2026-09-23 19:42:49 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-09-23 19:42:49 INFO ::casa loaded config file : /wheeldirectory/casa-CAS-14882-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-09-23 19:42:49 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-09-23 19:42:49 INFO ::casa 2026-09-23 19:42:49 INFO ::casa config values 2026-09-23 19:42:49 INFO ::casa agg = False 2026-09-23 19:42:49 INFO ::casa cachedir = '/home/casatest/.casa' 2026-09-23 19:42:49 INFO ::casa casaconfig_verbose = 1 2026-09-23 19:42:49 INFO ::casa colors = 'Neutral' 2026-09-23 19:42:49 INFO ::casa data_auto_update = False 2026-09-23 19:42:49 INFO ::casa data_update_interval = 1 2026-09-23 19:42:49 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-09-23 19:42:49 INFO ::casa iplog = False 2026-09-23 19:42:49 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_statwt_casashell/ipython-20260923-194246.log' 2026-09-23 19:42:49 INFO ::casa log2term = True 2026-09-23 19:42:49 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_statwt_casashell/casa-20260923-194246.log' 2026-09-23 19:42:49 INFO ::casa measures_auto_update = False 2026-09-23 19:42:49 INFO ::casa measures_site = ['https://www.astron.nl/iers/', 'https://go.nrao.edu/iers/'] 2026-09-23 19:42:49 INFO ::casa measures_site_interval = 2 2026-09-23 19:42:49 INFO ::casa measures_update_interval = 1 2026-09-23 19:42:49 INFO ::casa measurespath = '/opt/casa/data/master' 2026-09-23 19:42:49 INFO ::casa nogui = False 2026-09-23 19:42:49 INFO ::casa nologfile = False 2026-09-23 19:42:49 INFO ::casa nologger = True 2026-09-23 19:42:49 INFO ::casa pipeline = False 2026-09-23 19:42:49 INFO ::casa skipnetworkcheck = False 2026-09-23 19:42:49 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-09-23 19:42:49 INFO ::casa user_site = False 2026-09-23 19:42:49 INFO ::casa 2026-09-23 19:42:49 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-09-23 19:42:49 INFO ::casa measures version : WSRT_Measures_20211102-160001.ztar 2026-09-23 19:42:49 INFO ::casa 2026-09-23 19:42:49 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-09-23 19:42:49 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/09/10/15:15, 2026/08/11/00:00:00 2026-09-23 19:42:49 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/09/10/15:15, 2026/08/11/00:00:00 2026-09-23 19:42:49 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/09/23/15:15, 2026/12/22/00:00:00 2026-09-23 19:42:49 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 6.7.7.7a14882.dev1 -- Common Astronomy Software Applications [6.7.7.7a14882.dev1] 2026-09-23 19:42:50 INFO statwt::::casa ########################################## 2026-09-23 19:42:50 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:42:50 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' ) 2026-09-23 19:42:50 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:42:50 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:42:51 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:42:51 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. 2026-09-23 19:42:51 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:42:51 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:42:51 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:42:51 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:42:51 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:42:51 INFO StatWtTVI::summarizeFlagging 0 5399 3913 2026-09-23 19:42:51 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-09-23 19:42:51 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.25577 2026-09-23 19:42:51 INFO StatWtTVI::summarizeStats The variance of the computed weights is 5.88042 2026-09-23 19:42:51 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:42:51 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:42:50.483719 End time: 2026-09-23 19:42:50.896462 2026-09-23 19:42:51 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:42:51 INFO statwt::::casa ########################################## 2026-09-23 19:42:51 INFO statwt::::casa ########################################## 2026-09-23 19:42:51 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:42:51 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' ) 2026-09-23 19:42:51 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:42:51 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:42:51 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 19:42:51 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. 2026-09-23 19:42:51 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:42:52 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:42:52 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:42:52 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:42:52 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:42:52 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-23 19:42:52 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:42:52 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-23 19:42:52 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-23 19:42:52 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:42:52 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:42:51.269248 End time: 2026-09-23 19:42:51.612586 2026-09-23 19:42:52 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:42:52 INFO statwt::::casa ########################################## 2026-09-23 19:42:52 INFO statwt::::casa ########################################## 2026-09-23 19:42:52 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:42:52 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' ) 2026-09-23 19:42:52 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:42:52 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:42:52 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-09-23 19:42:52 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. 2026-09-23 19:42:52 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:42:52 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:42:52 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:42:52 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:42:52 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:42:52 INFO StatWtTVI::summarizeFlagging 0 5399 3913 2026-09-23 19:42:52 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-09-23 19:42:52 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.25577 2026-09-23 19:42:52 INFO StatWtTVI::summarizeStats The variance of the computed weights is 5.88042 2026-09-23 19:42:52 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:42:52 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:42:51.965325 End time: 2026-09-23 19:42:52.313144 2026-09-23 19:42:52 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:42:52 INFO statwt::::casa ########################################## 2026-09-23 19:42:52 INFO statwt::::casa ########################################## 2026-09-23 19:42:52 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:42:52 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' ) 2026-09-23 19:42:52 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:42:52 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:42:52 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_4 2026-09-23 19:42:52 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. 2026-09-23 19:42:52 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:42:53 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:42:53 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:42:53 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:42:53 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:42:53 INFO StatWtTVI::summarizeFlagging 0 2700 1831 2026-09-23 19:42:53 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-09-23 19:42:53 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.60577 2026-09-23 19:42:53 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.70016 2026-09-23 19:42:53 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:42:53 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:42:52.410446 End time: 2026-09-23 19:42:52.658922 2026-09-23 19:42:53 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:42:53 INFO statwt::::casa ########################################## 2026-09-23 19:42:53 INFO statwt::::casa ########################################## 2026-09-23 19:42:53 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:42:53 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' ) 2026-09-23 19:42:53 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:42:53 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:42:53 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_5 2026-09-23 19:42:53 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. 