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

Statwt Summary Plot

VLASS2.1.sb38471682.eb38515236.59049.18662664352_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 5.391 5.198/6.117 5.509 ± 0.7134
ea02 1342 1342/1342 1342 ± 0.00004657 5.852 5.342/6.552 5.822 ± 0.8513
ea04 1342 1342/1342 1342 ± 0.00002443 5.461 5.176/6.134 5.586 ± 0.6996
ea05 1342 1342/1342 1342 ± 0.00001247 5.464 5.158/6.536 5.801 ± 0.7546
ea06 1342 1342/1342 1342 ± 0.0000358 5.4 4.735/5.724 5.217 ± 0.6627
ea07 1342 1342/1342 1342 ± 0.00004034 5.732 5.381/6.177 5.736 ± 0.7645
ea09 1342 1342/1342 1342 ± 0.00002703 5.268 4.892/5.721 5.261 ± 0.5937
ea10 1342 1342/1342 1342 ± 0.00004335 5.119 4.747/5.857 5.21 ± 0.6913
ea11 1342 1342/1342 1342 ± 0.00004277 5.837 5.418/6.551 5.845 ± 0.8238
ea12 1342 1342/1342 1342 ± 0.00004045 5.691 5.388/6.54 5.845 ± 0.8571
ea13 1342 1342/1342 1342 ± 0.00001603 5.829 5.486/6.252 5.881 ± 0.6652
ea14 1342 1342/1342 1342 ± 0.00003507 5.579 5.365/6.558 5.831 ± 0.8515
ea15 1342 1342/1342 1342 ± 0.00002595 5.681 5.429/6.476 5.803 ± 0.8494
ea16 1342 1342/1342 1342 ± 0.00002286 5.564 5.364/6.694 5.892 ± 0.9007
ea17 1342 1342/1342 1342 ± 0.0000428 5.843 5.396/6.795 5.948 ± 0.9012
ea18 1342 1342/1342 1342 ± 0.00004252 4.954 4.875/5.728 5.162 ± 0.6011
ea19 1342 1342/1342 1342 ± 0.00001688 5.691 5.506/6.568 5.959 ± 0.7809
ea20 1342 1342/1342 1342 ± 0.00004359 5.975 5.848/6.947 6.189 ± 0.9509
ea21 1342 1342/1342 1342 ± 0.00002775 5.431 5.188/6.199 5.585 ± 0.7088
ea22 1342 1342/1342 1342 ± 0.0000431 6.106 4.866/6.376 5.717 ± 0.8525
ea23 1342 1342/1342 1342 ± 0.00004195 5.747 5.4/6.653 5.889 ± 0.8924
ea24 1342 1342/1342 1342 ± 0.00001585 5.118 4.762/6.083 5.349 ± 0.6759
ea25 1342 1342/1342 1342 ± 0.00004312 5.653 5.202/6.29 5.666 ± 0.7884
ea26 1342 1342/1342 1342 ± 0.00002722 5.711 5.485/6.741 5.956 ± 0.8165
ea27 1342 1342/1342 1342 ± 0.00004169 5.667 5.326/6.549 5.756 ± 0.8022
ea28 1342 1342/1342 1342 ± 0.0000422 5.561 5.466/6.576 5.813 ± 0.8623
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 ± 0.0000235 5.343 5.161/5.496 5.275 ± 0.3061
3 1342 1342/1342 1342 ± 0.00003403 5.394 5.108/5.676 5.406 ± 0.3761
5 1342 1342/1342 1342 ± 0.00002543 5.471 5.284/5.735 5.444 ± 0.3419
6 1342 1342/1342 1342 ± 0.00002381 5.396 5.096/5.486 5.294 ± 0.2822
7 1342 1342/1342 1342 ± 0.00002413 5.397 5.253/5.538 5.36 ± 0.2863
8 1342 1342/1342 1342 ± 0.00002413 5.376 5.161/5.463 5.318 ± 0.3072
9 1342 1342/1342 1342 ± 0.00002683 5.528 5.333/5.73 5.503 ± 0.2985
10 1342 1342/1342 1342 ± 0.0000235 6.126 5.91/6.196 6.047 ± 0.2831
11 1342 1342/1342 1342 ± 0.0000235 6.297 6.095/6.505 6.274 ± 0.3079
12 1342 1342/1342 1342 ± 0.0000235 6.53 6.174/6.648 6.407 ± 0.3556
13 1342 1342/1342 1342 ± 0.0000235 6.737 6.496/7.023 6.715 ± 0.4035
14 1342 1342/1342 1342 ± 0.0000235 6.998 6.595/7.12 6.842 ± 0.4099
15 1342 1342/1342 1342 ± 0.00002352 6.432 6.141/6.642 6.359 ± 0.3802
16 1342 1342/1342 1342 ± 0.00005477 4.402 4.235/4.56 4.389 ± 0.2303
17 1342 1342/1342 1342 ± 0.00006022 4.342 4.183/4.585 4.379 ± 0.262
statwtmode
VLASS-SE
output_dir
 
datacolumn
residual_data
vis
VLASS2.1.sb38471682.eb38515236.59049.18662664352_split_split.ms
overwrite_modelcol
False
Start time
2025-01-14 10:01:11.888
End
2025-01-14 10:34:00.959
Duration
0:32:49.071
Note, WebLog generation is not included in the time.

CASA logs for stage 8