2026-09-18 09:34:00 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-09-18 09:34:00 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.7-9-py3.12.el9/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-09-18 09:34:00 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-09-18 09:34:00 INFO ::casa 2026-09-18 09:34:00 INFO ::casa config values 2026-09-18 09:34:00 INFO ::casa agg = False 2026-09-18 09:34:00 INFO ::casa cachedir = '/home/casatest/.casa' 2026-09-18 09:34:00 INFO ::casa casaconfig_verbose = 1 2026-09-18 09:34:00 INFO ::casa colors = 'Neutral' 2026-09-18 09:34:00 INFO ::casa data_auto_update = False 2026-09-18 09:34:00 INFO ::casa data_update_interval = 1 2026-09-18 09:34:00 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-09-18 09:34:00 INFO ::casa iplog = False 2026-09-18 09:34:00 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_statwt_casashell/ipython-20260918-093355.log' 2026-09-18 09:34:00 INFO ::casa log2term = True 2026-09-18 09:34:00 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_statwt_casashell/casa-20260918-093355.log' 2026-09-18 09:34:00 INFO ::casa measures_auto_update = False 2026-09-18 09:34:00 INFO ::casa measures_site = ['https://www.astron.nl/iers/', 'https://go.nrao.edu/iers/'] 2026-09-18 09:34:00 INFO ::casa measures_site_interval = 2 2026-09-18 09:34:00 INFO ::casa measures_update_interval = 1 2026-09-18 09:34:00 INFO ::casa measurespath = '/opt/casa/data/master' 2026-09-18 09:34:00 INFO ::casa nogui = False 2026-09-18 09:34:00 INFO ::casa nologfile = False 2026-09-18 09:34:00 INFO ::casa nologger = True 2026-09-18 09:34:00 INFO ::casa pipeline = False 2026-09-18 09:34:00 INFO ::casa skipnetworkcheck = False 2026-09-18 09:34:00 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-09-18 09:34:00 INFO ::casa user_site = False 2026-09-18 09:34:00 INFO ::casa 2026-09-18 09:34:00 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-09-18 09:34:00 INFO ::casa measures version is unknown, this is probably a legacy version not installed by casaconfig 2026-09-18 09:34:00 INFO ::casa 2026-09-18 09:34:00 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-09-18 09:34:00 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/09/10/15:15, 2026/08/11/00:00:00 2026-09-18 09:34:00 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/09/10/15:15, 2026/08/11/00:00:00 2026-09-18 09:34:00 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/09/17/15:15, 2026/12/16/00:00:00 2026-09-18 09:34:00 INFO ::casa TAI_UTC (version date, last date in table (UTC)): 2026/09/03/15:15, 2017/01/01/00:00:00 Running tests... ---------------------------------------------------------------------- Using user configuration file /home/casatest/.casa/config.py No event loop hook running. Using matplotlib backend: agg CASA 6.7.7.9 -- Common Astronomy Software Applications [6.7.7.9] 2026-09-18 09:34:01 INFO statwt::::casa ########################################## 2026-09-18 09:34:01 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:01 INFO statwt::::casa statwt( vis='ngc5921.split.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='0:0~9;21~62', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:01 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:01 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:01 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:01 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:01 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:02 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:02 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:02 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:02 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:02 INFO StatWtTVI::summarizeFlagging 0 5399 3913 2026-09-18 09:34:02 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-09-18 09:34:02 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.25577 2026-09-18 09:34:02 INFO StatWtTVI::summarizeStats The variance of the computed weights is 5.88042 2026-09-18 09:34:02 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:02 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:00.833264 End time: 2026-09-18 09:34:01.928642 2026-09-18 09:34:02 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:02 INFO statwt::::casa ########################################## 2026-09-18 09:34:02 INFO statwt::::casa ########################################## 2026-09-18 09:34:02 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:02 INFO statwt::::casa statwt( vis='ngc5921.split.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:02 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:02 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:02 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-18 09:34:02 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:02 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:03 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:03 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:03 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:03 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:03 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-18 09:34:03 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:03 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-18 09:34:03 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-18 09:34:03 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:03 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:02.310256 End time: 2026-09-18 09:34:02.906940 2026-09-18 09:34:03 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:03 INFO statwt::::casa ########################################## 2026-09-18 09:34:03 INFO statwt::::casa ########################################## 2026-09-18 09:34:03 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:03 INFO statwt::::casa statwt( vis='ngc5921.split.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='0:10~20', excludechans=True, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:03 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:03 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:03 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-09-18 09:34:03 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:03 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:04 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:04 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:04 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:04 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:04 INFO StatWtTVI::summarizeFlagging 0 5399 3913 2026-09-18 09:34:04 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-09-18 09:34:04 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.25577 2026-09-18 09:34:04 INFO StatWtTVI::summarizeStats The variance of the computed weights is 5.88042 2026-09-18 09:34:04 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:04 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:03.239730 End time: 2026-09-18 09:34:04.018246 2026-09-18 09:34:04 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:04 INFO statwt::::casa ########################################## 2026-09-18 09:34:04 INFO statwt::::casa ########################################## 2026-09-18 09:34:04 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:04 INFO statwt::::casa statwt( vis='ngc5921.split.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='0:0~9;21~62', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:04 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:04 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:04 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_4 2026-09-18 09:34:04 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:04 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:05 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:05 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:05 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:05 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:05 INFO StatWtTVI::summarizeFlagging 0 2700 1831 2026-09-18 09:34:05 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-09-18 09:34:05 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.60577 2026-09-18 09:34:05 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.70016 2026-09-18 09:34:05 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:05 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:04.199842 End time: 2026-09-18 09:34:04.676269 2026-09-18 09:34:05 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:05 INFO statwt::::casa ########################################## 2026-09-18 09:34:05 INFO statwt::::casa ########################################## 2026-09-18 09:34:05 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:05 INFO statwt::::casa statwt( vis='ngc5921.split.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:05 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:05 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:05 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_5 2026-09-18 09:34:05 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:05 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:05 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:05 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:05 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:05 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:05 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-09-18 09:34:05 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:05 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-09-18 09:34:05 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-09-18 09:34:05 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:06 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:05.067793 End time: 2026-09-18 09:34:05.885724 2026-09-18 09:34:06 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:06 INFO statwt::::casa ########################################## 2026-09-18 09:34:06 INFO statwt::::casa ########################################## 2026-09-18 09:34:06 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:06 INFO statwt::::casa statwt( vis='ngc5921.split.