:48 WARN MSTransformManager::checkDataColumnsToFill MODEL_DATA column requested but not available in input MS 2026-10-09 02:12:48 INFO MSTransformManager::open Select data 2026-10-09 02:12:48 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:48 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Desired column (MODEL_DATA) not found in the input MS (/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/nep_copy.ms). 2026-10-09 02:12:48 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-09 02:12:48 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-09 02:12:48 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-10-09 02:12:48 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 02:12:48 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-09 02:12:48 INFO phaseshift::::casa+ mtlocal.open() 2026-10-09 02:12:48 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-09 02:12:48 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-09 02:12:48 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-09 02:12:48 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-10-09 02:12:48 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-09 02:12:48 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 02:12:48 INFO phaseshift::::casa+ RuntimeError: Desired column (MODEL_DATA) not found in the input MS (/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/nep_copy.ms). 2026-10-09 02:12:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:47.719744 End time: 2026-10-09 02:12:47.749534 2026-10-09 02:12:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:48 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:48 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:48 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:48 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='DATA', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-10-09 02:12:48 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 02:12:48 INFO MSTransformManager::parseMsSpecParams Data column is DATA 2026-10-09 02:12:48 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 02:12:48 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:48 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:48 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:48 INFO MSTransformManager::open Select data 2026-10-09 02:12:48 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:48 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-09 02:12:48 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-09 02:12:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:12:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-09 02:12:49 INFO phaseshift::::casa Shift phase center 2026-10-09 02:12:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:12:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:47.750655 End time: 2026-10-09 02:12:49.040972 2026-10-09 02:12:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:49 INFO phaseshift::::casa ########################################## .2026-10-09 02:12:50 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:50 INFO phaseshift::::casa phaseshift( vis='Itziar_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='2', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 00h00m01 -29d55m40' ) 2026-10-09 02:12:50 INFO MSTransformManager::parseMsSpecParams Input file name is Itziar_copy.ms 2026-10-09 02:12:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:50 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 02:12:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:50 INFO MSTransformManager::parseDataSelParams field selection is 2 2026-10-09 02:12:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:12:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:12:50 INFO MSTransformManager::open Select data 2026-10-09 02:12:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:50 INFO MSTransformDataHandler::makeSelection 6125 out of 245000 rows are going to be considered due to the selection criteria. 2026-10-09 02:12:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:12:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 00h00m01 -29d55m40' successfully parsed 2026-10-09 02:12:50 INFO phaseshift::::casa Shift phase center 2026-10-09 02:12:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:12:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:50.035062 End time: 2026-10-09 02:12:50.402388 2026-10-09 02:12:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:50 INFO phaseshift::::casa ########################################## .2026-10-09 02:12:51 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:51 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='*FLUX*', array='', observation='', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-10-09 02:12:51 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 02:12:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:51 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 02:12:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:51 INFO MSTransformManager::parseDataSelParams scan intent selection is *FLUX* 2026-10-09 02:12:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:51 INFO MSTransformManager::open Select data 2026-10-09 02:12:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:51 INFO MSTransformDataHandler::makeSelection 570 out of 6270 rows are going to be considered due to the selection criteria. 2026-10-09 02:12:52 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-09 02:12:52 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-09 02:12:52 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:12:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-09 02:12:52 INFO phaseshift::::casa Shift phase center 2026-10-09 02:12:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:12:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:51.157405 End time: 2026-10-09 02:12:52.284789 2026-10-09 02:12:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:52 INFO phaseshift::::casa ########################################## .2026-10-09 02:12:53 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:53 INFO phaseshift::::casa phaseshift( vis='mms_copy.mms', outputvis='phaseshiftout.ms', keepmms=False, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 05h30m48 13d31m48' ) 2026-10-09 02:12:53 INFO MSTransformManager::parseMsSpecParams Input file name is mms_copy.mms 2026-10-09 02:12:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:53 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 02:12:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:53 INFO MSTransformManager::open Select data 2026-10-09 02:12:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:12:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 05h30m48 13d31m48' successfully parsed 2026-10-09 02:12:54 INFO phaseshift::::casa Shift phase center 2026-10-09 02:12:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:12:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:53.277923 End time: 2026-10-09 02:12:53.964511 2026-10-09 02:12:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:54 INFO phaseshift::::casa ########################################## .2026-10-09 02:12:55 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:55 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='1', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-10-09 02:12:55 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 02:12:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:55 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 02:12:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:55 INFO MSTransformManager::parseDataSelParams observation selection is 1 2026-10-09 02:12:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:55 INFO MSTransformManager::open Select data 2026-10-09 02:12:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:55 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-10-09 02:12:55 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-09 02:12:55 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-09 02:12:55 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-10-09 02:12:55 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 02:12:55 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-09 02:12:55 INFO phaseshift::::casa+ mtlocal.open() 2026-10-09 02:12:55 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-09 02:12:55 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-09 02:12:55 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-09 02:12:55 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-10-09 02:12:55 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-09 02:12:55 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 02:12:55 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-10-09 02:12:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:54.846698 End time: 2026-10-09 02:12:54.883227 2026-10-09 02:12:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:55 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:55 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:55 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='0', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-10-09 02:12:55 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 02:12:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:55 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 02:12:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:55 INFO MSTransformManager::parseDataSelParams observation selection is 0 2026-10-09 02:12:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:55 INFO MSTransformManager::open Select data 2026-10-09 02:12:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:55 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-09 02:12:55 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-09 02:12:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:12:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-09 02:12:56 INFO phaseshift::::casa Shift phase center 2026-10-09 02:12:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:12:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:54.884399 End time: 2026-10-09 02:12:56.157565 2026-10-09 02:12:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:56 INFO phaseshift::::casa ########################################## .2026-10-09 02:12:57 INFO phaseshift::::casa ########################################## 2026-10-09 02:12:57 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:12:57 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-09 02:12:57 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 02:12:57 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:12:57 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 02:12:57 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:12:57 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:12:57 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:12:57 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:12:57 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:12:57 INFO MSTransformManager::open Select data 2026-10-09 02:12:57 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:12:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:12:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-09 02:12:57 INFO phaseshift::::casa Shift phase center 2026-10-09 02:12:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:12:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:57.020218 End time: 2026-10-09 02:12:58.738165 2026-10-09 02:12:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:12:59 INFO phaseshift::::casa ########################################## .2026-10-09 02:13:00 INFO phaseshift::::casa ########################################## 2026-10-09 02:13:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:13:00 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='' ) 2026-10-09 02:13:00 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: phasecenter parameter must be specified 2026-10-09 02:13:00 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-09 02:13:00 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-09 02:13:00 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-10-09 02:13:00 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 02:13:00 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 31, in phaseshift 2026-10-09 02:13:00 INFO phaseshift::::casa+ raise ValueError("phasecenter parameter must be specified") 2026-10-09 02:13:00 INFO phaseshift::::casa+ ValueError: phasecenter parameter must be specified 2026-10-09 02:13:00 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:59.607733 End time: 2026-10-09 02:12:59.608859 2026-10-09 02:13:00 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:13:00 INFO phaseshift::::casa ########################################## 2026-10-09 02:13:00 INFO phaseshift::::casa ########################################## 2026-10-09 02:13:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:13:00 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 00h06m14 -08d23m35' ) 2026-10-09 02:13:00 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 02:13:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:13:00 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 02:13:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:13:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:13:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:13:00 INFO MSTransformManager::open Select data 2026-10-09 02:13:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:13:00 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-09 02:13:00 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-09 02:13:01 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:13:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -08d23m35' successfully parsed 2026-10-09 02:13:01 INFO phaseshift::::casa Shift phase center 2026-10-09 02:13:01 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:13:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:12:59.609849 End time: 2026-10-09 02:13:00.790060 2026-10-09 02:13:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:13:01 INFO phaseshift::::casa ########################################## .2026-10-09 02:13:02 INFO phaseshift::::casa ########################################## 2026-10-09 02:13:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:13:02 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='00h06m14 -08d23m35' ) 2026-10-09 02:13:02 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 02:13:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:13:02 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 02:13:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:13:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:13:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:13:02 INFO MSTransformManager::open Select data 2026-10-09 02:13:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:13:02 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-09 02:13:02 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-09 02:13:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:13:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center '00h06m14 -08d23m35' successfully parsed 2026-10-09 02:13:03 INFO phaseshift::::casa Shift phase center 2026-10-09 02:13:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:13:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:13:01.778405 End time: 2026-10-09 02:13:02.982017 2026-10-09 02:13:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:13:03 INFO phaseshift::::casa ########################################## .2026-10-09 02:13:04 INFO phaseshift::::casa ########################################## 2026-10-09 02:13:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:13:04 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='post_phaseshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-09 02:13:04 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 02:13:04 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:13:04 INFO MSTransformManager::parseMsSpecParams Output file name is post_phaseshift.ms 2026-10-09 02:13:04 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:13:04 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:13:04 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:13:04 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:13:04 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:13:04 INFO MSTransformManager::open Select data 2026-10-09 02:13:04 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:13:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:13:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-09 02:13:04 INFO phaseshift::::casa Shift phase center 2026-10-09 02:13:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:13:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:13:04.021349 End time: 2026-10-09 02:13:05.672492 2026-10-09 02:13:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:13:06 INFO phaseshift::::casa ########################################## 2026-10-09 02:13:06 INFO tclean::::casa ########################################## 2026-10-09 02:13:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:13:06 INFO tclean::::casa tclean( vis='datacopy.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_pre', imsize=2048, cell='5arcsec', phasecenter='J2000 19h59m28.449 40d44m01.199', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:13:06 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:13:06 INFO SynthesisImagerVi2::selectData MS : datacopy.ms | [Opened in readonly mode] 2026-10-09 02:13:06 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-10-09 02:13:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-10-09 02:13:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-10-09 02:13:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:13:06 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-10-09 02:13:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_pre] with ftmachine : wprojectft 2026-10-09 02:13:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 11.12 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:13:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:13:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_pre] : hogbom 2026-10-09 02:13:06 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:13:06 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-10-09 02:13:06 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-10-09 02:13:06 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-10-09 02:13:06 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-10-09 02:13:46 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-10-09 02:13:46 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 15884 MB 2026-10-09 02:13:49 INFO SIImageStore::calcSensitivity [im2_pre] Theoretical sensitivity (Jy/bm):0.00204403 2026-10-09 02:13:49 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.072979 2026-10-09 02:13:49 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-10-09 02:13:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:13:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:13:52 INFO task_tclean::SDAlgorithmBase::restore [im2_pre] : Restoring model image. 2026-10-09 02:13:52 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-10-09 02:13:52 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-10-09 02:13:52 INFO tclean::::casa Searching for images with prefix 'im2_pre'... Found these, writing history into them: ['im2_pre.image', 'im2_pre.psf', 'im2_pre.pb', 'im2_pre.model', 'im2_pre.residual', 'im2_pre.sumwt'] 2026-10-09 02:13:52 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:13:05.778920 End time: 2026-10-09 02:13:52.496397 2026-10-09 02:13:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:13:52 INFO tclean::::casa ########################################## 2026-10-09 02:13:53 INFO tclean::::casa ########################################## 2026-10-09 02:13:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:13:53 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift', imsize=2048, cell='5arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:13:53 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:13:53 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-10-09 02:13:53 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-10-09 02:13:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-10-09 02:13:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-10-09 02:13:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:13:53 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-10-09 02:13:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift] with ftmachine : wprojectft 2026-10-09 02:13:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 11.1 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:13:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:13:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift] : hogbom 2026-10-09 02:13:53 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:13:53 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-10-09 02:13:53 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-10-09 02:13:53 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-10-09 02:13:53 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-10-09 02:14:31 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-10-09 02:14:31 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 15884 MB 2026-10-09 02:14:34 INFO SIImageStore::calcSensitivity [im2_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00204403 2026-10-09 02:14:34 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.069661 2026-10-09 02:14:34 INFO SIImageStore::printBeamSet Beam : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-10-09 02:14:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:14:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:14:37 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift] : Restoring model image. 2026-10-09 02:14:37 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-10-09 02:14:37 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-10-09 02:14:37 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift'... Found these, writing history into them: ['im2_post_phaseshift.residual', 'im2_post_phaseshift.psf', 'im2_post_phaseshift.sumwt', 'im2_post_phaseshift.image', 'im2_post_phaseshift.pb', 'im2_post_phaseshift.model'] 2026-10-09 02:14:37 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:13:52.731715 End time: 2026-10-09 02:14:37.152618 2026-10-09 02:14:37 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:14:37 INFO tclean::::casa ########################################## 2026-10-09 02:14:37 INFO tclean::::casa ########################################## 2026-10-09 02:14:37 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:14:37 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift_tclean_phasecenter', imsize=2048, cell='5arcsec', phasecenter='J2000 19h59m28.449 40d44m01.199', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:14:37 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:14:37 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-10-09 02:14:37 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-10-09 02:14:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-10-09 02:14:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-10-09 02:14:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:14:37 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-10-09 02:14:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift_tclean_phasecenter] with ftmachine : wprojectft 2026-10-09 02:14:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 11.12 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:14:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:14:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift_tclean_phasecenter] : hogbom 2026-10-09 02:14:37 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:14:37 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-10-09 02:14:37 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-10-09 02:14:37 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-10-09 02:14:37 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-10-09 02:15:14 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-10-09 02:15:14 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 15884 MB 2026-10-09 02:15:17 INFO SIImageStore::calcSensitivity [im2_post_phaseshift_tclean_phasecenter] Theoretical sensitivity (Jy/bm):0.00204403 2026-10-09 02:15:17 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.069981 2026-10-09 02:15:17 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-10-09 02:15:17 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:15:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:15:21 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift_tclean_phasecenter] : Restoring model image. 2026-10-09 02:15:21 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-10-09 02:15:21 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-10-09 02:15:21 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift_tclean_phasecenter'... Found these, writing history into them: ['im2_post_phaseshift_tclean_phasecenter.image', 'im2_post_phaseshift_tclean_phasecenter.psf', 'im2_post_phaseshift_tclean_phasecenter.sumwt', 'im2_post_phaseshift_tclean_phasecenter.residual', 'im2_post_phaseshift_tclean_phasecenter.model', 'im2_post_phaseshift_tclean_phasecenter.pb'] 2026-10-09 02:15:21 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:14:37.173185 End time: 2026-10-09 02:15:20.855291 2026-10-09 02:15:21 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:15:21 INFO tclean::::casa ########################################## Image value at source locations Original MS : {'unit': 'Jy/beam', 'value': 1.0387226343154907} and {'unit': 'Jy/beam', 'value': 5.590171813964844} Phase shifted MS : {'unit': 'Jy/beam', 'value': 1.038696050643921} and {'unit': 'Jy/beam', 'value': 5.589254856109619} .2026-10-09 02:15:22 INFO phaseshift::::casa ########################################## 2026-10-09 02:15:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:15:22 INFO phaseshift::::casa phaseshift( vis='ngc_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='1', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 23h11m54 61d10m54' ) 2026-10-09 02:15:22 INFO MSTransformManager::parseMsSpecParams Input file name is ngc_copy.ms 2026-10-09 02:15:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:15:22 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 02:15:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:15:22 INFO MSTransformManager::parseDataSelParams spw selection is 1 2026-10-09 02:15:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:15:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:15:22 INFO MSTransformManager::initDataSelectionParams Selected SPWs Ids are Axis Lengths: [1, 4] (NB: Matrix in Row/Column order) 2026-10-09 02:15:22 INFO MSTransformManager::initDataSelectionParams+ [1, 0, 4, 1] 2026-10-09 02:15:22 INFO MSTransformManager::open Select data 2026-10-09 02:15:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:15:22 INFO MSTransformDataHandler::makeSelection 13338 out of 26676 rows are going to be considered due to the selection criteria. 2026-10-09 02:15:22 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:15:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 23h11m54 61d10m54' successfully parsed 2026-10-09 02:15:22 INFO phaseshift::::casa Shift phase center 2026-10-09 02:15:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:15:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:15:21.940286 End time: 2026-10-09 02:15:22.362778 2026-10-09 02:15:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:15:22 INFO phaseshift::::casa ########################################## .2026-10-09 02:15:23 INFO phaseshift::::casa ########################################## 2026-10-09 02:15:23 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:15:23 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-09 02:15:23 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 02:15:23 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:15:23 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 02:15:23 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:15:23 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:15:23 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:15:23 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:15:23 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:15:23 INFO MSTransformManager::open Select data 2026-10-09 02:15:23 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:15:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:15:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-09 02:15:24 INFO phaseshift::::casa Shift phase center 2026-10-09 02:15:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:15:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:15:23.351449 End time: 2026-10-09 02:15:25.103591 2026-10-09 02:15:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:15:25 INFO phaseshift::::casa ########################################## .2026-10-09 02:15:26 INFO phaseshift::::casa ########################################## 2026-10-09 02:15:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:15:26 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='0', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-10-09 02:15:26 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:15:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:15:26 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:15:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:15:26 INFO MSTransformManager::parseDataSelParams field selection is 0 2026-10-09 02:15:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:15:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:15:26 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:15:26 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:15:26 INFO MSTransformManager::open Select data 2026-10-09 02:15:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:15:26 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-09 02:15:26 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:15:26 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-10-09 02:15:26 INFO phaseshift::::casa Shift phase center 2026-10-09 02:15:26 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:15:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:15:25.656074 End time: 2026-10-09 02:15:25.949599 2026-10-09 02:15:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:15:26 INFO phaseshift::::casa ########################################## 2026-10-09 02:15:26 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-09 02:15:26 INFO tclean::::casa ########################################## 2026-10-09 02:15:26 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:15:26 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:15:26 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:15:26 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:15:26 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-09 02:15:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:15:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:15:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:15:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-10-09 02:15:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:15:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.11 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:15:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:15:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:15:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:15:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-09 02:15:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021704 2026-10-09 02:15:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-09 02:15:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:15:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:15:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:15:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:15:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:15:27 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:15:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:15:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-10-09 02:15:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:15:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:15:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:15:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:15:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:15:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-10-09 02:15:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-10-09 02:15:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:15:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:15:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-10-09 02:15:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:15:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-10-09 02:15:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-10-09 02:15:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:15:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:15:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-10-09 02:15:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:15:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-10-09 02:15:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-10-09 02:15:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:15:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:15:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-10-09 02:15:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:15:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:15:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:15:28 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-09 02:15:28 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:15:28 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:15:26.106955 End time: 2026-10-09 02:15:27.620561 2026-10-09 02:15:28 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:15:28 INFO tclean::::casa ########################################## 2026-10-09 02:15:28 INFO imstat::::casa ########################################## 2026-10-09 02:15:28 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:15:28 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:15:28 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:15:28 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:15:28 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:15:28 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:15:28 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:15:28 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz to 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz) 2026-10-09 02:15:28 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:15:28 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:15:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:15:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:15:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-10-09 02:15:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-10-09 02:15:28 INFO imstat:::: Values --- 2026-10-09 02:15:28 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-10-09 02:15:28 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:15:28 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:15:28 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-10-09 02:15:28 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-10-09 02:15:28 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-10-09 02:15:28 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-10-09 02:15:28 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-10-09 02:15:28 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-10-09 02:15:28 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-10-09 02:15:28 INFO imstat:::: Statistics --- 2026-10-09 02:15:28 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-10-09 02:15:28 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-10-09 02:15:28 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-10-09 02:15:28 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-10-09 02:15:28 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-10-09 02:15:28 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-10-09 02:15:28 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-10-09 02:15:28 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-10-09 02:15:28 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-10-09 02:15:28 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:15:28 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:15:28 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:15:28 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:15:28 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:15:28 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:15:28 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.059610e+02 9.246232e-03 1.521305e-01 1.518505e-01 -1.228298e-04 4.999997e+00 2026-10-09 02:15:28 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:15:27.631594 End time: 2026-10-09 02:15:27.657963 2026-10-09 02:15:28 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:15:28 INFO imstat::::casa ########################################## 2026-10-09 02:15:28 INFO phaseshift::::casa ########################################## 2026-10-09 02:15:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:15:28 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='fake', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-10-09 02:15:28 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:15:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:15:28 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:15:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:15:28 INFO MSTransformManager::parseDataSelParams field selection is fake 2026-10-09 02:15:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:15:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:15:28 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:15:28 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:15:28 INFO MSTransformManager::open Select data 2026-10-09 02:15:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:15:28 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-09 02:15:28 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:15:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-10-09 02:15:28 INFO phaseshift::::casa Shift phase center 2026-10-09 02:15:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:15:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:15:27.670773 End time: 2026-10-09 02:15:28.027171 2026-10-09 02:15:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:15:28 INFO phaseshift::::casa ########################################## 2026-10-09 02:15:28 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-10-09 02:15:28 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-09 02:15:28 INFO tclean::::casa ########################################## 2026-10-09 02:15:28 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:15:28 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:15:28 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:15:28 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:15:28 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-09 02:15:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:15:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:15:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:15:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-10-09 02:15:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:15:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.11 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:15:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:15:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:15:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:15:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-09 02:15:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011857 2026-10-09 02:15:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-09 02:15:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:15:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:15:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:15:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:15:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:15:28 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:15:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:15:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-10-09 02:15:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:15:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:15:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:15:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:15:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:15:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-10-09 02:15:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-10-09 02:15:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:15:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:15:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-10-09 02:15:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:15:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-10-09 02:15:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-10-09 02:15:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:15:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:15:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-10-09 02:15:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:15:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-10-09 02:15:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-10-09 02:15:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:15:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:15:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-10-09 02:15:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:15:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:15:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:15:29 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-09 02:15:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:15:29 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:15:28.063845 End time: 2026-10-09 02:15:29.317859 2026-10-09 02:15:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:15:29 INFO tclean::::casa ########################################## 2026-10-09 02:15:29 INFO imstat::::casa ########################################## 2026-10-09 02:15:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:15:29 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:15:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:15:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:15:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:15:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:15:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:15:29 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz to 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz) 2026-10-09 02:15:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:15:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:15:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:15:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:15:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-10-09 02:15:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-10-09 02:15:29 INFO imstat:::: Values --- 2026-10-09 02:15:29 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-10-09 02:15:29 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:15:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:15:29 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-10-09 02:15:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-10-09 02:15:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-10-09 02:15:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-10-09 02:15:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-10-09 02:15:29 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-10-09 02:15:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-10-09 02:15:29 INFO imstat:::: Statistics --- 2026-10-09 02:15:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-10-09 02:15:29 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-10-09 02:15:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-10-09 02:15:29 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-10-09 02:15:29 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-10-09 02:15:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-10-09 02:15:29 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-10-09 02:15:29 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-10-09 02:15:29 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-10-09 02:15:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:15:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:15:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:15:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:15:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:15:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:15:29 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.059610e+02 9.246232e-03 1.521305e-01 1.518505e-01 -1.228298e-04 4.999997e+00 2026-10-09 02:15:29 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:15:29.321464 End time: 2026-10-09 02:15:29.351867 2026-10-09 02:15:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:15:29 INFO imstat::::casa ########################################## 2026-10-09 02:15:29 INFO phaseshift::::casa ########################################## 2026-10-09 02:15:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:15:29 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-10-09 02:15:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:15:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:15:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:15:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:15:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:15:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:15:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:15:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:15:29 INFO MSTransformManager::open Select data 2026-10-09 02:15:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:15:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:15:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-10-09 02:15:30 INFO phaseshift::::casa Shift phase center 2026-10-09 02:15:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:15:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:15:29.367761 End time: 2026-10-09 02:15:29.789974 2026-10-09 02:15:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:15:30 INFO phaseshift::::casa ########################################## 2026-10-09 02:15:30 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-09 02:15:30 INFO tclean::::casa ########################################## 2026-10-09 02:15:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:15:30 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:15:30 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:15:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:15:30 INFO SynthesisImagerVi2::selectData NRows selected : 7020 2026-10-09 02:15:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:15:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:15:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:15:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:15:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:15:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.11 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:15:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:15:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:15:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:15:30 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00843949 2026-10-09 02:15:30 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009784 2026-10-09 02:15:30 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-10-09 02:15:30 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:15:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:15:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:15:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:15:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:15:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:15:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6069034934043884, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:15:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.606903, CycleNiter=20, Gain=0.3 2026-10-09 02:15:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:15:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:15:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:15:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:15:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07140088081359863, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:15:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0714009, CycleNiter=14, Gain=0.3 2026-10-09 02:15:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-10-09 02:15:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:15:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:15:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-10-09 02:15:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00840018317103386, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:15:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00840018, CycleNiter=8, Gain=0.3 2026-10-09 02:15:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-10-09 02:15:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:15:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:15:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814189, over full image : 0.00814189 2026-10-09 02:15:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009882674785330892, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:15:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000988267, CycleNiter=2, Gain=0.3 2026-10-09 02:15:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814189->0.00279267, Reached cycleniter. 