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 5.549 5.034/6.267 5.458 ± 1.046
ea02 1342 1342/1342 1342 ± 0.00003442 5.607 5.306/6.476 5.611 ± 0.9975
ea03 1342 1342/1342 1342 ± 0.000002929 5.426 5.279/6.472 5.695 ± 0.7747
ea04 1342 1342/1342 1342 ± 0.0000454 5.214 5.049/6.076 5.243 ± 0.8083
ea05 1342 1342/1342 1342 ± 0.00005081 5.386 4.849/6.481 5.415 ± 1.034
ea06 1342 1342/1342 1342 ± 0.00002793 5.152 4.838/6.022 5.228 ± 0.8398
ea07 1342 1342/1342 1342 ± 0.00004146 5.242 5.063/6.33 5.447 ± 0.9833
ea08 1342 1342/1342 1342 ± 0.00001296 5.814 5.523/6.834 5.855 ± 1.058
ea09 1342 1342/1342 1342 ± 0.00004812 5.155 4.744/6.119 5.167 ± 0.9008
ea10 1342 1342/1342 1342 ± 0.00004626 5.073 4.683/5.961 5.051 ± 0.8896
ea11 1342 1342/1342 1342 ± 0.00005208 5.236 4.501/6.094 5.065 ± 1.021
ea13 1342 1342/1342 1342 ± 0.00002071 5.303 5.116/6.048 5.371 ± 0.6296
ea14 1342 1342/1342 1342 ± 0.00004939 5.53 5.223/6.53 5.543 ± 1.03
ea15 1342 1342/1342 1342 ± 0.00005039 5.555 5.004/6.64 5.554 ± 1.054
ea16 1342 1342/1342 1342 ± 0.00002381 5.76 5.393/6.562 5.767 ± 0.9942
ea17 1342 1342/1342 1342 ± 0.00004234 5.736 5.354/6.686 5.746 ± 1.122
ea18 1342 1342/1342 1342 ± 0.00001011 5.838 5.602/6.878 5.958 ± 1.038
ea19 1342 1342/1342 1342 ± 0.00004266 5.504 5.34/6.452 5.477 ± 1.027
ea20 1342 1342/1342 1342 ± 0.00003632 5.394 5.266/6.122 5.477 ± 0.7446
ea21 1342 1342/1342 1342 ± 0.00000641 5.079 4.892/5.792 5.188 ± 0.6214
ea22 1342 1342/1342 1342 ± 0.00002368 5.711 5.292/6.562 5.69 ± 1.004
ea23 1342 1342/1342 1342 ± 0.00004786 5.645 5.109/6.427 5.54 ± 1.028
ea24 1342 1342/1342 1342 ± 0.00001311 4.928 4.806/5.912 5.302 ± 0.6809
ea25 1342 1342/1342 1342 ± 0.0000127 5.717 5.407/6.957 6.011 ± 0.9093
ea27 1342 1342/1342 1342 ± 0.0000174 5.294 5.048/6.449 5.427 ± 0.9483
ea28 1342 1342/1342 1342 ± 0.000002269 5.576 5.513/6.457 5.763 ± 0.7691
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 5.304 5.076/5.44 5.248 ± 0.2745
5 1342 1342/1342 1342 ± 0.00003159 5.186 4.848/5.432 5.182 ± 0.3846
6 1342 1342/1342 1342 ± 0.00002348 5.308 5.07/5.526 5.289 ± 0.2806
7 1342 1342/1342 1342 ± 0.00002348 5.341 5.167/5.506 5.305 ± 0.2616
8 1342 1342/1342 1342 ± 0.00002348 5.356 5.104/5.521 5.307 ± 0.2842
9 1342 1342/1342 1342 ± 0.00002348 5.538 5.283/5.785 5.531 ± 0.3159
10 1342 1342/1342 1342 ± 0.00002392 6.124 6.016/6.316 6.128 ± 0.2807
11 1342 1342/1342 1342 ± 0.00002348 6.463 6.125/6.57 6.399 ± 0.2697
12 1342 1342/1342 1342 ± 0.00002348 6.619 6.389/6.82 6.561 ± 0.3244
13 1342 1342/1342 1342 ± 0.00002353 6.677 6.325/6.956 6.654 ± 0.42
14 1342 1342/1342 1342 ± 0.00005602 5.089 4.602/5.684 5.193 ± 0.7217
15 1342 1342/1342 1342 ± 0.00002348 6.695 6.148/7.021 6.594 ± 0.5167
16 1342 1342/1342 1342 ± 0.00006064 3.722 3.568/4.127 3.873 ± 0.4503
17 1342 1342/1342 1342 ± 0.00006082 3.668 3.472/4.001 3.741 ± 0.3602
vis
VLASS3.2.sb45544419.eb45877457.60435.173042256945_split_split.ms
statwtmode
VLASS-SE
overwrite_modelcol
False
output_dir
 
datacolumn
residual_data
Start time
2025-07-19 09:21:44.713
End
2025-07-19 10:12:04.753
Duration
0:50:20.039
Note, WebLog generation is not included in the time.

CASA logs for stage 8