2026-02-05 18:52:07 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-02-05 18:52:07 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.5-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-02-05 18:52:07 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-02-05 18:52:07 INFO ::casa 2026-02-05 18:52:07 INFO ::casa config values 2026-02-05 18:52:07 INFO ::casa agg = False 2026-02-05 18:52:07 INFO ::casa cachedir = '/home/casatest/.casa' 2026-02-05 18:52:07 INFO ::casa casaconfig_verbose = 1 2026-02-05 18:52:07 INFO ::casa colors = 'Neutral' 2026-02-05 18:52:07 INFO ::casa data_auto_update = False 2026-02-05 18:52:07 INFO ::casa data_update_interval = 1 2026-02-05 18:52:07 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-02-05 18:52:07 INFO ::casa iplog = False 2026-02-05 18:52:07 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_statwt_casashell/ipython-20260205-185203.log' 2026-02-05 18:52:07 INFO ::casa log2term = True 2026-02-05 18:52:07 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_statwt_casashell/casa-20260205-185203.log' 2026-02-05 18:52:07 INFO ::casa measures_auto_update = False 2026-02-05 18:52:07 INFO ::casa measures_site = ['https://www.astron.nl/iers/', 'https://go.nrao.edu/iers/'] 2026-02-05 18:52:07 INFO ::casa measures_site_interval = 2 2026-02-05 18:52:07 INFO ::casa measures_update_interval = 1 2026-02-05 18:52:07 INFO ::casa measurespath = '/opt/casa/data/master' 2026-02-05 18:52:07 INFO ::casa nogui = False 2026-02-05 18:52:07 INFO ::casa nologfile = False 2026-02-05 18:52:07 INFO ::casa nologger = True 2026-02-05 18:52:07 INFO ::casa pipeline = False 2026-02-05 18:52:07 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-02-05 18:52:07 INFO ::casa user_site = False 2026-02-05 18:52:07 INFO ::casa 2026-02-05 18:52:07 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-02-05 18:52:07 INFO ::casa measures version : WSRT_Measures_20211102-160001.ztar 2026-02-05 18:52:07 INFO ::casa 2026-02-05 18:52:07 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-02-05 18:52:07 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/01/19/15:15, 2025/12/20/00:00:00 2026-02-05 18:52:07 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/01/19/15:15, 2025/12/20/00:00:00 2026-02-05 18:52:07 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/02/04/15:15, 2026/05/05/00:00:00 2026-02-05 18:52:07 INFO ::casa TAI_UTC (version date, last date in table (UTC)): 2026/01/22/15:15, 2017/01/01/00:00:00 Running tests... ---------------------------------------------------------------------- Using user configuration file /home/casatest/.casa/config.py No event loop hook running. Using matplotlib backend: agg CASA 6.7.5.2 -- Common Astronomy Software Applications [6.7.5.2] 2026-02-05 18:52:08 INFO statwt::::casa ########################################## 2026-02-05 18:52:08 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:08 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' ) 2026-02-05 18:52:08 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:08 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:08 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:08 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:09 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:09 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:09 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:09 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:09 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:09 INFO StatWtTVI::summarizeFlagging 0 5399 3913 2026-02-05 18:52:09 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-02-05 18:52:09 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.25577 2026-02-05 18:52:09 INFO StatWtTVI::summarizeStats The variance of the computed weights is 5.88042 2026-02-05 18:52:09 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:09 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:08.422235 End time: 2026-02-05 18:52:08.847814 2026-02-05 18:52:09 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:09 INFO statwt::::casa ########################################## 2026-02-05 18:52:09 INFO statwt::::casa ########################################## 2026-02-05 18:52:09 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:09 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' ) 2026-02-05 18:52:09 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:09 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:09 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-02-05 18:52:09 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:09 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:10 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:10 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:10 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:10 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:10 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-02-05 18:52:10 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:10 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-02-05 18:52:10 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-02-05 18:52:10 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:10 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:09.299525 End time: 2026-02-05 18:52:09.643395 2026-02-05 18:52:10 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:10 INFO statwt::::casa ########################################## 2026-02-05 18:52:10 INFO statwt::::casa ########################################## 2026-02-05 18:52:10 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:10 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' ) 2026-02-05 18:52:10 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:10 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:10 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-02-05 18:52:10 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:10 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:10 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:10 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:10 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:10 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:10 INFO StatWtTVI::summarizeFlagging 0 5399 3913 2026-02-05 18:52:10 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-02-05 18:52:10 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.25577 2026-02-05 18:52:10 INFO StatWtTVI::summarizeStats The variance of the computed weights is 5.88042 2026-02-05 18:52:10 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:10 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:10.015093 End time: 2026-02-05 18:52:10.488688 2026-02-05 18:52:10 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:10 INFO statwt::::casa ########################################## 2026-02-05 18:52:11 INFO statwt::::casa ########################################## 2026-02-05 18:52:11 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:11 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' ) 2026-02-05 18:52:11 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:11 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:11 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_4 2026-02-05 18:52:11 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:11 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:11 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:11 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:11 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:11 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:11 INFO StatWtTVI::summarizeFlagging 0 2700 1831 2026-02-05 18:52:11 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-02-05 18:52:11 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.60577 2026-02-05 18:52:11 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.70016 2026-02-05 18:52:11 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:11 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:10.618950 End time: 2026-02-05 18:52:10.927009 2026-02-05 18:52:11 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:11 INFO statwt::::casa ########################################## 2026-02-05 18:52:11 INFO statwt::::casa ########################################## 2026-02-05 18:52:11 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:11 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' ) 2026-02-05 18:52:11 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:11 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:11 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_5 2026-02-05 18:52:11 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:11 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:12 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:12 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:12 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:12 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:12 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-02-05 18:52:12 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:12 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-02-05 18:52:12 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-02-05 18:52:12 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:12 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:11.265298 End time: 2026-02-05 18:52:11.600055 2026-02-05 18:52:12 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:12 INFO statwt::::casa ########################################## 2026-02-05 18:52:12 INFO statwt::::casa ########################################## 2026-02-05 18:52:12 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:12 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' ) 2026-02-05 18:52:12 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:12 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:12 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_6 2026-02-05 18:52:12 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:12 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:12 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:12 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:12 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:12 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:12 INFO StatWtTVI::summarizeFlagging 0 2700 1831 2026-02-05 18:52:12 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~9, 21~62 2026-02-05 18:52:12 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.60577 2026-02-05 18:52:12 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.70016 2026-02-05 18:52:12 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:12 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:11.834849 End time: 2026-02-05 18:52:12.151649 2026-02-05 18:52:12 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:12 INFO statwt::::casa ########################################## 2026-02-05 18:52:12 INFO name:: No table opened. 