2026-09-23 19:42:53 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:42:53 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:42:53 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:42:53 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:42:53 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:42:53 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-09-23 19:42:53 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:42:53 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-09-23 19:42:53 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-09-23 19:42:53 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:42:53 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:42:52.988884 End time: 2026-09-23 19:42:53.243979 2026-09-23 19:42:53 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:42:53 INFO statwt::::casa ########################################## 2026-09-23 19:42:54 INFO statwt::::casa ########################################## 2026-09-23 19:42:54 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:42:54 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' ) 2026-09-23 19:42:54 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:42:54 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:42:54 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_6 2026-09-23 19:42:54 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. 2026-09-23 19:42:54 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:42:54 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:42:54 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:42:54 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:42:54 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:42:54 INFO StatWtTVI::summarizeFlagging 0 2700 1831 2026-09-23 19:42:54 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-09-23 19:42:54 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.60577 2026-09-23 19:42:54 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.70016 2026-09-23 19:42:54 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:42:54 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:42:53.508106 End time: 2026-09-23 19:42:53.759346 2026-09-23 19:42:54 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:42:54 INFO statwt::::casa ########################################## 2026-09-23 19:42:54 INFO name:: No table opened. 2026-09-23 19:42:54 INFO name:: No table opened. .2026-09-23 19:42:54 INFO statwt::::casa ########################################## 2026-09-23 19:42:54 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:42:54 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' ) 2026-09-23 19:42:54 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:42:54 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:42:54 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:42:54 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. 2026-09-23 19:42:54 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:42:55 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:42:55 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:42:55 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:42:55 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:42:55 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-09-23 19:42:55 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:42:55 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-09-23 19:42:55 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-09-23 19:42:55 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:42:55 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:42:53.855259 End time: 2026-09-23 19:42:55.015117 2026-09-23 19:42:55 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:42:55 INFO statwt::::casa ########################################## 2026-09-23 19:42:55 INFO statwt::::casa ########################################## 2026-09-23 19:42:55 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:42:55 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' ) 2026-09-23 19:42:55 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:42:55 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:42:55 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 19:42:55 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. 2026-09-23 19:42:55 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:42:56 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:42:56 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:42:56 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:42:56 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:42:56 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-09-23 19:42:56 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:42:56 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-09-23 19:42:56 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-09-23 19:42:56 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:42:56 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:42:55.053936 End time: 2026-09-23 19:42:56.163232 2026-09-23 19:42:56 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:42:56 INFO statwt::::casa ########################################## 2026-09-23 19:42:56 INFO statwt::::casa ########################################## 2026-09-23 19:42:56 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:42:56 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' ) 2026-09-23 19:42:56 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:42:56 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:42:56 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-09-23 19:42:56 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. 2026-09-23 19:42:56 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-23 19:42:56 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-23 19:42:56 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:42:57 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:42:57 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:42:57 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:42:57 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:42:57 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-09-23 19:42:57 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:42:57 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-09-23 19:42:57 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-09-23 19:42:57 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:42:57 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:42:56.239566 End time: 2026-09-23 19:42:57.420185 2026-09-23 19:42:57 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:42:57 INFO statwt::::casa ########################################## 2026-09-23 19:42:57 INFO statwt::::casa ########################################## 2026-09-23 19:42:57 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:42:57 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' ) 2026-09-23 19:42:57 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:42:57 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:42:57 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_4 2026-09-23 19:42:58 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. 2026-09-23 19:42:58 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-23 19:42:58 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-23 19:42:58 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:42:59 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:42:59 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:42:59 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:42:59 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:42:59 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-09-23 19:42:59 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:42:59 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-09-23 19:42:59 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-09-23 19:42:59 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:42:59 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:42:57.463465 End time: 2026-09-23 19:42:58.683847 2026-09-23 19:42:59 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:42:59 INFO statwt::::casa ########################################## 2026-09-23 19:42:59 INFO statwt::::casa ########################################## 2026-09-23 19:42:59 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:42:59 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' ) 2026-09-23 19:42:59 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:42:59 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:42:59 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_5 2026-09-23 19:42:59 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. 2026-09-23 19:42:59 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:42:59 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:42:59 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:42:59 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:42:59 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:42:59 INFO StatWtTVI::summarizeFlagging 0 21600 11131 2026-09-23 19:42:59 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:42:59 INFO StatWtTVI::summarizeStats The mean of the computed weights is 14.0517 2026-09-23 19:42:59 INFO StatWtTVI::summarizeStats The variance of the computed weights is 92.3814 2026-09-23 19:42:59 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:42:59 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:42:58.720431 End time: 2026-09-23 19:42:59.381342 2026-09-23 19:42:59 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:42:59 INFO statwt::::casa ########################################## 2026-09-23 19:42:59 INFO statwt::::casa ########################################## 2026-09-23 19:42:59 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:42:59 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' ) 2026-09-23 19:42:59 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:42:59 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:42:59 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_6 2026-09-23 19:42:59 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. 