2026-10-09 02:15:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:15:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:15:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0027928, over full image : 0.0027928 2026-10-09 02:15:31 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:15:31 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:15:31 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:15:31 INFO SIImageStore::restore Beam for chan : 0 : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-10-09 02:15:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:15:31 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:15:29.963125 End time: 2026-10-09 02:15:31.393840 2026-10-09 02:15:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:15:31 INFO tclean::::casa ########################################## 2026-10-09 02:15:31 INFO imstat::::casa ########################################## 2026-10-09 02:15:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:15:31 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:15:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:15:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:15:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:15:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:15:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:15:31 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.888, +39.49.25.864, I, 999981604.64Hz to 19:52:21.069, +40.23.25.888, I, 999981604.64Hz) 2026-10-09 02:15:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:15:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:15:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:15:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:15:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 999981604.64Hz 2026-10-09 02:15:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 999981604.64Hz 2026-10-09 02:15:31 INFO imstat:::: Values --- 2026-10-09 02:15:31 INFO imstat:::: -- flux density [flux]: 4.99444 Jy 2026-10-09 02:15:31 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:15:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:15:31 INFO imstat:::: -- minimum value [min]: -9.70533e-05 Jy/beam 2026-10-09 02:15:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-10-09 02:15:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [158, 70, 0, 0] 2026-10-09 02:15:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981604.64Hz 2026-10-09 02:15:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:29.120, +39.58.47.882, I, 999981604.64Hz 2026-10-09 02:15:31 INFO imstat:::: -- Sum of pixel values [sum]: 610.203 Jy/beam 2026-10-09 02:15:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1527.26 Jy/beam.Jy/beam 2026-10-09 02:15:31 INFO imstat:::: Statistics --- 2026-10-09 02:15:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00931096 Jy/beam 2026-10-09 02:15:31 INFO imstat:::: -- Variance of the pixel values : 0.0232178 Jy/beam 2026-10-09 02:15:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152374 Jy/beam 2026-10-09 02:15:31 INFO imstat:::: -- Root mean square [rms]: 0.152657 Jy/beam 2026-10-09 02:15:31 INFO imstat:::: -- Median of the pixel values [median]: -1.85752e-05 Jy/beam 2026-10-09 02:15:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.83975e-05 Jy/beam 2026-10-09 02:15:31 INFO imstat:::: -- IQR [quartile]: 3.74524e-05 Jy/beam 2026-10-09 02:15:31 INFO imstat:::: -- First quartile [q1]: -3.53147e-05 Jy/beam 2026-10-09 02:15:31 INFO imstat:::: -- Third quartile [q3]: 2.13765e-06 Jy/beam 2026-10-09 02:15:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:15:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:15:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:15:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:15:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:15:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:15:31 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.102032e+02 9.310961e-03 1.526569e-01 1.523738e-01 -9.705327e-05 4.999997e+00 2026-10-09 02:15:31 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:15:31.396451 End time: 2026-10-09 02:15:31.420062 2026-10-09 02:15:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:15:31 INFO imstat::::casa ########################################## 2026-10-09 02:15:31 INFO phaseshift::::casa ########################################## 2026-10-09 02:15:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:15:31 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='1', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 50.108888889deg' ) 2026-10-09 02:15:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:15:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:15:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:15:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:15:31 INFO MSTransformManager::parseDataSelParams field selection is 1 2026-10-09 02:15:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:15:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:15:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:15:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:15:31 INFO MSTransformManager::open Select data 2026-10-09 02:15:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:15:31 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-09 02:15:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:15:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-10-09 02:15:32 INFO phaseshift::::casa Shift phase center 2026-10-09 02:15:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:15:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:15:31.435361 End time: 2026-10-09 02:15:31.847404 2026-10-09 02:15:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:15:32 INFO phaseshift::::casa ########################################## 2026-10-09 02:15:32 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-09 02:15:32 INFO tclean::::casa ########################################## 2026-10-09 02:15:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:15:32 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 ) 2026-10-09 02:15:32 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:15:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:15:32 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-09 02:15:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:15:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:15:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:15:32 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-10-09 02:15:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:15:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.11 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:15:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:15:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:15:32 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:15:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-09 02:15:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021559 2026-10-09 02:15:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-09 02:15:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:15:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:15:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-10-09 02:15:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:15:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:15:33 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-10-09 02:15:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:15:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-10-09 02:15:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-10-09 02:15:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:15:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:15:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-10-09 02:15:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:15:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:15:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:15:33 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-09 02:15:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:15:33 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:15:32.039744 End time: 2026-10-09 02:15:33.024937 2026-10-09 02:15:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:15:33 INFO tclean::::casa ########################################## 2026-10-09 02:15:33 INFO imstat::::casa ########################################## 2026-10-09 02:15:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:15:33 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:15:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:15:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:15:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:15:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:15:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:15:33 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz to 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz) 2026-10-09 02:15:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:15:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:15:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:15:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:15:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-10-09 02:15:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-10-09 02:15:33 INFO imstat:::: Values --- 2026-10-09 02:15:33 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-10-09 02:15:33 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:15:33 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-10-09 02:15:33 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-10-09 02:15:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-10-09 02:15:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-10-09 02:15:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-10-09 02:15:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-10-09 02:15:33 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-10-09 02:15:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-10-09 02:15:33 INFO imstat:::: Statistics --- 2026-10-09 02:15:33 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-10-09 02:15:33 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-10-09 02:15:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-10-09 02:15:33 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-10-09 02:15:33 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-10-09 02:15:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-10-09 02:15:33 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-10-09 02:15:33 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-10-09 02:15:33 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-10-09 02:15:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:15:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:15:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:15:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:15:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:15:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:15:33 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 -2.993095e+01 -4.567100e-04 5.968411e-02 5.968282e-02 -1.468002e-01 2.858716e-01 2026-10-09 02:15:33 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:15:33.027727 End time: 2026-10-09 02:15:33.057934 2026-10-09 02:15:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:15:33 INFO imstat::::casa ########################################## 2026-10-09 02:15:33 INFO phaseshift::::casa ########################################## 2026-10-09 02:15:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:15:33 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='pretend', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 50.108888889deg' ) 2026-10-09 02:15:33 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:15:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:15:33 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:15:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:15:33 INFO MSTransformManager::parseDataSelParams field selection is pretend 2026-10-09 02:15:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:15:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:15:33 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:15:33 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:15:33 INFO MSTransformManager::open Select data 2026-10-09 02:15:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:15:33 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-09 02:15:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:15:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-10-09 02:15:33 INFO phaseshift::::casa Shift phase center 2026-10-09 02:15:33 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:15:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:15:33.078333 End time: 2026-10-09 02:15:33.503367 2026-10-09 02:15:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:15:34 INFO phaseshift::::casa ########################################## 2026-10-09 02:15:34 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-10-09 02:15:34 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-09 02:15:34 INFO tclean::::casa ########################################## 2026-10-09 02:15:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:15:34 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:15:34 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:15:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:15:34 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-09 02:15:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:15:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:15:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:15:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-10-09 02:15:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:15:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.11 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:15:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:15:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:15:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:15:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-09 02:15:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010005 2026-10-09 02:15:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-09 02:15:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:15:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:15:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-10-09 02:15:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:15:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:15:34 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-10-09 02:15:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:15:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-10-09 02:15:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-10-09 02:15:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:15:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:15:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-10-09 02:15:34 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:15:34 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:15:34 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:15:34 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-09 02:15:34 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:15:34 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:15:33.545425 End time: 2026-10-09 02:15:34.302751 2026-10-09 02:15:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:15:34 INFO tclean::::casa ########################################## 2026-10-09 02:15:34 INFO imstat::::casa ########################################## 2026-10-09 02:15:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:15:34 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:15:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:15:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:15:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:15:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:15:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:15:34 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz to 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz) 2026-10-09 02:15:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:15:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:15:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:15:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:15:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-10-09 02:15:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-10-09 02:15:34 INFO imstat:::: Values --- 2026-10-09 02:15:34 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-10-09 02:15:34 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:15:34 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-10-09 02:15:34 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-10-09 02:15:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-10-09 02:15:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-10-09 02:15:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-10-09 02:15:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-10-09 02:15:34 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-10-09 02:15:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-10-09 02:15:34 INFO imstat:::: Statistics --- 2026-10-09 02:15:34 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-10-09 02:15:34 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-10-09 02:15:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-10-09 02:15:34 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-10-09 02:15:34 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-10-09 02:15:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-10-09 02:15:34 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-10-09 02:15:34 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-10-09 02:15:34 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-10-09 02:15:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:15:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:15:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:15:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:15:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:15:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:15:34 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 -2.993095e+01 -4.567100e-04 5.968411e-02 5.968282e-02 -1.468002e-01 2.858716e-01 2026-10-09 02:15:34 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:15:34.305630 End time: 2026-10-09 02:15:34.335192 2026-10-09 02:15:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:15:34 INFO imstat::::casa ########################################## .2026-10-09 02:15:35 INFO tclean::::casa ########################################## 2026-10-09 02:15:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:15:35 INFO tclean::::casa tclean( vis='sim_data.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_orig', imsize=2048, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:15:35 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:15:35 INFO SynthesisImagerVi2::selectData MS : sim_data.ms | [Opened in readonly mode] 2026-10-09 02:15:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:15:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-10-09 02:15:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-10-09 02:15:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:15:35 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [9.99981e+08] at [0] with increment [1e+08] 2026-10-09 02:15:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_orig] with ftmachine : wprojectft 2026-10-09 02:15:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 11.11 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:15:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:15:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_orig] : hogbom 2026-10-09 02:15:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:15:35 INFO task_tclean::WPConvFunc::findConvFunction W projection using 128 planes 2026-10-09 02:15:35 INFO task_tclean::WPConvFunc::findConvFunction Using maximum possible W = 6445.78 (wavelengths) 2026-10-09 02:15:35 INFO task_tclean::WPConvFunc::findConvFunction Typical wavelength = 0.299799 (m) 2026-10-09 02:15:35 INFO task_tclean::WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.399639 wavelengths per pixel 2026-10-09 02:16:10 INFO task_tclean::WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 48, 48, 48, 48, 52, 52, 52, 52, 52, 56, 56, 56, 56, 60, 60, 60, 60, 64, 64, 64, 64, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 80, 80, 80, 80, 84, 84, 84, 88, 88, 88, 92, 92, 92, 96, 96, 96, 100, 100, 100, 104, 104, 108, 108, 108, 112, 112, 112, 116, 116] pixels in Fourier plane 2026-10-09 02:16:10 INFO task_tclean::WPConvFunc::findConvFunction Memory used in gridding function = 14 MB from maximum 15884 MB 2026-10-09 02:16:13 INFO task_tclean::SIImageStore::calcSensitivity [im_orig] Theoretical sensitivity (Jy/bm):0.00889437 2026-10-09 02:16:13 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.078378 2026-10-09 02:16:13 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-10-09 02:16:13 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:16:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:16:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 4.94899 2026-10-09 02:16:16 INFO SynthesisDeconvolver::setupMask [im_orig] Initializing new mask to 1.0 for the full image 2026-10-09 02:16:16 INFO SynthesisDeconvolver::setupMask [im_orig] Number of pixels in the clean mask : 4.1943e+06 out of a total of 4.1943e+06 pixels. [ 100 % ] 2026-10-09 02:16:16 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 4.94899, over full image : 4.94899 2026-10-09 02:16:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.5971387624740601, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:16 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.597139, CycleNiter=20, Gain=0.3 2026-10-09 02:16:17 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=0->4.6028, peakres=4.94899->0.435227, Reached cyclethreshold. 2026-10-09 02:16:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 7 iterations. 2026-10-09 02:16:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:16:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.45574, over full image : 0.45574 2026-10-09 02:16:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 13, 'cyclethreshold': 0.05498892068862915, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:21 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.0549889, CycleNiter=13, Gain=0.3 2026-10-09 02:16:22 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=4.6028->5.02619, peakres=0.45574->0.0435268, Reached cyclethreshold. 2026-10-09 02:16:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 14 iterations. 2026-10-09 02:16:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:16:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0416506, over full image : 0.0416506 2026-10-09 02:16:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 6, 'cyclethreshold': 0.005025505553930998, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:27 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.00502551, CycleNiter=6, Gain=0.3 2026-10-09 02:16:27 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->6 [6], model=5.02619->5.04001, peakres=0.0416506->0.0226678, Reached cycleniter. 2026-10-09 02:16:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:16:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:16:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.022671, over full image : 0.022671 2026-10-09 02:16:32 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:16:32 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:16:32 INFO SDAlgorithmBase::restore [im_orig] : Restoring model image. 2026-10-09 02:16:32 INFO SIImageStore::restore Beam for chan : 0 : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-10-09 02:16:33 INFO tclean::::casa Searching for images with prefix 'im_orig'... Found these, writing history into them: ['im_orig.psf', 'im_orig.image', 'im_orig.residual', 'im_orig.pb', 'im_orig.model', 'im_orig.sumwt', 'im_orig.mask'] 2026-10-09 02:16:33 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:15:34.915151 End time: 2026-10-09 02:16:32.932781 2026-10-09 02:16:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:16:33 INFO tclean::::casa ########################################## 2026-10-09 02:16:33 INFO imstat::::casa ########################################## 2026-10-09 02:16:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:16:33 INFO imstat::::casa imstat( imagename='im_orig.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:16:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:16:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:16:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:16:33 INFO imstat::image::statistics Determining stats for image im_orig.image 2026-10-09 02:16:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:33 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [2047, 2047, 0, 0] (20:11:05.220, +38.21.11.967, I, 999980841.3Hz to 19:47:03.322, +42.54.02.996, I, 999980841.3Hz) 2026-10-09 02:16:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:16:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:16:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:16:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [2047, 2047, 0, 0] 2026-10-09 02:16:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 20:11:05.220, +38.21.11.967, I, 999980841.3Hz 2026-10-09 02:16:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:47:03.322, +42.54.02.996, I, 999980841.3Hz 2026-10-09 02:16:33 INFO imstat:::: Values --- 2026-10-09 02:16:33 INFO imstat:::: -- flux density [flux]: 5.2713 Jy 2026-10-09 02:16:33 INFO imstat:::: -- number of points [npts]: 4.1943e+06 2026-10-09 02:16:33 INFO imstat:::: -- maximum value [max]: 4.97713 Jy/beam 2026-10-09 02:16:33 INFO imstat:::: -- minimum value [min]: -0.022671 Jy/beam 2026-10-09 02:16:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [1509, 773, 0, 0] 2026-10-09 02:16:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [1708, 965, 0, 0] 2026-10-09 02:16:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.302, +40.06.02.372, I, 999980841.3Hz 2026-10-09 02:16:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:51:28.525, +40.31.07.260, I, 999980841.3Hz 2026-10-09 02:16:33 INFO imstat:::: -- Sum of pixel values [sum]: 641.87 Jy/beam 2026-10-09 02:16:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1619.58 Jy/beam.Jy/beam 2026-10-09 02:16:33 INFO imstat:::: Statistics --- 2026-10-09 02:16:33 INFO imstat:::: -- Mean of the pixel values [mean]: 0.000153034 Jy/beam 2026-10-09 02:16:33 INFO imstat:::: -- Variance of the pixel values : 0.000386116 Jy/beam 2026-10-09 02:16:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0196498 Jy/beam 2026-10-09 02:16:33 INFO imstat:::: -- Root mean square [rms]: 0.0196504 Jy/beam 2026-10-09 02:16:33 INFO imstat:::: -- Median of the pixel values [median]: 4.61875e-06 Jy/beam 2026-10-09 02:16:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.003161 Jy/beam 2026-10-09 02:16:33 INFO imstat:::: -- IQR [quartile]: 0.00632194 Jy/beam 2026-10-09 02:16:33 INFO imstat:::: -- First quartile [q1]: -0.00315521 Jy/beam 2026-10-09 02:16:33 INFO imstat:::: -- Third quartile [q3]: 0.00316673 Jy/beam 2026-10-09 02:16:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:16:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:16:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:16:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:16:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:16:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:16:33 INFO imstat::ImageStatsCalculator::statistics 4.194304e+06 6.418701e+02 1.530337e-04 1.965042e-02 1.964982e-02 -2.267100e-02 4.977134e+00 2026-10-09 02:16:33 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:16:32.934933 End time: 2026-10-09 02:16:33.236021 2026-10-09 02:16:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:16:33 INFO imstat::::casa ########################################## 2026-10-09 02:16:33 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:16:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:33 INFO ImageRegion::fromRecord+ [1499, 763, 0, 0] to [1519, 783, 0, 0] (19:53:57.382, +40.04.43.647, I, 999980841.3Hz to 19:53:43.216, +40.07.21.070, I, 999980841.3Hz) 2026-10-09 02:16:33 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:16:33 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:16:33 2026****** 2026-10-09 02:16:33 INFO ImageFitter::fit+ 2026-10-09 02:16:33 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:16:33 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_orig.image 2026-10-09 02:16:33 INFO ImageFitter::fit+ --- region: 2026-10-09 02:16:33 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:16:33 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:16:33 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:16:33 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:16:33 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:16:33 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:16:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:33 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.843, +40.05.23.013 to 19:53:46.759, +40.06.41.724) 2026-10-09 02:16:33 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29832 Jy 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00459192 Jy 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85855 Jy 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00458731 Jy 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ Fit on im_orig.image component 0 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.9885 +/- 0.0032 s (0.0367 arcsec along great circle) 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.0594 +/- 0.0281 arcsec 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- ra: 1509.4535 +/- 0.0046 pixels 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- dec: 772.7181 +/- 0.0035 pixels 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.4778 +/- 0.0014 arcmin 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.2915 +/- 0.0011 arcmin 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.42 +/- 0.26 deg 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.70 arcsec 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.54 arcsec 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- position angle: -89.60 deg 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ Component is a point source 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ An upper limit on its size cannot be determined 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- Integrated: 5.0049 +/- 0.0079 Jy 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- Peak: 5.0102 +/- 0.0046 Jy/beam 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:16:33 INFO ImageFitter::_fitLoop+ --- frequency: 999.9808 MHz (29.97982 cm) 2026-10-09 02:16:33 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:16:33 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-09 02:16:33 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:16:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:16:33 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:16:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:16:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:16:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:16:33 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:16:33 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:16:33 INFO MSTransformManager::open Select data 2026-10-09 02:16:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:16:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:16:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-09 02:16:34 INFO phaseshift::::casa Shift phase center 2026-10-09 02:16:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:16:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:16:33.369577 End time: 2026-10-09 02:16:33.773519 2026-10-09 02:16:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:16:34 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:34 INFO tclean::::casa ########################################## 2026-10-09 02:16:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:16:34 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:16:34 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:16:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:16:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:16:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:16:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:16:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:16:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:16:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:16:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:16:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:16:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:16:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011531 2026-10-09 02:16:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:16:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:16:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:16:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:16:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:16:35 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:16:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:16:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:16:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:16:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:16:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:16:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:16:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:16:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:16:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:16:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:16:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:16:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:16:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:16:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:16:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:16:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:16:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:16:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:16:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:16:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:16:35 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:16:35 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:16:35 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:16:35 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:35 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:16:35 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:16:34.116843 End time: 2026-10-09 02:16:35.341623 2026-10-09 02:16:35 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:16:35 INFO tclean::::casa ########################################## 2026-10-09 02:16:35 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:16:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:35 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:16:35 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:16:35 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:16:35 2026****** 2026-10-09 02:16:35 INFO ImageFitter::fit+ 2026-10-09 02:16:35 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:16:35 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:16:35 INFO ImageFitter::fit+ --- region: 2026-10-09 02:16:35 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:16:35 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:16:35 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:16:35 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:16:35 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:16:35 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:16:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:35 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:16:35 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:16:35 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:16:35 INFO imstat::::casa ########################################## 2026-10-09 02:16:35 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:16:35 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:16:35 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:16:35 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:16:35 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:16:35 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:16:35 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:35 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:16:35 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:16:35 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:16:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:16:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:16:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:16:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:16:35 INFO imstat:::: Values --- 2026-10-09 02:16:35 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:16:35 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:16:35 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:16:35 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-09 02:16:35 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:16:35 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:16:35 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:16:35 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:16:35 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:16:35 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:16:35 INFO imstat:::: Statistics --- 2026-10-09 02:16:35 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:16:35 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:16:35 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:16:35 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:16:35 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-09 02:16:35 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-09 02:16:35 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-09 02:16:35 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-09 02:16:35 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-09 02:16:35 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:16:35 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:16:35 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:16:35 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:16:35 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:16:35 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:16:35 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 2026-10-09 02:16:35 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:16:35.381888 End time: 2026-10-09 02:16:35.400099 2026-10-09 02:16:35 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:16:35 INFO imstat::::casa ########################################## 2026-10-09 02:16:35 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:16:35 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 02:40:24.0000' ) 2026-10-09 02:16:35 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:16:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:16:35 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:16:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:16:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:16:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:16:35 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:16:35 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:16:35 INFO MSTransformManager::open Select data 2026-10-09 02:16:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:16:36 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 02:16:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 02:40:24.0000' successfully parsed 2026-10-09 02:16:36 INFO phaseshift::::casa Shift phase center 2026-10-09 02:16:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:16:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:16:35.412595 End time: 2026-10-09 02:16:35.801836 2026-10-09 02:16:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:16:36 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:36 INFO tclean::::casa ########################################## 2026-10-09 02:16:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:16:36 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:16:36 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:16:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:16:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:16:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:16:36 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:16:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:16:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:16:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:16:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:16:36 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:16:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:16:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011054 2026-10-09 02:16:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:16:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:16:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:16:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:16:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:16:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:16:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:16:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:16:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:16:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:16:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:16:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:16:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:16:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:16:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:16:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:16:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:16:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:16:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:16:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:16:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:16:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:16:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:16:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:16:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:16:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:16:37 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:16:37 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:16:37 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:16:37 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:37 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:16:37 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:16:35.819783 End time: 2026-10-09 02:16:37.134139 2026-10-09 02:16:37 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:16:37 INFO tclean::::casa ########################################## 2026-10-09 02:16:37 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:16:37 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:37 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:16:37 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:16:37 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:16:37 2026****** 2026-10-09 02:16:37 INFO ImageFitter::fit+ 2026-10-09 02:16:37 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:16:37 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:16:37 INFO ImageFitter::fit+ --- region: 2026-10-09 02:16:37 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:16:37 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:16:37 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:16:37 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:16:37 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:16:37 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:16:37 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:37 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:16:37 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:16:37 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:16:37 INFO imstat::::casa ########################################## 2026-10-09 02:16:37 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:16:37 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:16:37 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:16:37 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:16:37 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:16:37 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:16:37 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:37 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:16:37 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:16:37 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:16:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:16:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:16:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:16:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:16:37 INFO imstat:::: Values --- 2026-10-09 02:16:37 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:16:37 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:16:37 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:16:37 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-09 02:16:37 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:16:37 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:16:37 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:16:37 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:16:37 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:16:37 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:16:37 INFO imstat:::: Statistics --- 2026-10-09 02:16:37 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:16:37 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:16:37 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:16:37 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:16:37 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-09 02:16:37 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-09 02:16:37 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-09 02:16:37 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-09 02:16:37 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-09 02:16:37 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:16:37 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:16:37 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:16:37 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:16:37 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:16:37 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:16:37 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-10-09 02:16:37 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:16:37.194731 End time: 2026-10-09 02:16:37.226446 2026-10-09 02:16:37 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:16:37 INFO imstat::::casa ########################################## 2026-10-09 02:16:37 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:16:37 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.100000000deg' ) 2026-10-09 02:16:37 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:16:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:16:37 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:16:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:16:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:16:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:16:37 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:16:37 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:16:37 INFO MSTransformManager::open Select data 2026-10-09 02:16:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:16:37 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:16:37 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.100000000deg' successfully parsed 2026-10-09 02:16:37 INFO phaseshift::::casa Shift phase center 2026-10-09 02:16:38 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:16:38 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:16:37.245381 End time: 2026-10-09 02:16:37.688377 2026-10-09 02:16:38 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:16:38 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:38 INFO tclean::::casa ########################################## 2026-10-09 02:16:38 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:16:38 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:16:38 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:16:38 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:16:38 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:16:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:38 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:16:38 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:16:38 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:16:38 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:16:38 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:16:38 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:16:38 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:16:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:16:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009861 2026-10-09 02:16:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:16:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:16:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:16:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:16:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:16:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:16:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:16:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:16:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:16:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:16:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:16:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:16:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:16:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:16:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:16:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:16:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:16:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:16:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:16:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:16:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:16:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:16:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:16:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:16:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:16:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:16:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:16:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:16:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:16:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:39 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:16:39 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:16:37.707009 End time: 2026-10-09 02:16:39.168213 2026-10-09 02:16:39 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:16:39 INFO tclean::::casa ########################################## 2026-10-09 02:16:39 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:16:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:39 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:16:39 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:16:39 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:16:39 2026****** 2026-10-09 02:16:39 INFO ImageFitter::fit+ 2026-10-09 02:16:39 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:16:39 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:16:39 INFO ImageFitter::fit+ --- region: 2026-10-09 02:16:39 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:16:39 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:16:39 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:16:39 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:16:39 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:16:39 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:16:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:39 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:16:39 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:16:39 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:16:39 INFO imstat::::casa ########################################## 2026-10-09 02:16:39 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:16:39 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:16:39 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:16:39 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:16:39 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:16:39 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:16:39 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:39 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:16:39 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:16:39 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:16:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:16:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:16:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:16:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:16:39 INFO imstat:::: Values --- 2026-10-09 02:16:39 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:16:39 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:16:39 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:16:39 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-09 02:16:39 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:16:39 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:16:39 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:16:39 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:16:39 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:16:39 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:16:39 INFO imstat:::: Statistics --- 2026-10-09 02:16:39 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:16:39 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:16:39 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:16:39 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:16:39 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-09 02:16:39 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-09 02:16:39 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-09 02:16:39 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-09 02:16:39 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-09 02:16:39 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:16:39 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:16:39 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:16:39 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:16:39 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:16:39 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:16:39 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-10-09 02:16:39 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:16:39.223146 End time: 2026-10-09 02:16:39.244691 2026-10-09 02:16:39 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:16:39 INFO imstat::::casa ########################################## 2026-10-09 02:16:39 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:39 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:16:39 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 0.699877030rad' ) 2026-10-09 02:16:39 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:16:39 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:16:39 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:16:39 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:16:39 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:16:39 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:16:39 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:16:39 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:16:39 INFO MSTransformManager::open Select data 2026-10-09 02:16:39 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:16:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:16:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 0.699877030rad' successfully parsed 2026-10-09 02:16:39 INFO phaseshift::::casa Shift phase center 2026-10-09 02:16:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:16:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:16:39.258724 End time: 2026-10-09 02:16:39.672736 2026-10-09 02:16:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:16:40 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:40 INFO tclean::::casa ########################################## 2026-10-09 02:16:40 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:16:40 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:16:40 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:16:40 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:16:40 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:16:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:40 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:16:40 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:16:40 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:16:40 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:16:40 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:16:40 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:16:40 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:16:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:16:40 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.013 2026-10-09 02:16:40 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:40 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:16:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:16:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:16:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:16:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:16:40 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:16:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:16:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:16:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:16:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:16:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:16:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:16:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:16:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:16:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:16:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:16:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:16:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:16:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:16:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:16:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:16:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:16:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:16:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:16:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:16:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:16:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:16:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:16:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:16:41 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:41 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:16:41 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:16:39.708859 End time: 2026-10-09 02:16:41.178793 2026-10-09 02:16:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:16:41 INFO tclean::::casa ########################################## 2026-10-09 02:16:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:16:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:41 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:16:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:16:41 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:16:41 2026****** 2026-10-09 02:16:41 INFO ImageFitter::fit+ 2026-10-09 02:16:41 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:16:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:16:41 INFO ImageFitter::fit+ --- region: 2026-10-09 02:16:41 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:16:41 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:16:41 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:16:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:16:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:16:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:16:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:41 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:16:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:16:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:16:41 INFO imstat::::casa ########################################## 2026-10-09 02:16:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:16:41 