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 6.118 5.83/6.602 6.155 ± 0.769
ea03 1342 1342/1342 1342 ± 0.00001536 5.638 5.265/6.384 5.76 ± 0.7047
ea04 1342 1342/1342 1342 ± 0 5.602 5.278/6.179 5.713 ± 0.5678
ea05 1342 1342/1342 1342 ± 0 5.947 5.637/6.578 6.11 ± 0.6546
ea06 1342 1342/1342 1342 ± 0 6.015 5.617/6.397 6.071 ± 0.5265
ea07 1342 1342/1342 1342 ± 0 5.966 5.464/6.146 5.934 ± 0.5205
ea08 1342 1342/1342 1342 ± 0.00001525 6.116 5.661/6.522 6.144 ± 0.6417
ea09 1342 1342/1342 1342 ± 0.000007154 5.994 5.488/6.57 6.064 ± 0.7092
ea10 1342 1342/1342 1342 ± 0 5.971 5.594/6.61 6.067 ± 0.5867
ea11 1342 1342/1342 1342 ± 0.00001032 6.128 5.46/6.598 6.107 ± 0.6992
ea12 1342 1342/1342 1342 ± 0.00000185 6.043 5.7/6.656 6.201 ± 0.7604
ea13 1342 1342/1342 1342 ± 0.000001865 6 5.873/6.393 6.133 ± 0.4861
ea14 1342 1342/1342 1342 ± 0 6.041 5.624/6.546 6.119 ± 0.6628
ea15 1342 1342/1342 1342 ± 0.000001511 5.537 5.14/5.916 5.582 ± 0.5768
ea16 1342 1342/1342 1342 ± 0 6.192 5.842/6.708 6.292 ± 0.674
ea17 1342 1342/1342 1342 ± 0 6.562 6.221/7.306 6.764 ± 0.6414
ea18 1342 1342/1342 1342 ± 0 5.122 4.888/5.605 5.268 ± 0.4791
ea19 1342 1342/1342 1342 ± 0 6.337 5.933/6.894 6.447 ± 0.6544
ea20 1342 1342/1342 1342 ± 0 5.91 5.588/6.412 6.007 ± 0.6271
ea21 1342 1342/1342 1342 ± 0 5.682 5.507/6.268 5.899 ± 0.5235
ea22 1342 1342/1342 1342 ± 0.00001032 5.883 5.506/6.431 5.986 ± 0.6261
ea23 1342 1342/1342 1342 ± 0 6.242 5.849/6.584 6.306 ± 0.6765
ea24 1342 1342/1342 1342 ± 0.00002445 6.043 5.327/6.456 5.777 ± 0.8155
ea25 1342 1342/1342 1342 ± 0 6.285 5.742/6.825 6.328 ± 0.7989
ea26 1342 1342/1342 1342 ± 0 6.358 5.93/7.006 6.492 ± 0.6375
ea27 1342 1342/1342 1342 ± 0 5.835 5.525/6.612 6.023 ± 0.649
ea28 1342 1342/1342 1342 ± 0 6.007 5.703/6.653 6.185 ± 0.6471
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 ± 0.00002306 5.718 5.491/5.97 5.712 ± 0.281
3 1342 1342/1342 1342 ± 0.00003615 5.037 4.802/5.206 4.967 ± 0.5305
4 1342 1342/1342 1342 ± 0.00002306 5.514 5.261/5.798 5.514 ± 0.3887
5 1342 1342/1342 1342 ± 0.00002306 5.67 5.378/5.847 5.641 ± 0.3313
6 1342 1342/1342 1342 ± 0.00002306 5.595 5.421/5.778 5.573 ± 0.2623
7 1342 1342/1342 1342 ± 0.00002306 5.606 5.403/5.787 5.597 ± 0.2739
8 1342 1342/1342 1342 ± 0.00002306 5.488 5.289/5.686 5.506 ± 0.3121
9 1342 1342/1342 1342 ± 0.00002306 5.818 5.609/5.99 5.778 ± 0.3052
10 1342 1342/1342 1342 ± 0.00002306 6.248 6.057/6.41 6.173 ± 0.3125
11 1342 1342/1342 1342 ± 0.00002306 6.409 6.291/6.585 6.387 ± 0.3041
12 1342 1342/1342 1342 ± 0.00002306 6.587 6.365/6.694 6.534 ± 0.3631
13 1342 1342/1342 1342 ± 0.00002306 7.003 6.772/7.313 7.026 ± 0.386
14 1342 1342/1342 1342 ± 0.00002306 7.254 7.06/7.534 7.245 ± 0.3923
15 1342 1342/1342 1342 ± 0.00002306 6.879 6.703/7.227 6.923 ± 0.3635
16 1342 1342/1342 1342 ± 0.00002306 6.216 5.951/6.493 6.27 ± 0.3751
17 1342 1342/1342 1342 ± 0.00002306 6.194 5.953/6.469 6.225 ± 0.3591
vis
VLASS2.2.sb40869292.eb40982614.59542.13818863426_split_split.ms
output_dir
 
statwtmode
VLASS-SE
datacolumn
residual_data
overwrite_modelcol
False
Start time
2025-04-24 10:50:08.135
End
2025-04-24 12:08:59.675
Duration
1:18:51.541
Note, WebLog generation is not included in the time.

CASA logs for stage 8