2026-09-23 19:42:59 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:00 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:00 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:00 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:00 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:00 INFO StatWtTVI::summarizeFlagging 0 21600 11131 2026-09-23 19:43:00 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:00 INFO StatWtTVI::summarizeStats The mean of the computed weights is 14.0517 2026-09-23 19:43:00 INFO StatWtTVI::summarizeStats The variance of the computed weights is 92.3814 2026-09-23 19:43:00 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:00 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:42:59.416754 End time: 2026-09-23 19:43:00.085852 2026-09-23 19:43:00 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:00 INFO statwt::::casa ########################################## 2026-09-23 19:43:00 INFO statwt::::casa ########################################## 2026-09-23 19:43:00 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:00 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' ) 2026-09-23 19:43:00 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:00 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:00 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_7 2026-09-23 19:43:00 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. 2026-09-23 19:43:00 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-23 19:43:00 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-23 19:43:00 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:01 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:01 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:01 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:01 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:01 INFO StatWtTVI::summarizeFlagging 0 21600 11131 2026-09-23 19:43:01 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:01 INFO StatWtTVI::summarizeStats The mean of the computed weights is 14.0517 2026-09-23 19:43:01 INFO StatWtTVI::summarizeStats The variance of the computed weights is 92.3814 2026-09-23 19:43:01 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:01 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:00.141289 End time: 2026-09-23 19:43:00.764788 2026-09-23 19:43:01 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:01 INFO statwt::::casa ########################################## 2026-09-23 19:43:01 INFO name:: No table opened. 2026-09-23 19:43:01 INFO name:: No table opened. .2026-09-23 19:43:02 INFO statwt::::casa ########################################## 2026-09-23 19:43:02 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:02 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' ) 2026-09-23 19:43:02 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:02 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:02 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:02 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. 2026-09-23 19:43:02 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-23 19:43:02 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-23 19:43:03 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-23 19:43:04 INFO StatWtTVI::summarizeFlagging Originally, 28.7129% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:04 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 28.7129% 2026-09-23 19:43:04 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:04 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:04 INFO StatWtTVI::summarizeFlagging 0 356 4 2026-09-23 19:43:04 INFO StatWtTVI::summarizeFlagging 1 288 18 2026-09-23 19:43:04 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15;SPW 1, channels 0~15 2026-09-23 19:43:04 INFO StatWtTVI::summarizeStats The mean of the computed weights is 34.8553 2026-09-23 19:43:04 INFO StatWtTVI::summarizeStats The variance of the computed weights is 104.361 2026-09-23 19:43:04 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:04 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:01.965356 End time: 2026-09-23 19:43:03.959534 2026-09-23 19:43:04 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:04 INFO statwt::::casa ########################################## 2026-09-23 19:43:05 INFO statwt::::casa ########################################## 2026-09-23 19:43:05 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:05 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' ) 2026-09-23 19:43:05 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:05 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:05 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:05 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. 2026-09-23 19:43:05 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-23 19:43:05 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-23 19:43:05 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. 2026-09-23 19:43:05 SEVERE ms::statwt+ ... thrown by casac::record* casac::ms::statwt(const string&, const casac::variant&, bool, const casac::variant&, long int, const string&, double, const string&, bool, double, long int, const string&, bool, const std::vector >&, bool, const string&) at File: src/tools/ms/ms_cmpt.cc, line: 7328 2026-09-23 19:43:05 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. 2026-09-23 19:43:05 SEVERE statwt::::casa+ ... thrown by casac::record* casac::ms::statwt(const string&, const casac::variant&, bool, const casac::variant&, long int, const string&, double, const string&, bool, double, long int, const string&, bool, const std::vector >&, bool, const string&) at File: src/tools/ms/ms_cmpt.cc, line: 7328 2026-09-23 19:43:05 INFO statwt::::casa Traceback (most recent call last): 2026-09-23 19:43:05 INFO statwt::::casa+ File "/wheeldirectory/casa-CAS-14882-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/statwt.py", line 993, in __call__ 2026-09-23 19:43:05 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'] ) 2026-09-23 19:43:05 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-23 19:43:05 INFO statwt::::casa+ File "/wheeldirectory/casa-CAS-14882-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_statwt.py", line 56, in statwt 2026-09-23 19:43:05 INFO statwt::::casa+ rval = myms.statwt( 2026-09-23 19:43:05 INFO statwt::::casa+ ^^^^^^^^^^^^ 2026-09-23 19:43:05 INFO statwt::::casa+ File "/wheeldirectory/casa-CAS-14882-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/ms.py", line 1235, in statwt 2026-09-23 19:43:05 INFO statwt::::casa+ return self._swigobj.statwt(combine, timebin, slidetimebin, chanbin, minsamp, statalg, fence, center, lside, zscore, maxiter, fitspw, excludechans, wtrange, preview, datacolumn) 2026-09-23 19:43:05 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-23 19:43:05 INFO statwt::::casa+ File "/wheeldirectory/casa-CAS-14882-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/ms.py", line 2775, in statwt 2026-09-23 19:43:05 INFO statwt::::casa+ return _ms.ms_statwt(self, *args, **kwargs) 2026-09-23 19:43:05 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-23 19:43:05 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. 2026-09-23 19:43:05 INFO statwt::::casa+ ... thrown by casac::record* casac::ms::statwt(const string&, const casac::variant&, bool, const casac::variant&, long int, const string&, double, const string&, bool, double, long int, const string&, bool, const std::vector >&, bool, const string&) at File: src/tools/ms/ms_cmpt.cc, line: 7328 2026-09-23 19:43:05 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:04.682356 End time: 2026-09-23 19:43:05.269996 2026-09-23 19:43:05 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:05 INFO statwt::::casa ########################################## 2026-09-23 19:43:05 INFO statwt::::casa ########################################## 2026-09-23 19:43:05 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:05 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' ) 2026-09-23 19:43:05 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:05 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:05 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 19:43:05 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. 2026-09-23 19:43:05 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-23 19:43:06 INFO StatWtTVI::summarizeFlagging Originally, 15.3455% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:06 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 15.3455% 2026-09-23 19:43:06 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:06 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:06 INFO StatWtTVI::summarizeFlagging 0 356 4 2026-09-23 19:43:06 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15 2026-09-23 19:43:06 INFO StatWtTVI::summarizeStats The mean of the computed weights is 38.2032 2026-09-23 19:43:06 INFO StatWtTVI::summarizeStats The variance of the computed weights is 83.0845 2026-09-23 19:43:06 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:06 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:05.274994 End time: 2026-09-23 19:43:06.009406 2026-09-23 19:43:06 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:06 INFO statwt::::casa ########################################## 2026-09-23 19:43:06 INFO name:: No table opened. 