7. Reweight visibilities

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

Statwt Summary Plot

VLASS2.1.sb38727949.eb38730629.59137.436030474535_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 5.207 5.081/5.858 5.135 ± 1.036
ea02 0 N/A 0 ± N/A 0 N/A 0 ± N/A
ea03 1342 1342/1342 1342 ± 0.00004161 4.952 4.644/5.918 5.08 ± 0.889
ea04 1342 1342/1342 1342 ± 0.00003733 5.241 5.04/6.014 5.205 ± 1.067
ea05 1342 1342/1342 1342 ± 0.00003979 5.443 5.097/6.173 5.421 ± 0.8692
ea06 1342 1342/1342 1342 ± 0.00003068 4.772 4.574/5.283 4.639 ± 0.8856
ea07 1342 1342/1342 1342 ± 0 5.574 5.228/6.148 5.425 ± 1.087
ea08 1342 1342/1342 1342 ± 0 5.758 5.41/6.612 5.578 ± 1.271
ea09 1342 1342/1342 1342 ± 0.0000403 5.241 5.057/6.203 5.286 ± 1.05
ea10 1342 1342/1342 1342 ± 0 5.442 5.173/6.505 5.441 ± 1.225
ea11 0 N/A 0 ± N/A 0 N/A 0 ± N/A
ea12 1342 1342/1342 1342 ± 0.00002199 5.331 5.096/6.429 5.39 ± 1.202
ea13 1342 1342/1342 1342 ± 0.00003723 5.71 5.419/6.346 5.612 ± 1.
ea14 1342 1342/1342 1342 ± 0.00003766 5.393 5.08/6.322 5.366 ± 1.033
ea15 1342 1342/1342 1342 ± 0.00004123 5.439 5.269/6.455 5.586 ± 1.21
ea16 1342 1342/1342 1342 ± 0.00003523 5.769 5.343/6.455 5.657 ± 1.131
ea17 1342 1342/1342 1342 ± 0 6.027 5.537/6.736 5.811 ± 1.31
ea18 1342 1342/1342 1342 ± 0.000003615 4.736 4.439/5.395 4.66 ± 0.8758
ea19 1342 1342/1342 1342 ± 0.00004196 5.463 5.22/6.305 5.495 ± 0.8516
ea20 1342 1342/1342 1342 ± 0.000007656 5.558 5.249/6.577 5.537 ± 1.229
ea21 1342 1342/1342 1342 ± 0.00003837 5.376 5.178/6.246 5.386 ± 0.9348
ea23 1342 1342/1342 1342 ± 0.000005824 5.468 4.798/5.546 4.995 ± 0.9804
ea24 1342 1342/1342 1342 ± 0.000008841 5.321 5.106/6.146 5.302 ± 1.09
ea25 1342 1342/1342 1342 ± 0 5.298 4.916/6.075 5.194 ± 1.108
ea26 1342 1342/1342 1342 ± 0.00003224 5.716 5.451/6.52 5.69 ± 1.136
ea27 1342 1342/1342 1342 ± 0 5.312 5.089/6.361 5.291 ± 1.128
ea28 1342 1342/1342 1342 ± 0 5.203 5.054/6.104 5.183 ± 1.104
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 5.206 5.007/5.458 5.213 ± 0.2785
5 1342 1342/1342 1342 ± 0 5.329 5.094/5.46 5.271 ± 0.3255
6 1342 1342/1342 1342 ± 0 5.146 4.991/5.249 5.099 ± 0.2743
7 1342 1342/1342 1342 ± 0 5.22 5.084/5.425 5.228 ± 0.2803
8 1342 1342/1342 1342 ± 0 5.25 5.108/5.414 5.264 ± 0.3078
9 1342 1342/1342 1342 ± 0 5.419 5.246/5.684 5.421 ± 0.3419
10 1342 1342/1342 1342 ± 0 5.937 5.708/6.188 5.879 ± 0.4053
11 1342 1342/1342 1342 ± 0 6.266 6.001/6.46 6.198 ± 0.3723
12 1342 1342/1342 1342 ± 0 6.432 6.245/6.616 6.395 ± 0.3948
13 1342 1342/1342 1342 ± 0 6.426 6.208/6.675 6.379 ± 0.4346
14 1342 1342/1342 1342 ± 0.00001076 5.597 5.251/6.088 5.7 ± 0.6483
15 1342 1342/1342 1342 ± 0 6.514 6.286/6.849 6.481 ± 0.5561
16 1342 1342/1342 1342 ± 0.00005849 2.952 2.737/3.256 3.016 ± 0.3739
17 1342 1342/1342 1342 ± 0.00005977 3.052 2.822/3.321 3.089 ± 0.3219
Pipeline QA summary for this task.
Score Reason
1.00 0.00% data in VLASS2.1.sb38727949.eb38730629.59137.436030474535_split_split.ms flagged by statwt flagging agents
output_dir
/mnt/condor/execute/dir_198284/working
datacolumn
residual_data
overwrite_modelcol
False
statwtmode
VLASS-SE
vis
/mnt/condor/execute/dir_198284/working/VLASS2.1.sb38727949.eb38730629.59137.436030474535_split_split.ms
Start time
2022-08-09 13:24:46.878
End
2022-08-09 14:56:55.194
Duration
1:32:08.316
Note, WebLog generation is not included in the time.

CASA logs for stage 7