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:16:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:16:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:16:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:16:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:16:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:41 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:16:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:16:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:16:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:16:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:16:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:16:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:16:41 INFO imstat:::: Values --- 2026-10-09 02:16:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:16:41 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:16:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:16:41 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-10-09 02:16:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:16:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:16:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:16:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 02:16:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:16:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:16:41 INFO imstat:::: Statistics --- 2026-10-09 02:16:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:16:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:16:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:16:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:16:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-10-09 02:16:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-09 02:16:41 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-10-09 02:16:41 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-10-09 02:16:41 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-10-09 02:16:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:16:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:16:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:16:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:16:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:16:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:16:41 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777640e-05 4.999996e+00 2026-10-09 02:16:41 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:16:41.232848 End time: 2026-10-09 02:16:41.254147 2026-10-09 02:16:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:16:41 INFO imstat::::casa ########################################## 2026-10-09 02:16:41 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:16:41 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40d06m00' ) 2026-10-09 02:16:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:16:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:16:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:16:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:16:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:16:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:16:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:16:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:16:41 INFO MSTransformManager::open Select data 2026-10-09 02:16:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:16:41 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:16:41 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40d06m00' successfully parsed 2026-10-09 02:16:41 INFO phaseshift::::casa Shift phase center 2026-10-09 02:16:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:16:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:16:41.267988 End time: 2026-10-09 02:16:41.662394 2026-10-09 02:16:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:16:42 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:42 INFO tclean::::casa ########################################## 2026-10-09 02:16:42 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:16:42 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:16:42 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:16:42 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:16:42 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:16:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:42 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:16:42 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:16:42 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:16:42 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:16:42 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:16:42 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:16:42 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:16:42 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:16:42 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011053 2026-10-09 02:16:42 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:42 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:16:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:16:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:16:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:16:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:16:42 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:16:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:16:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:16:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:16:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:16:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:16:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:16:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:16:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:16:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:16:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:16:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:16:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:16:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:16:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:16:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:16:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:16:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:16:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:16:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:16:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:16:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:16:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:16:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:16:43 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:43 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:16:43 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:16:41.681559 End time: 2026-10-09 02:16:43.033785 2026-10-09 02:16:43 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:16:43 INFO tclean::::casa ########################################## 2026-10-09 02:16:43 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:16:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:43 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:16:43 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:16:43 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:16:43 2026****** 2026-10-09 02:16:43 INFO ImageFitter::fit+ 2026-10-09 02:16:43 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:16:43 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:16:43 INFO ImageFitter::fit+ --- region: 2026-10-09 02:16:43 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:16:43 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:16:43 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:16:43 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:16:43 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:16:43 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:16:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:43 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:16:43 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:16:43 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:16:43 INFO imstat::::casa ########################################## 2026-10-09 02:16:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:16:43 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:16:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:16:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:16:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:16:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:16:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:43 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:16:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:16:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:16:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:16:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:16:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:16:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:16:43 INFO imstat:::: Values --- 2026-10-09 02:16:43 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:16:43 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:16:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:16:43 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-09 02:16:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:16:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:16:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:16:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:16:43 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:16:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:16:43 INFO imstat:::: Statistics --- 2026-10-09 02:16:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:16:43 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:16:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:16:43 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:16:43 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-09 02:16:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-09 02:16:43 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-09 02:16:43 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-09 02:16:43 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-09 02:16:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:16:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:16:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:16:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:16:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:16:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:16:43 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-10-09 02:16:43 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:16:43.077519 End time: 2026-10-09 02:16:43.097957 2026-10-09 02:16:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:16:43 INFO imstat::::casa ########################################## 2026-10-09 02:16:43 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:16:43 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 02:40:24.0000' ) 2026-10-09 02:16:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:16:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:16:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:16:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:16:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:16:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:16:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:16:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:16:43 INFO MSTransformManager::open Select data 2026-10-09 02:16:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:16:43 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 ".". 2026-10-09 02:16:43 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 02:40:24.0000' successfully parsed 2026-10-09 02:16:43 INFO phaseshift::::casa Shift phase center 2026-10-09 02:16:44 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:16:44 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:16:43.111065 End time: 2026-10-09 02:16:43.517711 2026-10-09 02:16:44 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:16:44 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:44 INFO tclean::::casa ########################################## 2026-10-09 02:16:44 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:16:44 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:16:44 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:16:44 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:16:44 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:16:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:44 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:16:44 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:16:44 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:16:44 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:16:44 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:16:44 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:16:44 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:16:44 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:16:44 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.0122 2026-10-09 02:16:44 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:44 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:16:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:16:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:16:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:16:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:16:44 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:16:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:16:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:16:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:16:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:16:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:16:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:16:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:16:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:16:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:16:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:16:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:16:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:16:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:16:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:16:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:16:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:16:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:16:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:16:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:16:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:16:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:16:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:16:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:16:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:45 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:16:45 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:16:43.535299 End time: 2026-10-09 02:16:44.917961 2026-10-09 02:16:45 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:16:45 INFO tclean::::casa ########################################## 2026-10-09 02:16:45 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:16:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:45 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) 2026-10-09 02:16:45 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:16:45 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:16:45 2026****** 2026-10-09 02:16:45 INFO ImageFitter::fit+ 2026-10-09 02:16:45 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:16:45 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:16:45 INFO ImageFitter::fit+ --- region: 2026-10-09 02:16:45 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:16:45 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:16:45 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:16:45 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:16:45 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:16:45 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:16:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:45 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) 2026-10-09 02:16:45 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:16:45 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:16:45 INFO imstat::::casa ########################################## 2026-10-09 02:16:45 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:16:45 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 ) 2026-10-09 02:16:45 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:16:45 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:16:45 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:16:45 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:16:45 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:45 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) 2026-10-09 02:16:45 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:16:45 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:16:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:16:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:16:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:16:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:16:45 INFO imstat:::: Values --- 2026-10-09 02:16:45 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:16:45 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:16:45 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:16:45 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-09 02:16:45 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:16:45 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:16:45 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:16:45 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:16:45 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:16:45 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:16:45 INFO imstat:::: Statistics --- 2026-10-09 02:16:45 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:16:45 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:16:45 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:16:45 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:16:45 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-09 02:16:45 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-09 02:16:45 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-09 02:16:45 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-09 02:16:45 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-09 02:16:45 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:16:45 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:16:45 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:16:45 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:16:45 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:16:45 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:16:45 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-10-09 02:16:45 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:16:44.972838 End time: 2026-10-09 02:16:44.994275 2026-10-09 02:16:45 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:16:45 INFO imstat::::casa ########################################## 2026-10-09 02:16:45 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:16:45 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40.100000000deg' ) 2026-10-09 02:16:45 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:16:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:16:45 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:16:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:16:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:16:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:16:45 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:16:45 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:16:45 INFO MSTransformManager::open Select data 2026-10-09 02:16:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:16:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:16:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40.100000000deg' successfully parsed 2026-10-09 02:16:45 INFO phaseshift::::casa Shift phase center 2026-10-09 02:16:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:16:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:16:45.007879 End time: 2026-10-09 02:16:45.419719 2026-10-09 02:16:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:16:45 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:45 INFO tclean::::casa ########################################## 2026-10-09 02:16:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:16:45 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:16:45 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:16:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:16:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:16:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:16:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:16:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:16:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:16:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:16:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:16:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:16:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:16:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010893 2026-10-09 02:16:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:16:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:16:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:16:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:16:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:16:46 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:16:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:16:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:16:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:16:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:16:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:16:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:16:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:16:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:16:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:16:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:16:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:16:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:16:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:16:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:16:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:16:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:16:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:16:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:16:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:16:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:16:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:16:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:16:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:16:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:47 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:16:47 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:16:45.438331 End time: 2026-10-09 02:16:46.858806 2026-10-09 02:16:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:16:47 INFO tclean::::casa ########################################## 2026-10-09 02:16:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:16:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:47 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:16:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:16:47 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:16:47 2026****** 2026-10-09 02:16:47 INFO ImageFitter::fit+ 2026-10-09 02:16:47 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:16:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:16:47 INFO ImageFitter::fit+ --- region: 2026-10-09 02:16:47 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:16:47 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:16:47 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:16:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:16:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:16:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:16:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:47 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:16:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:16:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:16:47 INFO imstat::::casa ########################################## 2026-10-09 02:16:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:16:47 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:16:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:16:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:16:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:16:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:16:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:47 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:16:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:16:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:16:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:16:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:16:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:16:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:16:47 INFO imstat:::: Values --- 2026-10-09 02:16:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:16:47 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:16:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:16:47 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-09 02:16:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:16:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:16:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:16:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:16:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:16:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:16:47 INFO imstat:::: Statistics --- 2026-10-09 02:16:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:16:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:16:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:16:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:16:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-09 02:16:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-09 02:16:47 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-09 02:16:47 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-09 02:16:47 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-09 02:16:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:16:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:16:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:16:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:16:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:16:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:16:47 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-10-09 02:16:47 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:16:46.898487 End time: 2026-10-09 02:16:46.916289 2026-10-09 02:16:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:16:47 INFO imstat::::casa ########################################## 2026-10-09 02:16:47 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:16:47 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 0.699877030rad' ) 2026-10-09 02:16:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:16:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:16:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:16:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:16:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:16:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:16:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:16:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:16:47 INFO MSTransformManager::open Select data 2026-10-09 02:16:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:16:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:16:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 0.699877030rad' successfully parsed 2026-10-09 02:16:47 INFO phaseshift::::casa Shift phase center 2026-10-09 02:16:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:16:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:16:46.929357 End time: 2026-10-09 02:16:48.894139 2026-10-09 02:16:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:16:49 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:49 INFO tclean::::casa ########################################## 2026-10-09 02:16:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:16:49 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:16:49 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:16:49 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:16:49 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:16:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:16:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:16:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:16:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:16:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:16:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:16:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:16:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:16:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010628 2026-10-09 02:16:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:16:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:16:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:16:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:16:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:16:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:16:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:16:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:16:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:16:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:16:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:16:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:16:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:16:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:16:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:16:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:16:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:16:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:16:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:16:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:16:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:16:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:16:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:16:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:16:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:16:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:16:50 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:16:50 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:16:50 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:16:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:50 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:16:50 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:16:48.920809 End time: 2026-10-09 02:16:50.394861 2026-10-09 02:16:50 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:16:50 INFO tclean::::casa ########################################## 2026-10-09 02:16:50 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:16:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:50 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:16:50 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:16:50 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:16:50 2026****** 2026-10-09 02:16:50 INFO ImageFitter::fit+ 2026-10-09 02:16:50 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:16:50 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:16:50 INFO ImageFitter::fit+ --- region: 2026-10-09 02:16:50 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:16:50 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:16:50 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:16:50 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:16:50 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:16:50 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:16:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:50 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:16:50 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:16:50 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:16:50 INFO imstat::::casa ########################################## 2026-10-09 02:16:50 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:16:50 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:16:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:16:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:16:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:16:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:16:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:50 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:16:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:16:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:16:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:16:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:16:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:16:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:16:50 INFO imstat:::: Values --- 2026-10-09 02:16:50 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:16:50 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:16:50 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:16:50 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-10-09 02:16:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:16:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:16:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:16:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 02:16:50 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:16:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:16:50 INFO imstat:::: Statistics --- 2026-10-09 02:16:50 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:16:50 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:16:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:16:50 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:16:50 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-10-09 02:16:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-09 02:16:50 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-10-09 02:16:50 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-10-09 02:16:50 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-10-09 02:16:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:16:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:16:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:16:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:16:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:16:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:16:50 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777640e-05 4.999996e+00 2026-10-09 02:16:50 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:16:50.458492 End time: 2026-10-09 02:16:50.482575 2026-10-09 02:16:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:16:50 INFO imstat::::casa ########################################## 2026-10-09 02:16:50 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:16:50 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40d06m00' ) 2026-10-09 02:16:51 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:16:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:16:51 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:16:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:16:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:16:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:16:51 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:16:51 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:16:51 INFO MSTransformManager::open Select data 2026-10-09 02:16:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:16:51 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:16:51 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40d06m00' successfully parsed 2026-10-09 02:16:51 INFO phaseshift::::casa Shift phase center 2026-10-09 02:16:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:16:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:16:50.497784 End time: 2026-10-09 02:16:50.957542 2026-10-09 02:16:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:16:51 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:51 INFO tclean::::casa ########################################## 2026-10-09 02:16:51 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:16:51 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 ) 2026-10-09 02:16:51 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:16:51 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:16:51 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:16:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:51 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:16:51 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:16:51 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:16:51 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:16:51 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:16:51 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:16:51 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:16:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:16:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010506 2026-10-09 02:16:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:16:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:16:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:16:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:16:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:16:52 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:16:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:16:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:16:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:16:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:16:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:16:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:16:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:16:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:16:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:16:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:16:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:16:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:16:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:16:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:16:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:16:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:16:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:16:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:16:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:16:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:16:52 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:16:52 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:16:52 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:16:52 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:52 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:16:52 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:16:50.993590 End time: 2026-10-09 02:16:52.478446 2026-10-09 02:16:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:16:52 INFO tclean::::casa ########################################## 2026-10-09 02:16:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:16:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:53 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) 2026-10-09 02:16:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:16:53 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:16:53 2026****** 2026-10-09 02:16:53 INFO ImageFitter::fit+ 2026-10-09 02:16:53 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:16:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:16:53 INFO ImageFitter::fit+ --- region: 2026-10-09 02:16:53 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:16:53 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:16:53 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:16:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:16:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:16:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:16:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:53 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) 2026-10-09 02:16:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:16:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:16:53 INFO imstat::::casa ########################################## 2026-10-09 02:16:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:16:53 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 ) 2026-10-09 02:16:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:16:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:16:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:16:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:16:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:53 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) 2026-10-09 02:16:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:16:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:16:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:16:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:16:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:16:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:16:53 INFO imstat:::: Values --- 2026-10-09 02:16:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:16:53 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:16:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:16:53 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-10-09 02:16:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:16:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:16:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:16:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:16:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:16:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:16:53 INFO imstat:::: Statistics --- 2026-10-09 02:16:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:16:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:16:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:16:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:16:53 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-10-09 02:16:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-09 02:16:53 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-10-09 02:16:53 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-09 02:16:53 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-10-09 02:16:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:16:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:16:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:16:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:16:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:16:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:16:53 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 2026-10-09 02:16:53 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:16:52.546589 End time: 2026-10-09 02:16:52.570935 2026-10-09 02:16:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:16:53 INFO imstat::::casa ########################################## 2026-10-09 02:16:53 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:16:53 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 02:40:24.0000' ) 2026-10-09 02:16:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:16:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:16:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:16:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:16:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:16:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:16:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:16:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:16:53 INFO MSTransformManager::open Select data 2026-10-09 02:16:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:16:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 02:16:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 02:40:24.0000' successfully parsed 2026-10-09 02:16:53 INFO phaseshift::::casa Shift phase center 2026-10-09 02:16:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:16:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:16:52.586605 End time: 2026-10-09 02:16:52.976405 2026-10-09 02:16:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:16:53 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:53 INFO tclean::::casa ########################################## 2026-10-09 02:16:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:16:53 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:16:53 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:16:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:16:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:16:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:16:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:16:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:16:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:16:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:16:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:16:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:16:53 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:16:53 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.014333 2026-10-09 02:16:53 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:53 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:16:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:16:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:16:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:16:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:16:54 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:16:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:16:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:16:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:16:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:16:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:16:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:16:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:16:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:16:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:16:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:16:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:16:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:16:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:16:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:16:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:16:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:16:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:16:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:16:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:16:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:16:54 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:16:54 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:16:54 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:16:54 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:54 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:16:54 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:16:53.007897 End time: 2026-10-09 02:16:54.392524 2026-10-09 02:16:54 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:16:54 INFO tclean::::casa ########################################## 2026-10-09 02:16:54 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:16:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:54 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:16:54 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:16:54 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:16:54 2026****** 2026-10-09 02:16:54 INFO ImageFitter::fit+ 2026-10-09 02:16:54 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:16:54 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:16:54 INFO ImageFitter::fit+ --- region: 2026-10-09 02:16:54 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:16:54 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:16:54 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:16:54 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:16:54 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:16:54 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:16:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:54 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:16:54 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:16:54 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:16:54 INFO imstat::::casa ########################################## 2026-10-09 02:16:54 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:16:54 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:16:54 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:16:54 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:16:54 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:16:54 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:16:54 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:54 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:16:54 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:16:54 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:16:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:16:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:16:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:16:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:16:54 INFO imstat:::: Values --- 2026-10-09 02:16:54 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:16:54 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:16:54 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:16:54 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-10-09 02:16:54 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:16:54 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:16:54 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:16:54 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:16:54 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:16:54 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:16:54 INFO imstat:::: Statistics --- 2026-10-09 02:16:54 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:16:54 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:16:54 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:16:54 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:16:54 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-10-09 02:16:54 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-09 02:16:54 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-10-09 02:16:54 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-09 02:16:54 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-10-09 02:16:54 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:16:54 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:16:54 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:16:54 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:16:54 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:16:54 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:16:54 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777580e-05 4.999996e+00 2026-10-09 02:16:54 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:16:54.432731 End time: 2026-10-09 02:16:54.451436 2026-10-09 02:16:54 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:16:54 INFO imstat::::casa ########################################## 2026-10-09 02:16:54 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:54 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:16:54 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40.100000000deg' ) 2026-10-09 02:16:54 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:16:54 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:16:54 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:16:54 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:16:54 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:16:54 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:16:54 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:16:54 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:16:54 INFO MSTransformManager::open Select data 2026-10-09 02:16:54 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:16:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:16:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40.100000000deg' successfully parsed 2026-10-09 02:16:55 INFO phaseshift::::casa Shift phase center 2026-10-09 02:16:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:16:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:16:54.464295 End time: 2026-10-09 02:16:54.847542 2026-10-09 02:16:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:16:55 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:55 INFO tclean::::casa ########################################## 2026-10-09 02:16:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:16:55 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:16:55 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:16:55 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:16:55 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:16:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:55 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:16:55 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:16:55 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:16:55 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:16:55 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:16:55 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:16:55 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:16:55 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:16:55 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010328 2026-10-09 02:16:55 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:55 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:16:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:16:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:16:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:16:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:16:55 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:16:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:16:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:16:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:16:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:16:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:16:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:16:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:16:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:16:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:16:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:16:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:16:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:16:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:16:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:16:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:16:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:16:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:16:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:16:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:16:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:16:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:16:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:16:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:16:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:56 