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='0:10~20', excludechans=True, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:06 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:06 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:06 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_6 2026-09-18 09:34:07 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:07 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:07 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:07 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:07 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:07 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:07 INFO StatWtTVI::summarizeFlagging 0 2700 1831 2026-09-18 09:34:07 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-09-18 09:34:07 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.60577 2026-09-18 09:34:07 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.70016 2026-09-18 09:34:07 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:07 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:06.215158 End time: 2026-09-18 09:34:07.182740 2026-09-18 09:34:07 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:07 INFO statwt::::casa ########################################## 2026-09-18 09:34:07 INFO name:: No table opened. 2026-09-18 09:34:07 INFO name:: No table opened. .2026-09-18 09:34:07 INFO statwt::::casa ########################################## 2026-09-18 09:34:07 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:07 INFO statwt::::casa statwt( vis='ngc5921.split.chanbin_0.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='195.312kHz', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:07 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:07 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:07 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:08 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:08 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:09 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:09 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:09 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:09 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:09 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-09-18 09:34:09 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:09 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-09-18 09:34:09 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-09-18 09:34:09 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:09 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:07.356326 End time: 2026-09-18 09:34:08.779624 2026-09-18 09:34:09 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:09 INFO statwt::::casa ########################################## 2026-09-18 09:34:09 INFO statwt::::casa ########################################## 2026-09-18 09:34:09 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:09 INFO statwt::::casa statwt( vis='ngc5921.split.chanbin_0.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin=8, minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:09 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:09 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:09 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-18 09:34:09 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:09 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:10 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:10 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:10 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:10 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:10 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-09-18 09:34:10 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:10 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-09-18 09:34:10 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-09-18 09:34:10 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:10 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:08.852650 End time: 2026-09-18 09:34:10.257511 2026-09-18 09:34:10 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:10 INFO statwt::::casa ########################################## 2026-09-18 09:34:10 INFO statwt::::casa ########################################## 2026-09-18 09:34:10 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:10 INFO statwt::::casa statwt( vis='ngc5921.split.chanbin_0.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='195.312kHz', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:10 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:10 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:10 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-09-18 09:34:10 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:10 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-18 09:34:10 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-18 09:34:11 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:12 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:12 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:12 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:12 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:12 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-09-18 09:34:12 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:12 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-09-18 09:34:12 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-09-18 09:34:12 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:12 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:10.371773 End time: 2026-09-18 09:34:11.870544 2026-09-18 09:34:12 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:12 INFO statwt::::casa ########################################## 2026-09-18 09:34:12 INFO statwt::::casa ########################################## 2026-09-18 09:34:12 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:12 INFO statwt::::casa statwt( vis='ngc5921.split.chanbin_0.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin=8, minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:12 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:12 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:12 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_4 2026-09-18 09:34:12 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:12 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-18 09:34:12 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-18 09:34:12 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:13 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:13 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:13 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:13 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:13 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-09-18 09:34:13 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:13 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-09-18 09:34:13 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-09-18 09:34:13 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:13 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:11.971773 End time: 2026-09-18 09:34:13.462358 2026-09-18 09:34:13 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:13 INFO statwt::::casa ########################################## 2026-09-18 09:34:14 INFO statwt::::casa ########################################## 2026-09-18 09:34:14 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:14 INFO statwt::::casa statwt( vis='ngc5921.split.chanbin_0.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin=1, slidetimebin=False, chanbin='195.312kHz', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:14 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:14 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:14 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_5 2026-09-18 09:34:14 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:14 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:14 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:14 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:14 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:14 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:14 INFO StatWtTVI::summarizeFlagging 0 21600 11131 2026-09-18 09:34:14 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:14 INFO StatWtTVI::summarizeStats The mean of the computed weights is 14.0517 2026-09-18 09:34:14 INFO StatWtTVI::summarizeStats The variance of the computed weights is 92.3814 2026-09-18 09:34:14 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:14 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:13.534952 End time: 2026-09-18 09:34:14.480248 2026-09-18 09:34:14 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:14 INFO statwt::::casa ########################################## 2026-09-18 09:34:15 INFO statwt::::casa ########################################## 2026-09-18 09:34:15 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:15 INFO statwt::::casa statwt( vis='ngc5921.split.chanbin_0.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin=1, slidetimebin=False, chanbin=8, minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:15 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:15 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:15 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_6 2026-09-18 09:34:15 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:15 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:15 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:15 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:15 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:15 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:15 INFO StatWtTVI::summarizeFlagging 0 21600 11131 2026-09-18 09:34:15 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:15 INFO StatWtTVI::summarizeStats The mean of the computed weights is 14.0517 2026-09-18 09:34:15 INFO StatWtTVI::summarizeStats The variance of the computed weights is 92.3814 2026-09-18 09:34:15 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:16 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:14.560419 End time: 2026-09-18 09:34:15.537811 2026-09-18 09:34:16 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:16 INFO statwt::::casa ########################################## 2026-09-18 09:34:16 INFO statwt::::casa ########################################## 2026-09-18 09:34:16 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:16 INFO statwt::::casa statwt( vis='ngc5921.split.chanbin_0.