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 5.527 5.103/6.253 5.499 ± 1.077
ea02 1342 1342/1342 1342 ± 0.0000374 5.754 5.322/6.486 5.633 ± 0.995
ea03 1342 1342/1342 1342 ± 0.000004899 5.413 5.278/6.724 5.774 ± 0.8648
ea04 1342 1342/1342 1342 ± 0.00004947 5.118 4.769/5.996 5.156 ± 0.8406
ea05 1342 1342/1342 1342 ± 0.00005158 5.376 5.067/6.402 5.437 ± 1.03
ea06 1342 1342/1342 1342 ± 0.00003134 5.143 4.821/6.053 5.281 ± 0.8518
ea07 1342 1342/1342 1342 ± 0.0000426 5.217 5.075/6.279 5.427 ± 1.009
ea08 1342 1342/1342 1342 ± 0.0000139 5.846 5.562/6.875 5.897 ± 1.044
ea09 1342 1342/1342 1342 ± 0.00004859 5.203 4.834/6.209 5.242 ± 0.9535
ea10 1342 1342/1342 1342 ± 0.00004896 4.993 4.67/5.927 5.027 ± 0.8523
ea11 1342 1342/1342 1342 ± 0.00005213 5.243 4.656/6.115 5.107 ± 1.02
ea13 1342 1342/1342 1342 ± 0.00003153 5.421 5.268/6.211 5.465 ± 0.7554
ea14 1342 1342/1342 1342 ± 0.00005109 5.478 5.184/6.552 5.572 ± 1.038
ea15 1342 1342/1342 1342 ± 0.0000504 5.583 5.221/6.685 5.627 ± 1.078
ea16 1342 1342/1342 1342 ± 0.00002956 5.81 5.346/6.541 5.836 ± 1.031
ea17 1342 1342/1342 1342 ± 0.00004415 5.731 5.284/6.621 5.733 ± 1.115
ea18 1342 1342/1342 1342 ± 0.00001159 5.873 5.684/6.889 6.007 ± 1.018
ea19 1342 1342/1342 1342 ± 0.00004344 5.413 5.214/6.372 5.46 ± 0.9494
ea20 1342 1342/1342 1342 ± 0.00004388 5.363 5.177/6.214 5.444 ± 0.8702
ea21 1342 1342/1342 1342 ± 0.000008958 5.168 4.959/5.929 5.332 ± 0.6884
ea22 1342 1342/1342 1342 ± 0.00002829 5.733 5.235/6.548 5.684 ± 1.005
ea23 1342 1342/1342 1342 ± 0.00004985 5.601 5.121/6.366 5.536 ± 1.017
ea24 1342 1342/1342 1342 ± 0.00002028 5.105 4.815/6.062 5.39 ± 0.7961
ea25 1342 1342/1342 1342 ± 0.00001849 5.764 5.416/6.973 6.116 ± 1.029
ea27 1342 1342/1342 1342 ± 0.00002368 5.253 5.02/6.392 5.408 ± 0.9452
ea28 1342 1342/1342 1342 ± 0.000004899 5.673 5.606/6.749 5.84 ± 0.8967
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 ± 0.00002349 5.31 5.036/5.39 5.237 ± 0.2652
5 1342 1342/1342 1342 ± 0.00003262 5.16 4.963/5.421 5.221 ± 0.3689
6 1342 1342/1342 1342 ± 0.00002349 5.273 5.068/5.507 5.264 ± 0.2757
7 1342 1342/1342 1342 ± 0.00002349 5.34 5.107/5.536 5.306 ± 0.2576
8 1342 1342/1342 1342 ± 0.00002349 5.277 5.095/5.56 5.297 ± 0.2826
9 1342 1342/1342 1342 ± 0.00002349 5.525 5.374/5.8 5.565 ± 0.3057
10 1342 1342/1342 1342 ± 0.00002392 6.149 5.949/6.275 6.111 ± 0.2927
11 1342 1342/1342 1342 ± 0.00002348 6.397 6.238/6.552 6.406 ± 0.2678
12 1342 1342/1342 1342 ± 0.00002348 6.594 6.35/6.798 6.574 ± 0.3237
13 1342 1342/1342 1342 ± 0.00002375 6.726 6.415/7.086 6.761 ± 0.4097
14 1342 1342/1342 1342 ± 0.00005776 5.319 4.97/5.909 5.516 ± 0.7653
15 1342 1342/1342 1342 ± 0.00002348 6.804 6.307/7.135 6.737 ± 0.4629
16 1342 1342/1342 1342 ± 0.00005884 3.698 3.537/4 3.813 ± 0.4129
17 1342 1342/1342 1342 ± 0.00005921 3.663 3.455/3.968 3.717 ± 0.4203
datacolumn
residual_data
statwtmode
VLASS-SE
overwrite_modelcol
False
vis
VLASS3.2.sb45544419.eb45877457.60435.173042256945_split_split.ms
output_dir
 
Start time
2025-07-19 11:07:25.130
End
2025-07-19 11:55:05.019
Duration
0:47:39.889
Note, WebLog generation is not included in the time.

CASA logs for stage 8