2026-02-05 18:52:12 INFO name:: No table opened. .2026-02-05 18:52:12 INFO statwt::::casa ########################################## 2026-02-05 18:52:12 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:12 INFO statwt::::casa statwt( vis='ngc5921.split.chanbin_0.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='', timebin=1, slidetimebin=False, chanbin='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' ) 2026-02-05 18:52:12 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:12 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:12 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:12 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:12 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:13 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:13 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:13 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:13 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:13 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-02-05 18:52:13 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:13 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-02-05 18:52:13 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-02-05 18:52:13 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:13 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:12.266951 End time: 2026-02-05 18:52:13.350230 2026-02-05 18:52:13 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:13 INFO statwt::::casa ########################################## 2026-02-05 18:52:13 INFO statwt::::casa ########################################## 2026-02-05 18:52:13 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:13 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' ) 2026-02-05 18:52:13 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:13 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:13 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-02-05 18:52:13 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. 2026-02-05 18:52:13 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:15 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:15 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:15 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:15 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:15 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-02-05 18:52:15 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:15 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-02-05 18:52:15 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-02-05 18:52:15 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:15 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:13.388384 End time: 2026-02-05 18:52:14.521436 2026-02-05 18:52:15 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:15 INFO statwt::::casa ########################################## 2026-02-05 18:52:15 INFO statwt::::casa ########################################## 2026-02-05 18:52:15 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:15 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' ) 2026-02-05 18:52:15 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:15 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:15 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-02-05 18:52:15 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:15 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-02-05 18:52:15 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-02-05 18:52:15 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:16 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:16 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:16 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:16 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:16 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-02-05 18:52:16 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:16 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-02-05 18:52:16 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-02-05 18:52:16 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:16 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:14.566596 End time: 2026-02-05 18:52:15.843404 2026-02-05 18:52:16 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:16 INFO statwt::::casa ########################################## 2026-02-05 18:52:16 INFO statwt::::casa ########################################## 2026-02-05 18:52:16 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:16 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' ) 2026-02-05 18:52:16 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:16 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:16 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_4 2026-02-05 18:52:16 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:16 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-02-05 18:52:16 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-02-05 18:52:16 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:17 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:17 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:17 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:17 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:17 INFO StatWtTVI::summarizeFlagging 0 43192 28331 2026-02-05 18:52:17 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:17 INFO StatWtTVI::summarizeStats The mean of the computed weights is 16.7062 2026-02-05 18:52:17 INFO StatWtTVI::summarizeStats The variance of the computed weights is 170.875 2026-02-05 18:52:17 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:17 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:15.889355 End time: 2026-02-05 18:52:17.166163 2026-02-05 18:52:17 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:17 INFO statwt::::casa ########################################## 2026-02-05 18:52:17 INFO statwt::::casa ########################################## 2026-02-05 18:52:17 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:17 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' ) 2026-02-05 18:52:17 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:17 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:17 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_5 2026-02-05 18:52:17 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:17 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:18 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:18 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:18 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:18 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:18 INFO StatWtTVI::summarizeFlagging 0 21600 11131 2026-02-05 18:52:18 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:18 INFO StatWtTVI::summarizeStats The mean of the computed weights is 14.0517 2026-02-05 18:52:18 INFO StatWtTVI::summarizeStats The variance of the computed weights is 92.3814 2026-02-05 18:52:18 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:18 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:17.204801 End time: 2026-02-05 18:52:17.827361 2026-02-05 18:52:18 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:18 INFO statwt::::casa ########################################## 2026-02-05 18:52:18 INFO statwt::::casa ########################################## 2026-02-05 18:52:18 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:18 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' ) 2026-02-05 18:52:18 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:18 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:18 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_6 2026-02-05 18:52:18 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:18 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:19 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:19 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:19 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:19 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:19 INFO StatWtTVI::summarizeFlagging 0 21600 11131 2026-02-05 18:52:19 