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin=1, slidetimebin=False, chanbin=8, minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:16 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:16 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:16 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_7 2026-09-18 09:34:16 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:16 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-18 09:34:16 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-18 09:34:16 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:17 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:17 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:17 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:17 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:17 INFO StatWtTVI::summarizeFlagging 0 21600 11131 2026-09-18 09:34:17 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:17 INFO StatWtTVI::summarizeStats The mean of the computed weights is 14.0517 2026-09-18 09:34:17 INFO StatWtTVI::summarizeStats The variance of the computed weights is 92.3814 2026-09-18 09:34:17 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:17 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:15.660760 End time: 2026-09-18 09:34:16.724995 2026-09-18 09:34:17 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:17 INFO statwt::::casa ########################################## 2026-09-18 09:34:17 INFO name:: No table opened. 2026-09-18 09:34:17 INFO name:: No table opened. .2026-09-18 09:34:18 INFO statwt::::casa ########################################## 2026-09-18 09:34:18 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:18 INFO statwt::::casa statwt( vis='statwt_test_vlass_spw_select_.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='scan,field,state', timebin='1yr', slidetimebin=False, chanbin=1, minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='residual_data' ) 2026-09-18 09:34:18 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:18 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:18 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:18 INFO StatWtColConfig::_determineFlags CORRECTED_DATA is not present. Updating the SIGMA/SIGMA_SPECTRUM and WEIGHT/WEIGHT_SPECTRUM values based on calculations using the DATA column. 2026-09-18 09:34:18 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-18 09:34:18 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-18 09:34:19 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-18 09:34:20 INFO StatWtTVI::summarizeFlagging Originally, 28.7129% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:20 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 28.7129% 2026-09-18 09:34:20 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:20 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:20 INFO StatWtTVI::summarizeFlagging 0 356 4 2026-09-18 09:34:20 INFO StatWtTVI::summarizeFlagging 1 288 18 2026-09-18 09:34:20 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15;SPW 1, channels 0~15 2026-09-18 09:34:20 INFO StatWtTVI::summarizeStats The mean of the computed weights is 34.8553 2026-09-18 09:34:20 INFO StatWtTVI::summarizeStats The variance of the computed weights is 104.361 2026-09-18 09:34:20 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:21 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:18.108308 End time: 2026-09-18 09:34:20.880838 2026-09-18 09:34:21 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:21 INFO statwt::::casa ########################################## 2026-09-18 09:34:21 INFO statwt::::casa ########################################## 2026-09-18 09:34:21 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:21 INFO statwt::::casa statwt( vis='statwt_test_vlass_spw_select_0.ms', selectdata=True, field='', spw='0', intent='', array='', observation='', scan='', combine='scan,field,state', timebin='1yr', slidetimebin=False, chanbin=1, minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='residual_data' ) 2026-09-18 09:34:21 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:21 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:21 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:22 INFO StatWtColConfig::_determineFlags CORRECTED_DATA is not present. Updating the SIGMA/SIGMA_SPECTRUM and WEIGHT/WEIGHT_SPECTRUM values based on calculations using the DATA column. 2026-09-18 09:34:22 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-18 09:34:22 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-18 09:34:22 SEVERE ms::statwt Exception Reported: Exception: The WEIGHT_SPECTRUM and/or SIGMA_SPECTRUM columnS did not exist in this MS but it/they has now been created and initialized. However, due to a known issue in the code, statwt cannot correctly construct and write back these columns for the subset of the MS specified by data selection. A work-around is to simply re-run statwt again (on the MS that now contains a properly initialized columns), specifying the same selection criteria. If you are using the tool method, first close the ms tool, then reopen it using the same data set, apply the same selection, and then run ms.statwt(). If you are using the task, simply rerunning it with the same inputs should be sufficient. 2026-09-18 09:34:22 SEVERE ms::statwt+ ... thrown by casac::record* casac::ms::statwt(const std::string&, const casac::variant&, bool, const casac::variant&, long int, const std::string&, double, const std::string&, bool, double, long int, const std::string&, bool, const std::vector >&, bool, const std::string&) at File: src/tools/ms/ms_cmpt.cc, line: 7328 2026-09-18 09:34:22 SEVERE statwt::::casa Exception Reported: Error in statwt: Exception: The WEIGHT_SPECTRUM and/or SIGMA_SPECTRUM columnS did not exist in this MS but it/they has now been created and initialized. However, due to a known issue in the code, statwt cannot correctly construct and write back these columns for the subset of the MS specified by data selection. A work-around is to simply re-run statwt again (on the MS that now contains a properly initialized columns), specifying the same selection criteria. If you are using the tool method, first close the ms tool, then reopen it using the same data set, apply the same selection, and then run ms.statwt(). If you are using the task, simply rerunning it with the same inputs should be sufficient. 2026-09-18 09:34:22 SEVERE statwt::::casa+ ... thrown by casac::record* casac::ms::statwt(const std::string&, const casac::variant&, bool, const casac::variant&, long int, const std::string&, double, const std::string&, bool, double, long int, const std::string&, bool, const std::vector >&, bool, const std::string&) at File: src/tools/ms/ms_cmpt.cc, line: 7328 2026-09-18 09:34:22 INFO statwt::::casa Traceback (most recent call last): 2026-09-18 09:34:22 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.7-9-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/statwt.py", line 993, in __call__ 2026-09-18 09:34:22 INFO statwt::::casa+ task_result = _statwt_t( _pc.document['vis'],_pc.document['selectdata'],_pc.document['field'],_pc.document['spw'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['scan'],_pc.document['combine'],_pc.document['timebin'],_pc.document['slidetimebin'],_pc.document['chanbin'],_pc.document['minsamp'],_pc.document['statalg'],_pc.document['fence'],_pc.document['center'],_pc.document['lside'],_pc.document['zscore'],_pc.document['maxiter'],_pc.document['fitspw'],_pc.document['excludechans'],_pc.document['wtrange'],_pc.document['flagbackup'],_pc.document['preview'],_pc.document['datacolumn'] ) 2026-09-18 09:34:22 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-18 09:34:22 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.7-9-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_statwt.py", line 56, in statwt 2026-09-18 09:34:22 INFO statwt::::casa+ rval = myms.statwt( 2026-09-18 09:34:22 INFO statwt::::casa+ ^^^^^^^^^^^^ 2026-09-18 09:34:22 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.7-9-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/ms.py", line 1235, in statwt 2026-09-18 09:34:22 INFO statwt::::casa+ return self._swigobj.statwt(combine, timebin, slidetimebin, chanbin, minsamp, statalg, fence, center, lside, zscore, maxiter, fitspw, excludechans, wtrange, preview, datacolumn) 2026-09-18 09:34:22 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-18 09:34:22 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.7-9-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/ms.py", line 2646, in statwt 2026-09-18 09:34:22 INFO statwt::::casa+ return _ms.ms_statwt(self, *args, **kwargs) 2026-09-18 09:34:22 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-18 09:34:22 INFO statwt::::casa+ RuntimeError: Exception: The WEIGHT_SPECTRUM and/or SIGMA_SPECTRUM columnS did not exist in this MS but it/they has now been created and initialized. However, due to a known issue in the code, statwt cannot correctly construct and write back these columns for the subset of the MS specified by data selection. A work-around is to simply re-run statwt again (on the MS that now contains a properly initialized columns), specifying the same selection criteria. If you are using the tool method, first close the ms tool, then reopen it using the same data set, apply the same selection, and then run ms.statwt(). If you are using the task, simply rerunning it with the same inputs should be sufficient. 2026-09-18 09:34:22 INFO statwt::::casa+ ... thrown by casac::record* casac::ms::statwt(const std::string&, const casac::variant&, bool, const casac::variant&, long int, const std::string&, double, const std::string&, bool, double, long int, const std::string&, bool, const std::vector >&, bool, const std::string&) at File: src/tools/ms/ms_cmpt.cc, line: 7328 2026-09-18 09:34:22 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:21.353558 End time: 2026-09-18 09:34:22.293234 2026-09-18 09:34:22 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:22 INFO statwt::::casa ########################################## 2026-09-18 09:34:22 INFO statwt::::casa ########################################## 2026-09-18 09:34:22 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:22 INFO statwt::::casa statwt( vis='statwt_test_vlass_spw_select_0.ms', selectdata=True, field='', spw='0', intent='', array='', observation='', scan='', combine='scan,field,state', timebin='1yr', slidetimebin=False, chanbin=1, minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='residual_data' ) 2026-09-18 09:34:22 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:22 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:22 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-18 09:34:23 INFO StatWtColConfig::_determineFlags CORRECTED_DATA is not present. Updating the SIGMA/SIGMA_SPECTRUM and WEIGHT/WEIGHT_SPECTRUM values based on calculations using the DATA column. 