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

Overall results:

Mean: 310.396
Variance: 17787

Statwt Summary

In the tables and plots below, the weight properties are shown in the "antenna-based" scale: we first derive the optimized solutions to Wt_bl_ij=Wt_i*Wt_j for individual integrations, where Wt_bl_ij is the "baseline" weight (i.e., the MS WEIGHT column) and Wt_i/Wt_j is the "antenna-based" weight; then we compute and present the statistical properties of the latter values after slicing them along different data axes (antenna, spw, scan). Note that there is a square scale difference between the baseline weights and the antenna-based weights.

The color background present in some table cells highlights spectral windows with a statistical property signficantly deviated from its median over all of the relevant group (spw, scan, antenna):

For values above the median, shades of red are used:

3σ≤dev<4σ

;

4σ≤dev<5σ

;

5σ≤dev<6σ

;

6σ≤dev,

where σ is defined as 1.4826*MAD.

For values below the median, shades of blue are used:

3σ≤dev<4σ

;

4σ≤dev<5σ

;

5σ≤dev<6σ

;

6σ≤dev,

where σ is defined as 1.4826*MAD.



S-band |  Top of page | (Click to Jump)

S-band

Statwt Summary Plot

TDRW0001.sb35624494.eb35628826.58395.23719237269.ms

Plot of antenna-based weight vs. antenna or spectral window (after re-weight, S-band)

Summary of after-statwt antenna-based weights (Wi) for each antenna, Band S. The antenna-based weights are derived from the visibility WEIGHT column: WijWiWj.
Antenna Selection Weight Properties
Median 1st Quartile 3rd Quartile Mean S.Dev. Minimum Maximum
ea01 19.77 17.85 21.7 19.75 2.915 5.187 29.09
ea02 18.76 17.25 20.18 18.63 2.487 3.594 26.86
ea03 17.15 15.65 19.07 17.24 2.63 5.526 26.12
ea04 17.67 16.19 19.41 17.67 2.547 2.289 31.02
ea05 13.45 12.14 14.97 13.5 1.994 4.236 20.3
ea06 16.47 15.15 17.6 16.26 1.99 2.294 29.54
ea07 18.5 16.74 19.87 18.19 2.517 2.737 35.84
ea08 19.03 17.11 20.62 18.71 2.842 2.11 39.55
ea09 18.84 17.46 20.62 18.88 2.655 1.503 33.95
ea10 18.95 16.4 21.01 18.72 3.012 5.533 29.2
ea11 20.62 19.19 22.03 20.42 2.662 2.883 29.51
ea12 17.93 16.13 20.19 18.06 3.289 5.176 46.73
ea13 18.11 16.39 19.6 17.88 2.497 2.156 40.11
ea14 18.55 16.54 20.95 18.83 3.18 7.042 31.11
ea15 17.26 15.63 18.92 17.16 2.451 1.78 31.02
ea16 17.14 15.71 18.52 16.99 2.344 1.483 37.01
ea17 21.04 19.11 23.74 21.21 3.356 3.244 33.74
ea18 22.13 19.72 24.38 22.12 3.537 7.746 35.05
ea19 18.67 17.03 20.85 18.84 2.889 3.733 28.76
ea20 18.95 17.21 20.7 18.83 2.804 2.997 36.68
ea21 17.63 15.79 19.29 17.49 2.47 7.515 34.77
ea22 18.93 16.84 21.14 18.89 3 1.964 40.21
ea23 18.15 16.26 20.13 18.23 2.93 3.666 28.71
ea24 21.73 19.19 24.44 21.77 3.598 7.521 33.55
ea25 20.12 18.42 22.08 20.12 2.878 2.62 33.59
ea26 20.22 18.47 22.21 20.2 2.91 3.167 34.9
ea28 18.03 16.2 20.18 18.07 2.843 2.053 38.84
Summary of after-statwt antenna-based weights (Wi) for each spectral window. The antenna-based weights are derived from the visibility WEIGHT column: WijWiWj.
Spw Selection Weight Properties
Median 1st Quartile 3rd Quartile Mean S.Dev. Minimum Maximum
2 16.66 15.45 18.06 16.58 2.385 1.909 28.1
3 16.39 15.18 17.74 16.26 2.354 1.555 24.55
4 16.8 15.64 18.09 16.7 2.397 1.483 28.83
5 18.19 16.98 19.52 18.06 2.504 1.785 27.04
6 19.36 18.06 20.85 19.25 2.694 1.931 28.57
7 20.24 18.92 21.69 20.1 2.781 1.725 30.02
8 20.84 19.34 22.47 20.74 2.973 1.799 46.73
9 21.46 19.55 23.35 21.37 3.365 1.78 40.21
Summary of after-statwt antenna-based weights (Wi) for each scan. The antenna-based weights are derived from the visibility WEIGHT column: WijWiWj.
Scan Selection Weight Properties
Median 1st Quartile 3rd Quartile Mean S.Dev. Minimum Maximum
5 9.802 8.301 11.48 9.886 2.572 1.483 21.13
6 17.43 15.34 19.37 17.3 3.051 6.954 31.24
7 18.41 16.71 20.29 18.53 2.692 9.67 29.21
8 18.22 16.23 20.15 18.3 2.92 9.241 30.8
9 18.65 16.84 20.63 18.73 2.794 10.42 29.02
10 18.5 16.59 20.46 18.69 2.8 9.936 31.41
11 18.83 17.14 20.74 18.98 2.722 10.7 30.27
12 18.6 16.66 20.57 18.74 2.91 9.85 32.85
13 18.87 17.19 20.89 19.06 2.78 10.77 30.36
14 18.77 16.83 20.77 18.91 2.95 6.657 35.05
15 19.24 17.51 21.18 19.39 2.769 11.53 29.88
16 18.93 16.98 20.99 19.08 3.005 6.237 32.65
17 19.15 17.3 21.15 19.27 2.867 9.152 46.73
18 18.88 16.94 20.93 19.06 2.974 10.18 33.04
19 19.11 17.27 21.23 19.27 2.845 11.77 30.42
20 18.8 16.87 20.91 19 2.999 8.311 33.36
21 19.09 17.21 21.2 19.26 2.832 8.644 30.59
22 18.92 16.98 21.02 19.12 2.993 9.022 37.01
23 18.94 17.17 20.96 19.13 2.773 12.2 36.73
24 19.03 17.09 21.05 19.19 2.931 10.56 40.21
25 19.09 17.2 21.12 19.2 2.854 9.888 34.52
statwtmode
VLA
vis
TDRW0001.sb35624494.eb35628826.58395.23719237269.ms
datacolumn
corrected
overwrite_modelcol
False
output_dir
 
Start time
2023-09-14 16:20:28.093
End
2023-09-14 16:41:20.241
Duration
0:20:52.148
Context size
205.5 MiB
Note, WebLog generation is not included in the time.

CASA logs for stage 16