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:19 INFO StatWtTVI::summarizeStats The mean of the computed weights is 14.0517 2026-02-05 18:52:19 INFO StatWtTVI::summarizeStats The variance of the computed weights is 92.3814 2026-02-05 18:52:19 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:19 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:17.887006 End time: 2026-02-05 18:52:18.559188 2026-02-05 18:52:19 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:19 INFO statwt::::casa ########################################## 2026-02-05 18:52:19 INFO statwt::::casa ########################################## 2026-02-05 18:52:19 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:19 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' ) 2026-02-05 18:52:19 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:19 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:19 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_7 2026-02-05 18:52:19 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:19 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-02-05 18:52:19 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-02-05 18:52:19 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:19 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:19 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:19 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:19 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:19 INFO StatWtTVI::summarizeFlagging 0 21600 11131 2026-02-05 18:52:19 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:19 INFO StatWtTVI::summarizeStats The mean of the computed weights is 14.0517 2026-02-05 18:52:19 INFO StatWtTVI::summarizeStats The variance of the computed weights is 92.3814 2026-02-05 18:52:19 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:19 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:18.606470 End time: 2026-02-05 18:52:19.285079 2026-02-05 18:52:19 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:19 INFO statwt::::casa ########################################## 2026-02-05 18:52:19 INFO name:: No table opened. 2026-02-05 18:52:19 INFO name:: No table opened. .2026-02-05 18:52:21 INFO statwt::::casa ########################################## 2026-02-05 18:52:21 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:21 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' ) 2026-02-05 18:52:21 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:21 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:21 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:21 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. 2026-02-05 18:52:21 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-02-05 18:52:21 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-02-05 18:52:22 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-02-05 18:52:23 INFO StatWtTVI::summarizeFlagging Originally, 28.7129% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:23 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 28.7129% 2026-02-05 18:52:23 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:23 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:23 INFO StatWtTVI::summarizeFlagging 0 356 4 2026-02-05 18:52:23 INFO StatWtTVI::summarizeFlagging 1 288 18 2026-02-05 18:52:23 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15;SPW 1, channels 0~15 2026-02-05 18:52:23 INFO StatWtTVI::summarizeStats The mean of the computed weights is 34.8553 2026-02-05 18:52:23 INFO StatWtTVI::summarizeStats The variance of the computed weights is 104.361 2026-02-05 18:52:23 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:23 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:20.889526 End time: 2026-02-05 18:52:22.891552 2026-02-05 18:52:23 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:23 INFO statwt::::casa ########################################## 2026-02-05 18:52:24 INFO statwt::::casa ########################################## 2026-02-05 18:52:24 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:24 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' ) 2026-02-05 18:52:24 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:24 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:24 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:24 INFO StatWtColConfig::_determineFlags CORRECTED_DATA is not present. Updating the SIGMA/SIGMA_SPECTRUM and WEIGHT/WEIGHT_SPECTRUM values based on calculations using the DATA column. 2026-02-05 18:52:24 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing WEIGHT_SPECTRUM column 2026-02-05 18:52:24 INFO StatWtColConfig::_initSpecColsIfNecessary Fully initializing SIGMA_SPECTRUM column 2026-02-05 18:52:24 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. 2026-02-05 18:52:24 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 2026-02-05 18:52:24 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. 2026-02-05 18:52:24 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 2026-02-05 18:52:24 INFO statwt::::casa Traceback (most recent call last): 2026-02-05 18:52:24 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.5-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/statwt.py", line 993, in __call__ 2026-02-05 18:52:24 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'] ) 2026-02-05 18:52:24 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-05 18:52:24 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.5-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_statwt.py", line 56, in statwt 2026-02-05 18:52:24 INFO statwt::::casa+ rval = myms.statwt( 2026-02-05 18:52:24 INFO statwt::::casa+ ^^^^^^^^^^^^ 2026-02-05 18:52:24 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.5-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/ms.py", line 1235, in statwt 2026-02-05 18:52:24 INFO statwt::::casa+ return self._swigobj.statwt(combine, timebin, slidetimebin, chanbin, minsamp, statalg, fence, center, lside, zscore, maxiter, fitspw, excludechans, wtrange, preview, datacolumn) 2026-02-05 18:52:24 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-05 18:52:24 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.5-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/ms.py", line 2775, in statwt 2026-02-05 18:52:24 INFO statwt::::casa+ return _ms.ms_statwt(self, *args, **kwargs) 2026-02-05 18:52:24 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-05 18:52:24 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. 2026-02-05 18:52:24 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 2026-02-05 18:52:24 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:23.652331 End time: 2026-02-05 18:52:24.279458 2026-02-05 18:52:24 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:24 INFO statwt::::casa ########################################## 2026-02-05 18:52:24 INFO statwt::::casa ########################################## 2026-02-05 18:52:24 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:24 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' ) 2026-02-05 18:52:24 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:24 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:24 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-02-05 18:52:24 INFO StatWtColConfig::_determineFlags CORRECTED_DATA is not present. Updating the SIGMA/SIGMA_SPECTRUM and WEIGHT/WEIGHT_SPECTRUM values based on calculations using the DATA column. 2026-02-05 18:52:24 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-02-05 18:52:25 INFO StatWtTVI::summarizeFlagging Originally, 15.3455% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:25 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 15.3455% 2026-02-05 18:52:25 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:25 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:25 INFO StatWtTVI::summarizeFlagging 0 356 4 2026-02-05 18:52:25 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15 2026-02-05 18:52:25 INFO StatWtTVI::summarizeStats The mean of the computed weights is 38.2032 2026-02-05 18:52:25 INFO StatWtTVI::summarizeStats The variance of the computed weights is 83.0845 2026-02-05 18:52:25 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:25 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:24.283466 End time: 2026-02-05 18:52:25.019312 2026-02-05 18:52:25 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:25 INFO statwt::::casa ########################################## 2026-02-05 18:52:25 INFO name:: No table opened. 2026-02-05 18:52:25 INFO name:: No table opened. .2026-02-05 18:52:25 INFO statwt::::casa ########################################## 2026-02-05 18:52:25 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:25 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' ) 2026-02-05 18:52:25 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:25 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:25 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:25 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. 2026-02-05 18:52:25 INFO StatWtTVI::StatWtTVI Using DATA to compute weights 2026-02-05 18:52:25 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:25 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:25 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:25 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:25 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-02-05 18:52:25 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:25 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-02-05 18:52:25 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-02-05 18:52:25 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:25 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:25.165693 End time: 2026-02-05 18:52:25.461003 2026-02-05 18:52:25 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:25 INFO statwt::::casa ########################################## 2026-02-05 18:52:26 INFO name:: No table opened. 