2026-09-23 22:28:28 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-09-23 22:28:28 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 22:28:28 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-09-23 22:28:28 INFO ::casa 2026-09-23 22:28:28 INFO ::casa config values 2026-09-23 22:28:28 INFO ::casa agg = False 2026-09-23 22:28:28 INFO ::casa cachedir = '/home/casatest/.casa' 2026-09-23 22:28:28 INFO ::casa casaconfig_verbose = 1 2026-09-23 22:28:28 INFO ::casa colors = 'Neutral' 2026-09-23 22:28:28 INFO ::casa data_auto_update = False 2026-09-23 22:28:28 INFO ::casa data_update_interval = 1 2026-09-23 22:28:28 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-09-23 22:28:28 INFO ::casa iplog = False 2026-09-23 22:28:28 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_statwt_casashell/ipython-20260923-222824.log' 2026-09-23 22:28:28 INFO ::casa log2term = True 2026-09-23 22:28:28 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_statwt_casashell/casa-20260923-222824.log' 2026-09-23 22:28:28 INFO ::casa measures_auto_update = False 2026-09-23 22:28:28 INFO ::casa measures_site = ['https://www.astron.nl/iers/', 'https://go.nrao.edu/iers/'] 2026-09-23 22:28:28 INFO ::casa measures_site_interval = 2 2026-09-23 22:28:28 INFO ::casa measures_update_interval = 1 2026-09-23 22:28:28 INFO ::casa measurespath = '/opt/casa/data/master' 2026-09-23 22:28:28 INFO ::casa nogui = False 2026-09-23 22:28:28 INFO ::casa nologfile = False 2026-09-23 22:28:28 INFO ::casa nologger = True 2026-09-23 22:28:28 INFO ::casa pipeline = False 2026-09-23 22:28:28 INFO ::casa skipnetworkcheck = False 2026-09-23 22:28:28 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-09-23 22:28:28 INFO ::casa user_site = False 2026-09-23 22:28:28 INFO ::casa 2026-09-23 22:28:28 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-09-23 22:28:28 INFO ::casa measures version is unknown, this is probably a legacy version not installed by casaconfig 2026-09-23 22:28:28 INFO ::casa 2026-09-23 22:28:28 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-09-23 22:28:28 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/09/10/15:15, 2026/08/11/00:00:00 2026-09-23 22:28:28 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/09/10/15:15, 2026/08/11/00:00:00 2026-09-23 22:28:28 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/09/23/15:15, 2026/12/22/00:00:00 2026-09-23 22:28:28 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 22:28:29 INFO statwt::::casa ########################################## 2026-09-23 22:28:29 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:29 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 22:28:29 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:29 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:29 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:29 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:28:29 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:30 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:30 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:30 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:30 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:30 INFO StatWtTVI::summarizeFlagging 0 5399 3913 2026-09-23 22:28:30 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-09-23 22:28:30 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.25577 2026-09-23 22:28:30 INFO StatWtTVI::summarizeStats The variance of the computed weights is 5.88042 2026-09-23 22:28:30 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:30 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:29.298746 End time: 2026-09-23 22:28:29.713819 2026-09-23 22:28:30 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:30 INFO statwt::::casa ########################################## 2026-09-23 22:28:30 INFO statwt::::casa ########################################## 2026-09-23 22:28:30 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:30 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 22:28:30 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:30 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:30 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 22:28:30 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 22:28:30 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:30 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:30 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:30 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:30 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:30 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-23 22:28:30 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:30 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-23 22:28:30 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-23 22:28:30 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:30 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:29.856203 End time: 2026-09-23 22:28:30.231526 2026-09-23 22:28:30 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:30 INFO statwt::::casa ########################################## 2026-09-23 22:28:30 INFO statwt::::casa ########################################## 2026-09-23 22:28:30 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:30 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 22:28:30 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:30 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:30 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-09-23 22:28:30 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 22:28:30 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:31 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:31 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:31 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:31 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:31 INFO StatWtTVI::summarizeFlagging 0 5399 3913 2026-09-23 22:28:31 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-09-23 22:28:31 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.25577 2026-09-23 22:28:31 INFO StatWtTVI::summarizeStats The variance of the computed weights is 5.88042 2026-09-23 22:28:31 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:31 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:30.410284 End time: 2026-09-23 22:28:30.768862 2026-09-23 22:28:31 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:31 INFO statwt::::casa ########################################## 2026-09-23 22:28:31 INFO statwt::::casa ########################################## 2026-09-23 22:28:31 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:31 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 22:28:31 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:31 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:31 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_4 2026-09-23 22:28:31 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 22:28:31 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:31 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:31 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:31 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:31 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:31 INFO StatWtTVI::summarizeFlagging 0 2700 1831 2026-09-23 22:28:31 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-09-23 22:28:31 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.60577 2026-09-23 22:28:31 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.70016 2026-09-23 22:28:31 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:31 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:30.896567 End time: 2026-09-23 22:28:31.217483 2026-09-23 22:28:31 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:31 INFO statwt::::casa ########################################## 2026-09-23 22:28:31 INFO statwt::::casa ########################################## 2026-09-23 22:28:31 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:31 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 22:28:31 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:31 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:31 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_5 2026-09-23 22:28:31 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 22:28:31 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:32 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:32 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:32 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:32 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:32 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-09-23 22:28:32 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:32 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-09-23 22:28:32 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-09-23 22:28:32 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:32 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:31.338537 