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:16:56 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:16:54.868758 End time: 2026-10-09 02:16:56.167230 2026-10-09 02:16:56 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:16:56 INFO tclean::::casa ########################################## 2026-10-09 02:16:56 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:16:56 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:56 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:16:56 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:16:56 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:16:56 2026****** 2026-10-09 02:16:56 INFO ImageFitter::fit+ 2026-10-09 02:16:56 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:16:56 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:16:56 INFO ImageFitter::fit+ --- region: 2026-10-09 02:16:56 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:16:56 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:16:56 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:16:56 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:16:56 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:16:56 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:16:56 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:56 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:16:56 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:16:56 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:16:56 INFO imstat::::casa ########################################## 2026-10-09 02:16:56 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:16:56 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:16:56 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:16:56 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:16:56 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:16:56 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:16:56 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:56 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:16:56 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:16:56 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:16:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:16:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:16:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:16:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:16:56 INFO imstat:::: Values --- 2026-10-09 02:16:56 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:16:56 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:16:56 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:16:56 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-10-09 02:16:56 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:16:56 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:16:56 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:16:56 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:16:56 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:16:56 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:16:56 INFO imstat:::: Statistics --- 2026-10-09 02:16:56 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:16:56 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:16:56 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:16:56 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:16:56 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-10-09 02:16:56 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-09 02:16:56 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-10-09 02:16:56 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-09 02:16:56 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-10-09 02:16:56 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:16:56 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:16:56 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:16:56 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:16:56 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:16:56 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:16:56 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777580e-05 4.999996e+00 2026-10-09 02:16:56 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:16:56.233538 End time: 2026-10-09 02:16:56.258209 2026-10-09 02:16:56 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:16:56 INFO imstat::::casa ########################################## 2026-10-09 02:16:56 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:16:56 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 0.699877030rad' ) 2026-10-09 02:16:56 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:16:56 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:16:56 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:16:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:16:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:16:56 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:16:56 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:16:56 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:16:56 INFO MSTransformManager::open Select data 2026-10-09 02:16:56 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:16:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:16:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 0.699877030rad' successfully parsed 2026-10-09 02:16:56 INFO phaseshift::::casa Shift phase center 2026-10-09 02:16:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:16:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:16:56.273878 End time: 2026-10-09 02:16:56.702220 2026-10-09 02:16:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:16:57 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:57 INFO tclean::::casa ########################################## 2026-10-09 02:16:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:16:57 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:16:57 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:16:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:16:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:16:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:16:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:16:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:16:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:16:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:16:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:16:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:16:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:16:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.018034 2026-10-09 02:16:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:16:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:16:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:16:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:16:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:16:57 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:16:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:16:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:16:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:16:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:16:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:16:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:16:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:16:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:16:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:16:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:16:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:16:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:16:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:16:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:16:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:16:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:16:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:16:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:16:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:16:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:16:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:16:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:16:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:16:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:16:58 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:58 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:16:58 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:16:56.721607 End time: 2026-10-09 02:16:58.286831 2026-10-09 02:16:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:16:58 INFO tclean::::casa ########################################## 2026-10-09 02:16:58 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:16:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:58 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:16:58 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:16:58 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:16:58 2026****** 2026-10-09 02:16:58 INFO ImageFitter::fit+ 2026-10-09 02:16:58 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:16:58 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:16:58 INFO ImageFitter::fit+ --- region: 2026-10-09 02:16:58 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:16:58 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:16:58 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:16:58 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:16:58 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:16:58 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:16:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:58 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:16:58 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:16:58 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:16:58 INFO imstat::::casa ########################################## 2026-10-09 02:16:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:16:58 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:16:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:16:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:16:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:16:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:16:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:16:58 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:16:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:16:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:16:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:16:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:16:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:16:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:16:58 INFO imstat:::: Values --- 2026-10-09 02:16:58 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:16:58 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:16:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:16:58 INFO imstat:::: -- minimum value [min]: -7.77738e-05 Jy/beam 2026-10-09 02:16:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:16:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:16:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:16:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:16:58 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:16:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:16:58 INFO imstat:::: Statistics --- 2026-10-09 02:16:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:16:58 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:16:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:16:58 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:16:58 INFO imstat:::: -- Median of the pixel values [median]: -1.86662e-05 Jy/beam 2026-10-09 02:16:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73577e-05 Jy/beam 2026-10-09 02:16:58 INFO imstat:::: -- IQR [quartile]: 3.56242e-05 Jy/beam 2026-10-09 02:16:58 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-09 02:16:58 INFO imstat:::: -- Third quartile [q3]: 1.11673e-06 Jy/beam 2026-10-09 02:16:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:16:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:16:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:16:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:16:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:16:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:16:58 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777377e-05 4.999996e+00 2026-10-09 02:16:58 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:16:58.344048 End time: 2026-10-09 02:16:58.366145 2026-10-09 02:16:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:16:58 INFO imstat::::casa ########################################## 2026-10-09 02:16:58 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:16:58 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 5.209080597rad 40d06m00' ) 2026-10-09 02:16:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:16:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:16:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:16:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:16:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:16:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:16:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:16:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:16:58 INFO MSTransformManager::open Select data 2026-10-09 02:16:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:16:59 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:16:59 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40d06m00' successfully parsed 2026-10-09 02:16:59 INFO phaseshift::::casa Shift phase center 2026-10-09 02:16:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:16:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:16:58.380394 End time: 2026-10-09 02:16:58.951897 2026-10-09 02:16:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:16:59 INFO phaseshift::::casa ########################################## 2026-10-09 02:16:59 INFO tclean::::casa ########################################## 2026-10-09 02:16:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:16:59 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:16:59 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:16:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:16:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:16:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:16:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:16:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:16:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:16:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:16:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:16:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:16:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:16:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:16:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02169 2026-10-09 02:16:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:16:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:17:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:01 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:01 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:01 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:16:58.983899 End time: 2026-10-09 02:17:00.755944 2026-10-09 02:17:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:01 INFO tclean::::casa ########################################## 2026-10-09 02:17:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:01 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:01 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:01 2026****** 2026-10-09 02:17:01 INFO ImageFitter::fit+ 2026-10-09 02:17:01 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:01 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:01 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:01 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:01 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:01 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:01 INFO imstat::::casa ########################################## 2026-10-09 02:17:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:01 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:01 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:01 INFO imstat:::: Values --- 2026-10-09 02:17:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:01 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:01 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-09 02:17:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:17:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 02:17:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:01 INFO imstat:::: Statistics --- 2026-10-09 02:17:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-10-09 02:17:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-10-09 02:17:01 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-10-09 02:17:01 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-10-09 02:17:01 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-10-09 02:17:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:01 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 2026-10-09 02:17:01 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:00.825299 End time: 2026-10-09 02:17:00.850300 2026-10-09 02:17:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:01 INFO imstat::::casa ########################################## 2026-10-09 02:17:01 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:01 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 02:40:24.0000' ) 2026-10-09 02:17:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:01 INFO MSTransformManager::open Select data 2026-10-09 02:17:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:01 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 ".". 2026-10-09 02:17:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 02:40:24.0000' successfully parsed 2026-10-09 02:17:01 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:01 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:00.866149 End time: 2026-10-09 02:17:01.236189 2026-10-09 02:17:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:01 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:01 INFO tclean::::casa ########################################## 2026-10-09 02:17:01 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:01 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:01 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:01 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:01 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:01 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:01 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:01 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:01 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:01 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:01 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:01 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:02 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:02 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.013567 2026-10-09 02:17:02 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:02 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:17:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:03 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:03 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:03 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:03 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:03 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:03 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:01.254879 End time: 2026-10-09 02:17:02.738008 2026-10-09 02:17:03 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:03 INFO tclean::::casa ########################################## 2026-10-09 02:17:03 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:03 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:03 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:03 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:03 2026****** 2026-10-09 02:17:03 INFO ImageFitter::fit+ 2026-10-09 02:17:03 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:03 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:03 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:03 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:03 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:03 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:03 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:03 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:03 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:03 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:03 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:03 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:03 INFO imstat::::casa ########################################## 2026-10-09 02:17:03 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:03 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:03 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:03 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:03 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:03 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:03 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:03 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:03 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:03 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:03 INFO imstat:::: Values --- 2026-10-09 02:17:03 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:03 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:03 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:03 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-09 02:17:03 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:03 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:17:03 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:03 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 02:17:03 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:03 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:03 INFO imstat:::: Statistics --- 2026-10-09 02:17:03 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:03 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:03 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:03 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:03 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-10-09 02:17:03 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-10-09 02:17:03 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-10-09 02:17:03 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-10-09 02:17:03 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-10-09 02:17:03 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:03 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:03 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:03 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:03 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:03 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:03 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778010e-05 4.999996e+00 2026-10-09 02:17:03 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:02.808748 End time: 2026-10-09 02:17:02.835826 2026-10-09 02:17:03 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:03 INFO imstat::::casa ########################################## 2026-10-09 02:17:03 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:03 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40.100000000deg' ) 2026-10-09 02:17:03 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:03 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:03 INFO MSTransformManager::open Select data 2026-10-09 02:17:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40.100000000deg' successfully parsed 2026-10-09 02:17:03 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:02.851911 End time: 2026-10-09 02:17:03.260778 2026-10-09 02:17:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:03 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:03 INFO tclean::::casa ########################################## 2026-10-09 02:17:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:03 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 ) 2026-10-09 02:17:03 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:04 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:04 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.015065 2026-10-09 02:17:04 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:04 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:17:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:04 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:04 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:04 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:05 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:05 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:05 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:03.279913 End time: 2026-10-09 02:17:04.651562 2026-10-09 02:17:05 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:05 INFO tclean::::casa ########################################## 2026-10-09 02:17:05 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:05 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:05 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:05 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:05 2026****** 2026-10-09 02:17:05 INFO ImageFitter::fit+ 2026-10-09 02:17:05 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:05 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:05 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:05 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:05 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:05 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:05 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:05 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:05 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:05 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:05 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:05 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:05 INFO imstat::::casa ########################################## 2026-10-09 02:17:05 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:05 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:05 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:05 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:05 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:05 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:05 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:05 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:05 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:05 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:05 INFO imstat:::: Values --- 2026-10-09 02:17:05 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:05 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:05 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:05 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-09 02:17:05 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:05 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:17:05 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:05 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 02:17:05 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:05 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:05 INFO imstat:::: Statistics --- 2026-10-09 02:17:05 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:05 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:05 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:05 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:05 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-10-09 02:17:05 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-10-09 02:17:05 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-10-09 02:17:05 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-10-09 02:17:05 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-10-09 02:17:05 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:05 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:05 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:05 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:05 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:05 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:05 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778010e-05 4.999996e+00 2026-10-09 02:17:05 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:04.709448 End time: 2026-10-09 02:17:04.737820 2026-10-09 02:17:05 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:05 INFO imstat::::casa ########################################## 2026-10-09 02:17:05 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:05 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:05 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 0.699877030rad' ) 2026-10-09 02:17:05 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:05 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:05 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:05 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:05 INFO MSTransformManager::open Select data 2026-10-09 02:17:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 0.699877030rad' successfully parsed 2026-10-09 02:17:05 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:04.755641 End time: 2026-10-09 02:17:05.173549 2026-10-09 02:17:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:05 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:05 INFO tclean::::casa ########################################## 2026-10-09 02:17:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:05 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:05 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:05 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:05 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:05 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:05 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010109 2026-10-09 02:17:05 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:05 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:06 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:17:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:07 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:07 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:07 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:05.209620 End time: 2026-10-09 02:17:06.918359 2026-10-09 02:17:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:07 INFO tclean::::casa ########################################## 2026-10-09 02:17:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:07 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:07 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:07 2026****** 2026-10-09 02:17:07 INFO ImageFitter::fit+ 2026-10-09 02:17:07 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:07 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:07 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:07 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:07 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:07 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:07 INFO imstat::::casa ########################################## 2026-10-09 02:17:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:07 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:07 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:07 INFO imstat:::: Values --- 2026-10-09 02:17:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:07 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:07 INFO imstat:::: -- minimum value [min]: -7.77793e-05 Jy/beam 2026-10-09 02:17:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:17:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 02:17:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:07 INFO imstat:::: Statistics --- 2026-10-09 02:17:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-10-09 02:17:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73592e-05 Jy/beam 2026-10-09 02:17:07 INFO imstat:::: -- IQR [quartile]: 3.55982e-05 Jy/beam 2026-10-09 02:17:07 INFO imstat:::: -- First quartile [q1]: -3.45035e-05 Jy/beam 2026-10-09 02:17:07 INFO imstat:::: -- Third quartile [q3]: 1.09469e-06 Jy/beam 2026-10-09 02:17:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:07 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777928e-05 4.999996e+00 2026-10-09 02:17:07 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:06.970913 End time: 2026-10-09 02:17:06.993580 2026-10-09 02:17:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:07 INFO imstat::::casa ########################################## 2026-10-09 02:17:07 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:07 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40d06m0.0019' ) 2026-10-09 02:17:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:07 INFO MSTransformManager::open Select data 2026-10-09 02:17:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40d06m0.0019' successfully parsed 2026-10-09 02:17:07 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:07.008566 End time: 2026-10-09 02:17:07.473068 2026-10-09 02:17:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:07 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:08 INFO tclean::::casa ########################################## 2026-10-09 02:17:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:08 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:08 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:08 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:08 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.016169 2026-10-09 02:17:08 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:08 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:17:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:09 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:09 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:09 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:07.509363 End time: 2026-10-09 02:17:09.286295 2026-10-09 02:17:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:09 INFO tclean::::casa ########################################## 2026-10-09 02:17:09 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:09 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:09 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:09 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:09 2026****** 2026-10-09 02:17:09 INFO ImageFitter::fit+ 2026-10-09 02:17:09 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:09 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:09 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:09 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:09 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:09 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:09 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:09 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:09 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:09 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:09 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:09 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:09 INFO imstat::::casa ########################################## 2026-10-09 02:17:09 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:09 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:09 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:09 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:09 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:09 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:09 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:09 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:09 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:09 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:09 INFO imstat:::: Values --- 2026-10-09 02:17:09 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:09 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:09 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:09 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-09 02:17:09 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:09 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:09 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:09 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 02:17:09 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:09 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:09 INFO imstat:::: Statistics --- 2026-10-09 02:17:09 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:09 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:09 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:09 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:09 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-10-09 02:17:09 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-10-09 02:17:09 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-10-09 02:17:09 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-10-09 02:17:09 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-10-09 02:17:09 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:09 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:09 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:09 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:09 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:09 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:09 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779541e-05 4.999996e+00 2026-10-09 02:17:09 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:09.347690 End time: 2026-10-09 02:17:09.371046 2026-10-09 02:17:09 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:09 INFO imstat::::casa ########################################## 2026-10-09 02:17:09 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:09 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 02:40:24.0001' ) 2026-10-09 02:17:09 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:09 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:09 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:09 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:09 INFO MSTransformManager::open Select data 2026-10-09 02:17:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 02:17:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 02:40:24.0001' successfully parsed 2026-10-09 02:17:10 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:09.385725 End time: 2026-10-09 02:17:09.849034 2026-10-09 02:17:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:10 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:10 INFO tclean::::casa ########################################## 2026-10-09 02:17:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:10 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:10 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017382 2026-10-09 02:17:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:10 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:17:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:11 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:11 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:11 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:11 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:11 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:12 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:09.869697 End time: 2026-10-09 02:17:11.575344 2026-10-09 02:17:12 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:12 INFO tclean::::casa ########################################## 2026-10-09 02:17:12 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:12 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) 2026-10-09 02:17:12 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:12 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:12 2026****** 2026-10-09 02:17:12 INFO ImageFitter::fit+ 2026-10-09 02:17:12 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:12 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:12 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:12 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:12 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:12 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:12 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:12 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:12 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:12 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-10-09 02:17:12 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:12 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:12 INFO imstat::::casa ########################################## 2026-10-09 02:17:12 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:12 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 ) 2026-10-09 02:17:12 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:12 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:12 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:12 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:12 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:12 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) 2026-10-09 02:17:12 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:12 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:12 INFO imstat:::: Values --- 2026-10-09 02:17:12 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:12 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:12 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:12 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-10-09 02:17:12 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:12 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:17:12 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:12 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-09 02:17:12 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:12 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:12 INFO imstat:::: Statistics --- 2026-10-09 02:17:12 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:12 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:12 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:12 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:12 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-10-09 02:17:12 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-10-09 02:17:12 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-10-09 02:17:12 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-10-09 02:17:12 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-10-09 02:17:12 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:12 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:12 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:12 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:12 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:12 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:12 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780943e-05 4.999996e+00 2026-10-09 02:17:12 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:11.647781 End time: 2026-10-09 02:17:11.675042 2026-10-09 02:17:12 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:12 INFO imstat::::casa ########################################## 2026-10-09 02:17:12 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:12 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40.100000528deg' ) 2026-10-09 02:17:12 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:12 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:12 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:12 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:12 INFO MSTransformManager::open Select data 2026-10-09 02:17:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40.100000528deg' successfully parsed 2026-10-09 02:17:12 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:11.690510 End time: 2026-10-09 02:17:12.153980 2026-10-09 02:17:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:12 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:12 INFO tclean::::casa ########################################## 2026-10-09 02:17:12 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:12 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 ) 2026-10-09 02:17:12 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:12 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:12 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:12 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:12 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:12 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:12 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:12 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:12 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:12 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:12 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:12 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010105 2026-10-09 02:17:12 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:12 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:17:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:13 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:14 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:14 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:12.173462 End time: 2026-10-09 02:17:13.635349 2026-10-09 02:17:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:14 INFO tclean::::casa ########################################## 2026-10-09 02:17:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:14 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:14 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:14 2026****** 2026-10-09 02:17:14 INFO ImageFitter::fit+ 2026-10-09 02:17:14 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:14 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:14 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:14 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:14 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:14 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:14 INFO imstat::::casa ########################################## 2026-10-09 02:17:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:14 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:14 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:14 INFO imstat:::: Values --- 2026-10-09 02:17:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:14 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:14 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-09 02:17:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 02:17:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:14 INFO imstat:::: Statistics --- 2026-10-09 02:17:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-09 02:17:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-10-09 02:17:14 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-10-09 02:17:14 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-10-09 02:17:14 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-10-09 02:17:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:14 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779537e-05 4.999996e+00 2026-10-09 02:17:14 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:13.691415 End time: 2026-10-09 02:17:13.713969 2026-10-09 02:17:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:14 INFO imstat::::casa ########################################## 2026-10-09 02:17:14 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:14 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 0.699877039rad' ) 2026-10-09 02:17:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:14 INFO MSTransformManager::open Select data 2026-10-09 02:17:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 0.699877039rad' successfully parsed 2026-10-09 02:17:14 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:13.728002 End time: 2026-10-09 02:17:14.149011 2026-10-09 02:17:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:14 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:14 INFO tclean::::casa ########################################## 2026-10-09 02:17:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:14 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:14 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:14 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:14 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:14 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.012976 2026-10-09 02:17:14 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:14 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:15 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:17:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:16 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:14.167154 End time: 2026-10-09 02:17:15.648698 2026-10-09 02:17:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:16 INFO tclean::::casa ########################################## 2026-10-09 02:17:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:16 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:16 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:16 2026****** 2026-10-09 02:17:16 INFO ImageFitter::fit+ 2026-10-09 02:17:16 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:16 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:16 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:16 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:16 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:16 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:16 INFO imstat::::casa ########################################## 2026-10-09 02:17:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:16 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:16 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:16 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:16 INFO imstat:::: Values --- 2026-10-09 02:17:16 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:16 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:16 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:16 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-10-09 02:17:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 02:17:16 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:16 INFO imstat:::: Statistics --- 2026-10-09 02:17:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:16 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:16 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:16 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-10-09 02:17:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-10-09 02:17:16 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-10-09 02:17:16 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-09 02:17:16 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-10-09 02:17:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:16 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778665e-05 4.999996e+00 2026-10-09 02:17:16 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:15.711673 End time: 2026-10-09 02:17:15.732743 2026-10-09 02:17:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:16 INFO imstat::::casa ########################################## 2026-10-09 02:17:16 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:16 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40d06m0.0019' ) 2026-10-09 02:17:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:16 INFO MSTransformManager::open Select data 2026-10-09 02:17:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40d06m0.0019' successfully parsed 2026-10-09 02:17:16 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:15.746057 End time: 2026-10-09 02:17:16.138491 2026-10-09 02:17:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:16 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:16 INFO tclean::::casa ########################################## 2026-10-09 02:17:16 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:16 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:16 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:16 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:16 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:16 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:16 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:16 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:16 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:16 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:16 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:16 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:16 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:16 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.018422 2026-10-09 02:17:16 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:16 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:17 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:17:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:18 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:18 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:16.155928 End time: 2026-10-09 02:17:17.602166 2026-10-09 02:17:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:18 INFO tclean::::casa ########################################## 2026-10-09 02:17:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:18 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:18 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:18 2026****** 2026-10-09 02:17:18 INFO ImageFitter::fit+ 2026-10-09 02:17:18 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:18 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:18 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:18 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:18 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:18 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:18 INFO imstat::::casa ########################################## 2026-10-09 02:17:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:18 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:18 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:18 INFO imstat:::: Values --- 2026-10-09 02:17:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:18 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:18 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-09 02:17:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 02:17:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:18 INFO imstat:::: Statistics --- 2026-10-09 02:17:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-10-09 02:17:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-10-09 02:17:18 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-10-09 02:17:18 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-10-09 02:17:18 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-10-09 02:17:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:18 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 2026-10-09 02:17:18 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:17.643628 End time: 2026-10-09 02:17:17.662216 2026-10-09 02:17:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:18 INFO imstat::::casa ########################################## 2026-10-09 02:17:18 