# uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 260209d15h27m47s394472usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021909001 -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
# ========= GRB260208 ===================
Could not find/read custom source region custom_021909_src.reg
Used archived BAT position of 99.63800 -13.83800
Reference: GCN_FOM_Notice_Sun_08_Feb_26_18:57:58_UT
The position is (06:38:33.12, -13:50:16.8)
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(99.638,-13.838,3") # color=red dash=0
Source region spec. is: 99.638 -13.838 3"
Region file centered at (99.638,-13.838), which is (06:38:33.12, -13:50:16.8)
Could not find/read custom background region custom_021909_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 5155.2,
3 sigma should become about 5.2 sigma and 2 sigma should become about 4.6 sigma.
Accordingly confidence limits in the tables have been adjusted from 0.9987 to 0.99999975.
No adjustment has been made for the confidence limits for the rebinned data or the plots.
Subtract UTCF of -37.13116 from uncorrected trigger time of 792237164.9 in BAT summary file
# ============ Reading file sw00021909001uwh_sk.img ================
Long-term sensitivity correction to zero point is -0.175 at 792270748
The processing date in extension 0 is: 2026-02-09T15:15:04
The trigger time is: 792237202.03116. 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(99.638,-13.838,25")
fk5;-circle(99.638,-13.838,12.5")
fk5;-circle(99.631829,-13.842420,6")
fk5;-circle(99.631657,-13.836797,6")
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 wh792270747I 33545.7 0.97 492.9 732.6 108 38566 5388 0.000 0.065 99.00 21.3 0.0000 0.0649 99.00 21.3 493 0.000 2.578 99.00 0.016
2 wh792276349I 39147.6 0.97 521.4 763.3 116 40321 5380 0.000 0.065 99.00 21.3 0.0000 0.0460 99.00 21.7 1014 0.000 1.959 99.00 0.014
3 wh792282099I 44897.6 0.97 510.6 703.9 104 39731 5384 0.000 0.062 99.00 21.3 0.0000 0.0370 99.00 21.9 1525 0.000 1.686 99.00 0.013
Sum (T+ 33546 to 45416): 2409.9 2409.9 (est. in src region) SNR_unwtd_sum: 0.00 0.999999747829393 signif. UL: 21.91
0 1525 792276722 39520.5 5895.9 -5974.8 0.0000 0.0370 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/- 1.669 snr: 0.0 mag: 99.00 UL: 17.78
Rebinned Data for sw00021909001uwh_sk.img using a zero point of 20.115:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 1.48e+03 39522.1 5894.2 -5976.4 0.0000 0.0370 99.00 99.00 39522.1 0.0000 0.0370 99.00 99.00 22.43
=========================================================
================ Start New Filter V ==================
=========================================================
# ============ Reading file sw00021909001uvv_sk.img ================
Long-term sensitivity correction to zero point is -0.231 at 792271255
The processing date in extension 0 is: 2026-02-09T15:15:05
The trigger time is: 792237202.03116. The reference is BAT GRB summary file
Using zero point of 17.659 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(99.638,-13.838,25")
fk5;-circle(99.638,-13.838,12.5")
fk5;-circle(99.631779,-13.842433,6")
fk5;-circle(99.631626,-13.836797,6")
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 vv792271254I 34052.9 0.99 427.7 128.0 116 7095 5412 0.000 0.032 99.00 19.6 0.0000 0.0319 99.00 19.6 428 0.000 12.333 99.00 0.007
2 vv792276885I 39683.9 0.99 319.9 99.1 116 5366 5384 0.000 0.037 99.00 19.5 0.0000 0.0242 99.00 19.9 748 0.000 9.924 99.00 0.007
3 vv792282624I 45422.7 0.99 79.3 29.7 116 1417 5416 0.000 0.077 99.00 18.7 0.0000 0.0231 99.00 20.0 827 0.000 9.624 99.00 0.007
Sum (T+ 34053 to 45503): 298.0 298.0 (est. in src region) SNR_unwtd_sum: 0.00 0.999999747829393 signif. UL: 19.97
0 827 792274703 37500.6 8002.7 -3447.7 0.0000 0.0231 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/- 1.615 snr: 0.0 mag: 99.00 UL: 15.36
Rebinned Data for sw00021909001uvv_sk.img using a zero point of 17.659:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 822 37500.5 8002.8 -3447.6 0.0000 0.0231 99.00 99.00 37500.5 0.0000 0.0231 99.00 99.00 20.48
=========================================================
================ Start New Filter U ==================
=========================================================
# ============ Reading file sw00021909001uuu_sk.img ================
Long-term sensitivity correction to zero point is -0.252 at 792270241
The processing date in extension 0 is: 2026-02-09T15:15:03
The trigger time is: 792237202.03116. The reference is BAT GRB summary file
Using zero point of 18.088 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(99.638,-13.838,25")
fk5;-circle(99.638,-13.838,12.5")
fk5;-circle(99.631788,-13.842422,6")
fk5;-circle(99.631606,-13.836775,6")
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 uu792270240I 33038.8 0.99 492.9 154.4 124 7839 5432 0.000 0.030 99.00 20.1 0.0000 0.0303 99.00 20.1 493 0.000 7.680 99.00 0.011
2 uu792275813I 38611.3 0.99 521.4 164.5 104 7545 5400 0.000 0.026 99.00 20.3 0.0000 0.0198 99.00 20.6 1014 0.000 5.410 99.00 0.011
3 uu792281574I 44372.6 0.99 510.6 145.9 108 7644 5388 0.000 0.027 99.00 20.2 0.0000 0.0160 99.00 20.8 1525 0.000 4.661 99.00 0.011
Sum (T+ 33039 to 44891): 477.5 477.5 (est. in src region) SNR_unwtd_sum: 0.00 0.999999747829393 signif. UL: 20.80
0 1525 792276200 38997.5 5893.8 -5958.7 0.0000 0.0160 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/- 1.539 snr: 0.0 mag: 99.00 UL: 15.84
Rebinned Data for sw00021909001uuu_sk.img using a zero point of 18.088:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 1.52e+03 38998.2 5893.1 -5959.4 0.0000 0.0160 99.00 99.00 38998.2 0.0000 0.0160 99.00 99.00 21.31
The data range from T+33038.8 s (0.38 d) to T+45503.3 s (0.53 d)
Wrote uvot_fluxes_260209d15h27m47s394472usUT.qdp
Wrote uvot_fluxes_260209d15h27m47s394472usUT.gif
Wrote uvot_fluxes_260209d15h27m47s394472usUT.ps
Wrote uvot_fluxes_260209d15h27m47s394472usUT_vis.qdp
Wrote uvot_fluxes_260209d15h27m47s394472usUT_uv.qdp
Wrote uvot_fluxes_260209d15h27m47s394472usUT_vis.gif
Wrote uvot_fluxes_260209d15h27m47s394472usUT_vis.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
b (0) , white (0) , u (0) , v (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 0.306 38491.9 7011.3 -5453.1 0.0000 0.0429 99.00 99.00 38491.9 0.0000 0.0429 99.00 99.00 22.44
The data range from T+33038.8 s (0.38 d) to T+45503.3 s (0.53 d)
Wrote uvot_fluxes_wtd_260209d15h27m47s394472usUT.qdp
Wrote uvot_fluxes_wtd_260209d15h27m47s394472usUT.gif
Wrote uvot_fluxes_wtd_260209d15h27m47s394472usUT.ps
Normal end of uvot_fluxes_wget.pl vrs. 2024-08-27 fem