End time: 2026-09-23 22:28:31.585233 2026-09-23 22:28:32 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:32 INFO statwt::::casa ########################################## 2026-09-23 22:28:32 INFO statwt::::casa ########################################## 2026-09-23 22:28:32 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:32 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 22:28:32 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:32 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:32 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_6 2026-09-23 22:28:32 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:28:32 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:32 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:32 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:32 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:32 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:32 INFO StatWtTVI::summarizeFlagging 0 2700 1831 2026-09-23 22:28:32 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-09-23 22:28:32 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.60577 2026-09-23 22:28:32 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.70016 2026-09-23 22:28:32 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:32 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:31.726682 End time: 2026-09-23 22:28:31.999511 2026-09-23 22:28:32 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:32 INFO statwt::::casa ########################################## 2026-09-23 22:28:32 INFO name:: No table opened. 2026-09-23 22:28:32 INFO name:: No table opened. .2026-09-23 22:28:32 INFO statwt::::casa ########################################## 2026-09-23 22:28:32 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:32 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 22:28:32 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:32 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:32 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:32 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:28:32 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:33 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:33 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:33 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:33 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:33 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-09-23 22:28:33 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:33 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-09-23 22:28:33 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-09-23 22:28:33 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:33 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:32.112503 End time: 2026-09-23 22:28:33.222925 2026-09-23 22:28:33 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:33 INFO statwt::::casa ########################################## 2026-09-23 22:28:33 INFO statwt::::casa ########################################## 2026-09-23 22:28:33 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:33 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 22:28:33 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:33 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:33 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 22:28:33 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:28:33 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:34 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:34 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:34 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:34 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:34 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-09-23 22:28:34 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:34 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-09-23 22:28:34 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-09-23 22:28:34 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:34 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:33.266951 End time: 2026-09-23 22:28:34.457701 2026-09-23 22:28:34 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:34 INFO statwt::::casa ########################################## 2026-09-23 22:28:35 INFO statwt::::casa ########################################## 2026-09-23 22:28:35 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:35 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 22:28:35 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:35 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:35 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-09-23 22:28:35 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 22:28:35 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-23 22:28:35 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-23 22:28:35 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:36 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:36 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:36 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:36 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:36 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-09-23 22:28:36 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:36 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-09-23 22:28:36 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-09-23 22:28:36 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:36 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:34.502561 End time: 2026-09-23 22:28:35.648997 2026-09-23 22:28:36 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:36 INFO statwt::::casa ########################################## 2026-09-23 22:28:36 INFO statwt::::casa ########################################## 2026-09-23 22:28:36 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:36 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 22:28:36 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:36 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:36 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_4 2026-09-23 22:28:36 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 22:28:36 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-23 22:28:36 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-23 22:28:36 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:37 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:37 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:37 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:37 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:37 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-09-23 22:28:37 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:37 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-09-23 22:28:37 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-09-23 22:28:37 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 22:28:37 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:35.695485 End time: 2026-09-23 22:28:36.889121 2026-09-23 22:28:37 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:37 INFO statwt::::casa ########################################## 2026-09-23 22:28:37 INFO statwt::::casa ########################################## 2026-09-23 22:28:37 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:37 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 22:28:37 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:37 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:37 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_5 2026-09-23 22:28:37 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 22:28:37 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:38 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:38 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:38 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:38 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:38 INFO StatWtTVI::summarizeFlagging 0 21600 11131 2026-09-23 22:28:38 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:38 INFO StatWtTVI::summarizeStats The mean of the computed weights is 14.0517 2026-09-23 22:28:38 INFO StatWtTVI::summarizeStats The variance of the computed weights is 92.3814 2026-09-23 22:28:38 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:38 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:36.928648 End time: 2026-09-23 22:28:37.551935 2026-09-23 22:28:38 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:38 INFO statwt::::casa ########################################## 2026-09-23 22:28:38 INFO statwt::::casa ########################################## 2026-09-23 22:28:38 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:38 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 22:28:38 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:38 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:38 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_6 2026-09-23 22:28:38 