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:18 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' ) 2026-10-09 02:17:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:18 INFO MSTransformManager::open Select data 2026-10-09 02:17:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 02:17:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 02:40:24.0001' successfully parsed 2026-10-09 02:17:18 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:17.675184 End time: 2026-10-09 02:17:18.042412 2026-10-09 02:17:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:18 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:18 INFO tclean::::casa ########################################## 2026-10-09 02:17:18 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:18 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 ) 2026-10-09 02:17:18 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:18 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:18 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:18 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:18 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:18 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:18 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:18 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:18 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:18 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011624 2026-10-09 02:17:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:17:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:19 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:19 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:19 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:19 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:19 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:19 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:18.062447 End time: 2026-10-09 02:17:19.350732 2026-10-09 02:17:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:19 INFO tclean::::casa ########################################## 2026-10-09 02:17:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:19 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:19 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:19 2026****** 2026-10-09 02:17:19 INFO ImageFitter::fit+ 2026-10-09 02:17:19 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:19 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:19 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:19 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:19 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:19 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-10-09 02:17:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:19 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:19 INFO imstat::::casa ########################################## 2026-10-09 02:17:19 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:19 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:19 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:19 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:19 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:19 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:19 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:19 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:19 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:19 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:19 INFO imstat:::: Values --- 2026-10-09 02:17:19 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:19 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:19 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:19 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-10-09 02:17:19 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:19 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:17:19 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:19 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-09 02:17:19 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:19 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:19 INFO imstat:::: Statistics --- 2026-10-09 02:17:19 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:19 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:19 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:19 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:19 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-10-09 02:17:19 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-10-09 02:17:19 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-10-09 02:17:19 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-10-09 02:17:19 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-10-09 02:17:19 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:19 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:19 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:19 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:19 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:19 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:19 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780943e-05 4.999996e+00 2026-10-09 02:17:19 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:19.395423 End time: 2026-10-09 02:17:19.416508 2026-10-09 02:17:19 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:19 INFO imstat::::casa ########################################## 2026-10-09 02:17:19 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:19 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40.100000528deg' ) 2026-10-09 02:17:19 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:19 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:19 INFO MSTransformManager::open Select data 2026-10-09 02:17:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40.100000528deg' successfully parsed 2026-10-09 02:17:20 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:19.429730 End time: 2026-10-09 02:17:19.841130 2026-10-09 02:17:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:20 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:20 INFO tclean::::casa ########################################## 2026-10-09 02:17:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:20 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:20 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:20 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:20 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010915 2026-10-09 02:17:20 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:20 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:20 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:17:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:21 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:21 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:21 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:21 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:21 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:21 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:19.867187 End time: 2026-10-09 02:17:21.197174 2026-10-09 02:17:21 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:21 INFO tclean::::casa ########################################## 2026-10-09 02:17:21 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:21 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:21 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:21 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:21 2026****** 2026-10-09 02:17:21 INFO ImageFitter::fit+ 2026-10-09 02:17:21 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:21 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:21 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:21 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:21 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:21 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:21 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:21 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:21 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:21 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:21 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:21 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:21 INFO imstat::::casa ########################################## 2026-10-09 02:17:21 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:21 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:21 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:21 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:21 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:21 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:21 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:21 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:21 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:21 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:21 INFO imstat:::: Values --- 2026-10-09 02:17:21 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:21 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:21 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:21 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-09 02:17:21 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:21 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:21 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:21 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 02:17:21 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:21 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:21 INFO imstat:::: Statistics --- 2026-10-09 02:17:21 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:21 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:21 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:21 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:21 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-09 02:17:21 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-10-09 02:17:21 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-10-09 02:17:21 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-10-09 02:17:21 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-10-09 02:17:21 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:21 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:21 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:21 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:21 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:21 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:21 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779537e-05 4.999996e+00 2026-10-09 02:17:21 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:21.273511 End time: 2026-10-09 02:17:21.304802 2026-10-09 02:17:21 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:21 INFO imstat::::casa ########################################## 2026-10-09 02:17:21 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:21 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 0.699877039rad' ) 2026-10-09 02:17:21 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:21 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:21 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:21 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:21 INFO MSTransformManager::open Select data 2026-10-09 02:17:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:22 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 0.699877039rad' successfully parsed 2026-10-09 02:17:22 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:21.323215 End time: 2026-10-09 02:17:21.679065 2026-10-09 02:17:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:22 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:22 INFO tclean::::casa ########################################## 2026-10-09 02:17:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:22 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:22 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:22 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:22 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011225 2026-10-09 02:17:22 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:22 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:22 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:17:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:23 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:23 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:23 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:23 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:23 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:23 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:21.696849 End time: 2026-10-09 02:17:23.016919 2026-10-09 02:17:23 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:23 INFO tclean::::casa ########################################## 2026-10-09 02:17:23 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:23 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:23 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:23 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:23 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:23 2026****** 2026-10-09 02:17:23 INFO ImageFitter::fit+ 2026-10-09 02:17:23 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:23 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:23 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:23 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:23 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:23 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:23 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:23 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:23 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:23 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:23 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:23 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:23 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:23 INFO imstat::::casa ########################################## 2026-10-09 02:17:23 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:23 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:23 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:23 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:23 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:23 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:23 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:23 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:23 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:23 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:23 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:23 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:23 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:23 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:23 INFO imstat:::: Values --- 2026-10-09 02:17:23 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:23 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:23 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:23 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-10-09 02:17:23 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:23 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:23 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:23 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 02:17:23 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:23 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:23 INFO imstat:::: Statistics --- 2026-10-09 02:17:23 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:23 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:23 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:23 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:23 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-10-09 02:17:23 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-10-09 02:17:23 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-10-09 02:17:23 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-09 02:17:23 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-10-09 02:17:23 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:23 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:23 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:23 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:23 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:23 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:23 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778665e-05 4.999996e+00 2026-10-09 02:17:23 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:23.059407 End time: 2026-10-09 02:17:23.078013 2026-10-09 02:17:23 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:23 INFO imstat::::casa ########################################## 2026-10-09 02:17:23 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:23 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:23 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40d06m0.0019' ) 2026-10-09 02:17:23 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:23 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:23 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:23 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:23 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:23 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:23 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:23 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:23 INFO MSTransformManager::open Select data 2026-10-09 02:17:23 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40d06m0.0019' successfully parsed 2026-10-09 02:17:23 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:23 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:23 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:23.090792 End time: 2026-10-09 02:17:23.456547 2026-10-09 02:17:23 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:23 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:23 INFO tclean::::casa ########################################## 2026-10-09 02:17:23 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:23 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 ) 2026-10-09 02:17:23 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:24 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:24 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:24 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:24 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:24 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:24 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:24 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:24 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:24 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:24 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.01007 2026-10-09 02:17:24 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:24 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:24 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:17:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:27 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:27 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:27 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:23.492049 End time: 2026-10-09 02:17:27.153687 2026-10-09 02:17:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:27 INFO tclean::::casa ########################################## 2026-10-09 02:17:27 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:27 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:27 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:27 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:27 2026****** 2026-10-09 02:17:27 INFO ImageFitter::fit+ 2026-10-09 02:17:27 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:27 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:27 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:27 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:27 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:27 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:27 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:27 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:27 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:27 INFO imstat::::casa ########################################## 2026-10-09 02:17:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:27 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:27 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:27 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:27 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:27 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:27 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:27 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:27 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:27 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:27 INFO imstat:::: Values --- 2026-10-09 02:17:27 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:27 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:27 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:27 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-09 02:17:27 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:27 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:27 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:27 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 02:17:27 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:27 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:27 INFO imstat:::: Statistics --- 2026-10-09 02:17:27 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:27 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:27 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:27 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:27 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-10-09 02:17:27 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-10-09 02:17:27 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-10-09 02:17:27 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-10-09 02:17:27 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-10-09 02:17:27 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:27 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:27 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:27 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:27 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:27 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:27 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779541e-05 4.999996e+00 2026-10-09 02:17:27 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:27.229276 End time: 2026-10-09 02:17:27.256442 2026-10-09 02:17:27 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:27 INFO imstat::::casa ########################################## 2026-10-09 02:17:27 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:27 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 02:40:24.0001' ) 2026-10-09 02:17:27 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:27 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:27 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:27 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:27 INFO MSTransformManager::open Select data 2026-10-09 02:17:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:28 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 02:17:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 02:40:24.0001' successfully parsed 2026-10-09 02:17:28 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:27.272953 End time: 2026-10-09 02:17:27.859306 2026-10-09 02:17:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:28 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:28 INFO tclean::::casa ########################################## 2026-10-09 02:17:28 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:28 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:28 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:28 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:28 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.019161 2026-10-09 02:17:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:17:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:30 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:30 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:30 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:30 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:30 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:30 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:27.876995 End time: 2026-10-09 02:17:29.887175 2026-10-09 02:17:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:30 INFO tclean::::casa ########################################## 2026-10-09 02:17:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:30 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:30 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:30 2026****** 2026-10-09 02:17:30 INFO ImageFitter::fit+ 2026-10-09 02:17:30 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:30 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:30 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:30 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:30 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:30 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-10-09 02:17:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:30 INFO imstat::::casa ########################################## 2026-10-09 02:17:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:30 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:30 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:30 INFO imstat:::: Values --- 2026-10-09 02:17:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:30 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:30 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-10-09 02:17:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:17:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-09 02:17:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:30 INFO imstat:::: Statistics --- 2026-10-09 02:17:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-10-09 02:17:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-10-09 02:17:30 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-10-09 02:17:30 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-10-09 02:17:30 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-10-09 02:17:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:30 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780943e-05 4.999996e+00 2026-10-09 02:17:30 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:29.956166 End time: 2026-10-09 02:17:29.984987 2026-10-09 02:17:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:30 INFO imstat::::casa ########################################## 2026-10-09 02:17:30 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40.100000528deg' ) 2026-10-09 02:17:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:30 INFO MSTransformManager::open Select data 2026-10-09 02:17:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40.100000528deg' successfully parsed 2026-10-09 02:17:30 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:30.000867 End time: 2026-10-09 02:17:30.402567 2026-10-09 02:17:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:30 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:30 INFO tclean::::casa ########################################## 2026-10-09 02:17:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:30 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:30 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:31 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:31 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:31 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:31 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:31 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:31 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:31 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:31 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:31 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010168 2026-10-09 02:17:31 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:31 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:17:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:32 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:32 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:32 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:32 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:32 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:32 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:30.419715 End time: 2026-10-09 02:17:31.727676 2026-10-09 02:17:32 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:32 INFO tclean::::casa ########################################## 2026-10-09 02:17:32 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:32 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:32 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:32 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:32 2026****** 2026-10-09 02:17:32 INFO ImageFitter::fit+ 2026-10-09 02:17:32 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:32 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:32 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:32 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:32 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:32 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:32 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:32 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:32 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:32 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:32 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:32 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:32 INFO imstat::::casa ########################################## 2026-10-09 02:17:32 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:32 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:32 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:32 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:32 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:32 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:32 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:32 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:32 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:32 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:32 INFO imstat:::: Values --- 2026-10-09 02:17:32 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:32 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:32 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:32 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-09 02:17:32 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:32 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:32 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:32 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 02:17:32 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:32 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:32 INFO imstat:::: Statistics --- 2026-10-09 02:17:32 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:32 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:32 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:32 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:32 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-09 02:17:32 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-10-09 02:17:32 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-10-09 02:17:32 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-10-09 02:17:32 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-10-09 02:17:32 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:32 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:32 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:32 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:32 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:32 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:32 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779537e-05 4.999996e+00 2026-10-09 02:17:32 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:31.802611 End time: 2026-10-09 02:17:31.829964 2026-10-09 02:17:32 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:32 INFO imstat::::casa ########################################## 2026-10-09 02:17:32 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:32 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:32 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 0.699877039rad' ) 2026-10-09 02:17:32 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:32 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:32 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:32 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:32 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:32 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:32 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:32 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:32 INFO MSTransformManager::open Select data 2026-10-09 02:17:32 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 0.699877039rad' successfully parsed 2026-10-09 02:17:32 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:31.846112 End time: 2026-10-09 02:17:32.310176 2026-10-09 02:17:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:32 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:32 INFO tclean::::casa ########################################## 2026-10-09 02:17:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:32 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 ) 2026-10-09 02:17:32 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:32 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:32 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:32 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:33 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:33 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010148 2026-10-09 02:17:33 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:33 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:33 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:17:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:33 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:34 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:32.327864 End time: 2026-10-09 02:17:33.561365 2026-10-09 02:17:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:34 INFO tclean::::casa ########################################## 2026-10-09 02:17:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:34 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:34 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:34 2026****** 2026-10-09 02:17:34 INFO ImageFitter::fit+ 2026-10-09 02:17:34 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:34 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:34 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:34 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:34 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:34 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:34 INFO imstat::::casa ########################################## 2026-10-09 02:17:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:34 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:34 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:34 INFO imstat:::: Values --- 2026-10-09 02:17:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:34 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:34 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-10-09 02:17:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 02:17:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:34 INFO imstat:::: Statistics --- 2026-10-09 02:17:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-10-09 02:17:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-10-09 02:17:34 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-10-09 02:17:34 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-09 02:17:34 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-10-09 02:17:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:34 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778665e-05 4.999996e+00 2026-10-09 02:17:34 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:33.602017 End time: 2026-10-09 02:17:33.620545 2026-10-09 02:17:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:34 INFO imstat::::casa ########################################## 2026-10-09 02:17:34 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:34 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40d06m0.0019' ) 2026-10-09 02:17:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:34 INFO MSTransformManager::open Select data 2026-10-09 02:17:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40d06m0.0019' successfully parsed 2026-10-09 02:17:34 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:33.632784 End time: 2026-10-09 02:17:34.101713 2026-10-09 02:17:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:34 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:34 INFO tclean::::casa ########################################## 2026-10-09 02:17:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:34 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:34 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.018451 2026-10-09 02:17:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:35 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:17:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:36 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:36 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:34.131837 End time: 2026-10-09 02:17:35.916769 2026-10-09 02:17:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:36 INFO tclean::::casa ########################################## 2026-10-09 02:17:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:36 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:36 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:36 2026****** 2026-10-09 02:17:36 INFO ImageFitter::fit+ 2026-10-09 02:17:36 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:36 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:36 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:36 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:36 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:36 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:36 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:36 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:36 INFO imstat::::casa ########################################## 2026-10-09 02:17:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:36 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:36 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:36 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:36 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:36 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:36 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:36 INFO imstat:::: Values --- 2026-10-09 02:17:36 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:36 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:36 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:36 INFO imstat:::: -- minimum value [min]: -7.77984e-05 Jy/beam 2026-10-09 02:17:36 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:36 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:36 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:36 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 02:17:36 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:36 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:36 INFO imstat:::: Statistics --- 2026-10-09 02:17:36 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:36 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:36 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:36 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:36 INFO imstat:::: -- Median of the pixel values [median]: -1.86704e-05 Jy/beam 2026-10-09 02:17:36 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7365e-05 Jy/beam 2026-10-09 02:17:36 INFO imstat:::: -- IQR [quartile]: 3.56348e-05 Jy/beam 2026-10-09 02:17:36 INFO imstat:::: -- First quartile [q1]: -3.45131e-05 Jy/beam 2026-10-09 02:17:36 INFO imstat:::: -- Third quartile [q3]: 1.12172e-06 Jy/beam 2026-10-09 02:17:36 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:36 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:36 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:36 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:36 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:36 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:36 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779843e-05 4.999996e+00 2026-10-09 02:17:36 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:35.958661 End time: 2026-10-09 02:17:35.977714 2026-10-09 02:17:36 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:36 INFO imstat::::casa ########################################## 2026-10-09 02:17:36 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:36 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 02:40:24.0001' ) 2026-10-09 02:17:36 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:36 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:36 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:36 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:36 INFO MSTransformManager::open Select data 2026-10-09 02:17:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:36 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 02:17:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 02:40:24.0001' successfully parsed 2026-10-09 02:17:36 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:35.990985 End time: 2026-10-09 02:17:36.557022 2026-10-09 02:17:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:37 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:37 INFO tclean::::casa ########################################## 2026-10-09 02:17:37 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:37 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:37 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:37 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:37 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:37 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:37 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.012727 2026-10-09 02:17:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:17:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:39 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:39 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:36.590561 End time: 2026-10-09 02:17:39.437036 2026-10-09 02:17:39 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:39 INFO tclean::::casa ########################################## 2026-10-09 02:17:39 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:39 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:39 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:39 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:39 2026****** 2026-10-09 02:17:39 INFO ImageFitter::fit+ 2026-10-09 02:17:39 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:39 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:39 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:39 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:39 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:39 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:39 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:39 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:39 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:39 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) 2026-10-09 02:17:39 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116894 Jy 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126508 Jy 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:39 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:39 INFO imstat::::casa ########################################## 2026-10-09 02:17:39 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:39 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:39 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:39 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:39 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:40 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:40 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:40 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:40 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:40 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:40 INFO imstat:::: Values --- 2026-10-09 02:17:40 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:40 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:40 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:40 INFO imstat:::: -- minimum value [min]: -7.78076e-05 Jy/beam 2026-10-09 02:17:40 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:40 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:17:40 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:40 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-09 02:17:40 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:40 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:40 INFO imstat:::: Statistics --- 2026-10-09 02:17:40 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:40 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:40 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:40 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:40 INFO imstat:::: -- Median of the pixel values [median]: -1.86848e-05 Jy/beam 2026-10-09 02:17:40 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73951e-05 Jy/beam 2026-10-09 02:17:40 INFO imstat:::: -- IQR [quartile]: 3.56676e-05 Jy/beam 2026-10-09 02:17:40 INFO imstat:::: -- First quartile [q1]: -3.45186e-05 Jy/beam 2026-10-09 02:17:40 INFO imstat:::: -- Third quartile [q3]: 1.14894e-06 Jy/beam 2026-10-09 02:17:40 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:40 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:40 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:40 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:40 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:40 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:40 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780757e-05 4.999996e+00 2026-10-09 02:17:40 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:39.492364 End time: 2026-10-09 02:17:39.512076 2026-10-09 02:17:40 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:40 INFO imstat::::casa ########################################## 2026-10-09 02:17:40 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:40 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40.100000528deg' ) 2026-10-09 02:17:40 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:40 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:40 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:40 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:40 INFO MSTransformManager::open Select data 2026-10-09 02:17:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:40 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40.100000528deg' successfully parsed 2026-10-09 02:17:40 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:39.524876 End time: 2026-10-09 02:17:39.917577 2026-10-09 02:17:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:40 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:40 INFO tclean::::casa ########################################## 2026-10-09 02:17:40 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:40 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:40 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:40 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:40 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:40 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:40 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:40 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:40 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:40 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:40 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:40 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:40 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010697 2026-10-09 02:17:40 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:40 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:17:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:42 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:42 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:42 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:42 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:42 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:39.937796 End time: 2026-10-09 02:17:41.996245 2026-10-09 02:17:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:42 INFO tclean::::casa ########################################## 2026-10-09 02:17:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:42 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:42 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:42 2026****** 2026-10-09 02:17:42 INFO ImageFitter::fit+ 2026-10-09 02:17:42 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:42 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:42 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:42 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:42 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:42 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116882 Jy 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:42 INFO imstat::::casa ########################################## 2026-10-09 02:17:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:42 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:42 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:42 INFO imstat:::: Values --- 2026-10-09 02:17:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:42 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:42 INFO imstat:::: -- minimum value [min]: -7.77982e-05 Jy/beam 2026-10-09 02:17:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 02:17:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:42 INFO imstat:::: Statistics --- 2026-10-09 02:17:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86711e-05 Jy/beam 2026-10-09 02:17:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73646e-05 Jy/beam 2026-10-09 02:17:42 INFO imstat:::: -- IQR [quartile]: 3.56367e-05 Jy/beam 2026-10-09 02:17:42 INFO imstat:::: -- First quartile [q1]: -3.45138e-05 Jy/beam 2026-10-09 02:17:42 INFO imstat:::: -- Third quartile [q3]: 1.12291e-06 Jy/beam 2026-10-09 02:17:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:42 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779823e-05 4.999996e+00 2026-10-09 02:17:42 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:42.035538 End time: 2026-10-09 02:17:42.054664 2026-10-09 02:17:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:42 INFO imstat::::casa ########################################## 2026-10-09 02:17:42 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:42 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 0.699877039rad' ) 2026-10-09 02:17:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:42 INFO MSTransformManager::open Select data 2026-10-09 02:17:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:42 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 0.699877039rad' successfully parsed 2026-10-09 02:17:42 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:42.066668 End time: 2026-10-09 02:17:42.535235 2026-10-09 02:17:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:43 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:43 INFO tclean::::casa ########################################## 2026-10-09 02:17:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:43 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:43 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:43 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:43 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:43 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.015195 2026-10-09 02:17:43 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:43 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:43 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374443277716637, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852561634033918, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:17:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:44 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:44 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:44 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:44 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:44 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:44 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:42.564712 End time: 2026-10-09 02:17:44.079153 2026-10-09 02:17:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:44 INFO tclean::::casa ########################################## 2026-10-09 02:17:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:44 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:44 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:44 2026****** 2026-10-09 02:17:44 INFO ImageFitter::fit+ 2026-10-09 02:17:44 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:44 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:44 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:44 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:44 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:44 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:44 INFO imstat::::casa ########################################## 2026-10-09 02:17:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:44 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:44 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:44 INFO imstat:::: Values --- 2026-10-09 02:17:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:44 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:44 INFO imstat:::: -- minimum value [min]: -7.77898e-05 Jy/beam 2026-10-09 02:17:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 02:17:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:44 INFO imstat:::: Statistics --- 2026-10-09 02:17:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86769e-05 Jy/beam 2026-10-09 02:17:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73662e-05 Jy/beam 2026-10-09 02:17:44 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-10-09 02:17:44 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-09 02:17:44 INFO imstat:::: -- Third quartile [q3]: 1.1187e-06 Jy/beam 2026-10-09 02:17:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:44 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778978e-05 4.999996e+00 2026-10-09 02:17:44 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:44.120691 End time: 2026-10-09 02:17:44.140391 2026-10-09 02:17:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:44 INFO imstat::::casa ########################################## 2026-10-09 02:17:44 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:44 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 +006d21m09.7433' ) 2026-10-09 02:17:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:44 INFO MSTransformManager::open Select data 2026-10-09 02:17:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 +006d21m09.7433' successfully parsed 2026-10-09 02:17:44 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:44.153874 End time: 2026-10-09 02:17:44.624308 2026-10-09 02:17:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:45 