# uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 251027d03h14m08s304250usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021862002 -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_021862_src.reg
Used archived BAT position of 345.83600 -0.21000
Reference: GCN_FOM_Notice_Wed_15_Oct_25_05:41:01_UT
The position is (23:03:20.64, -00:12:36.0)
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(345.836,-0.210,3") # color=red dash=0
Source region spec. is: 345.836 -0.210 3"
Region file centered at (345.836,-0.210), which is (23:03:20.64, -00:12:36.0)
Could not find/read custom background region custom_021862_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.
Failed to find trigger time in BAT summary file for trigger 00021862
# ============ Reading file sw00021862001uwh_sk.img ================
Long-term sensitivity correction to zero point is -0.175 at 782199812
The processing date in extension 0 is: 2025-10-15T12:32:13
The trigger time is: 0. The reference is trigger time unknown
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 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(345.836,-0.210,25")
fk5;-circle(345.836,-0.210,12.5")
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 wh782199812I 782199812.0 0.97 63.7 123.1 104 5540 5820 0.000 0.179 99.00 20.2 0.0000 0.1794 99.00 20.2 64 0.000 164918.781 99.00 0.000
2 wh782199879I 782199879.8 0.97 493.0 870.6 108 43098 5836 0.000 0.066 99.00 21.3 0.0000 0.0619 99.00 21.4 557 0.000 56852.677 99.00 0.000
3 wh782205163I 782205163.9 0.97 83.4 169.3 116 7217 5824 0.000 0.165 99.00 20.3 0.0000 0.0580 99.00 21.4 640 0.000 53253.207 99.00 0.000
4 wh782205251I 782205251.3 0.97 816.5 1476.2 108 71328 5824 0.000 0.051 99.00 21.6 0.0000 0.0384 99.00 21.9 1457 0.000 35281.794 99.00 0.000
5 wh782210179I 782210179.9 0.97 132.7 296.2 116 12195 5872 0.000 0.135 99.00 20.5 0.0000 0.0369 99.00 21.9 1589 0.000 33936.119 99.00 0.000
6 wh782210317I 782210317.5 0.97 1164.6 2359.6 116 105632 5844 0.000 0.045 99.00 21.7 0.0000 0.0287 99.00 22.2 2754 0.000 26311.738 99.00 0.000
Sum (T+782199812 to 782211501): 4700.7 4700.7 (est. in src region) SNR_unwtd_sum: 0.00 0.999999638888889 signif. UL: 22.20
0 2754 782206964 782206964.2 4536.5 -7152.2 0.0000 0.0287 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/-26063.540 snr: 0.0 mag: 99.00 UL: 7.31
Rebinned Data for sw00021862001uwh_sk.img using a zero point of 20.115:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 2.67e+03 782206961.4 4539.3 -7149.4 0.0000 0.0287 99.00 99.00 782206961.4 0.0000 0.0287 99.00 99.00 22.70
=========================================================
================ Start New Filter UVW2 ==================
=========================================================
# ============ Reading file sw00021862002uw2_sk.img ================
Use keyword TRIGTIME of 782070018.508 for trigger time.
Long-term sensitivity correction to zero point is -0.345 at 782422107
The processing date in extension 0 is: 2025-10-27T02:57:00
The trigger time is: 782070018.508. The reference is keyword in image file
Using zero point of 17.035 for filter UVW2
Use aperture correction of 1.108 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(345.836,-0.210,25")
fk5;-circle(345.836,-0.210,12.5")
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 w2782422106I 352088.2 1.00 475.5 33.6 116 1450 5844 0.000 0.013 99.00 20.0 0.0000 0.0126 99.00 20.0 476 0.000 89.186 99.00 0.002
2 w2782423313I 353294.6 1.00 441.8 23.7 116 494 5836 0.000 0.008 99.00 20.5 0.0000 0.0076 99.00 20.6 917 0.000 47.560 99.00 0.003
High bkg: 3 w2782438392I 332.2 3605 5828 1.862 0.031
3 w2782438392I 368373.7 1.00 332.2 88.0 112 3605 5828 0.000 0.028 99.00 19.1 0.0000 0.0093 99.00 20.3 1249 0.000 46.360 99.00 0.002
Sum (T+352088 to 368711): 107.9 107.9 (est. in src region) SNR_unwtd_sum: 0.00 0.999999638888889 signif. UL: 20.35
0 1249 782427079 357060.5 11650.7 -4972.3 0.0000 0.0093 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/-45.907 snr: 0.0 mag: 99.00 UL: 11.11
Rebinned Data for sw00021862002uw2_sk.img using a zero point of 17.035:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 1.25e+03 357051.9 11659.3 -4963.7 0.0000 0.0093 99.00 99.00 357051.9 0.0000 0.0093 99.00 99.00 20.84
The data range from T+352088.2 s (4.08 d) to T+782211500.8 s (9053.37 d)
Wrote uvot_fluxes_251027d03h14m08s304250usUT.qdp
Wrote uvot_fluxes_251027d03h14m08s304250usUT.gif
Wrote uvot_fluxes_251027d03h14m08s304250usUT.ps
Wrote uvot_fluxes_251027d03h14m08s304250usUT_vis.qdp
Wrote uvot_fluxes_251027d03h14m08s304250usUT_uv.qdp
Wrote uvot_fluxes_251027d03h14m08s304250usUT_vis.gif
Wrote uvot_fluxes_251027d03h14m08s304250usUT_vis.ps
Wrote uvot_fluxes_251027d03h14m08s304250usUT_uv.gif
Wrote uvot_fluxes_251027d03h14m08s304250usUT_uv.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
white (0) , v (0) , u (0) , b (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 1.23e-09 782206756.7 4744.1 -6944.6 0.0000 0.0336 99.00 99.00 782206756.7 0.0000 0.0336 99.00 99.00 22.70
The data range from T+352088.2 s (4.08 d) to T+782211500.8 s (9053.37 d)
Wrote uvot_fluxes_wtd_251027d03h14m08s304250usUT.qdp
Wrote uvot_fluxes_wtd_251027d03h14m08s304250usUT.gif
Wrote uvot_fluxes_wtd_251027d03h14m08s304250usUT.ps
Found 1 exposures with unusual background rate
Normal end of uvot_fluxes_wget.pl vrs. 2024-08-27 fem