# uvot_fluxes_wget.pl vrs. 2020-11-03a fem at 220607d21h41m58s621649usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021504001 -use_uvot -rebin -plot_mag -sens_corr -search_src_reg -wrk_dir=/data/uvot/swift_data/home/uvot_lc -web -useprev -zp_2011 -gamma=1.0 -use_filter_wtd=white v b u
# Current directory: /data/uvot/swift_data/home/uvot_lc
# ========= GRB220606B ===================
Could not find/read custom source region custom_021504_src.reg
Used archived BAT position of 28.47400 -54.74100
Reference: GCN_Circ-32167
The position is (01:53:53.76, -54:44:27.6)
Using source region:
# Region file format: DS9 version 3.0
# uvot_fluxes.pl bat
global font="helvetica 12 bold" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source=1
fk5;circle(28.474,-54.741,3") # color=red dash=0
Source region spec. is: 28.474 -54.741 3"
Region file centered at (28.474,-54.741), which is (01:53:53.76, -54:44:27.6)
Could not find/read custom background region custom_021504_bkg.reg
Made source region file with 5" aper with name uvot_flux_src5.reg
Coincidence losses are calculated using a 5" aperture.
Exposure times (t_exp) have NOT been corrected for coinc. loss, but rates and mags have been.
The no. of background pixels has been corrected by the ratio of coincidence loss corrections in the source and background regions.
The errors have been adjusted to account for the binomial distribution of counts at large rates.
A table entry starting with # is an exposure with no aspect solution.
A table entry starting with ! has no pixels in either source or background region.
A table entry starting with % is unreliable because it is not well inside the image.
Upper limits in tables give the 0.9987 confidence limit using Bayesian analysis for detection taking the observed counts into account.
Upper limits in plots give the 0.9772 confidence limit using Bayesian analysis.
Weighted rates in tables (wtd_rate) combine rates from different exposures weighted by the expected source rate divided by the background rate
The source is assumed to produce the same magnitude in all filters.
The source is assumed to decay as t**(-1.0), and the rate is normalized so that the white filter produces 1 cps at 1000 sec.
The Rebinned Data for All_files combine rates from different exposures weighted by the expected rate divided by the observed sigma squared.
A plot of these data is stored in uvot_fluxes_wtd_date.ps and .gif.
A zero point of 20.29 is adopted for weighting rates.
*** Since no accurate position is available, set rates to 0. and compute ULs based on expected background in source aperture.
Because there are many possible positions for a source, the confidence levels should be increased for upper limits.
Using the ratio of the BAT region and the aperture of 10000.0,
3 sigma should become about 5.3 sigma and 2 sigma should become about 4.7 sigma.
Accordingly confidence limits in the tables have been adjusted from 0.9987 to 0.99999987.
No adjustment has been made for the confidence limits for the rebinned data or the plots.
Subtract UTCF of -29.2321 from uncorrected trigger time of 676170208 in BAT summary file
# ============ Reading file sw00021504001uwh_sk.img ================
Long-term sensitivity correction to zero point is -0.175 at 676215335
The processing date in extension 0 is: 2022-06-07T21:30:37
The trigger time is: 676170237.2321. The reference is BAT GRB summary file
Using zero point of 20.115 for filter WHITE
Use aperture correction of 1.108 based on aperture of 3.00
Calculate distance from target to edge of image.