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 22:28:38 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:38 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:38 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:38 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:38 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:38 INFO StatWtTVI::summarizeFlagging 0 21600 11131 2026-09-23 22:28:38 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:38 INFO StatWtTVI::summarizeStats The mean of the computed weights is 14.0517 2026-09-23 22:28:38 INFO StatWtTVI::summarizeStats The variance of the computed weights is 92.3814 2026-09-23 22:28:38 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:38 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:37.590691 End time: 2026-09-23 22:28:38.293652 2026-09-23 22:28:38 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:38 INFO statwt::::casa ########################################## 2026-09-23 22:28:38 INFO statwt::::casa ########################################## 2026-09-23 22:28:38 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:38 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 22:28:38 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:38 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:38 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_7 2026-09-23 22:28:38 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 22:28:38 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-23 22:28:38 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-23 22:28:39 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:39 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:39 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:39 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:39 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:39 INFO StatWtTVI::summarizeFlagging 0 21600 11131 2026-09-23 22:28:39 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:39 INFO StatWtTVI::summarizeStats The mean of the computed weights is 14.0517 2026-09-23 22:28:39 INFO StatWtTVI::summarizeStats The variance of the computed weights is 92.3814 2026-09-23 22:28:39 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:39 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:38.360436 End time: 2026-09-23 22:28:39.095360 2026-09-23 22:28:39 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:39 INFO statwt::::casa ########################################## 2026-09-23 22:28:39 INFO name:: No table opened. 2026-09-23 22:28:39 INFO name:: No table opened. .2026-09-23 22:28:41 INFO statwt::::casa ########################################## 2026-09-23 22:28:41 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:41 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 22:28:41 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:41 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:41 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:41 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 22:28:41 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-23 22:28:41 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-23 22:28:42 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-23 22:28:43 INFO StatWtTVI::summarizeFlagging Originally, 28.7129% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:43 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 28.7129% 2026-09-23 22:28:43 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:43 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:43 INFO StatWtTVI::summarizeFlagging 0 356 4 2026-09-23 22:28:43 INFO StatWtTVI::summarizeFlagging 1 288 18 2026-09-23 22:28:43 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15;SPW 1, channels 0~15 2026-09-23 22:28:43 INFO StatWtTVI::summarizeStats The mean of the computed weights is 34.8553 2026-09-23 22:28:43 INFO StatWtTVI::summarizeStats The variance of the computed weights is 104.361 2026-09-23 22:28:43 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:43 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:40.841464 End time: 2026-09-23 22:28:43.103014 2026-09-23 22:28:43 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:43 INFO statwt::::casa ########################################## 2026-09-23 22:28:44 INFO statwt::::casa ########################################## 2026-09-23 22:28:44 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:44 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 22:28:44 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:44 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:44 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:44 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 22:28:44 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-09-23 22:28:44 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-09-23 22:28:44 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 22:28:44 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 22:28:44 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 22:28:44 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 22:28:44 INFO statwt::::casa Traceback (most recent call last): 2026-09-23 22:28:44 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 22:28:44 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 22:28:44 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-23 22:28:44 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 22:28:44 INFO statwt::::casa+ rval = myms.statwt( 2026-09-23 22:28:44 INFO statwt::::casa+ ^^^^^^^^^^^^ 2026-09-23 22:28:44 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 22:28:44 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 22:28:44 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-23 22:28:44 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 22:28:44 INFO statwt::::casa+ return _ms.ms_statwt(self, *args, **kwargs) 2026-09-23 22:28:44 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-23 22:28:44 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 22:28:44 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 22:28:44 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:43.607114 End time: 2026-09-23 22:28:44.145853 2026-09-23 22:28:44 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:44 INFO statwt::::casa ########################################## 2026-09-23 22:28:44 INFO statwt::::casa ########################################## 2026-09-23 22:28:44 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:44 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 22:28:44 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:44 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:44 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 22:28:44 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 22:28:44 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-23 22:28:45 INFO StatWtTVI::summarizeFlagging Originally, 15.3455% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:45 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 15.3455% 2026-09-23 22:28:45 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:45 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:45 INFO StatWtTVI::summarizeFlagging 0 356 4 2026-09-23 22:28:45 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15 2026-09-23 22:28:45 INFO StatWtTVI::summarizeStats The mean of the computed weights is 38.2032 2026-09-23 22:28:45 INFO StatWtTVI::summarizeStats The variance of the computed weights is 83.0845 2026-09-23 22:28:45 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:45 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:44.148381 End time: 2026-09-23 22:28:44.915759 2026-09-23 22:28:45 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:45 INFO statwt::::casa ########################################## 2026-09-23 22:28:45 INFO name:: No table opened. 2026-09-23 22:28:45 INFO name:: No table opened. .2026-09-23 22:28:45 INFO statwt::::casa ########################################## 2026-09-23 22:28:45 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:45 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 22:28:45 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:45 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:45 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:45 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 22:28:45 INFO StatWtTVI::StatWtTVI Using DATA to compute weights 2026-09-23 22:28:45 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:45 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:45 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:45 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:45 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-09-23 22:28:45 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:45 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-09-23 22:28:45 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-09-23 22:28:45 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:45 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:45.032632 End time: 2026-09-23 22:28:45.308713 2026-09-23 22:28:45 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:45 INFO statwt::::casa ########################################## 2026-09-23 22:28:45 INFO name:: No table opened. 