2026-02-05 18:52:26 INFO name:: No table opened. .2026-02-05 18:52:26 INFO statwt::::casa ########################################## 2026-02-05 18:52:26 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:26 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' ) 2026-02-05 18:52:26 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:26 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:26 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:26 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:26 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:26 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:26 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:26 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:26 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:26 INFO StatWtTVI::summarizeFlagging 0 315 124 2026-02-05 18:52:26 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:26 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.46865 2026-02-05 18:52:26 INFO StatWtTVI::summarizeStats The variance of the computed weights is 0.933388 2026-02-05 18:52:26 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:26 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:25.997975 End time: 2026-02-05 18:52:26.258212 2026-02-05 18:52:26 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:26 INFO statwt::::casa ########################################## 2026-02-05 18:52:27 INFO statwt::::casa ########################################## 2026-02-05 18:52:27 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:27 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' ) 2026-02-05 18:52:27 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:27 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:27 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-02-05 18:52:27 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:27 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:27 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:27 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:27 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:27 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:27 INFO StatWtTVI::summarizeFlagging 0 315 124 2026-02-05 18:52:27 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:27 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.46865 2026-02-05 18:52:27 INFO StatWtTVI::summarizeStats The variance of the computed weights is 0.933388 2026-02-05 18:52:27 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:27 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:26.629051 End time: 2026-02-05 18:52:26.863277 2026-02-05 18:52:27 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:27 INFO statwt::::casa ########################################## 2026-02-05 18:52:27 INFO name:: No table opened. 2026-02-05 18:52:27 INFO name:: No table opened. .2026-02-05 18:52:27 INFO statwt::::casa ########################################## 2026-02-05 18:52:27 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:27 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' ) 2026-02-05 18:52:27 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:27 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:27 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:27 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:27 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:27 INFO StatWtTVI::summarizeFlagging Originally, 18.1818% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:27 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.1818% 2026-02-05 18:52:27 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:27 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:27 INFO StatWtTVI::summarizeFlagging 0 1530 1019 2026-02-05 18:52:27 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:27 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.57858 2026-02-05 18:52:27 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.8497 2026-02-05 18:52:27 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:27 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:26.965205 End time: 2026-02-05 18:52:27.182274 2026-02-05 18:52:27 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:27 INFO statwt::::casa ########################################## 2026-02-05 18:52:27 INFO statwt::::casa ########################################## 2026-02-05 18:52:27 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:27 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' ) 2026-02-05 18:52:27 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:27 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:27 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-02-05 18:52:28 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:28 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging Originally, 18.1818% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.1818% 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging 0 1530 1019 2026-02-05 18:52:28 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:28 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.57858 2026-02-05 18:52:28 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.8497 2026-02-05 18:52:28 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:28 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:27.473292 End time: 2026-02-05 18:52:27.643914 2026-02-05 18:52:28 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:28 INFO statwt::::casa ########################################## 2026-02-05 18:52:28 INFO name:: No table opened. 2026-02-05 18:52:28 INFO name:: No table opened. .2026-02-05 18:52:28 INFO statwt::::casa ########################################## 2026-02-05 18:52:28 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:28 INFO statwt::::casa statwt( vis='ngc5921.split.minsamp.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin=1, slidetimebin=False, chanbin='spw', minsamp=60, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='corrected' ) 2026-02-05 18:52:28 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:28 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:28 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:28 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:28 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-02-05 18:52:28 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:28 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-02-05 18:52:28 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-02-05 18:52:28 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:28 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:27.784424 End time: 2026-02-05 18:52:28.030383 2026-02-05 18:52:28 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:28 INFO statwt::::casa ########################################## 2026-02-05 18:52:28 INFO statwt::::casa ########################################## 2026-02-05 18:52:28 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:28 INFO statwt::::casa statwt( vis='ngc5921.split.minsamp.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='corr', timebin=1, slidetimebin=False, chanbin='spw', minsamp=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' ) 2026-02-05 18:52:28 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:28 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:28 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-02-05 18:52:28 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:28 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0.0151515%. 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.2121% 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:28 INFO StatWtTVI::summarizeFlagging 0 2699 1793 2026-02-05 18:52:28 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:28 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00706 2026-02-05 18:52:28 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.34301 2026-02-05 18:52:28 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:28 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:28.088389 End time: 2026-02-05 18:52:28.433214 2026-02-05 18:52:28 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:28 INFO statwt::::casa ########################################## 2026-02-05 18:52:28 INFO name:: No table opened. 2026-02-05 18:52:28 INFO name:: No table opened. .2026-02-05 18:52:29 INFO statwt::::casa ########################################## 2026-02-05 18:52:29 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:29 INFO statwt::::casa statwt( vis='statwt_test_vlass_timebin1.ms', selectdata=True, field='', spw='', intent='', array='', observation='', scan='', combine='scan,field,state', timebin=1, slidetimebin=False, chanbin='spw', minsamp=2, statalg='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, fitspw='', excludechans=False, wtrange=[], flagbackup=True, preview=False, datacolumn='residual_data' ) 2026-02-05 18:52:29 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:29 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:29 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:29 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. 