7. Reweight visibilities

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

Statwt Summary Plot

VLASS2.1.sb38501480.eb38632936.59097.386918425924_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 5.163 5.069/6.006 5.436 ± 0.7623
ea02 1342 1342/1342 1342 ± 0.000003901 5.801 5.185/6.531 5.8 ± 0.8505
ea04 1342 1342/1342 1342 ± 0.00004362 5.268 4.872/5.886 5.332 ± 0.7261
ea05 1342 1342/1342 1342 ± 0.00004105 5.371 4.935/6.071 5.537 ± 0.7366
ea06 1342 1342/1342 1342 ± 0.00004211 4.855 4.656/5.402 4.966 ± 0.5913
ea07 1342 1342/1342 1342 ± 0 5.666 5.168/6.159 5.668 ± 0.8444
ea08 1342 1342/1342 1342 ± 0 5.685 5.305/6.668 5.919 ± 0.9598
ea09 1342 1342/1342 1342 ± 0.00003386 5.484 5.021/6.229 5.58 ± 0.7362
ea10 1342 1342/1342 1342 ± 0 5.532 5.037/6.553 5.635 ± 0.9417
ea11 1342 1342/1342 1342 ± 0 5.354 4.94/6.303 5.566 ± 0.9116
ea12 1342 1342/1342 1342 ± 0.00003684 5.537 5.092/6.385 5.623 ± 0.8814
ea13 1342 1342/1342 1342 ± 0.00004139 5.545 5.301/6.141 5.734 ± 0.6577
ea14 1342 1342/1342 1342 ± 0.00002056 5.381 5.062/6.272 5.558 ± 0.8705
ea15 1342 1342/1342 1342 ± 0.00004218 5.168 4.924/6.044 5.413 ± 0.8104
ea16 1342 1342/1342 1342 ± 0.00003653 5.783 5.331/6.666 5.857 ± 0.9499
ea17 1342 1342/1342 1342 ± 0 5.62 5.188/6.863 5.776 ± 0.9414
ea18 1342 1342/1342 1342 ± 0.000002388 4.749 4.58/5.563 4.93 ± 0.6482
ea19 1342 1342/1342 1342 ± 0.00004218 5.555 5.315/6.672 5.786 ± 0.9006
ea20 1342 1342/1342 1342 ± 0.00001882 5.587 5.49/6.747 5.909 ± 0.9751
ea21 1342 1342/1342 1342 ± 0.00003348 5.351 5.091/6.163 5.49 ± 0.7862
ea22 1342 1342/1342 1342 ± 0.00002339 5.234 4.864/6.356 5.576 ± 0.7714
ea23 1342 1342/1342 1342 ± 0.000001158 5.58 5.25/6.43 5.683 ± 0.9478
ea25 1342 1342/1342 1342 ± 0 5.34 5.025/6.147 5.453 ± 0.8239
ea26 1342 1342/1342 1342 ± 0.00003393 5.679 5.503/6.738 5.943 ± 0.8149
ea27 1342 1342/1342 1342 ± 0 5.344 4.942/6.345 5.473 ± 0.8423
ea28 1342 1342/1342 1342 ± 0 5.359 5.217/6.43 5.662 ± 0.8944
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 5.156 5.021/5.461 5.194 ± 0.2543
5 1342 1342/1342 1342 ± 0 5.321 5.074/5.434 5.271 ± 0.2837
6 1342 1342/1342 1342 ± 0 5.149 4.911/5.302 5.102 ± 0.2553
7 1342 1342/1342 1342 ± 0 5.169 4.994/5.346 5.152 ± 0.2354
8 1342 1342/1342 1342 ± 0 5.154 4.942/5.287 5.126 ± 0.2496
9 1342 1342/1342 1342 ± 0 5.353 5.18/5.609 5.361 ± 0.2894
10 1342 1342/1342 1342 ± 0 5.895 5.74/6.024 5.847 ± 0.2998
11 1342 1342/1342 1342 ± 0 6.15 6.022/6.295 6.121 ± 0.3108
12 1342 1342/1342 1342 ± 0 6.355 6.149/6.532 6.32 ± 0.3327
13 1342 1342/1342 1342 ± 0 6.736 6.582/6.959 6.707 ± 0.3536
14 1342 1342/1342 1342 ± 0 6.991 6.753/7.196 6.918 ± 0.38
15 1342 1342/1342 1342 ± 0 6.492 6.19/6.728 6.408 ± 0.4242
16 1342 1342/1342 1342 ± 0.00005802 4.176 4.047/4.446 4.242 ± 0.2605
17 1342 1342/1342 1342 ± 0.00005876 4.256 4.108/4.461 4.293 ± 0.2444
Pipeline QA summary for this task.
Score Reason
1.00 0.00% data in VLASS2.1.sb38501480.eb38632936.59097.386918425924_split_split.ms flagged by statwt flagging agents
output_dir
/mnt/condor/execute/dir_197361/working
datacolumn
residual_data
statwtmode
VLASS-SE
overwrite_modelcol
False
vis
/mnt/condor/execute/dir_197361/working/VLASS2.1.sb38501480.eb38632936.59097.386918425924_split_split.ms
Start time
2022-04-24 08:32:15.159
End
2022-04-24 09:50:55.723
Duration
1:18:40.564
Note, WebLog generation is not included in the time.

CASA logs for stage 7