# uvot_fluxes_wget.pl vrs. 2020-11-03a fem at 220420d15h30m42s994373usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021486992 -use_uvot -rebin -plot_mag -sens_corr -search_src_reg -wrk_dir=/data/uvot/swift_data/home/uvot_lc -web -zp_2011 -gamma=1.0 -use_filter_wtd=white v b u
# Current directory: /data/uvot/swift_data/home/uvot_lc
# ========= GRB220418B ===================
Could not find/read custom source region custom_021486_src.reg
Used archived BAT position of 224.32900 -17.51400
Reference: GCN_FOM_Notice_Sat_09_Apr_22_04:24:49_UT
The position is (14:57:18.96, -17:30:50.4)
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(224.329,-17.514,3") # color=red dash=0
Source region spec. is: 224.329 -17.514 3"
Region file centered at (224.329,-17.514), which is (14:57:18.96, -17:30:50.4)
Could not find/read custom background region custom_021486_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.
Failed to find trigger time in BAT summary file for trigger 00021486
Use bat_met of 671995009.99 for trigger time.
# ============ Reading file sw00021486992uuu_sk.img ================
Long-term sensitivity correction to zero point is -0.204 at 672109087
The processing date in extension 0 is: 2022-04-20T15:23:28
The trigger time is: 671995009.99. The reference is GCN_FOM_Notice_Sat_09_Apr_22_04:24:49_UT
Using zero point of 18.136 for filter U
Use aperture correction of 1.100 based on aperture of 3.00
Using background region based on sources found in extension 6:
# 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(224.329,-17.514,25")
fk5;-circle(224.329,-17.514,12.5")
fk5;-circle(224.336419,-17.511759,6")
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 uu672109087I 114077.4 0.99 220.3 90.9 116 3903 5704 0.000 0.045 99.00 19.7 0.0000 0.0452 99.00 19.7 220 0.000 37.511 99.00 0.003
2 uu672114780I 119770.9 0.99 347.3 130.5 108 6234 5692 0.000 0.035 99.00 20.0 0.0000 0.0277 99.00 20.2 568 0.000 23.661 99.00 0.003
3 uu672120539I 125529.4 0.99 473.8 177.0 116 8245 5748 0.000 0.030 99.00 20.1 0.0000 0.0205 99.00 20.6 1041 0.000 18.021 99.00 0.003
4 uu672126246I 131236.8 0.99 643.8 233.0 108 12000 5692 0.000 0.026 99.00 20.3 0.0000 0.0161 99.00 20.8 1685 0.000 14.627 99.00 0.003
5 uu672131977I 136967.9 0.99 1225.7 468.4 112 22856 5720 0.000 0.019 99.00 20.6 0.0000 0.0124 99.00 21.1 2911 0.000 11.656 99.00 0.003
6 uu672137713I 142703.8 0.99 1502.9 477.3 104 26842 5664 0.000 0.016 99.00 20.8 0.0000 0.0099 99.00 21.3 4414 0.000 9.648 99.00 0.003
7 uu672143458I 148449.0 0.99 394.4 139.4 112 6823 5696 0.000 0.033 99.00 20.0 0.0000 0.0095 99.00 21.4 4808 0.000 9.310 99.00 0.003
Sum (T+114077 to 148850): 1666.3 1666.3 (est. in src region) SNR_unwtd_sum: 0.00 0.99999987 signif. UL: 21.39
0 4808 672131026 136015.9 12833.7 -21938.6 0.0000 0.0095 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/- 9.221 snr: 0.0 mag: 99.00 UL: 13.92
Rebinned Data for sw00021486992uuu_sk.img using a zero point of 18.136:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 4.78e+03 136016.5 12833.2 -21939.1 0.0000 0.0095 99.00 99.00 136016.5 0.0000 0.0095 99.00 99.00 21.93
The data range from T+114077.4 s (1.32 d) to T+148849.7 s (1.72 d)
Wrote uvot_fluxes_220420d15h30m42s994373usUT.qdp
Wrote uvot_fluxes_220420d15h30m42s994373usUT.gif
Wrote uvot_fluxes_220420d15h30m42s994373usUT.ps
Wrote uvot_fluxes_220420d15h30m42s994373usUT_vis.qdp
Wrote uvot_fluxes_220420d15h30m42s994373usUT_uv.qdp
Wrote uvot_fluxes_220420d15h30m42s994373usUT_vis.gif
Wrote uvot_fluxes_220420d15h30m42s994373usUT_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 0.00159 134832.0 14017.7 -20754.6 0.0000 0.0690 99.00 99.00 134832.0 0.0000 0.0690 99.00 99.00 21.92
The data range from T+114077.4 s (1.32 d) to T+148849.7 s (1.72 d)
Wrote uvot_fluxes_wtd_220420d15h30m42s994373usUT.qdp
Wrote uvot_fluxes_wtd_220420d15h30m42s994373usUT.gif
Wrote uvot_fluxes_wtd_220420d15h30m42s994373usUT.ps
Normal end of uvot_fluxes_wget.pl vrs. 2020-11-03a fem