2026-09-23 22:28:45 INFO name:: No table opened. .2026-09-23 22:28:46 INFO statwt::::casa ########################################## 2026-09-23 22:28:46 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:46 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 22:28:46 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:46 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:46 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:46 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:28:46 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:46 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:46 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:46 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:46 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:46 INFO StatWtTVI::summarizeFlagging 0 315 124 2026-09-23 22:28:46 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:46 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.46865 2026-09-23 22:28:46 INFO StatWtTVI::summarizeStats The variance of the computed weights is 0.933388 2026-09-23 22:28:46 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:46 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:45.516244 End time: 2026-09-23 22:28:45.788491 2026-09-23 22:28:46 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:46 INFO statwt::::casa ########################################## 2026-09-23 22:28:46 INFO statwt::::casa ########################################## 2026-09-23 22:28:46 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:46 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 22:28:46 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:46 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:46 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 22:28:46 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:28:46 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:46 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:46 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:46 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:46 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:46 INFO StatWtTVI::summarizeFlagging 0 315 124 2026-09-23 22:28:46 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:46 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.46865 2026-09-23 22:28:46 INFO StatWtTVI::summarizeStats The variance of the computed weights is 0.933388 2026-09-23 22:28:46 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:46 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:45.943027 End time: 2026-09-23 22:28:46.284460 2026-09-23 22:28:46 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:46 INFO statwt::::casa ########################################## 2026-09-23 22:28:46 INFO name:: No table opened. 2026-09-23 22:28:46 INFO name:: No table opened. .2026-09-23 22:28:46 INFO statwt::::casa ########################################## 2026-09-23 22:28:46 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:46 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 22:28:46 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:46 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:46 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:46 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:28:46 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:47 INFO StatWtTVI::summarizeFlagging Originally, 18.1818% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:47 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.1818% 2026-09-23 22:28:47 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:47 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:47 INFO StatWtTVI::summarizeFlagging 0 1530 1019 2026-09-23 22:28:47 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:47 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.57858 2026-09-23 22:28:47 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.8497 2026-09-23 22:28:47 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:47 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:46.429432 End time: 2026-09-23 22:28:46.597824 2026-09-23 22:28:47 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:47 INFO statwt::::casa ########################################## 2026-09-23 22:28:48 INFO statwt::::casa ########################################## 2026-09-23 22:28:48 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:48 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 22:28:48 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:48 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:48 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 22:28:48 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:28:48 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:48 INFO StatWtTVI::summarizeFlagging Originally, 18.1818% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:48 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.1818% 2026-09-23 22:28:48 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:48 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:48 INFO StatWtTVI::summarizeFlagging 0 1530 1019 2026-09-23 22:28:48 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:48 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.57858 2026-09-23 22:28:48 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.8497 2026-09-23 22:28:48 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:48 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:47.804145 End time: 2026-09-23 22:28:47.977298 2026-09-23 22:28:48 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:48 INFO statwt::::casa ########################################## 2026-09-23 22:28:48 INFO name:: No table opened. 2026-09-23 22:28:48 INFO name:: No table opened. .2026-09-23 22:28:48 INFO statwt::::casa ########################################## 2026-09-23 22:28:48 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:48 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 22:28:48 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:48 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:48 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:48 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:28:48 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:48 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:48 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:48 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:48 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:48 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-09-23 22:28:48 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:48 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-09-23 22:28:48 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-09-23 22:28:48 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:48 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:48.091026 End time: 2026-09-23 22:28:48.401523 2026-09-23 22:28:48 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:48 INFO statwt::::casa ########################################## 2026-09-23 22:28:48 INFO statwt::::casa ########################################## 2026-09-23 22:28:48 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:48 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 22:28:48 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:48 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:48 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 22:28:49 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:28:49 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:49 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0.0151515%. 2026-09-23 22:28:49 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.2121% 2026-09-23 22:28:49 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:49 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:49 INFO StatWtTVI::summarizeFlagging 0 2699 1793 2026-09-23 22:28:49 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:49 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00706 2026-09-23 22:28:49 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.34301 2026-09-23 22:28:49 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:49 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:48.473321 End time: 2026-09-23 22:28:48.735843 2026-09-23 22:28:49 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:49 INFO statwt::::casa ########################################## 2026-09-23 22:28:49 INFO name:: No table opened. 