# uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 250322d10h04m30s136864usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021824001 -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
# ========= unknown GRB ===================
Could not find/read custom source region custom_021824_src.reg
Used archived BAT position of 169.68700 39.56000
Reference: GCN_FOM_Notice_Sat_22_Mar_25_03:35:34_UT
The position is (11:18:44.88, +39:33:36.0)
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(169.687,+39.560,3") # color=red dash=0
Source region spec. is: 169.687 +39.560 3"
Region file centered at (169.687,+39.560), which is (11:18:44.88, +39:33:36.0)
Could not find/read custom background region custom_021824_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 -35.28078 from uncorrected trigger time of 764134588 in BAT summary file
# ============ Reading file sw00021824001uwh_sk.img ================
Long-term sensitivity correction to zero point is -0.175 at 764302852
The processing date in extension 0 is: 2025-03-22T09:56:36
The trigger time is: 764134623.28078. The reference is BAT GRB summary file
Using zero point of 20.115 for filter WHITE
Use aperture correction of 1.108 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(169.687,+39.560,25")
fk5;-circle(169.687,+39.560,12.5")
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 wh764302852I 168228.9 0.98 126.6 158.3 104 8645 5804 0.000 0.112 99.00 20.7 0.0000 0.1123 99.00 20.7 127 0.000 22.206 99.00 0.004
2 wh764308338I 173714.9 0.98 455.3 586.8 108 32677 5820 0.000 0.062 99.00 21.4 0.0000 0.0542 99.00 21.5 582 0.000 10.993 99.00 0.004
Sum (T+168229 to 174177): 761.3 761.3 (est. in src region) SNR_unwtd_sum: 0.00 0.999999638888889 signif. UL: 21.51
0 582 764307339 172715.9 1461.5 -4487.1 0.0000 0.0542 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/-10.894 snr: 0.0 mag: 99.00 UL: 15.76
Rebinned Data for sw00021824001uwh_sk.img using a zero point of 20.115:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 569 172714.6 1462.9 -4485.7 0.0000 0.0542 99.00 99.00 172714.6 0.0000 0.0542 99.00 99.00 22.01
=========================================================
================ Start New Filter U ==================
=========================================================
# ============ Reading file sw00021824001uuu_sk.img ================
Long-term sensitivity correction to zero point is -0.241 at 764302146
The processing date in extension 0 is: 2025-03-22T09:56:35
The trigger time is: 764134623.28078. The reference is BAT GRB summary file
Using zero point of 18.099 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(169.687,+39.560,25")
fk5;-circle(169.687,+39.560,12.5")
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 uu764302145I 167522.6 1.00 688.7 193.8 128 9888 5892 0.000 0.024 99.00 20.4 0.0000 0.0238 99.00 20.4 689 0.000 30.018 99.00 0.003
2 uu764307560I 172937.5 0.99 758.6 243.8 108 13675 5800 0.000 0.023 99.00 20.4 0.0000 0.0167 99.00 20.8 1447 0.000 21.434 99.00 0.002
3 uu764313198I 178575.0 0.99 654.0 226.1 112 12282 5868 0.000 0.026 99.00 20.3 0.0000 0.0141 99.00 21.0 2101 0.000 18.307 99.00 0.002
Sum (T+167523 to 179239): 703.9 703.9 (est. in src region) SNR_unwtd_sum: 0.00 0.999999638888889 signif. UL: 20.96
0 2101 764307898 173274.5 5965.0 -5751.9 0.0000 0.0141 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/- 9.287 snr: 0.0 mag: 99.00 UL: 13.91
Rebinned Data for sw00021824001uuu_sk.img using a zero point of 18.099:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 2.09e+03 173271.7 5967.7 -5749.1 0.0000 0.0141 99.00 99.00 173271.7 0.0000 0.0141 99.00 99.00 21.46
The data range from T+167522.6 s (1.94 d) to T+179239.5 s (2.07 d)
Wrote uvot_fluxes_250322d10h04m30s136864usUT.qdp
Wrote uvot_fluxes_250322d10h04m30s136864usUT.gif
Wrote uvot_fluxes_250322d10h04m30s136864usUT.ps
Wrote uvot_fluxes_250322d10h04m30s136864usUT_vis.qdp
Wrote uvot_fluxes_250322d10h04m30s136864usUT_uv.qdp
Wrote uvot_fluxes_250322d10h04m30s136864usUT_vis.gif
Wrote uvot_fluxes_250322d10h04m30s136864usUT_vis.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
v (0) , white (0) , b (0) , u (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 0.00744 172573.8 6665.7 -5051.1 0.0000 0.0606 99.00 99.00 172573.8 0.0000 0.0606 99.00 99.00 22.07
The data range from T+167522.6 s (1.94 d) to T+179239.5 s (2.07 d)
Wrote uvot_fluxes_wtd_250322d10h04m30s136864usUT.qdp
Wrote uvot_fluxes_wtd_250322d10h04m30s136864usUT.gif
Wrote uvot_fluxes_wtd_250322d10h04m30s136864usUT.ps
Normal end of uvot_fluxes_wget.pl vrs. 2024-08-27 fem