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

Statwt Summary Plot

VLASS2.2.sb41027522.eb41031268.59557.25108456019_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 6.154 5.81/6.846 6.289 ± 0.767
ea03 1342 1342/1342 1342 ± 0.000004276 5.58 5.045/6.492 5.712 ± 0.8615
ea04 1342 1342/1342 1342 ± 0 5.7 5.245/6.478 5.85 ± 0.8239
ea05 1342 1342/1342 1342 ± 0 6.214 5.579/7.06 6.342 ± 0.7543
ea06 1342 1342/1342 1342 ± 0 6.123 5.512/6.605 6.088 ± 0.7683
ea07 1342 1342/1342 1342 ± 0 6.066 5.433/6.482 6.008 ± 0.8088
ea08 1342 1342/1342 1342 ± 0.000001072 5.964 5.44/6.802 6.044 ± 0.8394
ea09 1342 1342/1342 1342 ± 0 6.053 5.496/6.791 6.124 ± 0.8705
ea10 1342 1342/1342 1342 ± 0 6.422 5.62/7.141 6.317 ± 0.848
ea11 1342 1342/1342 1342 ± 0 6.375 5.342/6.767 6.143 ± 0.861
ea12 1342 1342/1342 1342 ± 0 6.519 5.657/6.939 6.366 ± 0.8747
ea13 1342 1342/1342 1342 ± 0 5.699 5.575/6.292 5.878 ± 0.6079
ea14 1342 1342/1342 1342 ± 0 6.238 5.631/6.926 6.271 ± 0.9051
ea15 1342 1342/1342 1342 ± 0 5.85 5.378/6.425 5.893 ± 0.7722
ea16 1342 1342/1342 1342 ± 0 6.467 5.787/7.012 6.326 ± 0.934
ea17 1342 1342/1342 1342 ± 0 6.768 6.187/7.794 6.828 ± 0.9189
ea18 1342 1342/1342 1342 ± 0 5.181 4.716/5.534 5.19 ± 0.5016
ea19 1342 1342/1342 1342 ± 0 6.349 5.84/7.051 6.422 ± 0.8941
ea20 1342 1342/1342 1342 ± 0 5.936 5.481/6.66 6.016 ± 0.8359
ea21 1342 1342/1342 1342 ± 0 5.37 5.051/5.948 5.494 ± 0.586
ea22 1342 1342/1342 1342 ± 0.000005325 6.37 5.414/6.764 6.092 ± 0.7994
ea23 1342 1342/1342 1342 ± 0 6.359 5.71/6.855 6.352 ± 0.7657
ea24 1342 1342/1342 1342 ± 0.00001417 5.994 5.3/6.606 5.846 ± 0.8075
ea25 1342 1342/1342 1342 ± 0 6.719 5.636/7.178 6.481 ± 0.9546
ea26 1342 1342/1342 1342 ± 0 6.678 5.963/7.453 6.617 ± 0.887
ea27 1342 1342/1342 1342 ± 0 6.069 5.565/7.028 6.219 ± 0.7809
ea28 1342 1342/1342 1342 ± 0 6.243 5.807/7.064 6.422 ± 0.7983
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 5.536 5.284/5.76 5.507 ± 0.3147
3 1342 1342/1342 1342 ± 0.00002597 5.152 4.949/5.367 5.154 ± 0.4073
4 1342 1342/1342 1342 ± 0.00002872 4.303 4.23/4.453 4.376 ± 0.3059
5 1342 1342/1342 1342 ± 0.00002305 5.6 5.299/5.743 5.535 ± 0.3328
6 1342 1342/1342 1342 ± 0.00002305 5.533 5.344/5.781 5.516 ± 0.3098
7 1342 1342/1342 1342 ± 0.00002305 5.613 5.412/5.723 5.571 ± 0.3055
8 1342 1342/1342 1342 ± 0.00002305 5.531 5.297/5.77 5.514 ± 0.3407
9 1342 1342/1342 1342 ± 0.00002305 5.883 5.649/6.104 5.836 ± 0.3453
10 1342 1342/1342 1342 ± 0.00002305 6.496 6.232/6.609 6.39 ± 0.3497
11 1342 1342/1342 1342 ± 0.00002305 6.717 6.459/6.843 6.638 ± 0.3755
12 1342 1342/1342 1342 ± 0.00002305 6.855 6.544/7.031 6.781 ± 0.4482
13 1342 1342/1342 1342 ± 0.00002305 7.318 7.066/7.658 7.291 ± 0.4753
14 1342 1342/1342 1342 ± 0.00002305 7.558 7.195/7.8 7.476 ± 0.4844
15 1342 1342/1342 1342 ± 0.00002305 7.121 6.793/7.436 7.091 ± 0.445
16 1342 1342/1342 1342 ± 0.00002305 6.415 6.199/6.75 6.431 ± 0.4451
17 1342 1342/1342 1342 ± 0.00002305 6.425 6.203/6.654 6.375 ± 0.4647
datacolumn
residual_data
output_dir
 
overwrite_modelcol
False
vis
VLASS2.2.sb41027522.eb41031268.59557.25108456019_split_split.ms
statwtmode
VLASS-SE
Start time
2025-06-11 11:04:41.487
End
2025-06-11 12:19:58.103
Duration
1:15:16.617
Note, WebLog generation is not included in the time.

CASA logs for stage 8