2026-09-18 09:34:23 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-18 09:34:23 INFO StatWtTVI::summarizeFlagging Originally, 15.3455% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:23 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 15.3455% 2026-09-18 09:34:23 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:23 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:23 INFO StatWtTVI::summarizeFlagging 0 356 4 2026-09-18 09:34:23 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15 2026-09-18 09:34:23 INFO StatWtTVI::summarizeStats The mean of the computed weights is 38.2032 2026-09-18 09:34:23 INFO StatWtTVI::summarizeStats The variance of the computed weights is 83.0845 2026-09-18 09:34:23 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:24 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:22.298804 End time: 2026-09-18 09:34:23.566091 2026-09-18 09:34:24 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:24 INFO statwt::::casa ########################################## 2026-09-18 09:34:24 INFO name:: No table opened. 2026-09-18 09:34:24 INFO name:: No table opened. .2026-09-18 09:34:24 INFO statwt::::casa ########################################## 2026-09-18 09:34:24 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:24 INFO statwt::::casa statwt( vis='ngc5921.split.data.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='data' ) 2026-09-18 09:34:24 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:24 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:24 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:24 INFO StatWtColConfig::_determineFlags CORRECTED_DATA is not present. Updating the SIGMA/SIGMA_SPECTRUM and WEIGHT/WEIGHT_SPECTRUM values based on calculations using the DATA column. 2026-09-18 09:34:24 INFO StatWtTVI::StatWtTVI Using DATA to compute weights 2026-09-18 09:34:24 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:24 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:24 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:24 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:24 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-09-18 09:34:24 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:24 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-09-18 09:34:24 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-09-18 09:34:24 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:24 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:23.755983 End time: 2026-09-18 09:34:24.482581 2026-09-18 09:34:24 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:24 INFO statwt::::casa ########################################## 2026-09-18 09:34:25 INFO name:: No table opened. 2026-09-18 09:34:25 INFO name:: No table opened. .2026-09-18 09:34:25 INFO statwt::::casa ########################################## 2026-09-18 09:34:25 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:25 INFO statwt::::casa statwt( vis='ngc5921.split.normalbounds.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin='6000s', slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:25 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:25 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:25 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:25 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:25 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:25 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:25 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:25 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:25 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:25 INFO StatWtTVI::summarizeFlagging 0 315 124 2026-09-18 09:34:25 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:25 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.46865 2026-09-18 09:34:25 INFO StatWtTVI::summarizeStats The variance of the computed weights is 0.933388 2026-09-18 09:34:25 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:25 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:24.890602 End time: 2026-09-18 09:34:25.410180 2026-09-18 09:34:25 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:25 INFO statwt::::casa ########################################## 2026-09-18 09:34:26 INFO statwt::::casa ########################################## 2026-09-18 09:34:26 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:26 INFO statwt::::casa statwt( vis='ngc5921.split.normalbounds.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr,field', timebin='6000s', slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:26 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:26 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:26 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-18 09:34:26 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:26 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:26 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:26 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:26 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:26 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:26 INFO StatWtTVI::summarizeFlagging 0 315 124 2026-09-18 09:34:26 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:26 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.46865 2026-09-18 09:34:26 INFO StatWtTVI::summarizeStats The variance of the computed weights is 0.933388 2026-09-18 09:34:26 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:26 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:25.672859 End time: 2026-09-18 09:34:26.295396 2026-09-18 09:34:26 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:26 INFO statwt::::casa ########################################## 2026-09-18 09:34:26 INFO name:: No table opened. 2026-09-18 09:34:26 INFO name:: No table opened. .2026-09-18 09:34:26 INFO statwt::::casa ########################################## 2026-09-18 09:34:26 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:26 INFO statwt::::casa statwt( vis='ngc5921.split.fieldsel.ms', selectdata=True, field='2', spw='', intent='', array='', observation='', scan='', combine='corr', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:26 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:26 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:26 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:27 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:27 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:27 INFO StatWtTVI::summarizeFlagging Originally, 18.1818% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:27 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.1818% 2026-09-18 09:34:27 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:27 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:27 INFO StatWtTVI::summarizeFlagging 0 1530 1019 2026-09-18 09:34:27 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:27 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.57858 2026-09-18 09:34:27 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.8497 2026-09-18 09:34:27 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:27 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:26.460970 End time: 2026-09-18 09:34:27.000973 2026-09-18 09:34:27 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:27 INFO statwt::::casa ########################################## 2026-09-18 09:34:28 INFO statwt::::casa ########################################## 2026-09-18 09:34:28 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:28 INFO statwt::::casa statwt( vis='ngc5921.split.fieldsel.ms', selectdata=True, field='N5921_2', spw='', intent='', array='', observation='', scan='', combine='corr', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:28 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:28 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:28 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-18 09:34:28 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:28 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:28 INFO StatWtTVI::summarizeFlagging Originally, 18.1818% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:28 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.1818% 2026-09-18 09:34:28 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:28 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:28 INFO StatWtTVI::summarizeFlagging 0 1530 1019 2026-09-18 09:34:28 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:28 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.57858 2026-09-18 09:34:28 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.8497 2026-09-18 09:34:28 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:28 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:27.511889 End time: 2026-09-18 09:34:27.939508 2026-09-18 09:34:28 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:28 INFO statwt::::casa ########################################## 2026-09-18 09:34:28 INFO name:: No table opened. 2026-09-18 09:34:28 INFO name:: No table opened. .2026-09-18 09:34:28 INFO statwt::::casa ########################################## 2026-09-18 09:34:28 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:28 INFO statwt::::casa statwt( vis='ngc5921.split.minsamp.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin=1, slidetimebin=False, chanbin='spw', minsamp=60, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:28 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:28 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:28 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:28 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:28 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:28 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:28 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:28 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:28 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:28 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-09-18 09:34:28 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:28 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-09-18 09:34:28 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-09-18 09:34:28 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:29 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:28.118036 End time: 2026-09-18 09:34:28.550343 2026-09-18 09:34:29 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:29 INFO statwt::::casa ########################################## 2026-09-18 09:34:29 INFO statwt::::casa ########################################## 2026-09-18 09:34:29 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:29 INFO statwt::::casa statwt( vis='ngc5921.split.minsamp.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin=1, slidetimebin=False, chanbin='spw', minsamp=80, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:29 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:29 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:29 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-18 09:34:29 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:29 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:29 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0.0151515%. 