# uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 250522d12h16m39s610573usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021830001 -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
# ========= GRB250521B ===================
Could not find/read custom source region custom_021830_src.reg
Used archived BAT position of 200.82200 1.76600
Reference: GCN_Circ-40513
The position is (13:23:17.28, +01:45:57.6)
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(200.822,1.766,3") # color=red dash=0
Source region spec. is: 200.822 1.766 3"
Region file centered at (200.822,1.766), which is (13:23:17.28, +01:45:57.6)
Could not find/read custom background region custom_021830_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 -35.63532 from uncorrected trigger time of 769407557.8 in BAT summary file
# ============ Reading file sw00021830001uwh_sk.img ================
Long-term sensitivity correction to zero point is -0.175 at 769564291
The processing date in extension 0 is: 2025-05-22T12:07:07
The trigger time is: 769407593.43532. 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 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(200.822,1.766,25")
fk5;-circle(200.822,1.766,12.5")
fk5;-circle(200.823258,1.761460,6")
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 wh769564291I 156697.8 0.97 260.6 400.1 108 20376 5408 0.000 0.089 99.00 21.7 0.0000 0.0890 99.00 21.7 261 0.000 16.405 99.00 0.003
2 wh769574443I 166850.0 0.97 76.2 113.4 108 6048 5400 0.000 0.166 99.00 21.1 0.0000 0.0785 99.00 21.9 337 0.000 14.652 99.00 0.003
Sum (T+156698 to 166927): 527.9 527.9 (est. in src region) SNR_unwtd_sum: 0.00 0.9883 signif. UL: 21.87
0 337 769566699 159105.6 7821.8 -2407.7 0.0000 0.0785 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/-14.508 snr: 0.0 mag: 99.00 UL: 16.21
Rebinned Data for sw00021830001uwh_sk.img using a zero point of 20.115:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 328 159104.8 7822.6 -2406.9 0.0000 0.0785 99.00 99.00 159104.8 0.0000 0.0785 99.00 99.00 21.61
=========================================================
================ Start New Filter V ==================
=========================================================
# ============ Reading file sw00021830001uvv_sk.img ================
Long-term sensitivity correction to zero point is -0.229 at 769564562
The processing date in extension 0 is: 2025-05-22T12:07:08
The trigger time is: 769407593.43532. The reference is BAT GRB summary file
Using zero point of 17.661 for filter V
Use aperture correction of 1.087 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(200.822,1.766,25")
fk5;-circle(200.822,1.766,12.5")
fk5;-circle(200.823250,1.761449,6")
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 vv769564562I 156968.8 0.99 175.8 71.8 116 3108 5424 0.000 0.051 99.00 19.9 0.0000 0.0513 99.00 19.9 176 0.000 90.682 99.00 0.001
Sum (T+156969 to 157147): 66.5 66.5 (est. in src region) SNR_unwtd_sum: 0.00 0.9883 signif. UL: 19.88
0 176 769564652 157058.1 89.3 -89.3 0.0000 0.0513 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/-14.067 snr: 0.0 mag: 99.00 UL: 13.79
Rebinned Data for sw00021830001uvv_sk.img using a zero point of 17.661:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 175 157058.1 89.3 -89.3 0.0000 0.0513 99.00 99.00 157058.1 0.0000 0.0513 99.00 99.00 19.62
=========================================================
================ Start New Filter U ==================
=========================================================
# ============ Reading file sw00021830001uuu_sk.img ================
Long-term sensitivity correction to zero point is -0.243 at 769564020
The processing date in extension 0 is: 2025-05-22T12:07:07
The trigger time is: 769407593.43532. The reference is BAT GRB summary file
Using zero point of 18.097 for filter U
Use aperture correction of 1.100 based on aperture of 3.00
Using background region based on sources found in extension 3:
# 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(200.822,1.766,25")
fk5;-circle(200.822,1.766,12.5")
fk5;-circle(200.823177,1.761438,6")
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 uu769564020I 156427.0 1.00 260.6 58.2 104 3259 5424 0.000 0.034 99.00 20.8 0.0000 0.0338 99.00 20.8 261 0.000 39.912 99.00 0.004
2 uu769568013I 160420.2 0.99 466.6 172.2 112 8728 5392 0.000 0.032 99.00 20.8 0.0000 0.0240 99.00 21.1 727 0.000 27.925 99.00 0.002
3 uu769573632I 166038.9 0.99 791.1 278.5 116 12861 5420 0.000 0.023 99.00 21.2 0.0000 0.0168 99.00 21.5 1518 0.000 20.251 99.00 0.002
4 uu769579339I 171746.2 0.99 657.5 180.5 112 10242 5428 0.000 0.025 99.00 21.1 0.0000 0.0139 99.00 21.7 2176 0.000 17.118 99.00 0.002
Sum (T+156427 to 172414): 730.4 730.4 (est. in src region) SNR_unwtd_sum: 0.00 0.9883 signif. UL: 21.74
0 2176 769573315 165721.2 6693.0 -9294.2 0.0000 0.0139 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: 14.50
Rebinned Data for sw00021830001uuu_sk.img using a zero point of 18.097:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 2.16e+03 165720.9 6693.4 -9293.9 0.0000 0.0139 99.00 99.00 165720.9 0.0000 0.0139 99.00 99.00 21.47
The data range from T+156427.0 s (1.81 d) to T+172414.3 s (2.00 d)
Wrote uvot_fluxes_250522d12h16m39s610573usUT.qdp
Wrote uvot_fluxes_250522d12h16m39s610573usUT.gif
Wrote uvot_fluxes_250522d12h16m39s610573usUT.ps
Wrote uvot_fluxes_250522d12h16m39s610573usUT_vis.qdp
Wrote uvot_fluxes_250522d12h16m39s610573usUT_uv.qdp
Wrote uvot_fluxes_250522d12h16m39s610573usUT_vis.gif
Wrote uvot_fluxes_250522d12h16m39s610573usUT_vis.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
u (0) , white (0) , v (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 0.00443 159500.7 12913.6 -3073.7 0.0000 0.0830 99.00 99.00 159500.7 0.0000 0.0830 99.00 99.00 21.72
The data range from T+156427.0 s (1.81 d) to T+172414.3 s (2.00 d)
Wrote uvot_fluxes_wtd_250522d12h16m39s610573usUT.qdp
Wrote uvot_fluxes_wtd_250522d12h16m39s610573usUT.gif
Wrote uvot_fluxes_wtd_250522d12h16m39s610573usUT.ps
Normal end of uvot_fluxes_wget.pl vrs. 2024-08-27 fem