Ext Dist.(") RA_cent DEC_cent width PA
9 5052.3 27.84695 -56.28272 0.286 51.0
Using background region based on sources found in extension 11:
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(28.474,-54.741,25")
fk5;-circle(28.474,-54.741,12.5")
fk5;-circle(28.469750,-54.745550,6")
Ext Exposure t-trig coinc t_exp src pix bkg pix net_rate +/- mag UL sum_rate +/- mag UL sumexp wtd_rate +/- mag wt/t
1 wh676215334I 45097.3 0.95 92.1 275.0 116 12618 5412 0.000 0.210 99.00 20.0 0.0000 0.2104 99.00 20.0 92 0.000 11.161 99.00 0.006
2 wh676215429I 45192.1 0.93 641.2 2710.3 112 132953 5384 0.000 0.099 99.00 20.8 0.0000 0.0905 99.00 20.9 733 0.000 4.799 99.00 0.004
3 wh676216381I 46144.1 0.89 28.7 188.3 116 8640 5420 0.000 0.593 99.00 18.9 0.0000 0.0898 99.00 20.9 762 0.000 4.747 99.00 0.004
above line uses coinc_corr_src: 0.894 corr_bkg: 0.894
4 wh676221091I 50854.1 0.95 91.3 224.8 108 12005 5376 0.000 0.199 99.00 20.1 0.0000 0.0829 99.00 21.0 853 0.000 4.410 99.00 0.004
5 wh676221186I 50949.7 0.92 597.9 2939.1 116 137378 5420 0.000 0.111 99.00 20.7 0.0000 0.0667 99.00 21.2 1451 0.000 3.681 99.00 0.004
High bkg: 6 wh676222119I 9.0 3105 5396 63.770 1.144
6 wh676222119I 51881.9 0.88 9.0 71.8 112 3105 5396 0.000 1.131 99.00 18.2 0.0000 0.0666 99.00 21.2 1460 0.000 3.675 99.00 0.004
above line uses coinc_corr_src: 0.880 corr_bkg: 0.880
7 wh676226795I 56558.3 0.96 93.3 204.9 108 10799 5384 0.000 0.184 99.00 20.1 0.0000 0.0635 99.00 21.3 1554 0.000 3.520 99.00 0.004
8 wh676226893I 56656.0 0.93 719.5 2952.7 112 145732 5368 0.000 0.092 99.00 20.9 0.0000 0.0523 99.00 21.5 2273 0.000 3.061 99.00 0.004
10 wh676231997I 61760.4 0.97 136.6 252.1 116 11109 5420 0.000 0.130 99.00 20.5 0.0000 0.0498 99.00 21.6 2410 0.000 2.912 99.00 0.004
11 wh676232139I 61902.1 0.95 1205.2 3931.9 112 186375 5352 0.000 0.061 99.00 21.3 0.0000 0.0390 99.00 21.8 3615 0.000 2.446 99.00 0.004
12 wh676238719I 68482.2 0.94 53.9 161.0 112 8700 5396 0.000 0.296 99.00 19.6 0.0000 0.0386 99.00 21.8 3669 0.000 2.433 99.00 0.004
13 wh676238776I 68539.6 0.93 210.0 964.6 120 42381 5432 0.000 0.176 99.00 20.2 0.0000 0.0378 99.00 21.9 3879 0.000 2.398 99.00 0.004
Sum (T+ 45097 to 68769): 14979.0 14979.0 (est. in src region) SNR_unwtd_sum: 0.00 0.99999987 signif. UL: 21.87
0 3879 676226700 56462.8 12305.7 -11365.6 0.0000 0.0378 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/- 2.374 snr: 0.0 mag: 99.00 UL: 17.37
Rebinned Data for sw00021504001uwh_sk.img using a zero point of 20.115:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 3.63e+03 56515.8 12252.8 -11418.5 0.0000 0.0378 99.00 99.00 56515.8 0.0000 0.0378 99.00 99.00 22.40
The data range from T+45097.3 s (0.52 d) to T+68768.5 s (0.80 d)
Wrote uvot_fluxes_220607d21h41m58s621649usUT.qdp
Wrote uvot_fluxes_220607d21h41m58s621649usUT.gif
Wrote uvot_fluxes_220607d21h41m58s621649usUT.ps
Wrote uvot_fluxes_220607d21h41m58s621649usUT_vis.qdp
Wrote uvot_fluxes_220607d21h41m58s621649usUT_uv.qdp
Wrote uvot_fluxes_220607d21h41m58s621649usUT_vis.gif
Wrote uvot_fluxes_220607d21h41m58s621649usUT_vis.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
u (0) , white (0) , b (0) , v (0) ,
Rebinned Data for All_files using a zero point of 20.290:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 0.148 55461.2 13307.3 -10363.9 0.0000 0.0432 99.00 99.00 55461.2 0.0000 0.0432 99.00 99.00 22.43
The data range from T+45097.3 s (0.52 d) to T+68768.5 s (0.80 d)
Wrote uvot_fluxes_wtd_220607d21h41m58s621649usUT.qdp
Wrote uvot_fluxes_wtd_220607d21h41m58s621649usUT.gif
Wrote uvot_fluxes_wtd_220607d21h41m58s621649usUT.ps
Found 1 exposures with unusual background rate
Normal end of uvot_fluxes_wget.pl vrs. 2020-11-03a fem