# uvot_fluxes_wget.pl vrs. 2020-11-03a fem at 210901d22h49m07s089140usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021460002 -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
# ========= GRB210826A ===================
Could not find/read custom source region custom_021460_src.reg
Used archived XRT position of 45.55883 -71.90317 4.00
Reference: GRB_Auto_Processing-Fri,_27_Aug_2021_08:00:45_+0100
The position is (03:02:14.12, -71:54:11.4)
Using source region:
# Region file format: DS9 version 3.0
# uvot_fluxes.pl xrt
global font="helvetica 12 bold" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source=1
fk5;circle(45.55883,-71.90317,4") # color=red dash=0
Source region spec. is: 45.55883 -71.90317 4"
Region file centered at (45.55883,-71.90317), which is (03:02:14.12, -71:54:11.4)
Could not find/read custom background region custom_021460_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.
Found 3 bright star(s) within 50.0 arcsec of 45.55883 -71.90317:
ra: 45.5648 dec: -71.9024 mag: 5.25
ra: 45.5383 dec: -71.9027 mag: 8.02
ra: 45.5320 dec: -71.9016 mag: 9.13
Subtract UTCF of -27.60922 from uncorrected trigger time of 651654105.15 in BAT summary file
# ============ Reading file sw00021460002uvv_sk.img ================
Long-term sensitivity correction to zero point is -0.215 at 652149186
The processing date in extension 0 is: 2021-09-01T22:34:07
The trigger time is: 651654132.75922. The reference is BAT GRB summary file
Using zero point of 17.675 for filter V
Use aperture correction of 1.030 based on aperture of 4.00
Calculate distance from target to edge of image.
Ext Dist.(") RA_cent DEC_cent width PA
1 424.0 45.33914 -71.64651 0.286 119.9
2 430.5 45.33690 -71.64483 0.286 119.9
3 430.3 45.33591 -71.64505 0.286 119.9
4 352.6 45.32817 -71.67180 0.286 119.9
5 361.3 45.32963 -71.66870 0.286 119.9
6 358.9 45.32848 -71.66968 0.286 119.9
7 88.6 45.21595 -71.77899 0.286 119.9
8 83.5 45.20832 -71.78212 0.286 119.9
9 300.1 45.35530 -71.68373 0.286 119.9
10 308.9 45.34625 -71.68258 0.286 119.9
11 307.6 45.34664 -71.68292 0.286 119.9
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(45.55883,-71.90317,25")
fk5;-circle(45.55883,-71.90317,12.5")
fk5;-circle(45.5648029,-71.9023872,25")
fk5;-circle(45.5382556,-71.9026528,25")
fk5;-circle(45.5320139,-71.9015528,25")
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 vv652149186I 495053.7 1.00 134.6 0.0 0 0 0
% 2 vv652149326I 495193.4 1.00 1349.2 0.0 0 0 0
% 3 vv652150702I 496569.5 1.00 97.0 0.0 0 0 0
% 4 vv652161738I 507605.3 1.00 69.6 0.0 0 0 0
% 5 vv652161811I 507678.8 1.00 696.6 0.0 0 0 0
% 6 vv652162523I 508390.8 1.00 95.8 0.0 0 0 0
Low bkg: 7 vv652207420I 107.1 0 320 0.000 0.029
% 7 vv652207420I 553287.7 1.00 107.1 0.0 200 0 320
Low bkg: 8 vv652207531I 560.0 0 308 0.000 0.006
% 8 vv652207531I 553399.2 1.00 560.0 0.0 204 0 308
% 9 vv652218165I 564032.7 1.00 85.4 0.0 0 0 0
% 10 vv652218255I 564122.3 1.00 859.0 0.0 0 0 0
% 11 vv652219132I 564999.7 1.00 67.2 0.0 0 0 0
Wrote uvot_fluxes_210901d22h49m07s089140usUT.qdp
Failed to write uvot_fluxes_210901d22h49m07s089140usUT.gif
Failed to write uvot_fluxes_210901d22h49m07s089140usUT.ps
Wrote uvot_fluxes_210901d22h49m07s089140usUT_vis.qdp
Wrote uvot_fluxes_210901d22h49m07s089140usUT_uv.qdp
Found 2 exposures with unusual background rate
Normal end of uvot_fluxes_wget.pl vrs. 2020-11-03a fem