2026-02-05 18:52:29 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-02-05 18:52:29 INFO StatWtTVI::summarizeFlagging Originally, 28.7129% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:29 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 28.7129% 2026-02-05 18:52:29 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:29 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:29 INFO StatWtTVI::summarizeFlagging 0 3936 1945 2026-02-05 18:52:29 INFO StatWtTVI::summarizeFlagging 1 3888 2344 2026-02-05 18:52:29 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15;SPW 1, channels 0~15 2026-02-05 18:52:29 INFO StatWtTVI::summarizeStats The mean of the computed weights is 40.6606 2026-02-05 18:52:29 INFO StatWtTVI::summarizeStats The variance of the computed weights is 372.347 2026-02-05 18:52:29 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:29 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:28.581296 End time: 2026-02-05 18:52:28.931002 2026-02-05 18:52:29 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:29 INFO statwt::::casa ########################################## 2026-02-05 18:52:29 INFO statwt::::casa ########################################## 2026-02-05 18:52:29 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:29 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' ) 2026-02-05 18:52:29 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:29 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:29 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:29 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. 2026-02-05 18:52:29 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-02-05 18:52:30 INFO StatWtTVI::summarizeFlagging Originally, 28.7129% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:30 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 28.7129% 2026-02-05 18:52:30 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:30 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:30 INFO StatWtTVI::summarizeFlagging 0 360 13 2026-02-05 18:52:30 INFO StatWtTVI::summarizeFlagging 1 360 22 2026-02-05 18:52:30 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~15;SPW 1, channels 0~15 2026-02-05 18:52:30 INFO StatWtTVI::summarizeStats The mean of the computed weights is 31.8048 2026-02-05 18:52:30 INFO StatWtTVI::summarizeStats The variance of the computed weights is 45.3775 2026-02-05 18:52:30 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:30 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:29.264848 End time: 2026-02-05 18:52:29.644615 2026-02-05 18:52:30 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:30 INFO statwt::::casa ########################################## 2026-02-05 18:52:30 INFO name:: No table opened. 2026-02-05 18:52:30 INFO name:: No table opened. .2026-02-05 18:52:30 INFO statwt::::casa ########################################## 2026-02-05 18:52:30 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:30 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' ) 2026-02-05 18:52:30 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:30 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:30 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:30 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. 2026-02-05 18:52:30 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:30 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:30 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:30 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:30 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:30 INFO StatWtTVI::summarizeFlagging 0 270 89 2026-02-05 18:52:30 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:30 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.46103 2026-02-05 18:52:30 INFO StatWtTVI::summarizeStats The variance of the computed weights is 0.913911 2026-02-05 18:52:30 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:30 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:29.914452 End time: 2026-02-05 18:52:30.216966 2026-02-05 18:52:30 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:30 INFO statwt::::casa ########################################## 2026-02-05 18:52:30 INFO name:: No table opened. 2026-02-05 18:52:30 INFO name:: No table opened. .2026-02-05 18:52:30 INFO statwt::::casa ########################################## 2026-02-05 18:52:30 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:30 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' ) 2026-02-05 18:52:30 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:30 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:31 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:31 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. 2026-02-05 18:52:31 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:31 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:31 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:31 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:31 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:31 INFO StatWtTVI::summarizeFlagging 0 45 45 2026-02-05 18:52:31 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:31 INFO StatWtTVI::summarizeStats The mean of the computed weights is 0.0597345 2026-02-05 18:52:31 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.00596e-06 2026-02-05 18:52:31 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:31 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:30.490767 End time: 2026-02-05 18:52:30.741759 2026-02-05 18:52:31 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:31 INFO statwt::::casa ########################################## 2026-02-05 18:52:31 INFO statwt::::casa ########################################## 2026-02-05 18:52:31 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:31 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' ) 2026-02-05 18:52:31 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:31 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:31 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-02-05 18:52:31 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. 2026-02-05 18:52:31 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:31 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:31 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:31 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:31 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:31 INFO StatWtTVI::summarizeFlagging 0 45 45 2026-02-05 18:52:31 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:31 INFO StatWtTVI::summarizeStats The mean of the computed weights is 0.0597345 2026-02-05 18:52:31 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.00596e-06 2026-02-05 18:52:31 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:31 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:31.090923 End time: 2026-02-05 18:52:31.361838 2026-02-05 18:52:31 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:31 INFO statwt::::casa ########################################## 2026-02-05 18:52:31 INFO name:: No table opened. 2026-02-05 18:52:31 INFO name:: No table opened. .2026-02-05 18:52:31 INFO statwt::::casa ########################################## 2026-02-05 18:52:31 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:31 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' ) 2026-02-05 18:52:31 INFO statwt::::casa Running in preview mode. No flags will be modified, so existing flags will not be backed up. 2026-02-05 18:52:32 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:32 INFO StatWt::writeWeights RAN IN PREVIEW MODE. NO WEIGHTS NOR FLAGS WERE CHANGED. 2026-02-05 18:52:32 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 59.4848%. 2026-02-05 18:52:32 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 77.6818% 2026-02-05 18:52:32 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:32 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:32 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-02-05 18:52:32 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:32 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-02-05 18:52:32 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-02-05 18:52:32 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:32 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:31.484085 End time: 2026-02-05 18:52:31.654459 2026-02-05 18:52:32 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:32 INFO statwt::::casa ########################################## 2026-02-05 18:52:32 INFO name:: No table opened. 2026-02-05 18:52:32 INFO name:: No table opened. .2026-02-05 18:52:32 INFO statwt::::casa ########################################## 2026-02-05 18:52:32 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:32 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' ) 2026-02-05 18:52:32 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:32 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:32 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:32 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. 