7. Reweight visibilities

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

Statwt Summary Plot

VLASS2.1.sb38546349.eb38559922.59066.15098736111_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: Wij≈WiWj.
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 5.839 5.312/6.155 5.646 ± 0.6872
ea02 1342 1342/1342 1342 ± 0 5.947 5.367/6.688 6.006 ± 0.8947
ea04 1342 1342/1342 1342 ± 0 5.109 4.854/5.884 5.2 ± 0.7648
ea05 1342 1342/1342 1342 ± 0.00003439 5.751 5.078/6.419 5.667 ± 0.8424
ea06 1342 1342/1342 1342 ± 0 3.217 2.969/3.455 3.145 ± 0.3198
ea07 1342 1342/1342 1342 ± 0 5.577 5.521/5.935 5.668 ± 0.2455
ea08 1342 1342/1342 1342 ± 0 6.861 5.801/7.088 6.422 ± 0.898
ea09 1342 1342/1342 1342 ± 0.00002124 5.35 4.969/6.008 5.344 ± 0.7321
ea10 1342 1342/1342 1342 ± 0 5.906 5.372/6.613 5.913 ± 0.8134
ea11 1342 1342/1342 1342 ± 0 6.294 5.701/6.627 6.059 ± 0.7111
ea12 1342 1342/1342 1342 ± 0 5.613 5.326/6.379 5.731 ± 0.8526
ea13 1342 1342/1342 1342 ± 0.00002986 5.818 5.538/6.234 5.828 ± 0.8431
ea14 0 N/A 0 ± N/A 0 N/A 0 ± N/A
ea15 1342 1342/1342 1342 ± 0.000009292 5.367 5.136/6.197 5.521 ± 0.9303
ea16 1342 1342/1342 1342 ± 0.00002852 4.73 4.156/5.426 4.789 ± 0.7076
ea18 1342 1342/1342 1342 ± 0 5.14 4.882/5.603 5.169 ± 0.543
ea19 1342 1342/1342 1342 ± 0.00004508 6.586 6.023/6.962 6.147 ± 1.066
ea20 1342 1342/1342 1342 ± 0 6.285 5.836/6.859 6.238 ± 0.8483
ea21 1342 1342/1342 1342 ± 0.00003085 5.634 5.445/6.38 5.769 ± 0.864
ea22 1342 1342/1342 1342 ± 0.000006352 5.485 5.187/6.494 5.731 ± 0.8689
ea23 1342 1342/1342 1342 ± 0.00001406 5.836 5.516/6.592 5.997 ± 0.9174
ea25 1342 1342/1342 1342 ± 0 5.406 5.19/5.498 5.165 ± 0.5961
ea26 1342 1342/1342 1342 ± 0.00001881 5.778 5.628/6.742 6.004 ± 0.9588
ea27 1342 1342/1342 1342 ± 0 5.785 5.559/6.553 5.862 ± 0.7639
ea28 1342 1342/1342 1342 ± 0 6.14 5.577/6.718 6.088 ± 0.8578
Summary of before/after-statwt antenna-based weights (Wi) for each spectral window. The antenna-based weights are derived from the visibility WEIGHT column: Wij≈WiWj.
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 5.446 5.225/5.769 5.332 ± 0.6998
5 1342 1342/1342 1342 ± 0 5.447 5.037/5.626 5.292 ± 0.6742
6 1342 1342/1342 1342 ± 0 5.408 5.139/5.569 5.23 ± 0.6145
7 1342 1342/1342 1342 ± 0 5.373 5.112/5.534 5.217 ± 0.5879
8 1342 1342/1342 1342 ± 0 5.308 5.015/5.555 5.188 ± 0.5955
9 1342 1342/1342 1342 ± 0 5.632 5.347/5.882 5.456 ± 0.6319
10 1342 1342/1342 1342 ± 0 6.027 5.35/6.164 5.775 ± 0.743
11 1342 1342/1342 1342 ± 0 6.278 5.947/6.554 6.113 ± 0.7458
12 1342 1342/1342 1342 ± 0 6.49 6.151/6.689 6.284 ± 0.7261
13 1342 1342/1342 1342 ± 0 6.74 6.265/6.937 6.502 ± 0.7881
14 1342 1342/1342 1342 ± 0 6.549 6.138/6.944 6.402 ± 0.8523
15 1342 1342/1342 1342 ± 0 6.743 6.367/6.989 6.521 ± 0.8513
16 1342 1342/1342 1342 ± 0.00005387 3.706 3.555/3.872 3.706 ± 0.2552
17 1342 1342/1342 1342 ± 0.00005087 3.815 3.568/4.062 3.815 ± 0.4071
Pipeline QA summary for this task.
Score Reason
1.00 0.00% data in VLASS2.1.sb38546349.eb38559922.59066.15098736111_split_split.ms flagged by statwt flagging agents
datacolumn
residual_data
overwrite_modelcol
False
vis
/mnt/condor/execute/dir_343/working/VLASS2.1.sb38546349.eb38559922.59066.15098736111_split_split.ms
output_dir
/mnt/condor/execute/dir_343/working
statwtmode
VLASS-SE
Start time
2022-03-03 06:06:12.285
End
2022-03-03 07:03:22.872
Duration
0:57:10.587
Note, WebLog generation is not included in the time.

CASA logs for stage 7