Calculate data weights based on st. dev. within each spw.

Statwt Summary Plot

VLASS2.2.sb40233904.eb40478968.59488.05569084491_split_split.ms

Plot of antenna-based weight vs. antenna or spectral window (before re-weight)

Plot of antenna-based weight vs. antenna or spectral window (after re-weight)

Statwt Summary

Summary of before/after-statwt antenna-based weights (Wi) for each antenna. The antenna-based weights are derived from the visibility WEIGHT column: WijWiWj.
Antenna Selection statwt before statwt after
Median 1st/3rd Quartile Mean ± S.Dev. Median 1st/3rd Quartile Mean ± S.Dev.
ea01 1342 1342/1342 1342 ± 0 6.013 5.831/6.738 6.275 ± 0.5729
ea02 1342 1342/1342 1342 ± 0 6.207 5.86/6.946 6.391 ± 0.6415
ea03 1342 1342/1342 1342 ± 0.000003451 5.393 5.193/6.596 5.781 ± 0.7006
ea04 1342 1342/1342 1342 ± 0 5.94 5.424/6.619 6.043 ± 0.6516
ea06 1342 1342/1342 1342 ± 0 6.334 5.616/6.603 6.19 ± 0.6125
ea07 1342 1342/1342 1342 ± 0 5.978 5.435/6.096 5.92 ± 0.484
ea08 1342 1342/1342 1342 ± 0 6.212 5.82/6.994 6.452 ± 0.6122
ea09 1342 1342/1342 1342 ± 0 6.106 5.559/6.831 6.164 ± 0.6614
ea10 1342 1342/1342 1342 ± 0.000001151 6.066 5.616/6.727 6.16 ± 0.5739
ea11 1342 1342/1342 1342 ± 0 6.33 5.706/6.948 6.421 ± 0.6948
ea12 1342 1342/1342 1342 ± 0 6.268 5.753/6.859 6.362 ± 0.6529
ea13 1342 1342/1342 1342 ± 0 6.227 5.822/6.745 6.387 ± 0.5385
ea14 1342 1342/1342 1342 ± 0 6.368 5.693/6.725 6.272 ± 0.6871
ea15 1342 1342/1342 1342 ± 0 6.214 5.589/6.662 6.166 ± 0.6942
ea16 1342 1342/1342 1342 ± 0 6.29 5.808/6.718 6.351 ± 0.6247
ea17 1342 1342/1342 1342 ± 0 6.66 6.298/7.534 6.855 ± 0.6502
ea18 1342 1342/1342 1342 ± 0 4.938 4.625/5.302 4.972 ± 0.4152
ea19 1342 1342/1342 1342 ± 0 6.484 5.915/7.024 6.505 ± 0.6298
ea20 1342 1342/1342 1342 ± 0 6.147 5.894/7.058 6.398 ± 0.625
ea21 1342 1342/1342 1342 ± 0 6.023 5.703/6.68 6.234 ± 0.572
ea22 1342 1342/1342 1342 ± 0 6.532 5.748/6.897 6.387 ± 0.6446
ea23 1342 1342/1342 1342 ± 0 6.274 5.872/6.907 6.456 ± 0.6852
ea24 1342 1342/1342 1342 ± 0 6.078 5.48/6.71 6.043 ± 0.6189
ea25 1342 1342/1342 1342 ± 0 6.178 5.423/6.475 6.068 ± 0.7081
ea26 1342 1342/1342 1342 ± 0 6.321 5.764/7.061 6.389 ± 0.6436
ea27 1342 1342/1342 1342 ± 0 5.938 5.759/6.963 6.263 ± 0.6687
ea28 1342 1342/1342 1342 ± 0 5.965 5.732/6.891 6.289 ± 0.6592
Summary of before/after-statwt antenna-based weights (Wi) for each spectral window. The antenna-based weights are derived from the visibility WEIGHT column: WijWiWj.
Spw Selection statwt before statwt after
Median 1st/3rd Quartile Mean ± S.Dev. Median 1st/3rd Quartile Mean ± S.Dev.
2 1342 1342/1342 1342 ± 0.00002307 5.716 5.615/5.856 5.687 ± 0.3123
4 1342 1342/1342 1342 ± 0.00002466 5.497 5.178/5.626 5.431 ± 0.4192
5 1342 1342/1342 1342 ± 0.00002307 5.749 5.47/5.974 5.701 ± 0.3656
6 1342 1342/1342 1342 ± 0.00002307 5.614 5.489/5.825 5.61 ± 0.3122
7 1342 1342/1342 1342 ± 0.00002307 5.715 5.557/5.868 5.686 ± 0.3064
8 1342 1342/1342 1342 ± 0.00002307 5.649 5.429/5.817 5.629 ± 0.3219
9 1342 1342/1342 1342 ± 0.00002307 5.964 5.82/6.115 5.933 ± 0.347
10 1342 1342/1342 1342 ± 0.00002307 6.42 6.23/6.59 6.364 ± 0.3572
11 1342 1342/1342 1342 ± 0.00002307 6.666 6.468/6.809 6.59 ± 0.3696
12 1342 1342/1342 1342 ± 0.00002307 6.744 6.631/6.939 6.731 ± 0.3946
13 1342 1342/1342 1342 ± 0.00002307 7.249 7.012/7.402 7.178 ± 0.4179
14 1342 1342/1342 1342 ± 0.00002307 7.46 7.237/7.56 7.365 ± 0.4014
15 1342 1342/1342 1342 ± 0.00002307 7.06 6.869/7.225 6.996 ± 0.3907
16 1342 1342/1342 1342 ± 0.00002309 6.271 6.064/6.483 6.247 ± 0.3896
17 1342 1342/1342 1342 ± 0.0000232 6.233 6.006/6.413 6.178 ± 0.3794
output_dir
 
vis
VLASS2.2.sb40233904.eb40478968.59488.05569084491_split_split.ms
statwtmode
VLASS-SE
datacolumn
residual_data
overwrite_modelcol
False
Start time
2025-05-14 13:04:29.197
End
2025-05-14 14:13:08.562
Duration
1:08:39.364
Note, WebLog generation is not included in the time.

CASA logs for stage 8