2026-02-05 18:52:32 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA - MODEL_DATA to compute weights 2026-02-05 18:52:32 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:32 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:32 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:32 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:32 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-02-05 18:52:32 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:32 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-02-05 18:52:32 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-02-05 18:52:32 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:32 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:31.721280 End time: 2026-02-05 18:52:32.083341 2026-02-05 18:52:32 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:32 INFO statwt::::casa ########################################## 2026-02-05 18:52:32 INFO name:: No table opened. 2026-02-05 18:52:32 INFO name:: No table opened. .2026-02-05 18:52:32 INFO statwt::::casa ########################################## 2026-02-05 18:52:32 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:32 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' ) 2026-02-05 18:52:32 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:32 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:32 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:33 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. 2026-02-05 18:52:33 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-02-05 18:52:33 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:33 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:33 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:33 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:33 INFO StatWtTVI::summarizeFlagging 0 5399 2389 2026-02-05 18:52:33 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:33 INFO StatWtTVI::summarizeStats The mean of the computed weights is 1533.27 2026-02-05 18:52:33 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.48377e+06 2026-02-05 18:52:33 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:33 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:32.469896 End time: 2026-02-05 18:52:32.848391 2026-02-05 18:52:33 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:33 INFO statwt::::casa ########################################## 2026-02-05 18:52:33 INFO name:: No table opened. 2026-02-05 18:52:33 INFO name:: No table opened. .2026-02-05 18:52:33 INFO statwt::::casa ########################################## 2026-02-05 18:52:33 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:33 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' ) 2026-02-05 18:52:33 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:33 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:33 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:33 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. 2026-02-05 18:52:33 INFO StatWtTVI::StatWtTVI Using DATA - MODEL_DATA to compute weights 2026-02-05 18:52:34 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:34 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:34 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:34 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:34 INFO StatWtTVI::summarizeFlagging 0 5399 2389 2026-02-05 18:52:34 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:34 INFO StatWtTVI::summarizeStats The mean of the computed weights is 1533.27 2026-02-05 18:52:34 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.48377e+06 2026-02-05 18:52:34 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:34 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:33.168037 End time: 2026-02-05 18:52:33.539934 2026-02-05 18:52:34 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:34 INFO statwt::::casa ########################################## 2026-02-05 18:52:34 INFO name:: No table opened. 2026-02-05 18:52:34 INFO name:: No table opened. .2026-02-05 18:52:34 INFO statwt::::casa ########################################## 2026-02-05 18:52:34 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:34 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' ) 2026-02-05 18:52:34 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:34 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:34 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:34 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:34 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA - MODEL_DATA to compute weights 2026-02-05 18:52:34 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:34 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:34 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:34 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:34 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-02-05 18:52:34 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:34 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-02-05 18:52:34 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-02-05 18:52:34 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:34 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:33.825258 End time: 2026-02-05 18:52:34.240675 2026-02-05 18:52:34 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:34 INFO statwt::::casa ########################################## 2026-02-05 18:52:35 INFO name:: No table opened. 2026-02-05 18:52:35 INFO name:: No table opened. .2026-02-05 18:52:35 INFO statwt::::casa ########################################## 2026-02-05 18:52:35 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:35 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' ) 2026-02-05 18:52:35 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:35 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:35 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:35 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. 2026-02-05 18:52:35 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:35 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:35 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:35 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:35 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:35 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-02-05 18:52:35 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:35 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-02-05 18:52:35 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-02-05 18:52:35 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:35 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:34.559267 End time: 2026-02-05 18:52:34.954394 2026-02-05 18:52:35 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:35 INFO statwt::::casa ########################################## 2026-02-05 18:52:35 INFO name:: No table opened. 2026-02-05 18:52:35 INFO name:: No table opened. .2026-02-05 18:52:35 INFO statwt::::casa ########################################## 2026-02-05 18:52:35 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:35 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' ) 2026-02-05 18:52:35 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:35 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:35 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:35 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. 2026-02-05 18:52:35 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:35 INFO StatWtTVI::summarizeFlagging Originally, 18.1818% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:35 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.1818% 2026-02-05 18:52:35 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:35 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:35 INFO StatWtTVI::summarizeFlagging 0 135 88 2026-02-05 18:52:35 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:35 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.676 2026-02-05 18:52:35 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.37272 2026-02-05 18:52:35 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:35 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:35.015670 End time: 2026-02-05 18:52:35.096806 2026-02-05 18:52:35 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:35 INFO statwt::::casa ########################################## 2026-02-05 18:52:35 INFO name:: No table opened. 2026-02-05 18:52:35 INFO name:: No table opened. .2026-02-05 18:52:35 INFO statwt::::casa ########################################## 2026-02-05 18:52:35 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:35 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' ) 2026-02-05 18:52:35 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:35 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:35 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:35 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. 2026-02-05 18:52:35 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:36 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:36 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:36 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:36 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:36 INFO StatWtTVI::summarizeFlagging 0 5400 2944 2026-02-05 18:52:36 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:36 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.87503 2026-02-05 18:52:36 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.18372 2026-02-05 18:52:36 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:36 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:35.428254 End time: 2026-02-05 18:52:35.840292 2026-02-05 18:52:36 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:36 INFO statwt::::casa ########################################## 2026-02-05 18:52:36 INFO name:: No table opened. 