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 5.576 5.192/6.269 5.499 ± 1.057
ea02 1342 1342/1342 1342 ± 0.00003452 5.714 5.309/6.504 5.645 ± 0.9971
ea03 1342 1342/1342 1342 ± 0.00000262 5.416 5.335/6.521 5.715 ± 0.7956
ea04 1342 1342/1342 1342 ± 0.00004906 5.262 4.9/6.115 5.245 ± 0.8714
ea05 1342 1342/1342 1342 ± 0.00005035 5.44 5.127/6.486 5.46 ± 1.019
ea06 1342 1342/1342 1342 ± 0.00002819 5.128 4.838/6.068 5.238 ± 0.8449
ea07 1342 1342/1342 1342 ± 0.0000416 5.25 5.121/6.308 5.469 ± 0.9783
ea08 1342 1342/1342 1342 ± 0.00001174 5.965 5.605/6.901 5.933 ± 1.074
ea09 1342 1342/1342 1342 ± 0.00004789 5.161 4.814/6.162 5.223 ± 0.9128
ea10 1342 1342/1342 1342 ± 0.00004483 5.122 4.626/5.952 5.063 ± 0.8584
ea11 1342 1342/1342 1342 ± 0.00005178 5.177 4.513/6.088 5.052 ± 1.013
ea13 1342 1342/1342 1342 ± 0.00002153 5.467 5.251/6.289 5.58 ± 0.6664
ea14 1342 1342/1342 1342 ± 0.00004907 5.476 5.256/6.591 5.565 ± 1.003
ea15 1342 1342/1342 1342 ± 0.00005031 5.533 5.079/6.585 5.524 ± 1.044
ea16 1342 1342/1342 1342 ± 0.00002504 5.779 5.414/6.556 5.769 ± 0.9945
ea17 1342 1342/1342 1342 ± 0.0000423 5.756 5.409/6.67 5.769 ± 1.116
ea18 1342 1342/1342 1342 ± 0.00001003 6.039 5.695/6.97 6.064 ± 1.059
ea19 1342 1342/1342 1342 ± 0.00004258 5.437 5.316/6.44 5.482 ± 0.987
ea20 1342 1342/1342 1342 ± 0.00003576 5.571 5.46/6.29 5.662 ± 0.7783
ea21 1342 1342/1342 1342 ± 0.000005997 5.114 4.867/5.771 5.183 ± 0.6232
ea22 1342 1342/1342 1342 ± 0.00002297 5.903 5.346/6.68 5.799 ± 1.03
ea23 1342 1342/1342 1342 ± 0.00004779 5.573 5.146/6.301 5.473 ± 0.9826
ea24 1342 1342/1342 1342 ± 0.00001351 5.187 5.059/6.148 5.54 ± 0.715
ea25 1342 1342/1342 1342 ± 0.00001277 5.888 5.428/6.994 6.048 ± 0.9263
ea27 1342 1342/1342 1342 ± 0.00001795 5.271 5.059/6.456 5.436 ± 0.9396
ea28 1342 1342/1342 1342 ± 0.000002929 5.769 5.619/6.742 5.954 ± 0.7999
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 5.369 5.077/5.454 5.285 ± 0.2794
5 1342 1342/1342 1342 ± 0.00002895 5.322 5.08/5.579 5.359 ± 0.3936
6 1342 1342/1342 1342 ± 0.00002349 5.383 5.148/5.535 5.338 ± 0.2866
7 1342 1342/1342 1342 ± 0.00002349 5.365 5.167/5.543 5.329 ± 0.2678
8 1342 1342/1342 1342 ± 0.00002349 5.345 5.148/5.564 5.333 ± 0.2812
9 1342 1342/1342 1342 ± 0.00002349 5.518 5.363/5.819 5.566 ± 0.3142
10 1342 1342/1342 1342 ± 0.00002394 6.231 5.929/6.296 6.148 ± 0.3012
11 1342 1342/1342 1342 ± 0.00002349 6.494 6.264/6.648 6.445 ± 0.2819
12 1342 1342/1342 1342 ± 0.00002349 6.626 6.397/6.837 6.611 ± 0.3327
13 1342 1342/1342 1342 ± 0.00002354 6.738 6.423/7.04 6.731 ± 0.4281
14 1342 1342/1342 1342 ± 0.00005549 5.189 4.653/5.825 5.296 ± 0.7552
15 1342 1342/1342 1342 ± 0.00002349 6.722 6.256/7.074 6.656 ± 0.4891
16 1342 1342/1342 1342 ± 0.00006057 3.756 3.607/4.153 3.915 ± 0.464
17 1342 1342/1342 1342 ± 0.00006067 3.672 3.487/4 3.761 ± 0.3936
output_dir
 
datacolumn
residual_data
overwrite_modelcol
False
vis
VLASS3.2.sb45544419.eb45877457.60435.173042256945_split_split.ms
statwtmode
VLASS-SE
Start time
2025-07-19 13:46:42.989
End
2025-07-19 14:33:57.826
Duration
0:47:14.836
Note, WebLog generation is not included in the time.

CASA logs for stage 8