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

Statwt Summary Plot

VLASS2.2.sb40507148.eb40987311.59548.184427245375_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 6.572 5.9/7.242 6.485 ± 0.8542
ea03 1342 1342/1342 1342 ± 0.000005828 6.243 5.465/6.826 6.131 ± 0.7414
ea04 1342 1342/1342 1342 ± 0 6.023 5.532/6.424 6.064 ± 0.6074
ea05 1342 1342/1342 1342 ± 0 6.12 5.799/7.039 6.429 ± 0.7241
ea06 1342 1342/1342 1342 ± 0 6.361 5.728/6.64 6.29 ± 0.5985
ea07 1342 1342/1342 1342 ± 0 6.214 5.609/6.317 6.167 ± 0.5727
ea08 1342 1342/1342 1342 ± 0.000001689 6.746 5.806/6.921 6.514 ± 0.7326
ea09 1342 1342/1342 1342 ± 0 6.218 5.704/7.027 6.434 ± 0.7527
ea10 1342 1342/1342 1342 ± 0 6.153 5.911/7.032 6.422 ± 0.6526
ea11 1342 1342/1342 1342 ± 0.000004305 6.346 5.624/6.926 6.372 ± 0.7819
ea12 1342 1342/1342 1342 ± 0 6.548 5.865/6.899 6.516 ± 0.7276
ea13 1342 1342/1342 1342 ± 0 6.072 5.956/6.517 6.254 ± 0.4669
ea14 1342 1342/1342 1342 ± 0 6.271 5.922/6.965 6.479 ± 0.6838
ea15 1342 1342/1342 1342 ± 0 5.344 5.048/5.898 5.463 ± 0.5272
ea16 1342 1342/1342 1342 ± 0 6.495 5.929/7.067 6.565 ± 0.7303
ea17 1342 1342/1342 1342 ± 0 6.627 6.123/7.671 6.837 ± 0.7729
ea18 1342 1342/1342 1342 ± 0 5.265 4.966/5.659 5.352 ± 0.4563
ea19 1342 1342/1342 1342 ± 0 6.492 6.191/7.472 6.79 ± 0.7356
ea20 1342 1342/1342 1342 ± 0 6.112 5.869/7.029 6.369 ± 0.6525
ea21 1342 1342/1342 1342 ± 0 5.909 5.689/6.683 6.165 ± 0.603
ea22 1342 1342/1342 1342 ± 0 6.336 5.496/6.718 6.143 ± 0.6882
ea23 1342 1342/1342 1342 ± 0 6.285 6.017/7.035 6.557 ± 0.7191
ea24 1342 1342/1342 1342 ± 0 6.196 5.35/6.605 6.058 ± 0.6518
ea25 1342 1342/1342 1342 ± 0 6.744 5.912/6.925 6.611 ± 0.7836
ea26 1342 1342/1342 1342 ± 0.000008968 6.668 6.09/7.33 6.681 ± 0.8527
ea27 1342 1342/1342 1342 ± 0 6.259 5.88/7.109 6.437 ± 0.7454
ea28 1342 1342/1342 1342 ± 0 6.3 5.996/7.148 6.59 ± 0.7149
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 ± 0.00002305 5.879 5.657/6.058 5.833 ± 0.3532
3 1342 1342/1342 1342 ± 0.00002497 5.475 5.236/5.639 5.404 ± 0.3457
4 1342 1342/1342 1342 ± 0.00003662 5.395 5.263/6.128 5.529 ± 0.5788
5 1342 1342/1342 1342 ± 0.00002305 5.848 5.501/5.945 5.709 ± 0.3604
6 1342 1342/1342 1342 ± 0.00002305 5.806 5.487/5.955 5.731 ± 0.2978
7 1342 1342/1342 1342 ± 0.00002305 5.867 5.566/5.981 5.759 ± 0.3091
8 1342 1342/1342 1342 ± 0.00002305 5.725 5.448/5.98 5.697 ± 0.3477
9 1342 1342/1342 1342 ± 0.00002305 6.112 5.782/6.273 6.007 ± 0.3569
10 1342 1342/1342 1342 ± 0.00002305 6.571 6.293/6.725 6.465 ± 0.3674
11 1342 1342/1342 1342 ± 0.00002305 6.801 6.562/6.966 6.701 ± 0.3785
12 1342 1342/1342 1342 ± 0.00002305 6.926 6.609/7.068 6.84 ± 0.4382
13 1342 1342/1342 1342 ± 0.00002305 7.436 7.087/7.751 7.375 ± 0.4675
14 1342 1342/1342 1342 ± 0.00002305 7.711 7.35/7.965 7.601 ± 0.4662
15 1342 1342/1342 1342 ± 0.00002305 7.265 6.935/7.535 7.173 ± 0.4635
16 1342 1342/1342 1342 ± 0.00002305 6.347 6.149/6.754 6.427 ± 0.4655
17 1342 1342/1342 1342 ± 0.00002305 6.414 6.09/6.639 6.377 ± 0.461
vis
VLASS2.2.sb40507148.eb40987311.59548.184427245375_split_split.ms
statwtmode
VLASS-SE
output_dir
 
overwrite_modelcol
False
datacolumn
residual_data
Start time
2025-06-07 12:09:27.060
End
2025-06-07 13:11:28.493
Duration
1:02:01.433
Note, WebLog generation is not included in the time.

CASA logs for stage 8