2026-02-05 18:52:36 INFO name:: No table opened. .2026-02-05 18:52:36 INFO statwt::::casa ########################################## 2026-02-05 18:52:36 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:36 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' ) 2026-02-05 18:52:36 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:36 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:36 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-02-05 18:52:36 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. 2026-02-05 18:52:36 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:36 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:36 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:36 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:36 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:36 INFO StatWtTVI::summarizeFlagging 0 5400 2892 2026-02-05 18:52:36 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:36 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.86331 2026-02-05 18:52:36 INFO StatWtTVI::summarizeStats The variance of the computed weights is 2.05373 2026-02-05 18:52:36 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:36 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:36.088385 End time: 2026-02-05 18:52:36.492566 2026-02-05 18:52:36 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:36 INFO statwt::::casa ########################################## 2026-02-05 18:52:37 INFO statwt::::casa ########################################## 2026-02-05 18:52:37 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:37 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' ) 2026-02-05 18:52:37 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:37 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:37 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-02-05 18:52:37 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. 2026-02-05 18:52:37 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:37 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:37 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:37 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:37 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:37 INFO StatWtTVI::summarizeFlagging 0 5400 2782 2026-02-05 18:52:37 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:37 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.83245 2026-02-05 18:52:37 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.90358 2026-02-05 18:52:37 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:37 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:36.793342 End time: 2026-02-05 18:52:37.208230 2026-02-05 18:52:37 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:37 INFO statwt::::casa ########################################## 2026-02-05 18:52:38 INFO name:: No table opened. 2026-02-05 18:52:38 INFO name:: No table opened. .2026-02-05 18:52:38 INFO statwt::::casa ########################################## 2026-02-05 18:52:38 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:38 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' ) 2026-02-05 18:52:38 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:38 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:38 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:38 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. 2026-02-05 18:52:38 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:38 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:38 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:38 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:38 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:38 INFO StatWtTVI::summarizeFlagging 0 2700 1793 2026-02-05 18:52:38 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:38 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.00744 2026-02-05 18:52:38 INFO StatWtTVI::summarizeStats The variance of the computed weights is 3.3415 2026-02-05 18:52:38 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:38 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:37.592547 End time: 2026-02-05 18:52:37.889920 2026-02-05 18:52:38 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:38 INFO statwt::::casa ########################################## 2026-02-05 18:52:38 INFO name:: No table opened. 2026-02-05 18:52:38 INFO name:: No table opened. .2026-02-05 18:52:38 INFO statwt::::casa ########################################## 2026-02-05 18:52:38 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:38 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' ) 2026-02-05 18:52:38 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:38 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:38 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:38 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. 2026-02-05 18:52:38 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:38 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:38 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:38 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:38 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:38 INFO StatWtTVI::summarizeFlagging 0 5399 3837 2026-02-05 18:52:38 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:38 INFO StatWtTVI::summarizeStats The mean of the computed weights is 3.69122 2026-02-05 18:52:38 INFO StatWtTVI::summarizeStats The variance of the computed weights is 6.86097 2026-02-05 18:52:38 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:38 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:38.009626 End time: 2026-02-05 18:52:38.395968 2026-02-05 18:52:38 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:38 INFO statwt::::casa ########################################## 2026-02-05 18:52:38 INFO statwt::::casa ########################################## 2026-02-05 18:52:38 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:38 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' ) 2026-02-05 18:52:38 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:38 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:38 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-02-05 18:52:38 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. 2026-02-05 18:52:38 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:39 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:39 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:39 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:39 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:39 INFO StatWtTVI::summarizeFlagging 0 5399 2485 2026-02-05 18:52:39 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:39 INFO StatWtTVI::summarizeStats The mean of the computed weights is 9.49987 2026-02-05 18:52:39 INFO StatWtTVI::summarizeStats The variance of the computed weights is 19.7106 2026-02-05 18:52:39 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:39 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:38.435216 End time: 2026-02-05 18:52:38.879769 2026-02-05 18:52:39 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:39 INFO statwt::::casa ########################################## 2026-02-05 18:52:39 INFO statwt::::casa ########################################## 2026-02-05 18:52:39 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:39 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' ) 2026-02-05 18:52:39 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:39 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:39 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_3 2026-02-05 18:52:39 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:39 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:39 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:39 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:39 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:39 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:39 INFO StatWtTVI::summarizeFlagging 0 5399 2320 2026-02-05 18:52:39 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:39 INFO StatWtTVI::summarizeStats The mean of the computed weights is 49.5864 2026-02-05 18:52:39 INFO StatWtTVI::summarizeStats The variance of the computed weights is 418.744 2026-02-05 18:52:39 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:39 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:38.922569 End time: 2026-02-05 18:52:39.457317 2026-02-05 18:52:39 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:39 INFO statwt::::casa ########################################## 2026-02-05 18:52:40 INFO statwt::::casa ########################################## 2026-02-05 18:52:40 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:40 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' ) 2026-02-05 18:52:40 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:40 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:40 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_4 2026-02-05 18:52:40 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. 