2026-09-23 22:28:49 INFO name:: No table opened. .2026-09-23 22:28:49 INFO statwt::::casa ########################################## 2026-09-23 22:28:49 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:49 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 22:28:49 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:49 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:49 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:49 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 22:28:49 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-23 22:28:49 INFO StatWtTVI::summarizeFlagging Originally, 28.7129% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:49 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 28.7129% 2026-09-23 22:28:49 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:49 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:49 INFO StatWtTVI::summarizeFlagging 0 3936 1945 2026-09-23 22:28:49 INFO StatWtTVI::summarizeFlagging 1 3888 2344 2026-09-23 22:28:49 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15;SPW 1, channels 0~15 2026-09-23 22:28:49 INFO StatWtTVI::summarizeStats The mean of the computed weights is 40.6606 2026-09-23 22:28:49 INFO StatWtTVI::summarizeStats The variance of the computed weights is 372.347 2026-09-23 22:28:49 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:49 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:48.888606 End time: 2026-09-23 22:28:49.216862 2026-09-23 22:28:49 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:49 INFO statwt::::casa ########################################## 2026-09-23 22:28:49 INFO statwt::::casa ########################################## 2026-09-23 22:28:49 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:49 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 22:28:49 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:49 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:49 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:49 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 22:28:49 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-23 22:28:50 INFO StatWtTVI::summarizeFlagging Originally, 28.7129% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:50 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 28.7129% 2026-09-23 22:28:50 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:50 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:50 INFO StatWtTVI::summarizeFlagging 0 360 13 2026-09-23 22:28:50 INFO StatWtTVI::summarizeFlagging 1 360 22 2026-09-23 22:28:50 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15;SPW 1, channels 0~15 2026-09-23 22:28:50 INFO StatWtTVI::summarizeStats The mean of the computed weights is 31.8048 2026-09-23 22:28:50 INFO StatWtTVI::summarizeStats The variance of the computed weights is 45.3775 2026-09-23 22:28:50 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:50 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:49.419362 End time: 2026-09-23 22:28:49.792975 2026-09-23 22:28:50 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:50 INFO statwt::::casa ########################################## 2026-09-23 22:28:50 INFO name:: No table opened. 2026-09-23 22:28:50 INFO name:: No table opened. .2026-09-23 22:28:50 INFO statwt::::casa ########################################## 2026-09-23 22:28:50 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:50 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 22:28:50 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:50 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:50 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:50 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:28:50 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:50 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:50 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:50 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:50 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:50 INFO StatWtTVI::summarizeFlagging 0 270 89 2026-09-23 22:28:50 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:50 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.46103 2026-09-23 22:28:50 INFO StatWtTVI::summarizeStats The variance of the computed weights is 0.913911 2026-09-23 22:28:50 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:28:50 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:49.903430 End time: 2026-09-23 22:28:50.145657 2026-09-23 22:28:50 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:50 INFO statwt::::casa ########################################## 2026-09-23 22:28:50 INFO name:: No table opened. 2026-09-23 22:28:50 INFO name:: No table opened. .2026-09-23 22:28:50 INFO statwt::::casa ########################################## 2026-09-23 22:28:50 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:50 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 22:28:50 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:50 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:50 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:50 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:28:50 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging 0 45 45 2026-09-23 22:28:51 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:51 INFO StatWtTVI::summarizeStats The mean of the computed weights is 0.0597345 2026-09-23 22:28:51 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.00596e-06 2026-09-23 22:28:51 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 22:28:51 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:50.334447 End time: 2026-09-23 22:28:50.561494 2026-09-23 22:28:51 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:51 INFO statwt::::casa ########################################## 2026-09-23 22:28:51 INFO statwt::::casa ########################################## 2026-09-23 22:28:51 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:51 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 22:28:51 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:51 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:51 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 22:28:51 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 22:28:51 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging 0 45 45 2026-09-23 22:28:51 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:51 INFO StatWtTVI::summarizeStats The mean of the computed weights is 0.0597345 2026-09-23 22:28:51 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.00596e-06 2026-09-23 22:28:51 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 22:28:51 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:50.740271 End time: 2026-09-23 22:28:50.988389 2026-09-23 22:28:51 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:51 INFO statwt::::casa ########################################## 2026-09-23 22:28:51 INFO name:: No table opened. 2026-09-23 22:28:51 INFO name:: No table opened. .2026-09-23 22:28:51 INFO statwt::::casa ########################################## 2026-09-23 22:28:51 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:51 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 22:28:51 INFO statwt::::casa Running in preview mode. No flags will be modified, so existing flags will not be backed up. 2026-09-23 22:28:51 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:51 INFO StatWt::writeWeights RAN IN PREVIEW MODE. NO WEIGHTS NOR FLAGS WERE CHANGED. 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 59.4848%. 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 77.6818% 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:51 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-09-23 22:28:51 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:51 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-09-23 22:28:51 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-09-23 22:28:51 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 22:28:51 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:51.133868 End time: 2026-09-23 22:28:51.303371 2026-09-23 22:28:51 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:51 INFO statwt::::casa ########################################## 2026-09-23 22:28:51 INFO name:: No table opened. 2026-09-23 22:28:51 INFO name:: No table opened. .2026-09-23 22:28:51 INFO statwt::::casa ########################################## 2026-09-23 22:28:51 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:51 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 22:28:51 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:51 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:51 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:51 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 22:28:51 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA - MODEL_DATA to compute weights 2026-09-23 22:28:52 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:52 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:52 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:52 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:52 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-23 22:28:52 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:52 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-23 22:28:52 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-23 22:28:52 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 22:28:52 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:51.370531 End time: 2026-09-23 22:28:51.724609 2026-09-23 22:28:52 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:52 INFO statwt::::casa ########################################## 2026-09-23 22:28:52 INFO name:: No table opened. 