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:45 INFO tclean::::casa ########################################## 2026-10-09 02:17:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:45 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:45 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:45 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:45 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010426 2026-10-09 02:17:45 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:45 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:17:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:46 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:46 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:46 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:44.664741 End time: 2026-10-09 02:17:46.109760 2026-10-09 02:17:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:46 INFO tclean::::casa ########################################## 2026-10-09 02:17:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:46 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:46 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:46 2026****** 2026-10-09 02:17:46 INFO ImageFitter::fit+ 2026-10-09 02:17:46 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:46 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:46 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:46 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:46 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:46 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:46 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:46 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:46 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:46 INFO imstat::::casa ########################################## 2026-10-09 02:17:46 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:46 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:46 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:46 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:46 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:46 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:46 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:46 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:46 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:46 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:46 INFO imstat:::: Values --- 2026-10-09 02:17:46 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:46 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:46 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:46 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-10-09 02:17:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:17:46 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:46 INFO imstat:::: Statistics --- 2026-10-09 02:17:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:46 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:46 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:46 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-10-09 02:17:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-10-09 02:17:46 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-10-09 02:17:46 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-10-09 02:17:46 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-10-09 02:17:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:46 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777946e-05 4.999996e+00 2026-10-09 02:17:46 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:46.158274 End time: 2026-10-09 02:17:46.184774 2026-10-09 02:17:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:46 INFO imstat::::casa ########################################## 2026-10-09 02:17:46 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:46 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 00:25:24.6496' ) 2026-10-09 02:17:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:46 INFO MSTransformManager::open Select data 2026-10-09 02:17:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:46 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 02:17:46 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 00:25:24.6496' successfully parsed 2026-10-09 02:17:46 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:47 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:47 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:46.207778 End time: 2026-10-09 02:17:46.623038 2026-10-09 02:17:47 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:47 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:47 INFO tclean::::casa ########################################## 2026-10-09 02:17:47 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:47 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 ) 2026-10-09 02:17:47 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:47 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:47 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:47 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:47 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:47 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:47 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:47 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:47 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:47 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010259 2026-10-09 02:17:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:47 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:17:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:48 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:48 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:48 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:48 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:48 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:48 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:46.640808 End time: 2026-10-09 02:17:47.964687 2026-10-09 02:17:48 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:48 INFO tclean::::casa ########################################## 2026-10-09 02:17:48 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:48 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:48 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:48 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:48 2026****** 2026-10-09 02:17:48 INFO ImageFitter::fit+ 2026-10-09 02:17:48 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:48 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:48 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:48 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:48 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:48 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:48 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:48 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:48 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:48 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:48 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:48 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:48 INFO imstat::::casa ########################################## 2026-10-09 02:17:48 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:48 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:48 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:48 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:48 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:48 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:48 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:48 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-09 02:17:48 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:48 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 02:17:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 02:17:48 INFO imstat:::: Values --- 2026-10-09 02:17:48 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:48 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:48 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:48 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-10-09 02:17:48 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:48 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:48 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:48 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:17:48 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:48 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:48 INFO imstat:::: Statistics --- 2026-10-09 02:17:48 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:48 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:48 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:48 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:48 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-10-09 02:17:48 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-10-09 02:17:48 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-10-09 02:17:48 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-10-09 02:17:48 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-10-09 02:17:48 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:48 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:48 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:48 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:48 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:48 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:48 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787321e-05 4.999996e+00 2026-10-09 02:17:48 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:48.025085 End time: 2026-10-09 02:17:48.057752 2026-10-09 02:17:48 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:48 INFO imstat::::casa ########################################## 2026-10-09 02:17:48 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:48 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:48 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 6.352706472deg' ) 2026-10-09 02:17:48 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:48 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:48 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:48 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:48 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:48 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:48 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:48 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:48 INFO MSTransformManager::open Select data 2026-10-09 02:17:48 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 6.352706472deg' successfully parsed 2026-10-09 02:17:48 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:48.076139 End time: 2026-10-09 02:17:48.509774 2026-10-09 02:17:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:49 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:49 INFO tclean::::casa ########################################## 2026-10-09 02:17:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:49 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:49 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:49 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:49 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011131 2026-10-09 02:17:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:17:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:50 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:50 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:50 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:50 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:50 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:48.540221 End time: 2026-10-09 02:17:50.093618 2026-10-09 02:17:50 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:50 INFO tclean::::casa ########################################## 2026-10-09 02:17:50 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:50 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:50 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:50 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:50 2026****** 2026-10-09 02:17:50 INFO ImageFitter::fit+ 2026-10-09 02:17:50 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:50 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:50 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:50 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:50 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:50 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:50 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:50 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:50 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:50 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:50 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:50 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:50 INFO imstat::::casa ########################################## 2026-10-09 02:17:50 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:50 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:50 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:50 INFO imstat:::: Values --- 2026-10-09 02:17:50 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:50 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:50 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:50 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-10-09 02:17:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:17:50 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:50 INFO imstat:::: Statistics --- 2026-10-09 02:17:50 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:50 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:50 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:50 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-10-09 02:17:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-10-09 02:17:50 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-10-09 02:17:50 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-10-09 02:17:50 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-10-09 02:17:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:50 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777703e-05 4.999996e+00 2026-10-09 02:17:50 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:50.162963 End time: 2026-10-09 02:17:50.188931 2026-10-09 02:17:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:50 INFO imstat::::casa ########################################## 2026-10-09 02:17:50 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:50 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 0.110875644rad' ) 2026-10-09 02:17:50 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:50 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:50 INFO MSTransformManager::open Select data 2026-10-09 02:17:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 0.110875644rad' successfully parsed 2026-10-09 02:17:50 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:50.204066 End time: 2026-10-09 02:17:50.675468 2026-10-09 02:17:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:51 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:51 INFO tclean::::casa ########################################## 2026-10-09 02:17:51 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:51 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 ) 2026-10-09 02:17:51 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:51 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:51 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:51 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:51 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:51 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:51 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:51 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:51 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:51 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010405 2026-10-09 02:17:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:17:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:52 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:52 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:52 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:52 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:52 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:52 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:50.706706 End time: 2026-10-09 02:17:52.169989 2026-10-09 02:17:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:52 INFO tclean::::casa ########################################## 2026-10-09 02:17:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:52 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:52 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:52 2026****** 2026-10-09 02:17:52 INFO ImageFitter::fit+ 2026-10-09 02:17:52 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:52 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:52 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:52 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:52 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:52 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:52 INFO imstat::::casa ########################################## 2026-10-09 02:17:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:52 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:52 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:52 INFO imstat:::: Values --- 2026-10-09 02:17:52 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:52 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:52 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-10-09 02:17:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:17:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 02:17:52 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:52 INFO imstat:::: Statistics --- 2026-10-09 02:17:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:52 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:52 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:52 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-09 02:17:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-10-09 02:17:52 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-10-09 02:17:52 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-10-09 02:17:52 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-10-09 02:17:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:52 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778491e-05 4.999996e+00 2026-10-09 02:17:52 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:52.256090 End time: 2026-10-09 02:17:52.285654 2026-10-09 02:17:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:52 INFO imstat::::casa ########################################## 2026-10-09 02:17:52 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:52 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 05:00:21.5326 +006d21m09.7433' ) 2026-10-09 02:17:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:52 INFO MSTransformManager::open Select data 2026-10-09 02:17:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:52 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 +006d21m09.7433' successfully parsed 2026-10-09 02:17:52 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:52.302609 End time: 2026-10-09 02:17:52.695399 2026-10-09 02:17:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:53 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:53 INFO tclean::::casa ########################################## 2026-10-09 02:17:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:53 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:53 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:53 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:53 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011275 2026-10-09 02:17:53 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:53 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:17:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:54 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:54 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:54 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:54 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:54 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:54 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:52.713906 End time: 2026-10-09 02:17:54.009658 2026-10-09 02:17:54 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:54 INFO tclean::::casa ########################################## 2026-10-09 02:17:54 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:54 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:54 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:54 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:54 2026****** 2026-10-09 02:17:54 INFO ImageFitter::fit+ 2026-10-09 02:17:54 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:54 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:54 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:54 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:54 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:54 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:54 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:54 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:54 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:54 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:54 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:54 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:54 INFO imstat::::casa ########################################## 2026-10-09 02:17:54 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:54 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:54 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:54 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:54 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:54 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:54 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:54 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:54 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:54 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:54 INFO imstat:::: Values --- 2026-10-09 02:17:54 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:54 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:54 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:54 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-10-09 02:17:54 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:54 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:54 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:54 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:17:54 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:54 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:54 INFO imstat:::: Statistics --- 2026-10-09 02:17:54 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:54 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:54 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:54 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:54 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-10-09 02:17:54 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-10-09 02:17:54 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-10-09 02:17:54 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-10-09 02:17:54 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-10-09 02:17:54 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:54 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:54 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:54 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:54 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:54 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:54 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777946e-05 4.999996e+00 2026-10-09 02:17:54 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:54.061743 End time: 2026-10-09 02:17:54.098606 2026-10-09 02:17:54 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:54 INFO imstat::::casa ########################################## 2026-10-09 02:17:54 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:54 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:54 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 00:25:24.6496' ) 2026-10-09 02:17:54 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:54 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:54 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:54 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:54 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:54 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:54 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:54 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:54 INFO MSTransformManager::open Select data 2026-10-09 02:17:54 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 02:17:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 00:25:24.6496' successfully parsed 2026-10-09 02:17:54 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:54.117857 End time: 2026-10-09 02:17:54.622994 2026-10-09 02:17:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:55 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:55 INFO tclean::::casa ########################################## 2026-10-09 02:17:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:55 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:55 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:55 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:55 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:55 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:55 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:55 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:55 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:55 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:55 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:55 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:55 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:55 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024152 2026-10-09 02:17:55 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:55 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:55 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:17:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:56 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:56 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:54.647006 End time: 2026-10-09 02:17:56.364939 2026-10-09 02:17:56 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:56 INFO tclean::::casa ########################################## 2026-10-09 02:17:56 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:56 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:56 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:56 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:56 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:56 2026****** 2026-10-09 02:17:56 INFO ImageFitter::fit+ 2026-10-09 02:17:56 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:56 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:56 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:56 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:56 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:56 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:56 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:56 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:56 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:56 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:56 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:56 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:56 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:56 INFO imstat::::casa ########################################## 2026-10-09 02:17:56 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:56 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:56 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:56 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:56 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:56 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:56 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:56 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-09 02:17:56 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:56 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 02:17:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 02:17:56 INFO imstat:::: Values --- 2026-10-09 02:17:56 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:56 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:56 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:56 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-10-09 02:17:56 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:56 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:56 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:56 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:17:56 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:56 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:56 INFO imstat:::: Statistics --- 2026-10-09 02:17:56 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:56 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:56 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:56 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:56 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-10-09 02:17:56 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-10-09 02:17:56 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-10-09 02:17:56 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-10-09 02:17:56 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-10-09 02:17:56 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:56 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:56 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:56 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:56 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:56 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:56 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787321e-05 4.999996e+00 2026-10-09 02:17:56 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:56.431983 End time: 2026-10-09 02:17:56.458519 2026-10-09 02:17:56 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:56 INFO imstat::::casa ########################################## 2026-10-09 02:17:56 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:56 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 6.352706472deg' ) 2026-10-09 02:17:56 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:56 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:56 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:57 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:57 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:57 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:57 INFO MSTransformManager::open Select data 2026-10-09 02:17:57 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 6.352706472deg' successfully parsed 2026-10-09 02:17:57 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:56.473534 End time: 2026-10-09 02:17:57.134157 2026-10-09 02:17:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:57 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:57 INFO tclean::::casa ########################################## 2026-10-09 02:17:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:57 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:57 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:17:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:17:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.012323 2026-10-09 02:17:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:17:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:17:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:17:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:17:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:17:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:17:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:17:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:17:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:17:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:17:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:17:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:17:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:17:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:17:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:17:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:17:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:17:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:17:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:17:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:17:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:17:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:17:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:17:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:17:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:17:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:17:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:17:59 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:17:59 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:17:59 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:17:59 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:17:59 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:17:59 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:57.160976 End time: 2026-10-09 02:17:58.874800 2026-10-09 02:17:59 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:17:59 INFO tclean::::casa ########################################## 2026-10-09 02:17:59 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:17:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:59 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:17:59 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:17:59 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:17:59 2026****** 2026-10-09 02:17:59 INFO ImageFitter::fit+ 2026-10-09 02:17:59 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:17:59 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:17:59 INFO ImageFitter::fit+ --- region: 2026-10-09 02:17:59 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:17:59 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:17:59 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:17:59 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:17:59 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:17:59 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:17:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:59 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:17:59 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:17:59 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:17:59 INFO imstat::::casa ########################################## 2026-10-09 02:17:59 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:17:59 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:17:59 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:17:59 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:17:59 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:17:59 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:17:59 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:17:59 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:17:59 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:17:59 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:17:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:17:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:17:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:17:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:17:59 INFO imstat:::: Values --- 2026-10-09 02:17:59 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:17:59 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:17:59 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:17:59 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-10-09 02:17:59 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:17:59 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:17:59 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:17:59 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:17:59 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:17:59 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:17:59 INFO imstat:::: Statistics --- 2026-10-09 02:17:59 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:17:59 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:17:59 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:17:59 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:17:59 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-10-09 02:17:59 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-10-09 02:17:59 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-10-09 02:17:59 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-10-09 02:17:59 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-10-09 02:17:59 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:17:59 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:17:59 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:17:59 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:17:59 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:17:59 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:17:59 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777703e-05 4.999996e+00 2026-10-09 02:17:59 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:17:58.922443 End time: 2026-10-09 02:17:58.943948 2026-10-09 02:17:59 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:17:59 INFO imstat::::casa ########################################## 2026-10-09 02:17:59 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:17:59 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 0.110875644rad' ) 2026-10-09 02:17:59 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:17:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:17:59 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:17:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:17:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:17:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:17:59 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:17:59 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:17:59 INFO MSTransformManager::open Select data 2026-10-09 02:17:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:17:59 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:17:59 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 0.110875644rad' successfully parsed 2026-10-09 02:17:59 INFO phaseshift::::casa Shift phase center 2026-10-09 02:17:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:17:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:17:58.956868 End time: 2026-10-09 02:17:59.365617 2026-10-09 02:17:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:17:59 INFO phaseshift::::casa ########################################## 2026-10-09 02:17:59 INFO tclean::::casa ########################################## 2026-10-09 02:17:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:17:59 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:17:59 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:17:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:17:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:17:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:17:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:17:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:17:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:17:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:17:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:17:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:17:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:00 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.012507 2026-10-09 02:18:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:18:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:01 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:01 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:01 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:17:59.383870 End time: 2026-10-09 02:18:00.898006 2026-10-09 02:18:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:01 INFO tclean::::casa ########################################## 2026-10-09 02:18:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:01 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) 2026-10-09 02:18:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:01 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:01 2026****** 2026-10-09 02:18:01 INFO ImageFitter::fit+ 2026-10-09 02:18:01 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:01 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:01 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:01 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:01 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:01 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) 2026-10-09 02:18:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:01 INFO imstat::::casa ########################################## 2026-10-09 02:18:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:01 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 ) 2026-10-09 02:18:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:01 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) 2026-10-09 02:18:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:01 INFO imstat:::: Values --- 2026-10-09 02:18:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:01 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:01 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-10-09 02:18:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:18:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 02:18:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:01 INFO imstat:::: Statistics --- 2026-10-09 02:18:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-09 02:18:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-10-09 02:18:01 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-10-09 02:18:01 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-10-09 02:18:01 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-10-09 02:18:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:01 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778491e-05 4.999996e+00 2026-10-09 02:18:01 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:00.947561 End time: 2026-10-09 02:18:00.969398 2026-10-09 02:18:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:01 INFO imstat::::casa ########################################## 2026-10-09 02:18:01 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg +006d21m09.7433' ) 2026-10-09 02:18:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:01 INFO MSTransformManager::open Select data 2026-10-09 02:18:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:01 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg +006d21m09.7433' successfully parsed 2026-10-09 02:18:01 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:01 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:00.982157 End time: 2026-10-09 02:18:01.474538 2026-10-09 02:18:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:01 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:02 INFO tclean::::casa ########################################## 2026-10-09 02:18:02 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:02 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 ) 2026-10-09 02:18:02 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:02 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:02 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:02 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:02 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:02 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:02 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:02 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:02 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:02 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:02 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:02 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017925 2026-10-09 02:18:02 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:02 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:04 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:18:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:05 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:05 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:05 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:01.511083 End time: 2026-10-09 02:18:04.979525 2026-10-09 02:18:05 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:05 INFO tclean::::casa ########################################## 2026-10-09 02:18:05 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:05 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:05 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:05 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:05 2026****** 2026-10-09 02:18:05 INFO ImageFitter::fit+ 2026-10-09 02:18:05 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:05 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:05 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:05 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:05 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:05 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:05 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:05 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:05 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:05 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:05 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116867 Jy 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126483 Jy 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:05 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:05 INFO imstat::::casa ########################################## 2026-10-09 02:18:05 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:05 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:05 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:05 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:05 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:05 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:05 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:05 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:05 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:05 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:05 INFO imstat:::: Values --- 2026-10-09 02:18:05 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:05 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:05 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:05 INFO imstat:::: -- minimum value [min]: -7.77768e-05 Jy/beam 2026-10-09 02:18:05 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:05 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:05 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:05 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:05 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:05 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:05 INFO imstat:::: Statistics --- 2026-10-09 02:18:05 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:05 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:05 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:05 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:05 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-10-09 02:18:05 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73609e-05 Jy/beam 2026-10-09 02:18:05 INFO imstat:::: -- IQR [quartile]: 3.56013e-05 Jy/beam 2026-10-09 02:18:05 INFO imstat:::: -- First quartile [q1]: -3.4507e-05 Jy/beam 2026-10-09 02:18:05 INFO imstat:::: -- Third quartile [q3]: 1.09435e-06 Jy/beam 2026-10-09 02:18:05 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:05 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:05 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:05 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:05 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:05 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:05 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777678e-05 4.999996e+00 2026-10-09 02:18:05 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:05.049972 End time: 2026-10-09 02:18:05.076276 2026-10-09 02:18:05 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:05 INFO imstat::::casa ########################################## 2026-10-09 02:18:05 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:05 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:05 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 00:25:24.6496' ) 2026-10-09 02:18:05 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:05 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:05 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:05 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:05 INFO MSTransformManager::open Select data 2026-10-09 02:18:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 02:18:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 00:25:24.6496' successfully parsed 2026-10-09 02:18:05 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:05.099090 End time: 2026-10-09 02:18:05.532803 2026-10-09 02:18:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:06 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:06 INFO tclean::::casa ########################################## 2026-10-09 02:18:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:06 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 ) 2026-10-09 02:18:06 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:06 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:06 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010557 2026-10-09 02:18:06 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:06 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:18:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:07 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:07 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:07 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:05.550284 End time: 2026-10-09 02:18:07.059948 2026-10-09 02:18:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:07 INFO tclean::::casa ########################################## 2026-10-09 02:18:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:07 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:07 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:07 2026****** 2026-10-09 02:18:07 INFO ImageFitter::fit+ 2026-10-09 02:18:07 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:07 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:07 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:07 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:07 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:07 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116903 Jy 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126517 Jy 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:07 INFO imstat::::casa ########################################## 2026-10-09 02:18:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:07 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:07 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-09 02:18:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 02:18:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 02:18:07 INFO imstat:::: Values --- 2026-10-09 02:18:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:07 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:07 INFO imstat:::: -- minimum value [min]: -7.78731e-05 Jy/beam 2026-10-09 02:18:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:07 INFO imstat:::: Statistics --- 2026-10-09 02:18:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86503e-05 Jy/beam 2026-10-09 02:18:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73798e-05 Jy/beam 2026-10-09 02:18:07 INFO imstat:::: -- IQR [quartile]: 3.56966e-05 Jy/beam 2026-10-09 02:18:07 INFO imstat:::: -- First quartile [q1]: -3.45352e-05 Jy/beam 2026-10-09 02:18:07 INFO imstat:::: -- Third quartile [q3]: 1.16146e-06 Jy/beam 2026-10-09 02:18:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:07 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787306e-05 4.999996e+00 2026-10-09 02:18:07 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:07.125674 End time: 2026-10-09 02:18:07.150493 2026-10-09 02:18:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:07 INFO imstat::::casa ########################################## 2026-10-09 02:18:07 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:07 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 6.352706472deg' ) 2026-10-09 02:18:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:07 INFO MSTransformManager::open Select data 2026-10-09 02:18:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 6.352706472deg' successfully parsed 2026-10-09 02:18:07 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:07.165647 End time: 2026-10-09 02:18:07.567659 2026-10-09 02:18:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:08 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:08 INFO tclean::::casa ########################################## 2026-10-09 02:18:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:08 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:08 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:08 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:08 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.016672 2026-10-09 02:18:08 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:08 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:18:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:10 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:10 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:07.605276 End time: 2026-10-09 02:18:09.674218 2026-10-09 02:18:10 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:10 INFO tclean::::casa ########################################## 2026-10-09 02:18:10 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:10 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:10 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:10 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:10 2026****** 2026-10-09 02:18:10 INFO ImageFitter::fit+ 2026-10-09 02:18:10 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:10 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:10 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:10 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:10 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:10 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:10 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:10 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:10 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:10 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:10 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011687 Jy 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:10 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:10 INFO imstat::::casa ########################################## 2026-10-09 02:18:10 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:10 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:10 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:10 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:10 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:10 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:10 