2026-09-23 19:43:06 INFO name:: No table opened. .2026-09-23 19:43:06 INFO statwt::::casa ########################################## 2026-09-23 19:43:06 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:06 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' ) 2026-09-23 19:43:06 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:06 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:06 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:06 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. 2026-09-23 19:43:06 INFO StatWtTVI::StatWtTVI Using DATA to compute weights 2026-09-23 19:43:06 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:06 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:06 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:06 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:06 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-09-23 19:43:06 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:06 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-09-23 19:43:06 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-09-23 19:43:06 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:06 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:06.115381 End time: 2026-09-23 19:43:06.357906 2026-09-23 19:43:06 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:06 INFO statwt::::casa ########################################## 2026-09-23 19:43:07 INFO name:: No table opened. 2026-09-23 19:43:07 INFO name:: No table opened. .2026-09-23 19:43:07 INFO statwt::::casa ########################################## 2026-09-23 19:43:07 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:07 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' ) 2026-09-23 19:43:07 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:07 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:07 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:07 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. 2026-09-23 19:43:07 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:07 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:07 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:07 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:07 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:07 INFO StatWtTVI::summarizeFlagging 0 315 124 2026-09-23 19:43:07 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:07 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.46865 2026-09-23 19:43:07 INFO StatWtTVI::summarizeStats The variance of the computed weights is 0.933388 2026-09-23 19:43:07 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:07 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:06.767741 End time: 2026-09-23 19:43:07.000109 2026-09-23 19:43:07 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:07 INFO statwt::::casa ########################################## 2026-09-23 19:43:07 INFO statwt::::casa ########################################## 2026-09-23 19:43:07 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:07 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' ) 2026-09-23 19:43:07 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:07 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:07 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 19:43:07 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. 2026-09-23 19:43:07 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging 0 315 124 2026-09-23 19:43:08 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:08 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.46865 2026-09-23 19:43:08 INFO StatWtTVI::summarizeStats The variance of the computed weights is 0.933388 2026-09-23 19:43:08 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:08 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:07.355424 End time: 2026-09-23 19:43:07.585736 2026-09-23 19:43:08 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:08 INFO statwt::::casa ########################################## 2026-09-23 19:43:08 INFO name:: No table opened. 2026-09-23 19:43:08 INFO name:: No table opened. .2026-09-23 19:43:08 INFO statwt::::casa ########################################## 2026-09-23 19:43:08 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:08 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' ) 2026-09-23 19:43:08 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:08 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:08 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:08 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. 2026-09-23 19:43:08 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging Originally, 18.1818% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.1818% 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging 0 1530 1019 2026-09-23 19:43:08 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:08 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.57858 2026-09-23 19:43:08 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.8497 2026-09-23 19:43:08 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:08 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:07.680842 End time: 2026-09-23 19:43:07.836994 2026-09-23 19:43:08 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:08 INFO statwt::::casa ########################################## 2026-09-23 19:43:08 INFO statwt::::casa ########################################## 2026-09-23 19:43:08 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:08 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' ) 2026-09-23 19:43:08 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:08 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:08 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 19:43:08 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. 2026-09-23 19:43:08 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging Originally, 18.1818% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.1818% 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:08 INFO StatWtTVI::summarizeFlagging 0 1530 1019 2026-09-23 19:43:08 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:08 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.57858 2026-09-23 19:43:08 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.8497 2026-09-23 19:43:08 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:08 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:08.142481 End time: 2026-09-23 19:43:08.314541 2026-09-23 19:43:08 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:08 INFO statwt::::casa ########################################## 2026-09-23 19:43:08 INFO name:: No table opened. 2026-09-23 19:43:08 INFO name:: No table opened. .2026-09-23 19:43:08 INFO statwt::::casa ########################################## 2026-09-23 19:43:08 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:08 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' ) 2026-09-23 19:43:08 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:08 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:08 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:08 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. 2026-09-23 19:43:08 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-09-23 19:43:09 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:09 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-09-23 19:43:09 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-09-23 19:43:09 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:09 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:08.410023 End time: 2026-09-23 19:43:08.645815 2026-09-23 19:43:09 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:09 INFO statwt::::casa ########################################## 2026-09-23 19:43:09 INFO statwt::::casa ########################################## 2026-09-23 19:43:09 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:09 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' ) 2026-09-23 19:43:09 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:09 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:09 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 19:43:09 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. 2026-09-23 19:43:09 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0.0151515%. 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.2121% 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging 0 2699 1793 2026-09-23 19:43:09 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:09 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00706 2026-09-23 19:43:09 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.34301 2026-09-23 19:43:09 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:09 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:08.699224 End time: 2026-09-23 19:43:08.932126 2026-09-23 19:43:09 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:09 INFO statwt::::casa ########################################## 2026-09-23 19:43:09 INFO name:: No table opened. 