2026-09-18 09:34:29 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.2121% 2026-09-18 09:34:29 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:29 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:29 INFO StatWtTVI::summarizeFlagging 0 2699 1793 2026-09-18 09:34:29 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:29 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00706 2026-09-18 09:34:29 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.34301 2026-09-18 09:34:29 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:29 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:28.658531 End time: 2026-09-18 09:34:29.220154 2026-09-18 09:34:29 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:29 INFO statwt::::casa ########################################## 2026-09-18 09:34:29 INFO name:: No table opened. 2026-09-18 09:34:29 INFO name:: No table opened. .2026-09-18 09:34:29 INFO statwt::::casa ########################################## 2026-09-18 09:34:29 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:29 INFO statwt::::casa statwt( vis='statwt_test_vlass_timebin1.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='scan,field,state', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='residual_data' ) 2026-09-18 09:34:29 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:29 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:29 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:30 INFO StatWtColConfig::_determineFlags CORRECTED_DATA is not present. Updating the SIGMA/SIGMA_SPECTRUM and WEIGHT/WEIGHT_SPECTRUM values based on calculations using the DATA column. 2026-09-18 09:34:30 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-18 09:34:30 INFO StatWtTVI::summarizeFlagging Originally, 28.7129% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:30 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 28.7129% 2026-09-18 09:34:30 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:30 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:30 INFO StatWtTVI::summarizeFlagging 0 3936 1945 2026-09-18 09:34:30 INFO StatWtTVI::summarizeFlagging 1 3888 2344 2026-09-18 09:34:30 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15;SPW 1, channels 0~15 2026-09-18 09:34:30 INFO StatWtTVI::summarizeStats The mean of the computed weights is 40.6606 2026-09-18 09:34:30 INFO StatWtTVI::summarizeStats The variance of the computed weights is 372.347 2026-09-18 09:34:30 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:30 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:29.431193 End time: 2026-09-18 09:34:30.088003 2026-09-18 09:34:30 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:30 INFO statwt::::casa ########################################## 2026-09-18 09:34:30 INFO statwt::::casa ########################################## 2026-09-18 09:34:30 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:30 INFO statwt::::casa statwt( vis='statwt_test_vlass_timebin5s.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='scan,field,state', timebin='5s', slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='residual_data' ) 2026-09-18 09:34:30 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:30 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:30 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:31 INFO StatWtColConfig::_determineFlags CORRECTED_DATA is not present. Updating the SIGMA/SIGMA_SPECTRUM and WEIGHT/WEIGHT_SPECTRUM values based on calculations using the DATA column. 2026-09-18 09:34:31 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-18 09:34:31 INFO StatWtTVI::summarizeFlagging Originally, 28.7129% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:31 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 28.7129% 2026-09-18 09:34:31 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:31 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:31 INFO StatWtTVI::summarizeFlagging 0 360 13 2026-09-18 09:34:31 INFO StatWtTVI::summarizeFlagging 1 360 22 2026-09-18 09:34:31 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15;SPW 1, channels 0~15 2026-09-18 09:34:31 INFO StatWtTVI::summarizeStats The mean of the computed weights is 31.8048 2026-09-18 09:34:31 INFO StatWtTVI::summarizeStats The variance of the computed weights is 45.3775 2026-09-18 09:34:31 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:31 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:30.433021 End time: 2026-09-18 09:34:31.350918 2026-09-18 09:34:31 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:31 INFO statwt::::casa ########################################## 2026-09-18 09:34:32 INFO name:: No table opened. 2026-09-18 09:34:32 INFO name:: No table opened. .2026-09-18 09:34:32 INFO statwt::::casa ########################################## 2026-09-18 09:34:32 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:32 INFO statwt::::casa statwt( vis='ngc5921.no_scan_bounds.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr, scan', timebin='6000s', slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:32 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:32 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:32 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:32 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:32 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:32 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:32 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:32 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:32 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:32 INFO StatWtTVI::summarizeFlagging 0 270 89 2026-09-18 09:34:32 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:32 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.46103 2026-09-18 09:34:32 INFO StatWtTVI::summarizeStats The variance of the computed weights is 0.913911 2026-09-18 09:34:32 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:32 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:31.632908 End time: 2026-09-18 09:34:32.103863 2026-09-18 09:34:32 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:32 INFO statwt::::casa ########################################## 2026-09-18 09:34:32 INFO name:: No table opened. 2026-09-18 09:34:32 INFO name:: No table opened. .2026-09-18 09:34:32 INFO statwt::::casa ########################################## 2026-09-18 09:34:32 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:32 INFO statwt::::casa statwt( vis='ngc5921.no_scan_nor_field_bounds.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr,scan,field', timebin='6000s', slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:32 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:32 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:32 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:33 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:33 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:33 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:33 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:33 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:33 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:33 INFO StatWtTVI::summarizeFlagging 0 45 45 2026-09-18 09:34:33 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:33 INFO StatWtTVI::summarizeStats The mean of the computed weights is 0.0597345 2026-09-18 09:34:33 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.00596e-06 2026-09-18 09:34:33 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:33 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:32.394123 End time: 2026-09-18 09:34:32.996332 2026-09-18 09:34:33 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:33 INFO statwt::::casa ########################################## 2026-09-18 09:34:33 INFO statwt::::casa ########################################## 2026-09-18 09:34:33 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:33 INFO statwt::::casa statwt( vis='ngc5921.no_scan_nor_field_bounds.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr,field,scan', timebin='6000s', slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:33 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:33 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:33 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-18 09:34:33 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:33 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:34 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:34 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:34 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:34 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:34 INFO StatWtTVI::summarizeFlagging 0 45 45 2026-09-18 09:34:34 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:34 INFO StatWtTVI::summarizeStats The mean of the computed weights is 0.0597345 2026-09-18 09:34:34 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.00596e-06 2026-09-18 09:34:34 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:34 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:33.281415 End time: 2026-09-18 09:34:33.724496 2026-09-18 09:34:34 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:34 INFO statwt::::casa ########################################## 2026-09-18 09:34:34 INFO name:: No table opened. 2026-09-18 09:34:34 INFO name:: No table opened. .2026-09-18 09:34:34 INFO statwt::::casa ########################################## 2026-09-18 09:34:34 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:34 INFO statwt::::casa statwt( vis='ngc5921.split.preview.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin='300s', slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[1.0, 2.0], flagbackup=True, preview=True, datacolumn='corrected' ) 2026-09-18 09:34:34 INFO statwt::::casa Running in preview mode. No flags will be modified, so existing flags will not be backed up. 2026-09-18 09:34:34 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:34 INFO StatWt::writeWeights RAN IN PREVIEW MODE. NO WEIGHTS NOR FLAGS WERE CHANGED. 2026-09-18 09:34:34 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 59.4848%. 