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:10 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:10 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:10 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:10 INFO imstat:::: Values --- 2026-10-09 02:18:10 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:10 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:10 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:10 INFO imstat:::: -- minimum value [min]: -7.77771e-05 Jy/beam 2026-10-09 02:18:10 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:10 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:10 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:10 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:10 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:10 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:10 INFO imstat:::: Statistics --- 2026-10-09 02:18:10 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:10 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:10 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:10 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:10 INFO imstat:::: -- Median of the pixel values [median]: -1.86715e-05 Jy/beam 2026-10-09 02:18:10 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73619e-05 Jy/beam 2026-10-09 02:18:10 INFO imstat:::: -- IQR [quartile]: 3.56021e-05 Jy/beam 2026-10-09 02:18:10 INFO imstat:::: -- First quartile [q1]: -3.45061e-05 Jy/beam 2026-10-09 02:18:10 INFO imstat:::: -- Third quartile [q3]: 1.09605e-06 Jy/beam 2026-10-09 02:18:10 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:10 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:10 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:10 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:10 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:10 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:10 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777705e-05 4.999996e+00 2026-10-09 02:18:10 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:09.730159 End time: 2026-10-09 02:18:09.752467 2026-10-09 02:18:10 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:10 INFO imstat::::casa ########################################## 2026-10-09 02:18:10 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:10 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 0.110875644rad' ) 2026-10-09 02:18:10 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:10 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:10 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:10 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:10 INFO MSTransformManager::open Select data 2026-10-09 02:18:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 0.110875644rad' successfully parsed 2026-10-09 02:18:10 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:09.765588 End time: 2026-10-09 02:18:10.328370 2026-10-09 02:18:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:10 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:10 INFO tclean::::casa ########################################## 2026-10-09 02:18:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:10 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:10 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:11 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:11 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:11 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:11 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:11 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:11 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:11 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:11 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:11 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.01755 2026-10-09 02:18:11 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:11 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:11 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:18:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:12 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:12 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:12 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:10.357768 End time: 2026-10-09 02:18:11.840555 2026-10-09 02:18:12 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:12 INFO tclean::::casa ########################################## 2026-10-09 02:18:12 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:12 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:12 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:12 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:12 2026****** 2026-10-09 02:18:12 INFO ImageFitter::fit+ 2026-10-09 02:18:12 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:12 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:12 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:12 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:12 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:12 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:12 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:12 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:12 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:12 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:12 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126482 Jy 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:12 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:12 INFO imstat::::casa ########################################## 2026-10-09 02:18:12 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:12 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:12 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:12 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:12 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:12 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:12 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:12 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:12 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:12 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:12 INFO imstat:::: Values --- 2026-10-09 02:18:12 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:12 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:12 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:12 INFO imstat:::: -- minimum value [min]: -7.77855e-05 Jy/beam 2026-10-09 02:18:12 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:12 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:18:12 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:12 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 02:18:12 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:12 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:12 INFO imstat:::: Statistics --- 2026-10-09 02:18:12 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:12 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:12 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:12 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:12 INFO imstat:::: -- Median of the pixel values [median]: -1.86732e-05 Jy/beam 2026-10-09 02:18:12 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73562e-05 Jy/beam 2026-10-09 02:18:12 INFO imstat:::: -- IQR [quartile]: 3.56008e-05 Jy/beam 2026-10-09 02:18:12 INFO imstat:::: -- First quartile [q1]: -3.45107e-05 Jy/beam 2026-10-09 02:18:12 INFO imstat:::: -- Third quartile [q3]: 1.09015e-06 Jy/beam 2026-10-09 02:18:12 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:12 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:12 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:12 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:12 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:12 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:12 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778549e-05 4.999996e+00 2026-10-09 02:18:12 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:11.895321 End time: 2026-10-09 02:18:11.917705 2026-10-09 02:18:12 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:12 INFO imstat::::casa ########################################## 2026-10-09 02:18:12 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:12 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad +006d21m09.7433' ) 2026-10-09 02:18:12 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:12 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:12 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:12 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:12 INFO MSTransformManager::open Select data 2026-10-09 02:18:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad +006d21m09.7433' successfully parsed 2026-10-09 02:18:12 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:11.930355 End time: 2026-10-09 02:18:12.427784 2026-10-09 02:18:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:12 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:12 INFO tclean::::casa ########################################## 2026-10-09 02:18:12 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:12 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 ) 2026-10-09 02:18:12 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:12 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:12 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:13 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:13 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:13 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:13 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:13 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:13 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:13 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:13 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:13 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010363 2026-10-09 02:18:13 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:13 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:18:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:14 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:14 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:12.445591 End time: 2026-10-09 02:18:13.970204 2026-10-09 02:18:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:14 INFO tclean::::casa ########################################## 2026-10-09 02:18:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:14 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:14 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:14 2026****** 2026-10-09 02:18:14 INFO ImageFitter::fit+ 2026-10-09 02:18:14 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:14 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:14 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:14 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:14 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:14 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:14 INFO imstat::::casa ########################################## 2026-10-09 02:18:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:14 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:14 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:14 INFO imstat:::: Values --- 2026-10-09 02:18:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:14 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:14 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-09 02:18:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:14 INFO imstat:::: Statistics --- 2026-10-09 02:18:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86669e-05 Jy/beam 2026-10-09 02:18:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73635e-05 Jy/beam 2026-10-09 02:18:14 INFO imstat:::: -- IQR [quartile]: 3.56081e-05 Jy/beam 2026-10-09 02:18:14 INFO imstat:::: -- First quartile [q1]: -3.45085e-05 Jy/beam 2026-10-09 02:18:14 INFO imstat:::: -- Third quartile [q3]: 1.09959e-06 Jy/beam 2026-10-09 02:18:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:14 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778013e-05 4.999996e+00 2026-10-09 02:18:14 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:14.035701 End time: 2026-10-09 02:18:14.061540 2026-10-09 02:18:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:14 INFO imstat::::casa ########################################## 2026-10-09 02:18:14 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:14 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 00:25:24.6496' ) 2026-10-09 02:18:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:14 INFO MSTransformManager::open Select data 2026-10-09 02:18:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 02:18:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 00:25:24.6496' successfully parsed 2026-10-09 02:18:14 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:14.075943 End time: 2026-10-09 02:18:14.513866 2026-10-09 02:18:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:15 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:15 INFO tclean::::casa ########################################## 2026-10-09 02:18:15 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:15 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:15 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:15 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:15 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:15 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:15 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:15 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:15 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:15 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:15 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:15 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.019793 2026-10-09 02:18:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:15 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:18:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:16 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:14.532364 End time: 2026-10-09 02:18:15.918436 2026-10-09 02:18:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:16 INFO tclean::::casa ########################################## 2026-10-09 02:18:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:16 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:16 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:16 2026****** 2026-10-09 02:18:16 INFO ImageFitter::fit+ 2026-10-09 02:18:16 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:16 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:16 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:16 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:16 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:16 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116905 Jy 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000041 +/- 0.000777 arcsec 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- ra: 127.999941 +/- 0.000127 pixels 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- dec: 127.999954 +/- 0.000097 pixels 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:16 INFO imstat::::casa ########################################## 2026-10-09 02:18:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:16 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:16 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:16 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-09 02:18:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 02:18:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 02:18:16 INFO imstat:::: Values --- 2026-10-09 02:18:16 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:16 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:16 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:16 INFO imstat:::: -- minimum value [min]: -7.78774e-05 Jy/beam 2026-10-09 02:18:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:16 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:16 INFO imstat:::: Statistics --- 2026-10-09 02:18:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:16 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:16 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:16 INFO imstat:::: -- Median of the pixel values [median]: -1.86532e-05 Jy/beam 2026-10-09 02:18:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73779e-05 Jy/beam 2026-10-09 02:18:16 INFO imstat:::: -- IQR [quartile]: 3.5701e-05 Jy/beam 2026-10-09 02:18:16 INFO imstat:::: -- First quartile [q1]: -3.45356e-05 Jy/beam 2026-10-09 02:18:16 INFO imstat:::: -- Third quartile [q3]: 1.16544e-06 Jy/beam 2026-10-09 02:18:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:16 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787745e-05 4.999996e+00 2026-10-09 02:18:16 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:15.990996 End time: 2026-10-09 02:18:16.018018 2026-10-09 02:18:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:16 INFO imstat::::casa ########################################## 2026-10-09 02:18:16 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:16 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 6.352706472deg' ) 2026-10-09 02:18:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:16 INFO MSTransformManager::open Select data 2026-10-09 02:18:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 6.352706472deg' successfully parsed 2026-10-09 02:18:16 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:16.034085 End time: 2026-10-09 02:18:17.107308 2026-10-09 02:18:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:17 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:17 INFO tclean::::casa ########################################## 2026-10-09 02:18:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:17 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 ) 2026-10-09 02:18:17 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:17 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02489 2026-10-09 02:18:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:18 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:18:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:19 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:19 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:19 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:19 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:19 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:19 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:17.129428 End time: 2026-10-09 02:18:19.366802 2026-10-09 02:18:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:19 INFO tclean::::casa ########################################## 2026-10-09 02:18:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:19 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:19 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:19 2026****** 2026-10-09 02:18:19 INFO ImageFitter::fit+ 2026-10-09 02:18:19 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:19 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:19 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:19 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:19 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:19 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:19 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:19 INFO imstat::::casa ########################################## 2026-10-09 02:18:19 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:19 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:19 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:19 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:19 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:19 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:19 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:19 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:19 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:19 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:19 INFO imstat:::: Values --- 2026-10-09 02:18:19 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:19 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:19 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:19 INFO imstat:::: -- minimum value [min]: -7.77798e-05 Jy/beam 2026-10-09 02:18:19 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:19 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:19 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:19 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:19 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:19 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:19 INFO imstat:::: Statistics --- 2026-10-09 02:18:19 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:19 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:19 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:19 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:19 INFO imstat:::: -- Median of the pixel values [median]: -1.86675e-05 Jy/beam 2026-10-09 02:18:19 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73645e-05 Jy/beam 2026-10-09 02:18:19 INFO imstat:::: -- IQR [quartile]: 3.56077e-05 Jy/beam 2026-10-09 02:18:19 INFO imstat:::: -- First quartile [q1]: -3.45073e-05 Jy/beam 2026-10-09 02:18:19 INFO imstat:::: -- Third quartile [q3]: 1.1004e-06 Jy/beam 2026-10-09 02:18:19 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:19 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:19 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:19 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:19 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:19 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:19 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777975e-05 4.999996e+00 2026-10-09 02:18:19 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:19.431406 End time: 2026-10-09 02:18:19.456530 2026-10-09 02:18:19 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:19 INFO imstat::::casa ########################################## 2026-10-09 02:18:19 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:19 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 0.110875644rad' ) 2026-10-09 02:18:19 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:19 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:19 INFO MSTransformManager::open Select data 2026-10-09 02:18:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 0.110875644rad' successfully parsed 2026-10-09 02:18:20 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:19.471569 End time: 2026-10-09 02:18:20.056466 2026-10-09 02:18:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:20 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:20 INFO tclean::::casa ########################################## 2026-10-09 02:18:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:20 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:20 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:20 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:20 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.015602 2026-10-09 02:18:20 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:20 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:18:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:22 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:22 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:22 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:20.074058 End time: 2026-10-09 02:18:22.166421 2026-10-09 02:18:22 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:22 INFO tclean::::casa ########################################## 2026-10-09 02:18:22 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:22 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) 2026-10-09 02:18:22 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:22 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:22 2026****** 2026-10-09 02:18:22 INFO ImageFitter::fit+ 2026-10-09 02:18:22 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:22 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:22 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:22 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:22 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:22 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:22 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:22 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:22 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:22 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) 2026-10-09 02:18:22 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000002 +/- 0.000777 arcsec 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- ra: 128.000014 +/- 0.000127 pixels 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- dec: 127.999998 +/- 0.000097 pixels 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:22 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:22 INFO imstat::::casa ########################################## 2026-10-09 02:18:22 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:22 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 ) 2026-10-09 02:18:22 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:22 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:22 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:22 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:22 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:22 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) 2026-10-09 02:18:22 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:22 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:22 INFO imstat:::: Values --- 2026-10-09 02:18:22 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:22 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:22 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:22 INFO imstat:::: -- minimum value [min]: -7.77816e-05 Jy/beam 2026-10-09 02:18:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:18:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 02:18:22 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:22 INFO imstat:::: Statistics --- 2026-10-09 02:18:22 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:22 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:22 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:22 INFO imstat:::: -- Median of the pixel values [median]: -1.8676e-05 Jy/beam 2026-10-09 02:18:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73584e-05 Jy/beam 2026-10-09 02:18:22 INFO imstat:::: -- IQR [quartile]: 3.56038e-05 Jy/beam 2026-10-09 02:18:22 INFO imstat:::: -- First quartile [q1]: -3.45104e-05 Jy/beam 2026-10-09 02:18:22 INFO imstat:::: -- Third quartile [q3]: 1.09331e-06 Jy/beam 2026-10-09 02:18:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:22 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778164e-05 4.999996e+00 2026-10-09 02:18:22 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:22.220991 End time: 2026-10-09 02:18:22.248398 2026-10-09 02:18:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:22 INFO imstat::::casa ########################################## 2026-10-09 02:18:22 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:22 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39d58m05.8512' ) 2026-10-09 02:18:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:22 INFO MSTransformManager::open Select data 2026-10-09 02:18:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:22 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39d58m05.8512' successfully parsed 2026-10-09 02:18:22 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:23 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:23 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:22.260529 End time: 2026-10-09 02:18:22.753319 2026-10-09 02:18:23 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:23 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:23 INFO tclean::::casa ########################################## 2026-10-09 02:18:23 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:23 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 ) 2026-10-09 02:18:23 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:23 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:23 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:23 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:23 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:23 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:23 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:23 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:23 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:23 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.01147 2026-10-09 02:18:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:24 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:18:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:25 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:25 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:25 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:25 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:25 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:25 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:22.773484 End time: 2026-10-09 02:18:24.750036 2026-10-09 02:18:25 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:25 INFO tclean::::casa ########################################## 2026-10-09 02:18:25 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:25 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:25 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:25 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:25 2026****** 2026-10-09 02:18:25 INFO ImageFitter::fit+ 2026-10-09 02:18:25 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:25 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:25 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:25 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:25 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:25 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:25 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:25 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:25 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:25 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:25 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:25 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:25 INFO imstat::::casa ########################################## 2026-10-09 02:18:25 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:25 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:25 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:25 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:25 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:25 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:25 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:25 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:25 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:25 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:25 INFO imstat:::: Values --- 2026-10-09 02:18:25 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:25 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:25 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:25 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-09 02:18:25 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:25 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:25 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:25 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:25 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:25 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:25 INFO imstat:::: Statistics --- 2026-10-09 02:18:25 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:25 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:25 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:25 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:25 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-09 02:18:25 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-09 02:18:25 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-09 02:18:25 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-09 02:18:25 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-09 02:18:25 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:25 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:25 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:25 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:25 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:25 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:25 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-10-09 02:18:25 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:24.813196 End time: 2026-10-09 02:18:24.837421 2026-10-09 02:18:25 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:25 INFO imstat::::casa ########################################## 2026-10-09 02:18:25 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:25 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 02:39:52.3901' ) 2026-10-09 02:18:25 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:25 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:25 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:25 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:25 INFO MSTransformManager::open Select data 2026-10-09 02:18:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:25 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 02:18:25 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 02:39:52.3901' successfully parsed 2026-10-09 02:18:25 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:24.851977 End time: 2026-10-09 02:18:25.235068 2026-10-09 02:18:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:25 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:25 INFO tclean::::casa ########################################## 2026-10-09 02:18:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:25 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:25 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:25 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:25 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:25 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011766 2026-10-09 02:18:25 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:26 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:18:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:26 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:26 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:26 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:26 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:26 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:27 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:25.253501 End time: 2026-10-09 02:18:26.555192 2026-10-09 02:18:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:27 INFO tclean::::casa ########################################## 2026-10-09 02:18:27 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:27 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:27 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:27 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:27 2026****** 2026-10-09 02:18:27 INFO ImageFitter::fit+ 2026-10-09 02:18:27 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:27 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:27 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:27 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:27 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:27 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:27 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:27 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:27 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:27 INFO imstat::::casa ########################################## 2026-10-09 02:18:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:27 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:27 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:27 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:27 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:27 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:27 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:27 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-09 02:18:27 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:27 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 02:18:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 02:18:27 INFO imstat:::: Values --- 2026-10-09 02:18:27 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:27 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:27 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:27 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-10-09 02:18:27 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:27 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:27 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:27 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:27 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:27 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:27 INFO imstat:::: Statistics --- 2026-10-09 02:18:27 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:27 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:27 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:27 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:27 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-10-09 02:18:27 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-10-09 02:18:27 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-10-09 02:18:27 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-10-09 02:18:27 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-10-09 02:18:27 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:27 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:27 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:27 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:27 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:27 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:27 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.782251e-05 4.999996e+00 2026-10-09 02:18:27 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:26.621597 End time: 2026-10-09 02:18:26.646593 2026-10-09 02:18:27 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:27 INFO imstat::::casa ########################################## 2026-10-09 02:18:27 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:27 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39.968292000deg' ) 2026-10-09 02:18:27 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:27 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:27 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:27 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:27 INFO MSTransformManager::open Select data 2026-10-09 02:18:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39.968292000deg' successfully parsed 2026-10-09 02:18:27 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:27 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:27 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:26.661677 End time: 2026-10-09 02:18:27.029359 2026-10-09 02:18:27 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:27 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:27 INFO tclean::::casa ########################################## 2026-10-09 02:18:27 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:27 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:27 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:27 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:27 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:27 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:27 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:27 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:27 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:27 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:27 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:27 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:27 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:27 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.019423 2026-10-09 02:18:27 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:28 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:18:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:29 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:27.048740 End time: 2026-10-09 02:18:28.996468 2026-10-09 02:18:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:29 INFO tclean::::casa ########################################## 2026-10-09 02:18:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:29 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:29 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:29 2026****** 2026-10-09 02:18:29 INFO ImageFitter::fit+ 2026-10-09 02:18:29 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:29 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:29 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:29 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:29 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:29 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:29 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:29 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:29 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:29 INFO imstat::::casa ########################################## 2026-10-09 02:18:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:29 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:29 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:29 INFO imstat:::: Values --- 2026-10-09 02:18:29 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:29 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:29 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-09 02:18:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:29 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:29 INFO imstat:::: Statistics --- 2026-10-09 02:18:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:29 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:29 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:29 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-09 02:18:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-09 02:18:29 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-09 02:18:29 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-09 02:18:29 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-09 02:18:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:29 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-10-09 02:18:29 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:29.040113 End time: 2026-10-09 02:18:29.059883 2026-10-09 02:18:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:29 INFO imstat::::casa ########################################## 2026-10-09 02:18:29 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:29 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 0.697578292rad' ) 2026-10-09 02:18:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:29 INFO MSTransformManager::open Select data 2026-10-09 02:18:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 0.697578292rad' successfully parsed 2026-10-09 02:18:29 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:29 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:29 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:29.071894 End time: 2026-10-09 02:18:29.437944 2026-10-09 02:18:29 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:29 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:29 INFO tclean::::casa ########################################## 2026-10-09 02:18:29 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:29 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:29 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:29 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:29 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:30 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:30 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.014708 2026-10-09 02:18:30 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:30 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:18:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:32 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:32 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:32 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:32 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:32 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:32 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:29.455208 End time: 2026-10-09 02:18:31.951399 2026-10-09 02:18:32 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:32 INFO tclean::::casa ########################################## 2026-10-09 02:18:32 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:32 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:32 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:32 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:32 2026****** 2026-10-09 02:18:32 INFO ImageFitter::fit+ 2026-10-09 02:18:32 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:32 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:32 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:32 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:32 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:32 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:32 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:32 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:32 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:32 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:32 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:32 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:32 INFO imstat::::casa ########################################## 2026-10-09 02:18:32 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:32 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:32 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:32 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:32 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:32 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:32 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:32 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:32 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:32 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:32 INFO imstat:::: Values --- 2026-10-09 02:18:32 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:32 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:32 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:32 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-10-09 02:18:32 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:32 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:32 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:32 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:32 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:32 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:32 INFO imstat:::: Statistics --- 2026-10-09 02:18:32 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:32 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:32 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:32 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:32 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-10-09 02:18:32 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-10-09 02:18:32 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-10-09 02:18:32 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-10-09 02:18:32 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-10-09 02:18:32 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:32 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:32 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:32 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:32 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:32 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:32 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778897e-05 4.999996e+00 2026-10-09 02:18:32 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:32.018558 End time: 2026-10-09 02:18:32.044836 2026-10-09 02:18:32 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:32 INFO imstat::::casa ########################################## 2026-10-09 02:18:32 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:32 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:32 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39d58m05.8512' ) 2026-10-09 02:18:32 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:32 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:32 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:32 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:32 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:32 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:32 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:32 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:32 INFO MSTransformManager::open Select data 2026-10-09 02:18:32 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39d58m05.8512' successfully parsed 2026-10-09 02:18:32 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:33 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:32.059358 End time: 2026-10-09 02:18:32.709777 2026-10-09 02:18:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:33 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:33 INFO tclean::::casa ########################################## 2026-10-09 02:18:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:33 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:33 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:33 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:33 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:33 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:33 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011346 2026-10-09 02:18:33 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:33 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:33 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:18:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:34 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:34 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:34 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:34 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:34 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:32.738874 End time: 2026-10-09 02:18:34.171824 2026-10-09 02:18:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:34 INFO tclean::::casa ########################################## 2026-10-09 02:18:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:34 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:34 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:34 2026****** 2026-10-09 02:18:34 INFO ImageFitter::fit+ 2026-10-09 02:18:34 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:34 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:34 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:34 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:34 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:34 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:34 INFO imstat::::casa ########################################## 2026-10-09 02:18:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:34 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:34 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:34 INFO imstat:::: Values --- 2026-10-09 02:18:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:34 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:34 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-10-09 02:18:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:18:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 02:18:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:34 INFO imstat:::: Statistics --- 2026-10-09 02:18:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-10-09 02:18:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-10-09 02:18:34 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-10-09 02:18:34 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-10-09 02:18:34 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-10-09 02:18:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:34 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777732e-05 4.999996e+00 2026-10-09 02:18:34 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:34.219650 End time: 2026-10-09 02:18:34.242474 2026-10-09 02:18:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:34 INFO imstat::::casa ########################################## 2026-10-09 02:18:34 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:34 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 02:39:52.3901' ) 2026-10-09 02:18:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:34 INFO MSTransformManager::open Select data 2026-10-09 02:18:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 02:18:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 02:39:52.3901' successfully parsed 2026-10-09 02:18:34 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:34.256373 End time: 2026-10-09 02:18:34.695827 2026-10-09 02:18:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:35 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:35 INFO tclean::::casa ########################################## 2026-10-09 02:18:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:35 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:35 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010247 2026-10-09 02:18:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:18:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:36 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:37 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:34.724649 End time: 2026-10-09 02:18:36.526767 2026-10-09 02:18:37 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:37 INFO tclean::::casa ########################################## 2026-10-09 02:18:37 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:37 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:37 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:37 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:37 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:37 2026****** 2026-10-09 02:18:37 INFO ImageFitter::fit+ 2026-10-09 02:18:37 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:37 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:37 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:37 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:37 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:37 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:37 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:37 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:37 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:37 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:37 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:37 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- ra: 128.000008 +/- 0.000127 pixels 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:37 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:37 INFO imstat::::casa ########################################## 2026-10-09 02:18:37 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:37 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:37 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:37 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:37 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:37 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:37 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:37 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-09 