2026-09-23 19:43:09 INFO name:: No table opened. .2026-09-23 19:43:09 INFO statwt::::casa ########################################## 2026-09-23 19:43:09 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:09 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' ) 2026-09-23 19:43:09 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:09 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:09 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:09 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. 2026-09-23 19:43:09 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging Originally, 28.7129% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 28.7129% 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging 0 3936 1945 2026-09-23 19:43:09 INFO StatWtTVI::summarizeFlagging 1 3888 2344 2026-09-23 19:43:09 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15;SPW 1, channels 0~15 2026-09-23 19:43:09 INFO StatWtTVI::summarizeStats The mean of the computed weights is 40.6606 2026-09-23 19:43:09 INFO StatWtTVI::summarizeStats The variance of the computed weights is 372.347 2026-09-23 19:43:09 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:09 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:09.059123 End time: 2026-09-23 19:43:09.385355 2026-09-23 19:43:09 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:09 INFO statwt::::casa ########################################## 2026-09-23 19:43:10 INFO statwt::::casa ########################################## 2026-09-23 19:43:10 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:10 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' ) 2026-09-23 19:43:10 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:10 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:10 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:10 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. 2026-09-23 19:43:10 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-23 19:43:10 INFO StatWtTVI::summarizeFlagging Originally, 28.7129% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:10 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 28.7129% 2026-09-23 19:43:10 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:10 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:10 INFO StatWtTVI::summarizeFlagging 0 360 13 2026-09-23 19:43:10 INFO StatWtTVI::summarizeFlagging 1 360 22 2026-09-23 19:43:10 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15;SPW 1, channels 0~15 2026-09-23 19:43:10 INFO StatWtTVI::summarizeStats The mean of the computed weights is 31.8048 2026-09-23 19:43:10 INFO StatWtTVI::summarizeStats The variance of the computed weights is 45.3775 2026-09-23 19:43:10 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:10 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:09.695326 End time: 2026-09-23 19:43:10.138129 2026-09-23 19:43:10 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:10 INFO statwt::::casa ########################################## 2026-09-23 19:43:10 INFO name:: No table opened. 2026-09-23 19:43:10 INFO name:: No table opened. .2026-09-23 19:43:10 INFO statwt::::casa ########################################## 2026-09-23 19:43:10 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:10 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' ) 2026-09-23 19:43:10 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:10 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:10 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:10 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. 2026-09-23 19:43:10 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:11 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:11 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:11 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:11 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:11 INFO StatWtTVI::summarizeFlagging 0 270 89 2026-09-23 19:43:11 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:11 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.46103 2026-09-23 19:43:11 INFO StatWtTVI::summarizeStats The variance of the computed weights is 0.913911 2026-09-23 19:43:11 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:11 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:10.417723 End time: 2026-09-23 19:43:10.640146 2026-09-23 19:43:11 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:11 INFO statwt::::casa ########################################## 2026-09-23 19:43:11 INFO name:: No table opened. 2026-09-23 19:43:11 INFO name:: No table opened. .2026-09-23 19:43:11 INFO statwt::::casa ########################################## 2026-09-23 19:43:11 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:11 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' ) 2026-09-23 19:43:11 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:11 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:11 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:11 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. 2026-09-23 19:43:11 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:11 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:11 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:11 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:11 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:11 INFO StatWtTVI::summarizeFlagging 0 45 45 2026-09-23 19:43:11 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:11 INFO StatWtTVI::summarizeStats The mean of the computed weights is 0.0597345 2026-09-23 19:43:11 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.00596e-06 2026-09-23 19:43:11 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:11 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:10.867736 End time: 2026-09-23 19:43:11.070868 2026-09-23 19:43:11 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:11 INFO statwt::::casa ########################################## 2026-09-23 19:43:11 INFO statwt::::casa ########################################## 2026-09-23 19:43:11 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:11 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' ) 2026-09-23 19:43:11 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:11 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:11 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 19:43:11 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. 2026-09-23 19:43:11 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging 0 45 45 2026-09-23 19:43:12 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:12 INFO StatWtTVI::summarizeStats The mean of the computed weights is 0.0597345 2026-09-23 19:43:12 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.00596e-06 2026-09-23 19:43:12 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:12 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:11.373293 End time: 2026-09-23 19:43:11.636811 2026-09-23 19:43:12 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:12 INFO statwt::::casa ########################################## 2026-09-23 19:43:12 INFO name:: No table opened. 2026-09-23 19:43:12 INFO name:: No table opened. .2026-09-23 19:43:12 INFO statwt::::casa ########################################## 2026-09-23 19:43:12 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:12 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' ) 2026-09-23 19:43:12 INFO statwt::::casa Running in preview mode. No flags will be modified, so existing flags will not be backed up. 2026-09-23 19:43:12 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:12 INFO StatWt::writeWeights RAN IN PREVIEW MODE. NO WEIGHTS NOR FLAGS WERE CHANGED. 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 59.4848%. 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 77.6818% 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-09-23 19:43:12 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:12 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-09-23 19:43:12 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-09-23 19:43:12 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:12 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:11.794027 End time: 2026-09-23 19:43:11.945855 2026-09-23 19:43:12 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:12 INFO statwt::::casa ########################################## 2026-09-23 19:43:12 INFO name:: No table opened. 2026-09-23 19:43:12 INFO name:: No table opened. .2026-09-23 19:43:12 INFO statwt::::casa ########################################## 2026-09-23 19:43:12 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:12 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' ) 2026-09-23 19:43:12 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:12 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:12 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:12 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. 