2026-09-18 09:34:34 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 77.6818% 2026-09-18 09:34:34 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:34 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:34 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-09-18 09:34:34 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:34 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-09-18 09:34:34 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-09-18 09:34:34 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:34 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:33.895946 End time: 2026-09-18 09:34:34.075840 2026-09-18 09:34:34 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:34 INFO statwt::::casa ########################################## 2026-09-18 09:34:34 INFO name:: No table opened. 2026-09-18 09:34:34 INFO name:: No table opened. .2026-09-18 09:34:34 INFO statwt::::casa ########################################## 2026-09-18 09:34:34 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:34 INFO statwt::::casa statwt( vis='ngc5921.split.residualwmodel.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='residual' ) 2026-09-18 09:34:34 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:34 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:34 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:34 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:34 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA - MODEL_DATA to compute weights 2026-09-18 09:34:35 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:35 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:35 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:35 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:35 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-18 09:34:35 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:35 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-18 09:34:35 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-18 09:34:35 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:35 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:34.167515 End time: 2026-09-18 09:34:34.789424 2026-09-18 09:34:35 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:35 INFO statwt::::casa ########################################## 2026-09-18 09:34:35 INFO name:: No table opened. 2026-09-18 09:34:35 INFO name:: No table opened. .2026-09-18 09:34:35 INFO statwt::::casa ########################################## 2026-09-18 09:34:35 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:35 INFO statwt::::casa statwt( vis='ngc5921.split.residualdatawmodel.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='residual_data' ) 2026-09-18 09:34:35 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:35 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:35 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:35 INFO StatWtColConfig::_determineFlags Updating the SIGMA/SIGMA_SPECTRUM values. WEIGHT/WEIGHT_SPECTRUM will not be recalculated as they are related to the values in the CORRECTED_DATA column. 2026-09-18 09:34:35 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-18 09:34:36 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:36 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:36 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:36 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:36 INFO StatWtTVI::summarizeFlagging 0 5399 2389 2026-09-18 09:34:36 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:36 INFO StatWtTVI::summarizeStats The mean of the computed weights is 1533.27 2026-09-18 09:34:36 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.48377e+06 2026-09-18 09:34:36 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:36 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:35.068616 End time: 2026-09-18 09:34:36.132802 2026-09-18 09:34:36 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:36 INFO statwt::::casa ########################################## 2026-09-18 09:34:37 INFO name:: No table opened. 2026-09-18 09:34:37 INFO name:: No table opened. .2026-09-18 09:34:37 INFO statwt::::casa ########################################## 2026-09-18 09:34:37 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:37 INFO statwt::::casa statwt( vis='ngc5921.split.residualdatawoutmodel.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='residual_data' ) 2026-09-18 09:34:37 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:37 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:37 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:37 INFO StatWtColConfig::_determineFlags Updating the SIGMA/SIGMA_SPECTRUM values. WEIGHT/WEIGHT_SPECTRUM will not be recalculated as they are related to the values in the CORRECTED_DATA column. 2026-09-18 09:34:37 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-18 09:34:38 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:38 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:38 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:38 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:38 INFO StatWtTVI::summarizeFlagging 0 5399 2389 2026-09-18 09:34:38 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:38 INFO StatWtTVI::summarizeStats The mean of the computed weights is 1533.27 2026-09-18 09:34:38 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.48377e+06 2026-09-18 09:34:38 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:38 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:36.711740 End time: 2026-09-18 09:34:38.157022 2026-09-18 09:34:38 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:38 INFO statwt::::casa ########################################## 2026-09-18 09:34:39 INFO name:: No table opened. 2026-09-18 09:34:39 INFO name:: No table opened. .2026-09-18 09:34:39 INFO statwt::::casa ########################################## 2026-09-18 09:34:39 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:39 INFO statwt::::casa statwt( vis='ngc5921.split.residualwoutmodel.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='residual' ) 2026-09-18 09:34:39 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:39 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:39 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:39 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:39 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA - MODEL_DATA to compute weights 2026-09-18 09:34:39 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:39 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:39 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:39 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:39 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-18 09:34:39 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:39 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-18 09:34:39 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-18 09:34:39 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:40 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:38.653870 End time: 2026-09-18 09:34:39.719140 2026-09-18 09:34:40 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:40 INFO statwt::::casa ########################################## 2026-09-18 09:34:40 INFO name:: No table opened. 2026-09-18 09:34:40 INFO name:: No table opened. .2026-09-18 09:34:40 INFO statwt::::casa ########################################## 2026-09-18 09:34:40 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:40 INFO statwt::::casa statwt( vis='ngc5921.split.statstest.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:40 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:40 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:40 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:41 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:41 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:41 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:41 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:41 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:41 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:41 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-18 09:34:41 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:41 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-18 09:34:41 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-18 09:34:41 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:41 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:40.278027 End time: 2026-09-18 09:34:41.044141 2026-09-18 09:34:41 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:41 INFO statwt::::casa ########################################## 2026-09-18 09:34:41 INFO name:: No table opened. 2026-09-18 09:34:41 INFO name:: No table opened. .2026-09-18 09:34:41 INFO statwt::::casa ########################################## 2026-09-18 09:34:41 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:41 INFO statwt::::casa statwt( vis='ngc5921.split.scansel.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='5', combine='corr', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:41 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:41 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:41 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:41 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:41 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:41 INFO StatWtTVI::summarizeFlagging Originally, 18.1818% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:41 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.1818% 2026-09-18 09:34:41 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:41 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:41 INFO StatWtTVI::summarizeFlagging 0 135 88 2026-09-18 09:34:41 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:41 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.676 2026-09-18 09:34:41 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.37272 2026-09-18 09:34:41 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:42 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:41.148166 End time: 2026-09-18 09:34:41.522148 2026-09-18 09:34:42 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:42 INFO statwt::::casa ########################################## 2026-09-18 09:34:42 INFO name:: No table opened. 2026-09-18 09:34:42 INFO name:: No table opened. .2026-09-18 09:34:42 INFO statwt::::casa ########################################## 2026-09-18 09:34:42 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:42 INFO statwt::::casa statwt( vis='ngc5921.split.sliding_time_window.