2026-09-23 22:28:52 INFO name:: No table opened. .2026-09-23 22:28:52 INFO statwt::::casa ########################################## 2026-09-23 22:28:52 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:52 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 22:28:52 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:52 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:52 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:52 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 22:28:52 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-23 22:28:52 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:52 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:52 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:52 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:52 INFO StatWtTVI::summarizeFlagging 0 5399 2389 2026-09-23 22:28:52 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:52 INFO StatWtTVI::summarizeStats The mean of the computed weights is 1533.27 2026-09-23 22:28:52 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.48377e+06 2026-09-23 22:28:52 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 22:28:52 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:51.900287 End time: 2026-09-23 22:28:52.265186 2026-09-23 22:28:52 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:52 INFO statwt::::casa ########################################## 2026-09-23 22:28:53 INFO name:: No table opened. 2026-09-23 22:28:53 INFO name:: No table opened. .2026-09-23 22:28:53 INFO statwt::::casa ########################################## 2026-09-23 22:28:53 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:53 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 22:28:53 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:53 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:53 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:53 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 22:28:53 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-09-23 22:28:53 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:53 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:53 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:53 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:53 INFO StatWtTVI::summarizeFlagging 0 5399 2389 2026-09-23 22:28:53 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:53 INFO StatWtTVI::summarizeStats The mean of the computed weights is 1533.27 2026-09-23 22:28:53 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.48377e+06 2026-09-23 22:28:53 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 22:28:53 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:52.680276 End time: 2026-09-23 22:28:53.029789 2026-09-23 22:28:53 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:53 INFO statwt::::casa ########################################## 2026-09-23 22:28:53 INFO name:: No table opened. 2026-09-23 22:28:53 INFO name:: No table opened. .2026-09-23 22:28:53 INFO statwt::::casa ########################################## 2026-09-23 22:28:53 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:53 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 22:28:53 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:53 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:53 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:53 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 22:28:53 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA - MODEL_DATA to compute weights 2026-09-23 22:28:54 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:54 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:54 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:54 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:54 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-23 22:28:54 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:54 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-23 22:28:54 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-23 22:28:54 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 22:28:54 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:53.413730 End time: 2026-09-23 22:28:53.816781 2026-09-23 22:28:54 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:54 INFO statwt::::casa ########################################## 2026-09-23 22:28:54 INFO name:: No table opened. 2026-09-23 22:28:54 INFO name:: No table opened. .2026-09-23 22:28:54 INFO statwt::::casa ########################################## 2026-09-23 22:28:54 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:54 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 22:28:54 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:54 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:54 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:54 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 22:28:54 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:55 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:55 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:55 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:55 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:55 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-23 22:28:55 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:55 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-23 22:28:55 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-23 22:28:55 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 22:28:55 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:54.182939 End time: 2026-09-23 22:28:54.571224 2026-09-23 22:28:55 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:55 INFO statwt::::casa ########################################## 2026-09-23 22:28:55 INFO name:: No table opened. 2026-09-23 22:28:55 INFO name:: No table opened. .2026-09-23 22:28:55 INFO statwt::::casa ########################################## 2026-09-23 22:28:55 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:55 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 22:28:55 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:55 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:55 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:55 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 22:28:55 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:55 INFO StatWtTVI::summarizeFlagging Originally, 18.1818% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:55 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.1818% 2026-09-23 22:28:55 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:55 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:55 INFO StatWtTVI::summarizeFlagging 0 135 88 2026-09-23 22:28:55 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:55 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.676 2026-09-23 22:28:55 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.37272 2026-09-23 22:28:55 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 22:28:55 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:54.636169 End time: 2026-09-23 22:28:54.733648 2026-09-23 22:28:55 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:55 INFO statwt::::casa ########################################## 2026-09-23 22:28:55 INFO name:: No table opened. 2026-09-23 22:28:55 INFO name:: No table opened. .2026-09-23 22:28:55 INFO statwt::::casa ########################################## 2026-09-23 22:28:55 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:55 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 22:28:55 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:55 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:55 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:55 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 22:28:55 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:56 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:56 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:56 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:56 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:56 INFO StatWtTVI::summarizeFlagging 0 5400 2944 2026-09-23 22:28:56 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:56 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.87503 2026-09-23 22:28:56 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.18372 2026-09-23 22:28:56 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 22:28:56 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:55.194109 End time: 2026-09-23 22:28:55.638074 2026-09-23 22:28:56 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:56 INFO statwt::::casa ########################################## 2026-09-23 22:28:56 INFO name:: No table opened. 