2026-02-05 18:52:40 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:40 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:40 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:40 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:40 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:40 INFO StatWtTVI::summarizeFlagging 0 5399 4066 2026-02-05 18:52:40 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:40 INFO StatWtTVI::summarizeStats The mean of the computed weights is 5.55784 2026-02-05 18:52:40 INFO StatWtTVI::summarizeStats The variance of the computed weights is 22.2368 2026-02-05 18:52:40 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:40 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:39.509149 End time: 2026-02-05 18:52:40.025290 2026-02-05 18:52:40 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:40 INFO statwt::::casa ########################################## 2026-02-05 18:52:40 INFO statwt::::casa ########################################## 2026-02-05 18:52:40 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:40 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' ) 2026-02-05 18:52:40 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:40 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:40 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_5 2026-02-05 18:52:40 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. 2026-02-05 18:52:40 SEVERE ms::statwt Exception Reported: Unsupported value for 'statalg' at File: /source/casa6/casatools/src/code/mstransform/TVI/StatWtTVI.cc, line: 406 2026-02-05 18:52:40 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 2026-02-05 18:52:40 INFO statwt::::casa Traceback (most recent call last): 2026-02-05 18:52:40 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.5-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/statwt.py", line 993, in __call__ 2026-02-05 18:52:40 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'] ) 2026-02-05 18:52:40 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-05 18:52:40 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.5-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_statwt.py", line 56, in statwt 2026-02-05 18:52:40 INFO statwt::::casa+ rval = myms.statwt( 2026-02-05 18:52:40 INFO statwt::::casa+ ^^^^^^^^^^^^ 2026-02-05 18:52:40 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.5-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/ms.py", line 1235, in statwt 2026-02-05 18:52:40 INFO statwt::::casa+ return self._swigobj.statwt(combine, timebin, slidetimebin, chanbin, minsamp, statalg, fence, center, lside, zscore, maxiter, fitspw, excludechans, wtrange, preview, datacolumn) 2026-02-05 18:52:40 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-05 18:52:40 INFO statwt::::casa+ File "/wheeldirectory/casa-6.7.5-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/ms.py", line 2775, in statwt 2026-02-05 18:52:40 INFO statwt::::casa+ return _ms.ms_statwt(self, *args, **kwargs) 2026-02-05 18:52:40 INFO statwt::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-02-05 18:52:40 INFO statwt::::casa+ RuntimeError: Unsupported value for 'statalg' at File: /source/casa6/casatools/src/code/mstransform/TVI/StatWtTVI.cc, line: 406 2026-02-05 18:52:40 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:40.065296 End time: 2026-02-05 18:52:40.141028 2026-02-05 18:52:40 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:40 INFO statwt::::casa ########################################## 2026-02-05 18:52:40 INFO name:: No table opened. 2026-02-05 18:52:40 INFO name:: No table opened. .2026-02-05 18:52:40 INFO statwt::::casa ########################################## 2026-02-05 18:52:40 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:40 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' ) 2026-02-05 18:52:40 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:40 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:40 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:40 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. 2026-02-05 18:52:40 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:41 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:41 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:41 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:41 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:41 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-02-05 18:52:41 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:41 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-02-05 18:52:41 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-02-05 18:52:41 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:41 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:40.209048 End time: 2026-02-05 18:52:40.528007 2026-02-05 18:52:41 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:41 INFO statwt::::casa ########################################## 2026-02-05 18:52:41 INFO statwt::::casa ########################################## 2026-02-05 18:52:41 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:41 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' ) 2026-02-05 18:52:41 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:41 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:41 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-02-05 18:52:41 INFO StatWtColConfig::_determineFlags Updating the WEIGHT/WEIGHT_SPECTRUM values. SIGMA/SIGMA_SPECTRUM values will not be recalculated as they are related to the values in the DATA column. 2026-02-05 18:52:41 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:41 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 0%. 2026-02-05 18:52:41 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 18.197% 2026-02-05 18:52:41 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:41 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:41 INFO StatWtTVI::summarizeFlagging 0 2700 948 2026-02-05 18:52:41 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:41 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.50245 2026-02-05 18:52:41 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.046 2026-02-05 18:52:41 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:41 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:40.965889 End time: 2026-02-05 18:52:41.384702 2026-02-05 18:52:41 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:41 INFO statwt::::casa ########################################## 2026-02-05 18:52:42 INFO name:: No table opened. 2026-02-05 18:52:42 INFO name:: No table opened. .2026-02-05 18:52:42 INFO statwt::::casa ########################################## 2026-02-05 18:52:42 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:42 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' ) 2026-02-05 18:52:42 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:42 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:42 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_1 2026-02-05 18:52:42 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. 2026-02-05 18:52:42 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:42 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 59.4848%. 2026-02-05 18:52:42 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 77.6818% 2026-02-05 18:52:42 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:42 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:42 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-02-05 18:52:42 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:42 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-02-05 18:52:42 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-02-05 18:52:42 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:42 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:41.680050 End time: 2026-02-05 18:52:41.978781 2026-02-05 18:52:42 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:42 INFO statwt::::casa ########################################## 2026-02-05 18:52:42 INFO statwt::::casa ########################################## 2026-02-05 18:52:42 INFO statwt::::casa ##### Begin Task: statwt ##### 2026-02-05 18:52:42 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' ) 2026-02-05 18:52:42 INFO statwt::::casa Backup original flags before applying new flags 2026-02-05 18:52:42 INFO AgentFlagger::open Table type is Measurement Set 2026-02-05 18:52:42 INFO FlagVersion::saveFlagVersion Creating new backup flag file called statwt_2 2026-02-05 18:52:42 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. 2026-02-05 18:52:42 INFO StatWtTVI::StatWtTVI Using CORRECTED_DATA to compute weights 2026-02-05 18:52:43 INFO StatWtTVI::summarizeFlagging Originally, 18.197% of the data were flagged. StatWtTVI flagged an additional 59.4848%. 2026-02-05 18:52:43 INFO StatWtTVI::summarizeFlagging TOTAL FLAGGED DATA AFTER RUNNING STATWT: 77.6818% 2026-02-05 18:52:43 INFO StatWtTVI::summarizeFlagging 2026-02-05 18:52:43 INFO StatWtTVI::summarizeFlagging SPECTRAL_WINDOW SAMPLES_WITH_NON-ZERO_VARIANCE SAMPLES_WHERE_REAL_PART_VARIANCE_DIFFERS_BY_>50%_FROM_IMAGINARY_PART 2026-02-05 18:52:43 INFO StatWtTVI::summarizeFlagging 0 630 288 2026-02-05 18:52:43 INFO StatWtTVI::_logUsedChannels Weights are being computed using SPW 0, channels 0~62 2026-02-05 18:52:43 INFO StatWtTVI::summarizeStats The mean of the computed weights is 2.55491 2026-02-05 18:52:43 INFO StatWtTVI::summarizeStats The variance of the computed weights is 1.29512 2026-02-05 18:52:43 INFO StatWtTVI::summarizeStats Weights which had corresponding flags of True prior to running this application were not used to compute these stats. 2026-02-05 18:52:43 INFO statwt::::casa Task statwt complete. Start time: 2026-02-05 18:52:42.226126 End time: 2026-02-05 18:52:42.531573 2026-02-05 18:52:43 INFO statwt::::casa ##### End Task: statwt ##### 2026-02-05 18:52:43 INFO statwt::::casa ########################################## 2026-02-05 18:52:43 INFO name:: No table opened. 2026-02-05 18:52:43 INFO name:: No table opened. . ---------------------------------------------------------------------- Ran 23 tests in 35.389s OK Generating XML reports...