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin='300s', slidetimebin=True, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:42 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:42 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:42 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:43 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:43 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:43 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:43 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:43 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:43 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:43 INFO StatWtTVI::summarizeFlagging 0 5400 2944 2026-09-18 09:34:43 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:43 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.87503 2026-09-18 09:34:43 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.18372 2026-09-18 09:34:43 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:43 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:42.354555 End time: 2026-09-18 09:34:43.345981 2026-09-18 09:34:43 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:43 INFO statwt::::casa ########################################## 2026-09-18 09:34:44 INFO name:: No table opened. 2026-09-18 09:34:44 INFO name:: No table opened. .2026-09-18 09:34:44 INFO statwt::::casa ########################################## 2026-09-18 09:34:44 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:44 INFO statwt::::casa statwt( vis='ngc5921.split.sliding_time_window.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=5, slidetimebin=True, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:44 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:44 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:44 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-18 09:34:44 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:44 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:44 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:44 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:44 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:44 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:44 INFO StatWtTVI::summarizeFlagging 0 5400 2892 2026-09-18 09:34:44 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:44 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.86331 2026-09-18 09:34:44 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.05373 2026-09-18 09:34:44 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:44 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:43.663097 End time: 2026-09-18 09:34:44.426810 2026-09-18 09:34:44 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:44 INFO statwt::::casa ########################################## 2026-09-18 09:34:45 INFO statwt::::casa ########################################## 2026-09-18 09:34:45 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:45 INFO statwt::::casa statwt( vis='ngc5921.split.sliding_time_window.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=6, slidetimebin=True, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:45 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:45 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:45 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-09-18 09:34:45 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:45 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:45 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:45 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:45 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:45 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:45 INFO StatWtTVI::summarizeFlagging 0 5400 2782 2026-09-18 09:34:45 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:45 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.83245 2026-09-18 09:34:45 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.90358 2026-09-18 09:34:45 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:45 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:44.754023 End time: 2026-09-18 09:34:45.446215 2026-09-18 09:34:45 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:45 INFO statwt::::casa ########################################## 2026-09-18 09:34:46 INFO name:: No table opened. 2026-09-18 09:34:46 INFO name:: No table opened. .2026-09-18 09:34:46 INFO statwt::::casa ########################################## 2026-09-18 09:34:46 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:46 INFO statwt::::casa statwt( vis='ngc5921.split.spwsel.ms', selectdata=True, field='', spw='0', intent='', array='', observation='', scan='', combine='corr', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:46 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:46 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:46 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:46 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:46 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:46 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:46 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:46 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:46 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:46 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-09-18 09:34:46 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:46 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-09-18 09:34:46 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-09-18 09:34:46 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:46 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:45.721572 End time: 2026-09-18 09:34:46.387094 2026-09-18 09:34:46 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:46 INFO statwt::::casa ########################################## 2026-09-18 09:34:47 INFO name:: No table opened. 2026-09-18 09:34:47 INFO name:: No table opened. .2026-09-18 09:34:47 INFO statwt::::casa ########################################## 2026-09-18 09:34:47 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:47 INFO statwt::::casa statwt( vis='ngc5921.split.statalg.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='cl', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:47 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:47 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:47 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:47 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:47 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:47 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:47 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:47 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:47 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:47 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-18 09:34:47 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:47 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-18 09:34:47 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-18 09:34:47 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:47 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:46.583297 End time: 2026-09-18 09:34:47.406764 2026-09-18 09:34:47 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:47 INFO statwt::::casa ########################################## 2026-09-18 09:34:47 INFO statwt::::casa ########################################## 2026-09-18 09:34:47 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:47 INFO statwt::::casa statwt( vis='ngc5921.split.statalg.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='ch', fence=-1.0, center='mean', lside=True, zscore=5.0, maxiter=3, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:47 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:47 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:47 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-18 09:34:48 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:48 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:48 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:48 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:48 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:48 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:48 INFO StatWtTVI::summarizeFlagging 0 5399 2485 2026-09-18 09:34:48 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:48 INFO StatWtTVI::summarizeStats The mean of the computed weights is 9.49987 2026-09-18 09:34:48 INFO StatWtTVI::summarizeStats The variance of the computed weights is 19.7106 2026-09-18 09:34:48 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:48 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:47.472780 End time: 2026-09-18 09:34:48.188105 2026-09-18 09:34:48 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:48 INFO statwt::::casa ########################################## 2026-09-18 09:34:48 INFO statwt::::casa ########################################## 2026-09-18 09:34:48 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:48 INFO statwt::::casa statwt( vis='ngc5921.split.statalg.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='h', fence=0.2, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:48 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:48 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:48 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-09-18 09:34:48 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:48 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:49 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:49 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:49 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:49 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:49 INFO StatWtTVI::summarizeFlagging 0 5399 2320 2026-09-18 09:34:49 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:49 INFO StatWtTVI::summarizeStats The mean of the computed weights is 49.5864 2026-09-18 09:34:49 INFO StatWtTVI::summarizeStats The variance of the computed weights is 418.744 2026-09-18 09:34:49 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:49 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:48.267476 End time: 2026-09-18 09:34:49.067577 2026-09-18 09:34:49 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:49 INFO statwt::::casa ########################################## 2026-09-18 09:34:49 INFO statwt::::casa ########################################## 2026-09-18 09:34:49 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:49 INFO statwt::::casa statwt( vis='ngc5921.split.statalg.