# uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 190428d03h39m58s718312usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00900730992 -use_uvot -rebin -plot_mag -sens_corr -search_src_reg -wrk_dir=/local/home/khamseen/khamseen10/uvot_tdrss/uvot_lc -web -zp_2011 -gamma=1.0 -use_filter_wtd=white v b u
# Current directory: /local/home/khamseen/khamseen10/uvot_tdrss/uvot_lc
# ========= GRB190427A ===================
Could not find/read custom source region custom_900730_src.reg
Used archived BAT position of 280.21300 40.32200
Reference: GCN_Position_Notice_Sat_27_Apr_19_04:34:29_UT
The position is (18:40:51.12, +40:19:19.2)
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(280.213,+40.322,3") # color=red dash=0
Source region spec. is: 280.213 +40.322 3"
Region file centered at (280.213,+40.322), which is (18:40:51.12, +40:19:19.2)
Could not find/read custom background region custom_900730_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 3600.0,
3 sigma should become about 5.1 sigma and 2 sigma should become about 4.5 sigma.
Accordingly confidence limits in the tables have been adjusted from 0.9987 to 0.99999964.
No adjustment has been made for the confidence limits for the rebinned data or the plots.
Subtract UTCF of -22.79238 from uncorrected trigger time of 578032454.95 in BAT summary file
# ============ Reading file sw00900730992uuu_sk.img ================
Long-term sensitivity correction to zero point is -0.164 at 578036214
The processing date in extension 0 is: 2019-04-27T12:05:02
The trigger time is: 578032477.74238. The reference is BAT GRB summary file
Using zero point of 18.176 for filter U
Use aperture correction of 1.100 based on aperture of 3.00
Using background region based on sources found in extension 1:
# 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(280.213,+40.322,25")
fk5;-circle(280.213,+40.322,12.5")
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 uu578036214I 3736.6 1.00 196.6 42.0 108 2501 5828 0.000 0.039 99.00 19.9 0.0000 0.0386 99.00 19.9 197 0.000 1.037 99.00 0.157
Sum (T+ 3737 to 3936): 46.4 46.4 (est. in src region) SNR_unwtd_sum: 0.00 0.999999638888889 signif. UL: 19.94
0 197 578036314 3836.5 99.9 -99.9 0.0000 0.0386 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/- 1.028 snr: 0.0 mag: 99.00 UL: 16.38
Rebinned Data for sw00900730992uuu_sk.img using a zero point of 18.176:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 196 3836.5 99.9 -99.9 0.0000 0.0386 99.00 99.00 3836.5 0.0000 0.0386 99.00 99.00 20.44
The data range from T+3736.6 s (0.04 d) to T+3936.4 s (0.05 d)
Wrote uvot_fluxes_190428d03h39m58s718312usUT.qdp
Wrote uvot_fluxes_190428d03h39m58s718312usUT.gif
Wrote uvot_fluxes_190428d03h39m58s718312usUT.ps
Wrote uvot_fluxes_190428d03h39m58s718312usUT_vis.qdp
Wrote uvot_fluxes_190428d03h39m58s718312usUT_uv.qdp
Wrote uvot_fluxes_190428d03h39m58s718312usUT_vis.gif
Wrote uvot_fluxes_190428d03h39m58s718312usUT_vis.ps
Normal end of uvot_fluxes_wget.pl vrs. 2018-11-07 fem