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 6.053 5.731/6.709 6.134 ± 0.7868
ea03 1342 1342/1342 1342 ± 0.00001592 5.696 5.18/6.307 5.718 ± 0.7025
ea04 1342 1342/1342 1342 ± 0 5.52 5.182/5.912 5.612 ± 0.4984
ea05 1342 1342/1342 1342 ± 0 5.873 5.453/6.503 6.003 ± 0.6622
ea06 1342 1342/1342 1342 ± 0 5.912 5.499/6.293 5.948 ± 0.5468
ea07 1342 1342/1342 1342 ± 0 5.803 5.359/5.978 5.823 ± 0.4841
ea08 1342 1342/1342 1342 ± 0.0000146 6.132 5.578/6.47 6.113 ± 0.6481
ea09 1342 1342/1342 1342 ± 0.000007432 5.87 5.422/6.631 6.014 ± 0.7067
ea10 1342 1342/1342 1342 ± 0 5.877 5.477/6.527 5.979 ± 0.5912
ea11 1342 1342/1342 1342 ± 0 6.099 5.391/6.525 6.037 ± 0.701
ea12 1342 1342/1342 1342 ± 0.000001685 5.932 5.579/6.556 6.084 ± 0.7496
ea13 1342 1342/1342 1342 ± 0 5.913 5.827/6.276 6.05 ± 0.4769
ea14 1342 1342/1342 1342 ± 0 5.807 5.503/6.461 6.011 ± 0.6485
ea15 1342 1342/1342 1342 ± 0 5.411 5.061/5.85 5.492 ± 0.5813
ea16 1342 1342/1342 1342 ± 0 6.093 5.782/6.553 6.201 ± 0.6493
ea17 1342 1342/1342 1342 ± 0 6.335 5.983/7.188 6.568 ± 0.654
ea18 1342 1342/1342 1342 ± 0 5.03 4.851/5.551 5.211 ± 0.4851
ea19 1342 1342/1342 1342 ± 0 6.146 5.856/6.823 6.352 ± 0.6476
ea20 1342 1342/1342 1342 ± 0 5.713 5.452/6.294 5.863 ± 0.607
ea21 1342 1342/1342 1342 ± 0 5.539 5.362/6.157 5.752 ± 0.5214
ea22 1342 1342/1342 1342 ± 0.000006221 5.804 5.344/6.319 5.896 ± 0.6004
ea23 1342 1342/1342 1342 ± 0 6.121 5.709/6.462 6.172 ± 0.6633
ea24 1342 1342/1342 1342 ± 0 5.96 5.246/6.361 5.822 ± 0.5608
ea25 1342 1342/1342 1342 ± 0 6.145 5.62/6.595 6.191 ± 0.7389
ea26 1342 1342/1342 1342 ± 0 6.253 5.831/6.887 6.379 ± 0.6311
ea27 1342 1342/1342 1342 ± 0 5.775 5.378/6.532 5.935 ± 0.6613
ea28 1342 1342/1342 1342 ± 0 5.939 5.642/6.576 6.111 ± 0.6401
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 ± 0.00002317 5.536 5.342/5.74 5.561 ± 0.2607
3 1342 1342/1342 1342 ± 0.00003027 4.985 4.81/5.17 4.968 ± 0.3805
4 1342 1342/1342 1342 ± 0.00002317 5.379 5.192/5.702 5.396 ± 0.3517
5 1342 1342/1342 1342 ± 0.00002317 5.548 5.294/5.674 5.512 ± 0.3144
6 1342 1342/1342 1342 ± 0.00002317 5.515 5.308/5.731 5.495 ± 0.255
7 1342 1342/1342 1342 ± 0.00002317 5.517 5.344/5.712 5.515 ± 0.2595
8 1342 1342/1342 1342 ± 0.00002317 5.427 5.241/5.608 5.435 ± 0.292
9 1342 1342/1342 1342 ± 0.00002317 5.75 5.533/5.923 5.697 ± 0.2894
10 1342 1342/1342 1342 ± 0.00002317 6.181 5.968/6.316 6.084 ± 0.3007
11 1342 1342/1342 1342 ± 0.00002317 6.331 6.199/6.504 6.295 ± 0.2916
12 1342 1342/1342 1342 ± 0.00002317 6.478 6.255/6.616 6.439 ± 0.3492
13 1342 1342/1342 1342 ± 0.00002317 6.924 6.643/7.221 6.912 ± 0.3733
14 1342 1342/1342 1342 ± 0.00002317 7.141 6.906/7.378 7.117 ± 0.3698
15 1342 1342/1342 1342 ± 0.00002317 6.814 6.571/7.127 6.826 ± 0.3547
16 1342 1342/1342 1342 ± 0.00002317 6.233 5.895/6.479 6.219 ± 0.3854
17 1342 1342/1342 1342 ± 0.00002317 6.054 5.895/6.39 6.142 ± 0.3671
output_dir
 
datacolumn
residual_data
overwrite_modelcol
False
vis
VLASS2.2.sb40869292.eb40982614.59542.13818863426_split_split.ms
statwtmode
VLASS-SE
Start time
2025-05-19 05:32:26.692
End
2025-05-19 05:58:03.578
Duration
0:25:36.886
Note, WebLog generation is not included in the time.

CASA logs for stage 8