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='f', fence=-1.0, center='median', lside=False, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:49 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:49 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:49 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_4 2026-09-18 09:34:49 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:49 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:50 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:50 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:50 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:50 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:50 INFO StatWtTVI::summarizeFlagging 0 5399 4066 2026-09-18 09:34:50 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:50 INFO StatWtTVI::summarizeStats The mean of the computed weights is 5.55784 2026-09-18 09:34:50 INFO StatWtTVI::summarizeStats The variance of the computed weights is 22.2368 2026-09-18 09:34:50 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:50 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:49.140887 End time: 2026-09-18 09:34:49.914939 2026-09-18 09:34:50 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:50 INFO statwt::::casa ########################################## 2026-09-18 09:34:50 INFO statwt::::casa ########################################## 2026-09-18 09:34:50 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:50 INFO statwt::::casa statwt( vis='ngc5921.split.statalg.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='bogus', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:50 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:50 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:50 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_5 2026-09-18 09:34:50 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:50 SEVERE ms::statwt Exception Reported: Unsupported value for 'statalg' at File: /source/casa6/casatools/src/code/mstransform/TVI/StatWtTVI.cc, line: 406 2026-09-18 09:34:50 SEVERE statwt::::casa Exception Reported: Error in statwt: Unsupported value for 'statalg' at File: /source/casa6/casatools/src/code/mstransform/TVI/StatWtTVI.cc, line: 406 2026-09-18 09:34:50 INFO statwt::::casa Traceback (most recent call last): 2026-09-18 09:34:50 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.7-9-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/statwt.py", line 993, in __call__ 2026-09-18 09:34:50 INFO statwt::::casa+ task_result = _statwt_t( _pc.document['vis'],_pc.document['selectdata'],_pc.document['field'],_pc.document['spw'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['scan'],_pc.document['combine'],_pc.document['timebin'],_pc.document['slidetimebin'],_pc.document['chanbin'],_pc.document['minsamp'],_pc.document['statalg'],_pc.document['fence'],_pc.document['center'],_pc.document['lside'],_pc.document['zscore'],_pc.document['maxiter'],_pc.document['fitspw'],_pc.document['excludechans'],_pc.document['wtrange'],_pc.document['flagbackup'],_pc.document['preview'],_pc.document['datacolumn'] ) 2026-09-18 09:34:50 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-18 09:34:50 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.7-9-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_statwt.py", line 56, in statwt 2026-09-18 09:34:50 INFO statwt::::casa+ rval = myms.statwt( 2026-09-18 09:34:50 INFO statwt::::casa+ ^^^^^^^^^^^^ 2026-09-18 09:34:50 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.7-9-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/ms.py", line 1235, in statwt 2026-09-18 09:34:50 INFO statwt::::casa+ return self._swigobj.statwt(combine, timebin, slidetimebin, chanbin, minsamp, statalg, fence, center, lside, zscore, maxiter, fitspw, excludechans, wtrange, preview, datacolumn) 2026-09-18 09:34:50 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-18 09:34:50 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.7-9-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/ms.py", line 2646, in statwt 2026-09-18 09:34:50 INFO statwt::::casa+ return _ms.ms_statwt(self, *args, **kwargs) 2026-09-18 09:34:50 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-18 09:34:50 INFO statwt::::casa+ RuntimeError: Unsupported value for 'statalg' at File: /source/casa6/casatools/src/code/mstransform/TVI/StatWtTVI.cc, line: 406 2026-09-18 09:34:50 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:49.988425 End time: 2026-09-18 09:34:50.212646 2026-09-18 09:34:50 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:50 INFO statwt::::casa ########################################## 2026-09-18 09:34:50 INFO name:: No table opened. 2026-09-18 09:34:50 INFO name:: No table opened. .2026-09-18 09:34:50 INFO statwt::::casa ########################################## 2026-09-18 09:34:50 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:50 INFO statwt::::casa statwt( vis='ngc5921.split.timebin.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin='300s', slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:50 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:50 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:50 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:50 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:50 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:51 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:51 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:51 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:51 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:51 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-09-18 09:34:51 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:51 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-09-18 09:34:51 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-09-18 09:34:51 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:51 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:50.272001 End time: 2026-09-18 09:34:50.872103 2026-09-18 09:34:51 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:51 INFO statwt::::casa ########################################## 2026-09-18 09:34:51 INFO statwt::::casa ########################################## 2026-09-18 09:34:51 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:51 INFO statwt::::casa statwt( vis='ngc5921.split.timebin.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin=10, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:51 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:51 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:51 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-18 09:34:51 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:51 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:52 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-18 09:34:52 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-18 09:34:52 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:52 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:52 INFO StatWtTVI::summarizeFlagging 0 2700 948 2026-09-18 09:34:52 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:52 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.50245 2026-09-18 09:34:52 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.046 2026-09-18 09:34:52 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:52 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:51.209430 End time: 2026-09-18 09:34:51.716565 2026-09-18 09:34:52 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:52 INFO statwt::::casa ########################################## 2026-09-18 09:34:52 INFO name:: No table opened. 2026-09-18 09:34:52 INFO name:: No table opened. .2026-09-18 09:34:52 INFO statwt::::casa ########################################## 2026-09-18 09:34:52 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:52 INFO statwt::::casa statwt( vis='ngc5921.wtrange.split.timebin.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin='300s', slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[1.0, 2.0], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:52 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:52 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:52 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-18 09:34:52 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:52 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:53 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 59.4848%. 2026-09-18 09:34:53 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 77.6818% 2026-09-18 09:34:53 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:53 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:53 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-09-18 09:34:53 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:53 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-09-18 09:34:53 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-09-18 09:34:53 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:53 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:52.045335 End time: 2026-09-18 09:34:52.883542 2026-09-18 09:34:53 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:53 INFO statwt::::casa ########################################## 2026-09-18 09:34:53 INFO statwt::::casa ########################################## 2026-09-18 09:34:53 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-18 09:34:53 INFO statwt::::casa statwt( vis='ngc5921.wtrange.split.timebin.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin='300s', slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[1.0, 2.0], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-09-18 09:34:53 INFO statwt::::casa Backup original flags before applying new flags 2026-09-18 09:34:53 INFO AgentFlagger::open Table type is Measurement Set 2026-09-18 09:34:53 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-18 09:34:54 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-18 09:34:54 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-18 09:34:54 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 59.4848%. 2026-09-18 09:34:54 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 77.6818% 2026-09-18 09:34:54 INFO StatWtTVI::summarizeFlagging 2026-09-18 09:34:54 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-18 09:34:54 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-09-18 09:34:54 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-18 09:34:54 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-09-18 09:34:54 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-09-18 09:34:54 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-18 09:34:54 INFO statwt::::casa Task statwt complete. Start time: 2026-09-18 09:34:53.335807 End time: 2026-09-18 09:34:53.972593 2026-09-18 09:34:54 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-18 09:34:54 INFO statwt::::casa ########################################## 2026-09-18 09:34:54 INFO name:: No table opened. 2026-09-18 09:34:54 INFO name:: No table opened. . ---------------------------------------------------------------------- Ran 23 tests in 54.396s OK Generating XML reports...