# uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 250603d12h52m00s522721usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021843002 -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
# ========= GRB250527C ===================
Could not find/read custom source region custom_021843_src.reg
Used archived BAT position of 319.63300 52.73700
Reference: GCN_Circ-40563
The position is (21:18:31.92, +52:44:13.2)
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(319.633,52.737,3") # color=red dash=0
Source region spec. is: 319.633 52.737 3"
Region file centered at (319.633,52.737), which is (21:18:31.92, +52:44:13.2)
Could not find/read custom background region custom_021843_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 -35.69828 from uncorrected trigger time of 769960712.41 in BAT summary file
# ============ Reading file sw00021843001uwh_sk.img ================
Long-term sensitivity correction to zero point is -0.175 at 770143149
The processing date in extension 0 is: 2025-05-28T23:56:29
The trigger time is: 769960748.10828. 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 7:
# 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(319.633,52.737,25")
fk5;-circle(319.633,52.737,12.5")
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 wh770143149I 182400.9 0.97 120.8 209.1 108 10894 5800 0.000 0.136 99.00 21.3 0.0000 0.1357 99.00 21.3 121 0.000 29.097 99.00 0.003
2 wh770143274I 182526.6 0.95 1082.0 2845.9 112 151063 5828 0.000 0.058 99.00 22.2 0.0000 0.0542 99.00 22.3 1203 0.000 11.536 99.00 0.002
3 wh770144506I 183758.8 0.91 7.2 39.0 112 1905 5856 0.000 1.022 99.00 19.1 0.0000 0.0542 99.00 22.3 1210 0.000 11.520 99.00 0.002
4 wh770147797I 187049.7 0.97 202.5 326.9 112 17235 5824 0.000 0.103 99.00 21.6 0.0000 0.0487 99.00 22.4 1413 0.000 10.277 99.00 0.002
5 wh770148006I 187258.5 0.97 752.9 1213.3 104 62333 5804 0.000 0.051 99.00 22.3 0.0000 0.0363 99.00 22.7 2165 0.000 7.584 99.00 0.002
6 wh770153392I 192644.6 0.97 203.5 382.7 120 17764 5876 0.000 0.108 99.00 21.5 0.0000 0.0345 99.00 22.8 2369 0.000 7.243 99.00 0.002
7 wh770153602I 192854.4 0.97 1495.3 2792.7 116 142836 5844 0.000 0.041 99.00 22.6 0.0000 0.0264 99.00 23.1 3864 0.000 5.727 99.00 0.002
8 wh770159542I 198794.4 0.97 158.2 260.4 108 13519 5816 0.000 0.115 99.00 21.5 0.0000 0.0258 99.00 23.1 4023 0.000 5.601 99.00 0.002
9 wh770159706I 198958.0 0.97 513.4 834.8 108 43856 5820 0.000 0.064 99.00 22.1 0.0000 0.0240 99.00 23.2 4536 0.000 5.245 99.00 0.002
Sum (T+182401 to 199480): 8853.6 8853.6 (est. in src region) SNR_unwtd_sum: 0.00 0.9883 signif. UL: 23.16
0 4536 770151050 190301.8 9177.8 -7900.9 0.0000 0.0240 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/- 5.196 snr: 0.0 mag: 99.00 UL: 17.32
# ============ Reading file sw00021843002uwh_sk.img ================
Long-term sensitivity correction to zero point is -0.175 at 770602704
The processing date in extension 0 is: 2025-06-03T12:42:59
