# uvot_fluxes_wget.pl vrs. 2012-06-15 fem at 130507d07h41m26s981417usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00020271001 -use_uvot -rebin -plot_mag -sens_corr -search_src_reg -wrk_dir=/local/home/khamseen/khamseen10/uvot_tdrss/uvot_lc -web -useprev -zp_2011 -search_src_reg -gamma=1.0 -use_filter_wtd=white v b u
# Current directory: /local/home/khamseen/khamseen10/uvot_tdrss/uvot_lc
# ========= GRB130505B ===================
Used archived BAT position of 139.50000 1.50000
Reference: GCN_Circ-14586
The position is (09:18:00.00, +01:30:00.0)
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(139.50,+1.50,3") # color=red dash=0
Region file centered at (139.50,+1.50), which is (09:18:00.00, +01:30:00.0)
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 129600.0,
3 sigma should become about 5.7 sigma and 2 sigma should become about 5.2 sigma.
Accordingly confidence limits in the tables have been adjusted from 0.9987 to 0.99999999.
No adjustment has been made for the confidence limits for the rebinned data or the plots.
Subtract UTCF of -10.51904 from trigger time of 389490840 in BAT summary file
# ============ Reading file sw00020271001uuu_sk.img ================
Long-term sensitivity correction is 0.085 at 389550285
The processing date in extension 0 is: 2013-05-07T07:16:34
The trigger time is: 389490850.51904. The reference is BAT GRB summary file
Using zero point of 18.425 for filter U
Use aperture correction of 1.100 based on aperture of 3.00
Calculate distance from target to edge of image.
Ext Dist.(") RA_cent DEC_cent width PA
1 36.4 139.48376 1.30594 0.286 286.9
2 7.3 139.49719 1.30419 0.286 286.9
3 29.4 139.49087 1.30144 0.286 286.9
4 38.8 139.48258 1.30620 0.286 286.9
5 34.8 139.48997 1.30020 0.286 286.9
6 10.1 139.49620 1.30377 0.286 286.9
7 45.8 139.48149 1.30454 0.286 286.9
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(139.50,+1.50,25")
fk5;-circle(139.50,+1.50,12.5")
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
Low bkg: 1 uu389550284I 345.4 0 2400 0.000 0.001
% 1 uu389550284I 59434.2 1.00 345.4 0.0 0 0 2400
Low bkg: 2 uu389555121I 366.7 26 1656 0.042 0.008
% 2 uu389555121I 64271.0 1.00 366.7 0.0 0 26 1656
Low bkg: 3 uu389562126I 224.1 0 228 0.000 0.020
% 3 uu389562126I 71276.2 1.00 224.1 0.0 0 0 228
Low bkg: 4 uu389567656I 240.0 0 2452 0.000 0.002
% 4 uu389567656I 76805.8 1.00 240.0 0.0 0 0 2452
% 5 uu389572630I 81779.8 1.00 324.3 0.0 0 0 0
Low bkg: 6 uu389573645I 241.7 10 1324 0.032 0.010
% 6 uu389573645I 82794.6 1.00 241.7 0.0 0 10 1324
Low bkg: 7 uu389577651I 41.3 0 1804 0.000 0.013
% 7 uu389577651I 86801.5 1.00 41.3 0.0 0 0 1804
Wrote uvot_fluxes_130507d07h41m26s981417usUT.qdp
Failed to write uvot_fluxes_130507d07h41m26s981417usUT.gif
Failed to write uvot_fluxes_130507d07h41m26s981417usUT.ps
Wrote uvot_fluxes_130507d07h41m26s981417usUT_vis.qdp
Wrote uvot_fluxes_130507d07h41m26s981417usUT_uv.qdp
Found 6 exposures with unusual background rate
Normal end of uvot_fluxes_wget.pl vrs. 2012-06-15 fem