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

Statwt Summary Plot

VLASS2.1.sb38461639.eb38575724.59076.48643795139_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 5.395 5.221/6.218 5.65 ± 0.6923
ea02 1342 1342/1342 1342 ± 0.00003052 5.886 5.409/6.681 5.987 ± 0.9321
ea04 1342 1342/1342 1342 ± 0.00003454 5.527 5.048/6.157 5.478 ± 0.7701
ea05 1342 1342/1342 1342 ± 0.00002131 5.467 5.039/6.517 5.708 ± 0.9513
ea06 1342 1342/1342 1342 ± 0.00003132 4.936 4.573/5.28 4.874 ± 0.5268
ea07 1342 1342/1342 1342 ± 0.00002588 5.898 5.404/6.367 5.968 ± 0.8046
ea08 1342 1342/1342 1342 ± 0.00002738 6.172 5.703/6.958 6.329 ± 0.9122
ea09 1342 1342/1342 1342 ± 0.00002578 5.602 5.001/6.437 5.617 ± 0.9459
ea10 1342 1342/1342 1342 ± 0.00002747 5.806 5.237/6.596 5.882 ± 0.8341
ea11 1342 1342/1342 1342 ± 0.00002946 5.878 5.211/6.572 5.871 ± 0.7791
ea12 1342 1342/1342 1342 ± 0.00003156 5.716 5.235/6.612 5.823 ± 0.8197
ea13 1342 1342/1342 1342 ± 0.00002069 5.709 5.496/6.358 5.94 ± 0.9122
ea14 1342 1342/1342 1342 ± 0.00002622 5.749 5.362/6.731 6.049 ± 0.9644
ea15 1342 1342/1342 1342 ± 0.0000336 5.444 5.085/6.294 5.646 ± 0.8788
ea16 1342 1342/1342 1342 ± 0.0000262 5.763 5.377/6.712 6.001 ± 1.043
ea17 1342 1342/1342 1342 ± 0.00002903 6.12 5.68/7.044 6.217 ± 0.8616
ea18 1342 1342/1342 1342 ± 0.00002913 5.014 4.755/5.783 5.147 ± 0.6378
ea19 1342 1342/1342 1342 ± 0.000014 5.775 5.38/6.801 5.999 ± 1.022
ea20 1342 1342/1342 1342 ± 0.00003062 5.959 5.68/6.865 6.174 ± 0.8448
ea21 1342 1342/1342 1342 ± 0.00002481 5.574 5.29/6.422 5.827 ± 0.9386
ea22 1342 1342/1342 1342 ± 0.00003401 5.377 4.989/6.469 5.679 ± 0.9628
ea23 1342 1342/1342 1342 ± 0.00002547 5.896 5.477/6.755 6.139 ± 0.9299
ea25 1342 1342/1342 1342 ± 0.00002916 5.56 5.25/6.45 5.741 ± 0.7567
ea27 1342 1342/1342 1342 ± 0.00002806 5.6 5.339/6.528 5.822 ± 0.7487
ea28 1342 1342/1342 1342 ± 0.00003005 5.871 5.412/6.688 6.028 ± 0.8636
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 ± 0.00002394 5.517 5.318/5.703 5.482 ± 0.2766
5 1342 1342/1342 1342 ± 0.00002396 5.27 5.073/5.497 5.259 ± 0.3764
6 1342 1342/1342 1342 ± 0.00002394 5.234 5.056/5.343 5.189 ± 0.2668
7 1342 1342/1342 1342 ± 0.00002394 5.25 5.135/5.414 5.245 ± 0.2527
8 1342 1342/1342 1342 ± 0.00002394 5.293 5.098/5.427 5.268 ± 0.2999
9 1342 1342/1342 1342 ± 0.00002394 5.647 5.41/5.873 5.583 ± 0.35
10 1342 1342/1342 1342 ± 0.00002394 6.115 5.876/6.219 6.025 ± 0.3318
11 1342 1342/1342 1342 ± 0.00002394 6.316 6.194/6.527 6.32 ± 0.3508
12 1342 1342/1342 1342 ± 0.00002394 6.579 6.359/6.711 6.53 ± 0.368
13 1342 1342/1342 1342 ± 0.00002485 6.764 6.498/6.955 6.69 ± 0.4488
14 1342 1342/1342 1342 ± 0.00002394 7.095 6.68/7.414 6.966 ± 0.5839
15 1342 1342/1342 1342 ± 0.00003872 6.842 6.632/7.185 6.759 ± 0.6366
16 1342 1342/1342 1342 ± 0.00005234 3.767 3.626/3.908 3.776 ± 0.4306
17 1342 1342/1342 1342 ± 0.00004974 3.729 3.547/3.951 3.773 ± 0.411
output_dir
 
datacolumn
residual_data
overwrite_modelcol
False
vis
VLASS2.1.sb38461639.eb38575724.59076.48643795139_split_split.ms
statwtmode
VLASS-SE
Start time
2025-04-24 10:48:52.197
End
2025-04-24 11:41:05.803
Duration
0:52:13.606
Note, WebLog generation is not included in the time.

CASA logs for stage 8