The trigger time is: 769960748.10828. 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(319.633,52.737,25")
fk5;-circle(319.633,52.737,12.5")
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 wh770602704I 641956.2 0.97 135.6 229.5 112 11568 5848 0.000 0.126 99.00 21.4 0.0000 0.1263 99.00 21.4 136 0.000 95.292 99.00 0.001
2 wh770602844I 642096.9 0.97 1362.9 2451.7 108 138366 5836 0.000 0.043 99.00 22.5 0.0000 0.0406 99.00 22.6 1499 0.000 30.662 99.00 0.001
3 wh770604235I 643487.1 0.94 119.9 360.3 112 20982 5852 0.000 0.198 99.00 20.9 0.0000 0.0403 99.00 22.6 1618 0.000 30.041 99.00 0.001
4 wh770608247I 647499.5 0.97 135.6 252.5 112 11572 5828 0.000 0.127 99.00 21.4 0.0000 0.0385 99.00 22.6 1754 0.000 28.678 99.00 0.001
5 wh770608388I 647640.1 0.97 1362.9 2445.2 112 133587 5832 0.000 0.043 99.00 22.5 0.0000 0.0287 99.00 23.0 3117 0.000 21.560 99.00 0.001
6 wh770609778I 649030.4 0.94 153.2 457.7 104 27940 5796 0.000 0.173 99.00 21.0 0.0000 0.0285 99.00 23.0 3270 0.000 21.279 99.00 0.001
7 wh770614210I 653462.1 0.97 115.9 199.9 112 9866 5868 0.000 0.136 99.00 21.3 0.0000 0.0279 99.00 23.0 3386 0.000 20.852 99.00 0.001
8 wh770614331I 653583.0 0.97 1166.1 2396.6 116 121635 5828 0.000 0.049 99.00 22.4 0.0000 0.0242 99.00 23.1 4552 0.000 18.232 99.00 0.001
9 wh770615521I 654773.2 0.93 58.6 213.2 112 11669 5824 0.000 0.306 99.00 20.4 0.0000 0.0242 99.00 23.1 4611 0.000 18.178 99.00 0.001
Sum (T+641956 to 654833): 9306.6 9306.6 (est. in src region) SNR_unwtd_sum: 0.00 0.9883 signif. UL: 23.15
0 4611 770608826 648077.9 6754.9 -6121.7 0.0000 0.0242 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/- 4.992 snr: 0.0 mag: 99.00 UL: 17.36
Rebinned Data for sw00021843002uwh_sk.img using a zero point of 20.115:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 4.39e+03 190331.8 9147.9 -7930.9 0.0000 0.0240 99.00 99.00 190331.8 0.0000 0.0240 99.00 99.00 22.90
1 4.45e+03 648073.3 6759.5 -6117.1 0.0000 0.0242 99.00 99.00 420971.3 0.0000 0.0170 99.00 99.00 23.27
The data range from T+182400.9 s (2.11 d) to T+654832.8 s (7.58 d)
Wrote uvot_fluxes_250603d12h52m00s522721usUT.qdp
Wrote uvot_fluxes_250603d12h52m00s522721usUT.gif
Wrote uvot_fluxes_250603d12h52m00s522721usUT.ps
Wrote uvot_fluxes_250603d12h52m00s522721usUT_vis.qdp
Wrote uvot_fluxes_250603d12h52m00s522721usUT_uv.qdp
Wrote uvot_fluxes_250603d12h52m00s522721usUT_vis.gif
Wrote uvot_fluxes_250603d12h52m00s522721usUT_vis.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
b (0) , u (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 0.0309 190626.6 8853.1 -8225.7 0.0000 0.0275 99.00 99.00 190626.6 0.0000 0.0275 99.00 99.00 22.92
1 0.00258 647836.8 6996.0 -5880.6 0.0000 0.0281 99.00 99.00 225766.5 0.0000 0.0223 99.00 99.00 23.15
The data range from T+182400.9 s (2.11 d) to T+654832.8 s (7.58 d)
Wrote uvot_fluxes_wtd_250603d12h52m00s522721usUT.qdp
Wrote uvot_fluxes_wtd_250603d12h52m00s522721usUT.gif
Wrote uvot_fluxes_wtd_250603d12h52m00s522721usUT.ps
Normal end of uvot_fluxes_wget.pl vrs. 2024-08-27 fem