2026-09-23 19:43:12 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA - MODEL_DATA to compute weights 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:12 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-23 19:43:12 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:12 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-23 19:43:12 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-23 19:43:12 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:12 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:12.001664 End time: 2026-09-23 19:43:12.380008 2026-09-23 19:43:12 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:12 INFO statwt::::casa ########################################## 2026-09-23 19:43:13 INFO name:: No table opened. 2026-09-23 19:43:13 INFO name:: No table opened. .2026-09-23 19:43:13 INFO statwt::::casa ########################################## 2026-09-23 19:43:13 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:13 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' ) 2026-09-23 19:43:13 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:13 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:13 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:13 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. 2026-09-23 19:43:13 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-23 19:43:13 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:13 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:13 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:13 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:13 INFO StatWtTVI::summarizeFlagging 0 5399 2389 2026-09-23 19:43:13 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:13 INFO StatWtTVI::summarizeStats The mean of the computed weights is 1533.27 2026-09-23 19:43:13 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.48377e+06 2026-09-23 19:43:13 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:13 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:12.737245 End time: 2026-09-23 19:43:13.102488 2026-09-23 19:43:13 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:13 INFO statwt::::casa ########################################## 2026-09-23 19:43:13 INFO name:: No table opened. 2026-09-23 19:43:13 INFO name:: No table opened. .2026-09-23 19:43:13 INFO statwt::::casa ########################################## 2026-09-23 19:43:13 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:13 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' ) 2026-09-23 19:43:13 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:13 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:13 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:13 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. 2026-09-23 19:43:13 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-23 19:43:14 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:14 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:14 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:14 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:14 INFO StatWtTVI::summarizeFlagging 0 5399 2389 2026-09-23 19:43:14 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:14 INFO StatWtTVI::summarizeStats The mean of the computed weights is 1533.27 2026-09-23 19:43:14 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.48377e+06 2026-09-23 19:43:14 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:14 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:13.363413 End time: 2026-09-23 19:43:13.728796 2026-09-23 19:43:14 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:14 INFO statwt::::casa ########################################## 2026-09-23 19:43:14 INFO name:: No table opened. 2026-09-23 19:43:14 INFO name:: No table opened. .2026-09-23 19:43:14 INFO statwt::::casa ########################################## 2026-09-23 19:43:14 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:14 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' ) 2026-09-23 19:43:14 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:14 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:14 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:14 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. 2026-09-23 19:43:14 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA - MODEL_DATA to compute weights 2026-09-23 19:43:14 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:14 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:14 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:14 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:14 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-23 19:43:14 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:14 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-23 19:43:14 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-23 19:43:14 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:14 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:14.011187 End time: 2026-09-23 19:43:14.387353 2026-09-23 19:43:14 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:14 INFO statwt::::casa ########################################## 2026-09-23 19:43:15 INFO name:: No table opened. 2026-09-23 19:43:15 INFO name:: No table opened. .2026-09-23 19:43:15 INFO statwt::::casa ########################################## 2026-09-23 19:43:15 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:15 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' ) 2026-09-23 19:43:15 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:15 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:15 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:15 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. 2026-09-23 19:43:15 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:15 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:15 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:15 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:15 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:15 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-23 19:43:15 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:15 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-23 19:43:15 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-23 19:43:15 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:15 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:14.697993 End time: 2026-09-23 19:43:15.043312 2026-09-23 19:43:15 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:15 INFO statwt::::casa ########################################## 2026-09-23 19:43:15 INFO name:: No table opened. 2026-09-23 19:43:15 INFO name:: No table opened. .2026-09-23 19:43:15 INFO statwt::::casa ########################################## 2026-09-23 19:43:15 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:15 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' ) 2026-09-23 19:43:15 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:15 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:15 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:15 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. 2026-09-23 19:43:15 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:15 INFO StatWtTVI::summarizeFlagging Originally, 18.1818% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:15 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.1818% 2026-09-23 19:43:15 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:15 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:15 INFO StatWtTVI::summarizeFlagging 0 135 88 2026-09-23 19:43:15 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:15 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.676 2026-09-23 19:43:15 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.37272 2026-09-23 19:43:15 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:15 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:15.099857 End time: 2026-09-23 19:43:15.198453 2026-09-23 19:43:15 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:15 INFO statwt::::casa ########################################## 2026-09-23 19:43:15 INFO name:: No table opened. 2026-09-23 19:43:15 INFO name:: No table opened. .2026-09-23 19:43:15 INFO statwt::::casa ########################################## 2026-09-23 19:43:15 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:15 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' ) 2026-09-23 19:43:15 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:15 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:15 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:15 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. 2026-09-23 19:43:15 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:16 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:16 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:16 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:16 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:16 INFO StatWtTVI::summarizeFlagging 0 5400 2944 2026-09-23 19:43:16 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:16 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.87503 2026-09-23 19:43:16 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.18372 2026-09-23 19:43:16 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:16 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:15.447749 End time: 2026-09-23 19:43:15.837789 2026-09-23 19:43:16 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:16 INFO statwt::::casa ########################################## 2026-09-23 19:43:16 INFO name:: No table opened. 