Calculate data weights based on st. dev. within each spw.

Statwt Summary Plot

VLASS2.1.sb38598618.eb38624961.59090.97292246528_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 5.178 4.962/5.76 5.394 ± 0.504
ea02 1342 1342/1342 1342 ± 0 5.535 5.199/6.2 5.675 ± 0.6142
ea04 1342 1342/1342 1342 ± 0 5.156 4.836/5.838 5.371 ± 0.5659
ea05 1342 1342/1342 1342 ± 0 5.526 5.086/6.039 5.613 ± 0.5934
ea06 1342 1342/1342 1342 ± 0 4.795 4.519/5.169 4.869 ± 0.3999
ea07 1342 1342/1342 1342 ± 0 5.602 5.225/5.968 5.673 ± 0.5523
ea08 1342 1342/1342 1342 ± 0 5.503 5.258/6.38 5.818 ± 0.6581
ea09 1342 1342/1342 1342 ± 0 5.512 5.035/6.122 5.6 ± 0.6213
ea10 1342 1342/1342 1342 ± 0.00000809 5.618 5.01/6.268 5.637 ± 0.6715
ea11 0 N/A 0 ± N/A 0 N/A 0 ± N/A
ea12 1342 1342/1342 1342 ± 0 5.458 5.049/6.139 5.671 ± 0.6475
ea13 1342 1342/1342 1342 ± 0 5.719 5.399/6.1 5.827 ± 0.4912
ea14 1342 1342/1342 1342 ± 0 5.513 4.975/6.128 5.576 ± 0.6135
ea15 1342 1342/1342 1342 ± 0 5.277 4.778/5.941 5.412 ± 0.6799
ea16 1342 1342/1342 1342 ± 0 5.846 5.347/6.459 5.928 ± 0.7088
ea17 1342 1342/1342 1342 ± 0.000006309 5.589 5.164/6.081 5.721 ± 0.6366
ea18 1342 1342/1342 1342 ± 0 4.814 4.493/5.376 4.943 ± 0.5244
ea19 1342 1342/1342 1342 ± 0 5.647 5.229/6.282 5.786 ± 0.5853
ea20 1342 1342/1342 1342 ± 0 5.803 5.31/6.443 5.915 ± 0.6678
ea21 1342 1342/1342 1342 ± 0 5.42 5.098/6.052 5.578 ± 0.5721
ea22 1342 1342/1342 1342 ± 0 5.469 5.072/6.14 5.596 ± 0.6238
ea23 1342 1342/1342 1342 ± 0 5.719 5.172/6.192 5.792 ± 0.6566
ea25 1342 1342/1342 1342 ± 0 5.36 4.892/5.814 5.408 ± 0.6065
ea26 1342 1342/1342 1342 ± 0 5.823 5.35/6.445 5.909 ± 0.6461
ea27 1342 1342/1342 1342 ± 0.0000387 5.41 4.943/6.076 5.508 ± 0.5783
ea28 1342 1342/1342 1342 ± 0 5.377 5.104/6.217 5.604 ± 0.636
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 ± 0.00002461 4.953 4.849/5.213 5.005 ± 0.2359
3 1342 1342/1342 1342 ± 0.00002501 4.937 4.779/5.137 4.933 ± 0.2419
4 1342 1342/1342 1342 ± 0.00002505 5.056 4.915/5.261 5.025 ± 0.2975
5 1342 1342/1342 1342 ± 0.00002451 5.109 4.898/5.184 5.061 ± 0.2959
6 1342 1342/1342 1342 ± 0.00002451 5.052 4.894/5.235 5.036 ± 0.2733
7 1342 1342/1342 1342 ± 0.00002451 5.058 4.944/5.218 5.073 ± 0.2306
8 1342 1342/1342 1342 ± 0.00002451 5.13 4.879/5.24 5.053 ± 0.2655
9 1342 1342/1342 1342 ± 0.00002451 5.376 5.241/5.597 5.352 ± 0.2872
10 1342 1342/1342 1342 ± 0.00002451 5.762 5.672/5.978 5.772 ± 0.3086
11 1342 1342/1342 1342 ± 0.00002451 6.073 5.888/6.14 5.987 ± 0.3182
12 1342 1342/1342 1342 ± 0.00002451 6.218 6.008/6.385 6.154 ± 0.3346
13 1342 1342/1342 1342 ± 0.00002451 6.576 6.483/6.752 6.553 ± 0.3454
14 1342 1342/1342 1342 ± 0.00002451 6.807 6.547/6.899 6.707 ± 0.3843
15 1342 1342/1342 1342 ± 0.00002451 6.322 6.144/6.492 6.273 ± 0.3421
16 1342 1342/1342 1342 ± 0.00003369 5.755 5.546/5.96 5.734 ± 0.3
17 1342 1342/1342 1342 ± 0.00003304 5.778 5.564/5.978 5.76 ± 0.3126
output_dir
 
datacolumn
residual_data
overwrite_modelcol
False
vis
VLASS2.1.sb38598618.eb38624961.59090.97292246528_split_split.ms
statwtmode
VLASS-SE
Start time
2025-02-20 05:54:28.466
End
2025-02-20 06:19:02.743
Duration
0:24:34.277
Note, WebLog generation is not included in the time.

CASA logs for stage 8