2026-09-23 22:28:56 INFO name:: No table opened. .2026-09-23 22:28:56 INFO statwt::::casa ########################################## 2026-09-23 22:28:56 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:56 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 22:28:56 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:56 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:56 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 22:28:56 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 22:28:56 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:56 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:56 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:56 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:56 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:56 INFO StatWtTVI::summarizeFlagging 0 5400 2892 2026-09-23 22:28:56 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:56 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.86331 2026-09-23 22:28:56 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.05373 2026-09-23 22:28:56 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 22:28:56 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:56.006305 End time: 2026-09-23 22:28:56.412406 2026-09-23 22:28:56 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:56 INFO statwt::::casa ########################################## 2026-09-23 22:28:57 INFO statwt::::casa ########################################## 2026-09-23 22:28:57 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:57 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 22:28:57 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:57 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:57 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-09-23 22:28:57 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 22:28:57 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:57 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:57 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:57 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:57 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:57 INFO StatWtTVI::summarizeFlagging 0 5400 2782 2026-09-23 22:28:57 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:57 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.83245 2026-09-23 22:28:57 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.90358 2026-09-23 22:28:57 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 22:28:57 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:56.718968 End time: 2026-09-23 22:28:57.097938 2026-09-23 22:28:57 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:57 INFO statwt::::casa ########################################## 2026-09-23 22:28:58 INFO name:: No table opened. 2026-09-23 22:28:58 INFO name:: No table opened. .2026-09-23 22:28:58 INFO statwt::::casa ########################################## 2026-09-23 22:28:58 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:58 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 22:28:58 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:58 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:58 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:58 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 22:28:58 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:58 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:58 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:58 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:58 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:58 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-09-23 22:28:58 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:58 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-09-23 22:28:58 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-09-23 22:28:58 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 22:28:58 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:57.542342 End time: 2026-09-23 22:28:57.819906 2026-09-23 22:28:58 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:58 INFO statwt::::casa ########################################## 2026-09-23 22:28:58 INFO name:: No table opened. 2026-09-23 22:28:58 INFO name:: No table opened. .2026-09-23 22:28:58 INFO statwt::::casa ########################################## 2026-09-23 22:28:58 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:58 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 22:28:58 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:58 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:58 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:28:58 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 22:28:58 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:58 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:58 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:58 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:58 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:58 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-09-23 22:28:58 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:58 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-09-23 22:28:58 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-09-23 22:28:58 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 22:28:58 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:57.945359 End time: 2026-09-23 22:28:58.316676 2026-09-23 22:28:58 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:58 INFO statwt::::casa ########################################## 2026-09-23 22:28:58 INFO statwt::::casa ########################################## 2026-09-23 22:28:58 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:58 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 22:28:58 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:58 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:58 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 22:28:58 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 22:28:58 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:59 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:59 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:59 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:59 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:59 INFO StatWtTVI::summarizeFlagging 0 5399 2485 2026-09-23 22:28:59 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:59 INFO StatWtTVI::summarizeStats The mean of the computed weights is 9.49987 2026-09-23 22:28:59 INFO StatWtTVI::summarizeStats The variance of the computed weights is 19.7106 2026-09-23 22:28:59 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 22:28:59 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:58.355850 End time: 2026-09-23 22:28:58.825792 2026-09-23 22:28:59 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:59 INFO statwt::::casa ########################################## 2026-09-23 22:28:59 INFO statwt::::casa ########################################## 2026-09-23 22:28:59 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:59 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 22:28:59 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:59 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:59 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-09-23 22:28:59 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 22:28:59 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:28:59 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:28:59 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:28:59 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:28:59 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:28:59 INFO StatWtTVI::summarizeFlagging 0 5399 2320 2026-09-23 22:28:59 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:28:59 INFO StatWtTVI::summarizeStats The mean of the computed weights is 49.5864 2026-09-23 22:28:59 INFO StatWtTVI::summarizeStats The variance of the computed weights is 418.744 2026-09-23 22:28:59 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 22:28:59 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:58.861422 End time: 2026-09-23 22:28:59.311031 2026-09-23 22:28:59 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:28:59 INFO statwt::::casa ########################################## 2026-09-23 22:28:59 INFO statwt::::casa ########################################## 2026-09-23 22:28:59 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:28:59 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 22:28:59 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:28:59 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:28:59 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_4 