2026-09-23 19:43:16 INFO name:: No table opened. .2026-09-23 19:43:16 INFO statwt::::casa ########################################## 2026-09-23 19:43:16 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:16 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' ) 2026-09-23 19:43:16 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:16 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:16 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 19:43:16 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. 2026-09-23 19:43:16 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:16 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:16 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:16 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:16 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:16 INFO StatWtTVI::summarizeFlagging 0 5400 2892 2026-09-23 19:43:16 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:16 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.86331 2026-09-23 19:43:16 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.05373 2026-09-23 19:43:16 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:17 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:16.095041 End time: 2026-09-23 19:43:16.506852 2026-09-23 19:43:17 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:17 INFO statwt::::casa ########################################## 2026-09-23 19:43:17 INFO statwt::::casa ########################################## 2026-09-23 19:43:17 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:17 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' ) 2026-09-23 19:43:17 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:17 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:17 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-09-23 19:43:17 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. 2026-09-23 19:43:17 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:17 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:17 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:17 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:17 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:17 INFO StatWtTVI::summarizeFlagging 0 5400 2782 2026-09-23 19:43:17 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:17 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.83245 2026-09-23 19:43:17 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.90358 2026-09-23 19:43:17 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:17 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:16.801926 End time: 2026-09-23 19:43:17.254636 2026-09-23 19:43:17 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:17 INFO statwt::::casa ########################################## 2026-09-23 19:43:18 INFO name:: No table opened. 2026-09-23 19:43:18 INFO name:: No table opened. .2026-09-23 19:43:18 INFO statwt::::casa ########################################## 2026-09-23 19:43:18 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:18 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' ) 2026-09-23 19:43:18 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:18 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:18 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:18 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. 2026-09-23 19:43:18 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:18 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:18 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:18 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:18 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:18 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-09-23 19:43:18 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:18 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-09-23 19:43:18 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-09-23 19:43:18 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:18 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:17.619634 End time: 2026-09-23 19:43:17.871283 2026-09-23 19:43:18 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:18 INFO statwt::::casa ########################################## 2026-09-23 19:43:18 INFO name:: No table opened. 2026-09-23 19:43:18 INFO name:: No table opened. .2026-09-23 19:43:18 INFO statwt::::casa ########################################## 2026-09-23 19:43:18 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:18 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' ) 2026-09-23 19:43:18 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:18 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:18 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:18 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. 2026-09-23 19:43:18 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:18 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:18 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:18 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:18 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:18 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-23 19:43:18 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:18 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-23 19:43:18 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-23 19:43:18 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:18 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:18.012139 End time: 2026-09-23 19:43:18.341811 2026-09-23 19:43:18 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:18 INFO statwt::::casa ########################################## 2026-09-23 19:43:18 INFO statwt::::casa ########################################## 2026-09-23 19:43:18 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:18 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' ) 2026-09-23 19:43:18 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:18 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:18 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 19:43:18 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. 2026-09-23 19:43:18 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:19 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:19 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:19 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:19 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:19 INFO StatWtTVI::summarizeFlagging 0 5399 2485 2026-09-23 19:43:19 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:19 INFO StatWtTVI::summarizeStats The mean of the computed weights is 9.49987 2026-09-23 19:43:19 INFO StatWtTVI::summarizeStats The variance of the computed weights is 19.7106 2026-09-23 19:43:19 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:19 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:18.381167 End time: 2026-09-23 19:43:18.843377 2026-09-23 19:43:19 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:19 INFO statwt::::casa ########################################## 2026-09-23 19:43:19 INFO statwt::::casa ########################################## 2026-09-23 19:43:19 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:19 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' ) 2026-09-23 19:43:19 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:19 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:19 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-09-23 19:43:19 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. 2026-09-23 19:43:19 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:19 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:19 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:19 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:19 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:19 INFO StatWtTVI::summarizeFlagging 0 5399 2320 2026-09-23 19:43:19 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:19 INFO StatWtTVI::summarizeStats The mean of the computed weights is 49.5864 2026-09-23 19:43:19 INFO StatWtTVI::summarizeStats The variance of the computed weights is 418.744 2026-09-23 19:43:19 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:19 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:18.879834 End time: 2026-09-23 19:43:19.412266 2026-09-23 19:43:19 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:19 INFO statwt::::casa ########################################## 2026-09-23 19:43:19 INFO statwt::::casa ########################################## 2026-09-23 19:43:19 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:19 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' ) 2026-09-23 19:43:19 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:19 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:19 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_4 2026-09-23 19:43:20 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. 