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

Statwt Summary Plot

VLASS3.2.sb45544419.eb45877457.60435.173042256945_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 5.541 5.28/6.242 5.51 ± 0.9438
ea02 1342 1342/1342 1342 ± 0.00004075 5.56 5.271/6.511 5.569 ± 0.9571
ea03 1342 1342/1342 1342 ± 0.000003587 5.35 5.231/6.049 5.565 ± 0.7571
ea04 1342 1342/1342 1342 ± 0.00004612 5.077 4.626/5.992 5.134 ± 0.7882
ea05 1342 1342/1342 1342 ± 0.00004796 5.325 5.035/6.409 5.421 ± 0.9484
ea06 1342 1342/1342 1342 ± 0.00001995 4.958 4.757/5.953 5.111 ± 0.7396
ea07 1342 1342/1342 1342 ± 0.00004175 5.168 4.999/6.292 5.379 ± 0.9404
ea08 1342 1342/1342 1342 ± 0.00002678 5.774 5.257/6.862 5.777 ± 1.085
ea09 1342 1342/1342 1342 ± 0.00004457 5.164 4.829/5.906 5.218 ± 0.8667
ea10 1342 1342/1342 1342 ± 0.00004352 4.984 4.605/5.916 5.01 ± 0.8269
ea11 1342 1342/1342 1342 ± 0.00005152 5.199 4.501/6.086 5.096 ± 0.9572
ea13 1342 1342/1342 1342 ± 0.000009005 5.407 5.126/6.21 5.489 ± 0.6666
ea14 1342 1342/1342 1342 ± 0.00004606 5.424 5.077/6.565 5.549 ± 0.9566
ea15 1342 1342/1342 1342 ± 0.00004905 5.55 5.267/6.696 5.646 ± 1.016
ea16 1342 1342/1342 1342 ± 0.00002094 5.675 5.297/6.512 5.644 ± 0.9097
ea17 1342 1342/1342 1342 ± 0.00004174 5.676 5.221/6.639 5.666 ± 1.066
ea18 1342 1342/1342 1342 ± 0.00001782 5.773 5.475/6.884 5.848 ± 1.088
ea19 1342 1342/1342 1342 ± 0.00003626 5.298 4.914/6.332 5.378 ± 0.8803
ea20 1342 1342/1342 1342 ± 0.000022 5.325 5.204/6.08 5.46 ± 0.7165
ea21 1342 1342/1342 1342 ± 0.000006091 5.149 4.893/5.672 5.162 ± 0.618
ea22 1342 1342/1342 1342 ± 0.0000363 5.581 5.099/6.537 5.584 ± 1.012
ea23 1342 1342/1342 1342 ± 0.00004489 5.586 5.116/6.431 5.534 ± 0.9626
ea24 1342 1342/1342 1342 ± 0.000003283 5.146 5.058/6.468 5.528 ± 0.7617
ea25 1342 1342/1342 1342 ± 0.00001124 5.713 5.308/6.687 5.923 ± 0.8531
ea27 1342 1342/1342 1342 ± 0.0000133 5.147 4.733/6.178 5.28 ± 0.8782
ea28 1342 1342/1342 1342 ± 0.000006207 5.684 5.593/6.387 5.892 ± 0.8
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 ± 0.00002348 5.225 4.939/5.295 5.147 ± 0.2782
5 1342 1342/1342 1342 ± 0.00002908 5.215 5.002/5.479 5.226 ± 0.3547
6 1342 1342/1342 1342 ± 0.00002348 5.17 5.047/5.452 5.225 ± 0.2748
7 1342 1342/1342 1342 ± 0.00002348 5.281 5.137/5.47 5.265 ± 0.259
8 1342 1342/1342 1342 ± 0.00002348 5.226 5.06/5.525 5.257 ± 0.2783
9 1342 1342/1342 1342 ± 0.00002348 5.454 5.321/5.764 5.498 ± 0.3033
10 1342 1342/1342 1342 ± 0.00002392 6.143 5.953/6.324 6.107 ± 0.2965
11 1342 1342/1342 1342 ± 0.00002348 6.423 6.242/6.569 6.4 ± 0.2822
12 1342 1342/1342 1342 ± 0.00002348 6.585 6.358/6.779 6.567 ± 0.3238
13 1342 1342/1342 1342 ± 0.00002349 6.702 6.405/6.921 6.679 ± 0.3977
14 1342 1342/1342 1342 ± 0.00004837 4.925 4.619/5.43 5.114 ± 0.6666
15 1342 1342/1342 1342 ± 0.00002348 6.416 5.982/6.831 6.374 ± 0.5215
16 1342 1342/1342 1342 ± 0.00006072 3.854 3.732/4.202 3.99 ± 0.3909
17 1342 1342/1342 1342 ± 0.00006074 3.738 3.569/4.042 3.822 ± 0.3338
datacolumn
residual_data
statwtmode
VLASS-SE
vis
VLASS3.2.sb45544419.eb45877457.60435.173042256945_split_split.ms
overwrite_modelcol
False
output_dir
 
Start time
2025-07-19 20:26:45.458
End
2025-07-19 21:31:19.839
Duration
1:04:34.381
Note, WebLog generation is not included in the time.

CASA logs for stage 8