02:18:37 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:37 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 02:18:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 02:18:37 INFO imstat:::: Values --- 2026-10-09 02:18:37 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:37 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:37 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:37 INFO imstat:::: -- minimum value [min]: -7.78143e-05 Jy/beam 2026-10-09 02:18:37 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:37 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:37 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:37 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:37 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:37 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:37 INFO imstat:::: Statistics --- 2026-10-09 02:18:37 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:37 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:37 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:37 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:37 INFO imstat:::: -- Median of the pixel values [median]: -1.86838e-05 Jy/beam 2026-10-09 02:18:37 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73769e-05 Jy/beam 2026-10-09 02:18:37 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-10-09 02:18:37 INFO imstat:::: -- First quartile [q1]: -3.45216e-05 Jy/beam 2026-10-09 02:18:37 INFO imstat:::: -- Third quartile [q3]: 1.1124e-06 Jy/beam 2026-10-09 02:18:37 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:37 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:37 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:37 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:37 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:37 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:37 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.781426e-05 4.999996e+00 2026-10-09 02:18:37 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:36.585643 End time: 2026-10-09 02:18:36.612898 2026-10-09 02:18:37 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:37 INFO imstat::::casa ########################################## 2026-10-09 02:18:37 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:37 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39.968292000deg' ) 2026-10-09 02:18:37 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:37 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:37 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:37 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:37 INFO MSTransformManager::open Select data 2026-10-09 02:18:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:37 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:37 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39.968292000deg' successfully parsed 2026-10-09 02:18:37 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:36.624862 End time: 2026-10-09 02:18:37.048250 2026-10-09 02:18:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:37 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:37 INFO tclean::::casa ########################################## 2026-10-09 02:18:37 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:37 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:37 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:37 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:37 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:37 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:37 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:37 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:37 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.01056 2026-10-09 02:18:37 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:37 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:18:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:38 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:38 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:38 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:38 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:38 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:39 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:37.066240 End time: 2026-10-09 02:18:38.586119 2026-10-09 02:18:39 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:39 INFO tclean::::casa ########################################## 2026-10-09 02:18:39 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:39 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:39 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:39 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:39 2026****** 2026-10-09 02:18:39 INFO ImageFitter::fit+ 2026-10-09 02:18:39 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:39 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:39 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:39 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:39 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:39 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:39 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:39 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:39 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:39 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:39 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:39 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:39 INFO imstat::::casa ########################################## 2026-10-09 02:18:39 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:39 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:39 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:39 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:39 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:39 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:39 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:39 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:39 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:39 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:39 INFO imstat:::: Values --- 2026-10-09 02:18:39 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:39 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:39 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:39 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-10-09 02:18:39 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:39 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 02:18:39 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:39 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 02:18:39 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:39 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:39 INFO imstat:::: Statistics --- 2026-10-09 02:18:39 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:39 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:39 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:39 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:39 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-10-09 02:18:39 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-10-09 02:18:39 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-10-09 02:18:39 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-10-09 02:18:39 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-10-09 02:18:39 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:39 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:39 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:39 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:39 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:39 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:39 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777732e-05 4.999996e+00 2026-10-09 02:18:39 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:38.656959 End time: 2026-10-09 02:18:38.683953 2026-10-09 02:18:39 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:39 INFO imstat::::casa ########################################## 2026-10-09 02:18:39 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:39 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:39 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 0.697578292rad' ) 2026-10-09 02:18:39 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:39 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:39 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:39 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:39 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:39 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:39 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:39 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:39 INFO MSTransformManager::open Select data 2026-10-09 02:18:39 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 0.697578292rad' successfully parsed 2026-10-09 02:18:39 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:38.698940 End time: 2026-10-09 02:18:39.043232 2026-10-09 02:18:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:39 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:39 INFO tclean::::casa ########################################## 2026-10-09 02:18:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:39 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:39 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:39 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:39 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:39 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:39 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:39 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:39 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:39 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:39 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:39 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02398 2026-10-09 02:18:39 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:39 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:40 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:18:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:40 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:40 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:40 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:40 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:39.061831 End time: 2026-10-09 02:18:40.421212 2026-10-09 02:18:40 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:40 INFO tclean::::casa ########################################## 2026-10-09 02:18:40 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:40 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:40 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:40 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:40 2026****** 2026-10-09 02:18:40 INFO ImageFitter::fit+ 2026-10-09 02:18:40 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:40 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:40 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:40 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:40 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:40 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:40 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:40 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:40 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:40 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:40 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:40 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:40 INFO imstat::::casa ########################################## 2026-10-09 02:18:40 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:40 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:40 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:40 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:40 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:40 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:40 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:40 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:40 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:40 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:40 INFO imstat:::: Values --- 2026-10-09 02:18:40 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:40 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:40 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:40 INFO imstat:::: -- minimum value [min]: -7.7781e-05 Jy/beam 2026-10-09 02:18:40 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:40 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:40 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:40 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:40 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:40 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:40 INFO imstat:::: Statistics --- 2026-10-09 02:18:40 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:40 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:40 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:40 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:40 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-10-09 02:18:40 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73593e-05 Jy/beam 2026-10-09 02:18:40 INFO imstat:::: -- IQR [quartile]: 3.56161e-05 Jy/beam 2026-10-09 02:18:40 INFO imstat:::: -- First quartile [q1]: -3.45125e-05 Jy/beam 2026-10-09 02:18:40 INFO imstat:::: -- Third quartile [q3]: 1.10364e-06 Jy/beam 2026-10-09 02:18:40 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:40 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:40 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:40 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:40 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:40 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:40 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778104e-05 4.999996e+00 2026-10-09 02:18:40 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:40.463873 End time: 2026-10-09 02:18:40.483686 2026-10-09 02:18:40 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:40 INFO imstat::::casa ########################################## 2026-10-09 02:18:40 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:40 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39d58m05.8512' ) 2026-10-09 02:18:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:41 INFO MSTransformManager::open Select data 2026-10-09 02:18:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:41 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:41 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39d58m05.8512' successfully parsed 2026-10-09 02:18:41 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:41 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:41 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:40.495429 End time: 2026-10-09 02:18:40.897551 2026-10-09 02:18:41 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:41 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:41 INFO tclean::::casa ########################################## 2026-10-09 02:18:41 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:41 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 ) 2026-10-09 02:18:41 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:41 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:41 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:41 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:41 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:41 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:41 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:41 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:41 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:41 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:41 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.014008 2026-10-09 02:18:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:18:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:42 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:42 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:42 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:42 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:42 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:40.928780 End time: 2026-10-09 02:18:42.401346 2026-10-09 02:18:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:42 INFO tclean::::casa ########################################## 2026-10-09 02:18:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:42 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:42 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:42 2026****** 2026-10-09 02:18:42 INFO ImageFitter::fit+ 2026-10-09 02:18:42 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:42 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:42 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:42 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:42 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:42 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:42 INFO imstat::::casa ########################################## 2026-10-09 02:18:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:42 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:42 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:42 INFO imstat:::: Values --- 2026-10-09 02:18:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:42 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:42 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-09 02:18:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:42 INFO imstat:::: Statistics --- 2026-10-09 02:18:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-09 02:18:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-09 02:18:42 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-09 02:18:42 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-09 02:18:42 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-09 02:18:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:42 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-10-09 02:18:42 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:42.442171 End time: 2026-10-09 02:18:42.461787 2026-10-09 02:18:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:42 INFO imstat::::casa ########################################## 2026-10-09 02:18:42 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:42 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 298.023551625deg 02:39:52.3901' ) 2026-10-09 02:18:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:42 INFO MSTransformManager::open Select data 2026-10-09 02:18:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:43 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 02:18:43 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 02:39:52.3901' successfully parsed 2026-10-09 02:18:43 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:42.473999 End time: 2026-10-09 02:18:42.824058 2026-10-09 02:18:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:43 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:43 INFO tclean::::casa ########################################## 2026-10-09 02:18:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:43 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:43 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:43 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:43 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:43 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010451 2026-10-09 02:18:43 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:43 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:43 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:18:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:44 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:44 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:44 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:44 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:44 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:44 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:42.841901 End time: 2026-10-09 02:18:44.081986 2026-10-09 02:18:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:44 INFO tclean::::casa ########################################## 2026-10-09 02:18:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:44 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) 2026-10-09 02:18:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:44 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:44 2026****** 2026-10-09 02:18:44 INFO ImageFitter::fit+ 2026-10-09 02:18:44 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:44 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:44 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:44 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:44 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:44 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) 2026-10-09 02:18:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:44 INFO imstat::::casa ########################################## 2026-10-09 02:18:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:44 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 ) 2026-10-09 02:18:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:44 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-09 02:18:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 02:18:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 02:18:44 INFO imstat:::: Values --- 2026-10-09 02:18:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:44 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:44 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-10-09 02:18:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:44 INFO imstat:::: Statistics --- 2026-10-09 02:18:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-10-09 02:18:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-10-09 02:18:44 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-10-09 02:18:44 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-10-09 02:18:44 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-10-09 02:18:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:44 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.782251e-05 4.999996e+00 2026-10-09 02:18:44 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:44.145272 End time: 2026-10-09 02:18:44.168784 2026-10-09 02:18:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:44 INFO imstat::::casa ########################################## 2026-10-09 02:18:44 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:44 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39.968292000deg' ) 2026-10-09 02:18:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:44 INFO MSTransformManager::open Select data 2026-10-09 02:18:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39.968292000deg' successfully parsed 2026-10-09 02:18:44 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:44.180794 End time: 2026-10-09 02:18:44.561847 2026-10-09 02:18:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:45 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:45 INFO tclean::::casa ########################################## 2026-10-09 02:18:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:45 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:45 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:45 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:45 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010481 2026-10-09 02:18:45 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:45 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:18:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:46 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:46 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:46 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:44.580519 End time: 2026-10-09 02:18:45.768799 2026-10-09 02:18:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:46 INFO tclean::::casa ########################################## 2026-10-09 02:18:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:46 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:46 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:46 2026****** 2026-10-09 02:18:46 INFO ImageFitter::fit+ 2026-10-09 02:18:46 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:46 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:46 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:46 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:46 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:46 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:46 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:46 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:46 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:46 INFO imstat::::casa ########################################## 2026-10-09 02:18:46 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:46 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:46 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:46 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:46 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:46 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:46 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:46 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:46 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:46 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:46 INFO imstat:::: Values --- 2026-10-09 02:18:46 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:46 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:46 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:46 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-09 02:18:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:46 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:46 INFO imstat:::: Statistics --- 2026-10-09 02:18:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:46 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:46 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:46 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-09 02:18:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-09 02:18:46 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-09 02:18:46 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-09 02:18:46 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-09 02:18:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:46 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-10-09 02:18:46 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:45.810486 End time: 2026-10-09 02:18:45.830258 2026-10-09 02:18:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:46 INFO imstat::::casa ########################################## 2026-10-09 02:18:46 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:46 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 0.697578292rad' ) 2026-10-09 02:18:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:46 INFO MSTransformManager::open Select data 2026-10-09 02:18:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:46 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:46 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 0.697578292rad' successfully parsed 2026-10-09 02:18:46 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:45.842492 End time: 2026-10-09 02:18:46.201202 2026-10-09 02:18:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:46 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:46 INFO tclean::::casa ########################################## 2026-10-09 02:18:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:46 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:46 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.013215 2026-10-09 02:18:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:47 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:18:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:47 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:48 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:46.219668 End time: 2026-10-09 02:18:47.534805 2026-10-09 02:18:48 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:48 INFO tclean::::casa ########################################## 2026-10-09 02:18:48 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:48 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:48 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:48 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:48 2026****** 2026-10-09 02:18:48 INFO ImageFitter::fit+ 2026-10-09 02:18:48 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:48 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:48 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:48 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:48 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:48 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:48 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:48 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:48 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:48 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:48 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:48 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:48 INFO imstat::::casa ########################################## 2026-10-09 02:18:48 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:48 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:48 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:48 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:48 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:48 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:48 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:48 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:48 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:48 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:48 INFO imstat:::: Values --- 2026-10-09 02:18:48 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:48 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:48 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:48 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-10-09 02:18:48 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:48 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:48 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:48 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:48 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:48 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:48 INFO imstat:::: Statistics --- 2026-10-09 02:18:48 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:48 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:48 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:48 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:48 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-10-09 02:18:48 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-10-09 02:18:48 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-10-09 02:18:48 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-10-09 02:18:48 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-10-09 02:18:48 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:48 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:48 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:48 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:48 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:48 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:48 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778897e-05 4.999996e+00 2026-10-09 02:18:48 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:47.577120 End time: 2026-10-09 02:18:47.596582 2026-10-09 02:18:48 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:48 INFO imstat::::casa ########################################## 2026-10-09 02:18:48 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:48 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:48 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39d58m05.8512' ) 2026-10-09 02:18:48 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:48 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:48 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:48 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:48 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:48 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:48 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:48 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:48 INFO MSTransformManager::open Select data 2026-10-09 02:18:48 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39d58m05.8512' successfully parsed 2026-10-09 02:18:48 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:47.608744 End time: 2026-10-09 02:18:48.019065 2026-10-09 02:18:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:48 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:48 INFO tclean::::casa ########################################## 2026-10-09 02:18:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:48 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:48 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:48 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:48 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011139 2026-10-09 02:18:48 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:18:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:49 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:49 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:49 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:49 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:48.037740 End time: 2026-10-09 02:18:49.261714 2026-10-09 02:18:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:49 INFO tclean::::casa ########################################## 2026-10-09 02:18:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:49 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:49 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:49 2026****** 2026-10-09 02:18:49 INFO ImageFitter::fit+ 2026-10-09 02:18:49 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:49 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:49 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:49 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:49 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:49 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:49 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:49 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:49 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:49 INFO imstat::::casa ########################################## 2026-10-09 02:18:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:49 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:49 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:49 INFO imstat:::: Values --- 2026-10-09 02:18:49 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:49 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:49 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-10-09 02:18:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:49 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:49 INFO imstat:::: Statistics --- 2026-10-09 02:18:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:49 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:49 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:49 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-10-09 02:18:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-10-09 02:18:49 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-10-09 02:18:49 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-10-09 02:18:49 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-10-09 02:18:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:49 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778534e-05 4.999996e+00 2026-10-09 02:18:49 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:49.302976 End time: 2026-10-09 02:18:49.323183 2026-10-09 02:18:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:49 INFO imstat::::casa ########################################## 2026-10-09 02:18:49 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:49 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 02:39:52.3901' ) 2026-10-09 02:18:49 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:49 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:49 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:49 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:49 INFO MSTransformManager::open Select data 2026-10-09 02:18:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 02:18:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 02:39:52.3901' successfully parsed 2026-10-09 02:18:50 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:49.335555 End time: 2026-10-09 02:18:49.696759 2026-10-09 02:18:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:50 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:50 INFO tclean::::casa ########################################## 2026-10-09 02:18:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:50 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 ) 2026-10-09 02:18:50 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:50 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:50 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:50 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:50 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:50 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:50 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:50 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:50 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:50 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.01041 2026-10-09 02:18:50 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:50 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 02:18:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:51 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:51 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:51 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:51 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:51 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:51 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:49.714873 End time: 2026-10-09 02:18:50.980875 2026-10-09 02:18:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:51 INFO tclean::::casa ########################################## 2026-10-09 02:18:51 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:51 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:51 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:51 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:51 2026****** 2026-10-09 02:18:51 INFO ImageFitter::fit+ 2026-10-09 02:18:51 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:51 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:51 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:51 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:51 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:51 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:51 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:51 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:51 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:51 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:51 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116885 Jy 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126501 Jy 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:51 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:51 INFO imstat::::casa ########################################## 2026-10-09 02:18:51 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:51 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:51 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:51 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:51 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:51 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:51 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:51 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-09 02:18:51 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:51 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 02:18:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 02:18:51 INFO imstat:::: Values --- 2026-10-09 02:18:51 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:51 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:51 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:51 INFO imstat:::: -- minimum value [min]: -7.78268e-05 Jy/beam 2026-10-09 02:18:51 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:51 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:51 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:51 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:51 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:51 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:51 INFO imstat:::: Statistics --- 2026-10-09 02:18:51 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:51 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:51 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:51 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:51 INFO imstat:::: -- Median of the pixel values [median]: -1.8675e-05 Jy/beam 2026-10-09 02:18:51 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73782e-05 Jy/beam 2026-10-09 02:18:51 INFO imstat:::: -- IQR [quartile]: 3.56598e-05 Jy/beam 2026-10-09 02:18:51 INFO imstat:::: -- First quartile [q1]: -3.45364e-05 Jy/beam 2026-10-09 02:18:51 INFO imstat:::: -- Third quartile [q3]: 1.12335e-06 Jy/beam 2026-10-09 02:18:51 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:51 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:51 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:51 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:51 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:51 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:51 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.782676e-05 4.999996e+00 2026-10-09 02:18:51 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:51.039160 End time: 2026-10-09 02:18:51.062500 2026-10-09 02:18:51 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:51 INFO imstat::::casa ########################################## 2026-10-09 02:18:51 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:51 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 5.201492224rad 39.968292000deg' ) 2026-10-09 02:18:51 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:51 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:51 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:51 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:51 INFO MSTransformManager::open Select data 2026-10-09 02:18:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:51 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:51 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39.968292000deg' successfully parsed 2026-10-09 02:18:51 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:51.076471 End time: 2026-10-09 02:18:51.488604 2026-10-09 02:18:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:51 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:52 INFO tclean::::casa ########################################## 2026-10-09 02:18:52 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:52 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:52 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:52 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:52 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:52 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:52 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:52 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:52 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:52 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:52 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:52 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:52 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:52 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.018669 2026-10-09 02:18:52 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:52 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:52 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:18:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:53 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:53 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:53 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:53 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:53 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:53 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:51.506751 End time: 2026-10-09 02:18:52.892583 2026-10-09 02:18:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:53 INFO tclean::::casa ########################################## 2026-10-09 02:18:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:53 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:53 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:53 2026****** 2026-10-09 02:18:53 INFO ImageFitter::fit+ 2026-10-09 02:18:53 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:53 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:53 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:53 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:53 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:53 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:53 INFO imstat::::casa ########################################## 2026-10-09 02:18:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:53 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:53 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 02:18:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:53 INFO imstat:::: Values --- 2026-10-09 02:18:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:53 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:53 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-10-09 02:18:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:53 INFO imstat:::: Statistics --- 2026-10-09 02:18:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:53 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-10-09 02:18:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-10-09 02:18:53 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-10-09 02:18:53 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-10-09 02:18:53 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-10-09 02:18:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:53 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778534e-05 4.999996e+00 2026-10-09 02:18:53 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:52.936855 End time: 2026-10-09 02:18:52.955803 2026-10-09 02:18:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:53 INFO imstat::::casa ########################################## 2026-10-09 02:18:53 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 02:18:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 0.697578292rad' ) 2026-10-09 02:18:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 02:18:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 02:18:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 02:18:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 02:18:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 02:18:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 02:18:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 02:18:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 02:18:53 INFO MSTransformManager::open Select data 2026-10-09 02:18:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 02:18:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 02:18:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 0.697578292rad' successfully parsed 2026-10-09 02:18:53 INFO phaseshift::::casa Shift phase center 2026-10-09 02:18:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 02:18:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 02:18:52.967529 End time: 2026-10-09 02:18:53.340674 2026-10-09 02:18:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 02:18:53 INFO phaseshift::::casa ########################################## 2026-10-09 02:18:53 INFO tclean::::casa ########################################## 2026-10-09 02:18:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 02:18:53 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 02:18:53 INFO tclean::::casa Verifying Input Parameters 2026-10-09 02:18:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 02:18:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 02:18:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 02:18:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 02:18:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 02:18:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 02:18:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 02:18:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 02:18:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 02:18:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 02:18:54 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 02:18:54 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010513 2026-10-09 02:18:54 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:54 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 02:18:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 02:18:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 02:18:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 02:18:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 02:18:54 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 02:18:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 02:18:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 02:18:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 02:18:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 02:18:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 02:18:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 02:18:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 02:18:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 02:18:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 02:18:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 02:18:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 02:18:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 02:18:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 02:18:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 02:18:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 02:18:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 02:18:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 02:18:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 02:18:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 02:18:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 02:18:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 02:18:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 02:18:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 02:18:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 02:18:55 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 02:18:55 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-09 02:18:55 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 02:18:53.358204 End time: 2026-10-09 02:18:54.630237 2026-10-09 02:18:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 02:18:55 INFO tclean::::casa ########################################## 2026-10-09 02:18:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 02:18:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:55 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 02:18:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 02:18:55 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 02:18:55 2026****** 2026-10-09 02:18:55 INFO ImageFitter::fit+ 2026-10-09 02:18:55 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 02:18:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 02:18:55 INFO ImageFitter::fit+ --- region: 2026-10-09 02:18:55 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 02:18:55 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 02:18:55 INFO ImageFitter::fit+ --- mask: 2026-10-09 02:18:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 02:18:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 02:18:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 02:18:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:55 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 02:18:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 02:18:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 02:18:55 INFO imstat::::casa ########################################## 2026-10-09 02:18:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 02:18:55 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 02:18:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 02:18:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 02:18:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 02:18:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 02:18:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 02:18:55 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) 2026-10-09 02:18:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 02:18:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 02:18:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 02:18:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 02:18:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 02:18:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 02:18:55 INFO imstat:::: Values --- 2026-10-09 02:18:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 02:18:55 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 02:18:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 02:18:55 INFO imstat:::: -- minimum value [min]: -7.77956e-05 Jy/beam 2026-10-09 02:18:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 02:18:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 02:18:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 02:18:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 02:18:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 02:18:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 02:18:55 INFO imstat:::: Statistics --- 2026-10-09 02:18:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 02:18:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 02:18:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 02:18:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 02:18:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86648e-05 Jy/beam 2026-10-09 02:18:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73536e-05 Jy/beam 2026-10-09 02:18:55 INFO imstat:::: -- IQR [quartile]: 3.5639e-05 Jy/beam 2026-10-09 02:18:55 INFO imstat:::: -- First quartile [q1]: -3.45152e-05 Jy/beam 2026-10-09 02:18:55 INFO imstat:::: -- Third quartile [q3]: 1.12373e-06 Jy/beam 2026-10-09 02:18:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 02:18:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 02:18:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 02:18:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 02:18:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 02:18:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 02:18:55 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.779562e-05 4.999996e+00 2026-10-09 02:18:55 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 02:18:54.670799 End time: 2026-10-09 02:18:54.690240 2026-10-09 02:18:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 02:18:55 INFO imstat::::casa ########################################## . ---------------------------------------------------------------------- Ran 27 tests in 382.428s OK Generating XML reports...