2026-09-23 19:43:20 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:20 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:20 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:20 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:20 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:20 INFO StatWtTVI::summarizeFlagging 0 5399 4066 2026-09-23 19:43:20 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:20 INFO StatWtTVI::summarizeStats The mean of the computed weights is 5.55784 2026-09-23 19:43:20 INFO StatWtTVI::summarizeStats The variance of the computed weights is 22.2368 2026-09-23 19:43:20 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:20 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:19.469201 End time: 2026-09-23 19:43:19.942154 2026-09-23 19:43:20 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:20 INFO statwt::::casa ########################################## 2026-09-23 19:43:20 INFO statwt::::casa ########################################## 2026-09-23 19:43:20 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:20 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' ) 2026-09-23 19:43:20 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:20 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:20 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_5 2026-09-23 19:43:20 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. 2026-09-23 19:43:20 SEVERE ms::statwt Exception Reported: Unsupported value for 'statalg' at File: /source/casa6/casatools/src/code/mstransform/TVI/StatWtTVI.cc, line: 406 2026-09-23 19:43:20 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 2026-09-23 19:43:20 INFO statwt::::casa Traceback (most recent call last): 2026-09-23 19:43:20 INFO statwt::::casa+ File "/wheeldirectory/casa-CAS-14882-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/statwt.py", line 993, in __call__ 2026-09-23 19:43:20 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'] ) 2026-09-23 19:43:20 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-23 19:43:20 INFO statwt::::casa+ File "/wheeldirectory/casa-CAS-14882-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_statwt.py", line 56, in statwt 2026-09-23 19:43:20 INFO statwt::::casa+ rval = myms.statwt( 2026-09-23 19:43:20 INFO statwt::::casa+ ^^^^^^^^^^^^ 2026-09-23 19:43:20 INFO statwt::::casa+ File "/wheeldirectory/casa-CAS-14882-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/ms.py", line 1235, in statwt 2026-09-23 19:43:20 INFO statwt::::casa+ return self._swigobj.statwt(combine, timebin, slidetimebin, chanbin, minsamp, statalg, fence, center, lside, zscore, maxiter, fitspw, excludechans, wtrange, preview, datacolumn) 2026-09-23 19:43:20 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-23 19:43:20 INFO statwt::::casa+ File "/wheeldirectory/casa-CAS-14882-1-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/ms.py", line 2775, in statwt 2026-09-23 19:43:20 INFO statwt::::casa+ return _ms.ms_statwt(self, *args, **kwargs) 2026-09-23 19:43:20 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-23 19:43:20 INFO statwt::::casa+ RuntimeError: Unsupported value for 'statalg' at File: /source/casa6/casatools/src/code/mstransform/TVI/StatWtTVI.cc, line: 406 2026-09-23 19:43:20 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:19.977974 End time: 2026-09-23 19:43:20.021888 2026-09-23 19:43:20 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:20 INFO statwt::::casa ########################################## 2026-09-23 19:43:20 INFO name:: No table opened. 2026-09-23 19:43:20 INFO name:: No table opened. .2026-09-23 19:43:20 INFO statwt::::casa ########################################## 2026-09-23 19:43:20 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:20 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' ) 2026-09-23 19:43:20 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:20 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:20 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:20 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. 2026-09-23 19:43:20 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:20 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:20 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:20 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:20 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:20 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-09-23 19:43:20 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:20 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-09-23 19:43:20 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-09-23 19:43:20 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:20 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:20.058346 End time: 2026-09-23 19:43:20.353783 2026-09-23 19:43:20 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:20 INFO statwt::::casa ########################################## 2026-09-23 19:43:21 INFO statwt::::casa ########################################## 2026-09-23 19:43:21 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:21 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' ) 2026-09-23 19:43:21 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:21 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:21 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 19:43:21 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. 2026-09-23 19:43:21 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:21 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 19:43:21 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 19:43:21 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:21 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:21 INFO StatWtTVI::summarizeFlagging 0 2700 948 2026-09-23 19:43:21 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:21 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.50245 2026-09-23 19:43:21 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.046 2026-09-23 19:43:21 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:21 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:20.696768 End time: 2026-09-23 19:43:21.054035 2026-09-23 19:43:21 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:21 INFO statwt::::casa ########################################## 2026-09-23 19:43:21 INFO name:: No table opened. 2026-09-23 19:43:21 INFO name:: No table opened. .2026-09-23 19:43:21 INFO statwt::::casa ########################################## 2026-09-23 19:43:21 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:21 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' ) 2026-09-23 19:43:21 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:21 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:21 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 19:43:21 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. 2026-09-23 19:43:21 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:22 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 59.4848%. 2026-09-23 19:43:22 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 77.6818% 2026-09-23 19:43:22 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:22 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:22 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-09-23 19:43:22 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:22 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-09-23 19:43:22 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-09-23 19:43:22 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:22 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:21.354466 End time: 2026-09-23 19:43:21.638918 2026-09-23 19:43:22 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:22 INFO statwt::::casa ########################################## 2026-09-23 19:43:22 INFO statwt::::casa ########################################## 2026-09-23 19:43:22 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 19:43:22 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' ) 2026-09-23 19:43:22 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 19:43:22 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 19:43:22 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 19:43:22 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. 2026-09-23 19:43:22 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 19:43:22 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 59.4848%. 2026-09-23 19:43:22 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 77.6818% 2026-09-23 19:43:22 INFO StatWtTVI::summarizeFlagging 2026-09-23 19:43:22 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 19:43:22 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-09-23 19:43:22 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 19:43:22 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-09-23 19:43:22 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-09-23 19:43:22 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 19:43:22 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 19:43:21.917903 End time: 2026-09-23 19:43:22.199199 2026-09-23 19:43:22 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 19:43:22 INFO statwt::::casa ########################################## 2026-09-23 19:43:22 INFO name:: No table opened. 2026-09-23 19:43:22 INFO name:: No table opened. . ---------------------------------------------------------------------- Ran 23 tests in 32.766s OK Generating XML reports...