2026-09-23 22:28:59 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 22:28:59 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:29:00 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:29:00 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:29:00 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:29:00 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:29:00 INFO StatWtTVI::summarizeFlagging 0 5399 4066 2026-09-23 22:29:00 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:29:00 INFO StatWtTVI::summarizeStats The mean of the computed weights is 5.55784 2026-09-23 22:29:00 INFO StatWtTVI::summarizeStats The variance of the computed weights is 22.2368 2026-09-23 22:29:00 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 22:29:00 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:59.346705 End time: 2026-09-23 22:28:59.837865 2026-09-23 22:29:00 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:29:00 INFO statwt::::casa ########################################## 2026-09-23 22:29:00 INFO statwt::::casa ########################################## 2026-09-23 22:29:00 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:29:00 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 22:29:00 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:29:00 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:29:00 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_5 2026-09-23 22:29:00 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 22:29:00 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 22:29:00 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 22:29:00 INFO statwt::::casa Traceback (most recent call last): 2026-09-23 22:29:00 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 22:29:00 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 22:29:00 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-23 22:29:00 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 22:29:00 INFO statwt::::casa+ rval = myms.statwt( 2026-09-23 22:29:00 INFO statwt::::casa+ ^^^^^^^^^^^^ 2026-09-23 22:29:00 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 22:29:00 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 22:29:00 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-23 22:29:00 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 22:29:00 INFO statwt::::casa+ return _ms.ms_statwt(self, *args, **kwargs) 2026-09-23 22:29:00 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-09-23 22:29:00 INFO statwt::::casa+ RuntimeError: Unsupported value for 'statalg' at File: /source/casa6/casatools/src/code/mstransform/TVI/StatWtTVI.cc, line: 406 2026-09-23 22:29:00 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:59.873511 End time: 2026-09-23 22:28:59.927291 2026-09-23 22:29:00 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:29:00 INFO statwt::::casa ########################################## 2026-09-23 22:29:00 INFO name:: No table opened. 2026-09-23 22:29:00 INFO name:: No table opened. .2026-09-23 22:29:00 INFO statwt::::casa ########################################## 2026-09-23 22:29:00 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:29:00 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 22:29:00 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:29:00 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:29:00 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:29:00 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 22:29:00 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:29:00 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:29:00 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:29:00 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:29:00 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:29:00 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-09-23 22:29:00 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:29:00 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-09-23 22:29:00 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-09-23 22:29:00 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 22:29:00 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:28:59.963787 End time: 2026-09-23 22:29:00.222300 2026-09-23 22:29:00 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:29:00 INFO statwt::::casa ########################################## 2026-09-23 22:29:01 INFO statwt::::casa ########################################## 2026-09-23 22:29:01 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:29:01 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 22:29:01 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:29:01 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:29:01 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 22:29:01 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:29:01 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:29:01 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-09-23 22:29:01 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-09-23 22:29:01 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:29:01 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:29:01 INFO StatWtTVI::summarizeFlagging 0 2700 948 2026-09-23 22:29:01 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:29:01 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.50245 2026-09-23 22:29:01 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.046 2026-09-23 22:29:01 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 22:29:01 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:29:00.502625 End time: 2026-09-23 22:29:00.849272 2026-09-23 22:29:01 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:29:01 INFO statwt::::casa ########################################## 2026-09-23 22:29:01 INFO name:: No table opened. 2026-09-23 22:29:01 INFO name:: No table opened. .2026-09-23 22:29:01 INFO statwt::::casa ########################################## 2026-09-23 22:29:01 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:29:01 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 22:29:01 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:29:01 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:29:01 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-09-23 22:29:01 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:29:01 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:29:01 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 59.4848%. 2026-09-23 22:29:01 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 77.6818% 2026-09-23 22:29:01 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:29:01 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:29:01 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-09-23 22:29:01 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:29:01 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-09-23 22:29:01 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-09-23 22:29:01 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 22:29:01 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:29:00.994253 End time: 2026-09-23 22:29:01.250136 2026-09-23 22:29:01 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:29:01 INFO statwt::::casa ########################################## 2026-09-23 22:29:02 INFO statwt::::casa ########################################## 2026-09-23 22:29:02 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-09-23 22:29:02 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 22:29:02 INFO statwt::::casa Backup original flags before applying new flags 2026-09-23 22:29:02 INFO AgentFlagger::open Table type is Measurement Set 2026-09-23 22:29:02 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-09-23 22:29:02 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-09-23 22:29:02 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-09-23 22:29:02 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 59.4848%. 2026-09-23 22:29:02 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 77.6818% 2026-09-23 22:29:02 INFO StatWtTVI::summarizeFlagging 2026-09-23 22:29:02 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-09-23 22:29:02 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-09-23 22:29:02 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-09-23 22:29:02 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-09-23 22:29:02 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-09-23 22:29:02 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-09-23 22:29:02 INFO statwt::::casa Task statwt complete. Start time: 2026-09-23 22:29:01.865894 End time: 2026-09-23 22:29:02.123820 2026-09-23 22:29:02 INFO statwt::::casa ##### End Task: statwt ##### 2026-09-23 22:29:02 INFO statwt::::casa ########################################## 2026-09-23 22:29:02 INFO name:: No table opened. 2026-09-23 22:29:02 INFO name:: No table opened. . ---------------------------------------------------------------------- Ran 23 tests in 33.942s OK Generating XML reports...