# uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 260118d07h23m28s638878usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021897002 -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
# ========= GRB260111A ===================
Could not find/read custom source region custom_021897_src.reg
Used archived BAT position of 229.57340 51.97470
Reference: GCN_Circ-43377
The position is (15:18:17.62, +51:58:28.9)
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(229.57340,51.97470,3") # color=red dash=0
Source region spec. is: 229.57340 51.97470 3"
Region file centered at (229.57340,51.97470), which is (15:18:17.62, +51:58:28.9)
Could not find/read custom background region custom_021897_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 0.1,
3 sigma should become about 2.5 sigma and 2 sigma should become about 1.3 sigma.
Accordingly confidence limits in the tables have been adjusted from 0.9987 to 0.98830000.
No adjustment has been made for the confidence limits for the rebinned data or the plots.
Subtract UTCF of -37.02246 from uncorrected trigger time of 789841994.01 in BAT summary file
# ============ Reading file sw00021897001uuu_sk.img ================
Long-term sensitivity correction to zero point is -0.251 at 789936341
The processing date in extension 0 is: 2026-01-13T21:27:43
The trigger time is: 789842031.03246. The reference is BAT GRB summary file
Using zero point of 18.089 for filter U
Use aperture correction of 1.100 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(229.57340,51.97470,25")
fk5;-circle(229.57340,51.97470,12.5")
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 uu789936340I 94309.9 0.98 740.4 986.5 104 53243 5820 0.000 0.047 99.00 20.4 0.0000 0.0473 99.00 20.4 740 0.000 34.017 99.00 0.001
2 uu789940942I 98911.3 0.98 1698.1 2115.5 116 107595 5876 0.000 0.031 99.00 20.9 0.0000 0.0258 99.00 21.1 2439 0.000 19.236 99.00 0.001
3 uu789946435I 104404.2 0.98 339.4 386.0 112 22696 5832 0.000 0.070 99.00 20.0 0.0000 0.0242 99.00 21.1 2778 0.000 18.174 99.00 0.001
Sum (T+ 94310 to 104749): 3511.3 3511.3 (est. in src region) SNR_unwtd_sum: 0.00 0.9883 signif. UL: 21.12
0 2778 789941036 99004.6 5744.4 -4694.7 0.0000 0.0242 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/-18.002 snr: 0.0 mag: 99.00 UL: 13.95
# ============ Reading file sw00021897002uuu_sk.img ================
Use keyword TRIGTIME of 789842031.035 for trigger time.
Long-term sensitivity correction to zero point is -0.251 at 790396550
The processing date in extension 0 is: 2026-01-18T07:14:04
The trigger time is: 789842031.035. The reference is keyword in image file
Using zero point of 18.089 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(229.57340,51.97470,25")
fk5;-circle(229.57340,51.97470,12.5")
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 uu790396550I 554519.1 0.99 1263.6 1109.3 116 56449 5852 0.000 0.030 99.00 20.9 0.0000 0.0298 99.00 20.9 1264 0.000 125.796 99.00 0.000
Sum (T+554519 to 555803): 1119.0 1119.0 (est. in src region) SNR_unwtd_sum: 0.00 0.9883 signif. UL: 20.90
0 1264 790397192 555161.0 641.9 -641.9 0.0000 0.0298 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/-17.817 snr: 0.0 mag: 99.00 UL: 13.96
Rebinned Data for sw00021897002uuu_sk.img using a zero point of 18.089:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 2.72e+03 99006.2 5742.8 -4696.3 0.0000 0.0242 99.00 99.00 99006.2 0.0000 0.0242 99.00 99.00 20.86
1 1.25e+03 555161.0 641.9 -641.9 0.0000 0.0298 99.00 99.00 242327.4 0.0000 0.0191 99.00 99.00 21.12
The data range from T+94309.9 s (1.09 d) to T+555802.9 s (6.43 d)
Wrote uvot_fluxes_260118d07h23m28s638878usUT.qdp
Wrote uvot_fluxes_260118d07h23m28s638878usUT.gif
Wrote uvot_fluxes_260118d07h23m28s638878usUT.ps
Wrote uvot_fluxes_260118d07h23m28s638878usUT_vis.qdp
Wrote uvot_fluxes_260118d07h23m28s638878usUT_uv.qdp
Wrote uvot_fluxes_260118d07h23m28s638878usUT_vis.gif
Wrote uvot_fluxes_260118d07h23m28s638878usUT_vis.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
u (0) , b (0) , v (0) , white (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 0.000399 98837.3 5911.7 -4527.4 0.0000 0.1839 99.00 99.00 98837.3 0.0000 0.1839 99.00 99.00 20.86
1 8.32e-06 555161.0 641.9 -641.9 0.0000 0.2266 99.00 99.00 108165.3 0.0000 0.1663 99.00 99.00 20.97
The data range from T+94309.9 s (1.09 d) to T+555802.9 s (6.43 d)
Wrote uvot_fluxes_wtd_260118d07h23m28s638878usUT.qdp
Wrote uvot_fluxes_wtd_260118d07h23m28s638878usUT.gif
Wrote uvot_fluxes_wtd_260118d07h23m28s638878usUT.ps
Normal end of uvot_fluxes_wget.pl vrs. 2024-08-27 fem