# uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 241113d18h01m00s392588usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021731001 -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
# ========= GRB241113B ===================
Could not find/read custom source region custom_021731_src.reg
Used archived BAT position of 110.23000 46.80400
Reference: GCN_Circ-38196
The position is (07:20:55.20, +46:48:14.4)
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(110.230,+46.804,3") # color=red dash=0
Source region spec. is: 110.230 +46.804 3"
Region file centered at (110.230,+46.804), which is (07:20:55.20, +46:48:14.4)
Could not find/read custom background region custom_021731_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 5776.0,
3 sigma should become about 5.2 sigma and 2 sigma should become about 4.6 sigma.
Accordingly confidence limits in the tables have been adjusted from 0.9987 to 0.99999977.
No adjustment has been made for the confidence limits for the rebinned data or the plots.
Subtract UTCF of -34.45536 from uncorrected trigger time of 753189785 in BAT summary file
# ============ Reading file sw00021731001uwh_sk.img ================
Long-term sensitivity correction to zero point is -0.175 at 753200422
The processing date in extension 0 is: 2024-11-13T17:54:10
The trigger time is: 753189819.45536. 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
Using background region based on sources found in extension 2:
# 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(110.230,+46.804,25")
fk5;-circle(110.230,+46.804,12.5")
fk5;-circle(110.228766,46.811163,6")
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 wh753200422I 10602.7 0.97 86.4 156.4 116 8388 5692 0.000 0.175 99.00 20.2 0.0000 0.1751 99.00 20.2 86 0.000 2.191 99.00 0.039
2 wh753200512I 10693.2 0.94 620.7 2417.3 108 124293 5636 0.000 0.094 99.00 20.9 0.0000 0.0850 99.00 21.0 707 0.000 1.071 99.00 0.020
High bkg: 3 wh753201393I 10.9 4057 5676 65.301 1.025
3 wh753201393I 11574.4 0.88 10.9 98.1 112 4057 5676 0.000 1.044 99.00 18.3 0.0000 0.0851 99.00 21.0 718 0.000 1.068 99.00 0.020
above line uses coinc_corr_src: 0.875 corr_bkg: 0.875
4 wh753205403I 15583.5 0.97 143.5 249.5 116 12604 5700 0.000 0.129 99.00 20.6 0.0000 0.0739 99.00 21.2 862 0.000 0.974 99.00 0.021
5 wh753205551I 15732.1 0.97 414.8 657.3 112 36889 5692 0.000 0.075 99.00 21.1 0.0000 0.0553 99.00 21.5 1276 0.000 0.800 99.00 0.022
Sum (T+ 10603 to 16154): 3615.1 3615.1 (est. in src region) SNR_unwtd_sum: 0.00 0.999999774930748 signif. UL: 21.47
0 1276 753202994 13174.9 2978.7 -2572.3 0.0000 0.0553 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/- 0.792 snr: 0.0 mag: 99.00 UL: 18.58
Rebinned Data for sw00021731001uwh_sk.img using a zero point of 20.115:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 1.22e+03 13212.0 2941.6 -2609.3 0.0000 0.0553 99.00 99.00 13212.0 0.0000 0.0553 99.00 99.00 21.99
The data range from T+10602.7 s (0.12 d) to T+16153.6 s (0.19 d)
Wrote uvot_fluxes_241113d18h01m00s392588usUT.qdp
Wrote uvot_fluxes_241113d18h01m00s392588usUT.gif
Wrote uvot_fluxes_241113d18h01m00s392588usUT.ps
Wrote uvot_fluxes_241113d18h01m00s392588usUT_vis.qdp
Wrote uvot_fluxes_241113d18h01m00s392588usUT_uv.qdp
Wrote uvot_fluxes_241113d18h01m00s392588usUT_vis.gif
Wrote uvot_fluxes_241113d18h01m00s392588usUT_vis.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
white (0) , b (0) , v (0) , u (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 1.33 13148.9 3004.7 -2546.2 0.0000 0.0608 99.00 99.00 13148.9 0.0000 0.0608 99.00 99.00 22.06
The data range from T+10602.7 s (0.12 d) to T+16153.6 s (0.19 d)
Wrote uvot_fluxes_wtd_241113d18h01m00s392588usUT.qdp
Wrote uvot_fluxes_wtd_241113d18h01m00s392588usUT.gif
Wrote uvot_fluxes_wtd_241113d18h01m00s392588usUT.ps
Found 1 exposures with unusual background rate
Normal end of uvot_fluxes_wget.pl vrs. 2024-08-27 fem