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

Statwt Summary Plot

VLASS2.2.sb40869292.eb40982614.59542.13818863426_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 6.123 5.836/6.603 6.173 ± 0.7366
ea03 1342 1342/1342 1342 ± 0.00001312 5.623 5.266/6.383 5.779 ± 0.6951
ea04 1342 1342/1342 1342 ± 0 5.623 5.272/6.126 5.724 ± 0.583
ea05 1342 1342/1342 1342 ± 0 5.925 5.669/6.598 6.127 ± 0.6565
ea06 1342 1342/1342 1342 ± 0 6.033 5.633/6.415 6.089 ± 0.5278
ea07 1342 1342/1342 1342 ± 0 5.996 5.49/6.197 5.964 ± 0.5217
ea08 1342 1342/1342 1342 ± 0.00001207 6.091 5.656/6.521 6.151 ± 0.634
ea09 1342 1342/1342 1342 ± 0.00000614 6.004 5.526/6.541 6.078 ± 0.7054
ea10 1342 1342/1342 1342 ± 0 5.98 5.61/6.637 6.09 ± 0.5722
ea11 1342 1342/1342 1342 ± 0.0000111 6.14 5.475/6.596 6.114 ± 0.6939
ea12 1342 1342/1342 1342 ± 0.000001162 6.049 5.699/6.693 6.22 ± 0.764
ea13 1342 1342/1342 1342 ± 0 5.995 5.775/6.38 6.12 ± 0.4804
ea14 1342 1342/1342 1342 ± 0 6.074 5.621/6.566 6.153 ± 0.649
ea15 1342 1342/1342 1342 ± 0 5.535 5.171/5.935 5.596 ± 0.5746
ea16 1342 1342/1342 1342 ± 0 6.203 5.849/6.72 6.305 ± 0.6822
ea17 1342 1342/1342 1342 ± 0 6.575 6.206/7.299 6.752 ± 0.642
ea18 1342 1342/1342 1342 ± 0 5.13 4.892/5.61 5.275 ± 0.4743
ea19 1342 1342/1342 1342 ± 0 6.374 5.95/6.902 6.463 ± 0.6516
ea20 1342 1342/1342 1342 ± 0 5.904 5.593/6.443 6.024 ± 0.6263
ea21 1342 1342/1342 1342 ± 0 5.727 5.559/6.306 5.948 ± 0.5345
ea22 1342 1342/1342 1342 ± 0.000002845 5.899 5.525/6.436 6 ± 0.6177
ea23 1342 1342/1342 1342 ± 0.000001162 6.248 5.875/6.608 6.325 ± 0.6729
ea24 1342 1342/1342 1342 ± 0.00002225 6.088 5.377/6.519 5.837 ± 0.8017
ea25 1342 1342/1342 1342 ± 0 6.295 5.743/6.897 6.36 ± 0.787
ea26 1342 1342/1342 1342 ± 0.000005539 6.381 5.942/7.056 6.463 ± 0.7088
ea27 1342 1342/1342 1342 ± 0 5.864 5.547/6.633 6.051 ± 0.6373
ea28 1342 1342/1342 1342 ± 0 5.949 5.702/6.657 6.183 ± 0.6471
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 5.729 5.467/5.945 5.718 ± 0.2796
3 1342 1342/1342 1342 ± 0.00003324 5.119 4.855/5.244 5.039 ± 0.4995
4 1342 1342/1342 1342 ± 0.00002305 5.53 5.271/5.777 5.528 ± 0.384
5 1342 1342/1342 1342 ± 0.00002305 5.697 5.438/5.885 5.665 ± 0.328
6 1342 1342/1342 1342 ± 0.00002305 5.617 5.441/5.787 5.587 ± 0.2608
7 1342 1342/1342 1342 ± 0.00002305 5.619 5.414/5.797 5.609 ± 0.2693
8 1342 1342/1342 1342 ± 0.00002305 5.529 5.304/5.705 5.52 ± 0.3103
9 1342 1342/1342 1342 ± 0.00002305 5.831 5.632/6.021 5.79 ± 0.3032
10 1342 1342/1342 1342 ± 0.00002305 6.253 6.104/6.403 6.187 ± 0.3085
11 1342 1342/1342 1342 ± 0.00002305 6.439 6.304/6.601 6.405 ± 0.2993
12 1342 1342/1342 1342 ± 0.00002305 6.608 6.355/6.705 6.553 ± 0.3618
13 1342 1342/1342 1342 ± 0.00002305 7.019 6.793/7.329 7.046 ± 0.3833
14 1342 1342/1342 1342 ± 0.00002305 7.265 7.079/7.573 7.271 ± 0.3897
15 1342 1342/1342 1342 ± 0.00002305 6.901 6.73/7.237 6.944 ± 0.3612
16 1342 1342/1342 1342 ± 0.00002305 6.226 6.003/6.55 6.275 ± 0.3828
17 1342 1342/1342 1342 ± 0.00002305 6.207 5.939/6.48 6.22 ± 0.3675
output_dir
 
datacolumn
residual_data
vis
VLASS2.2.sb40869292.eb40982614.59542.13818863426_split_split.ms
statwtmode
VLASS-SE
overwrite_modelcol
False
Start time
2025-04-23 06:48:43.404
End
2025-04-23 07:54:02.971
Duration
1:05:19.567
Note, WebLog generation is not included in the time.

CASA logs for stage 8