# uvot_fluxes_wget.pl vrs. 2020-11-03a fem at 210829d06h44m21s026352usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021461002 -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_021461_src.reg
Used archived BAT position of 174.91800 55.78600
Reference: GCN_FOM_Notice_Fri_27_Aug_21_22:01:42_UT
The position is (11:39:40.32, +55:47:09.6)
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(174.918,+55.786,3") # color=red dash=0
Source region spec. is: 174.918 +55.786 3"
Region file centered at (174.918,+55.786), which is (11:39:40.32, +55:47:09.6)
Could not find/read custom background region custom_021461_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 00021461
# ============ Reading file sw00021461002uwh_sk.img ================
Long-term sensitivity correction to zero point is -0.177 at 651887928
The processing date in extension 0 is: 2021-08-29T06:31:10
The trigger time is: 0. The reference is trigger time unknown
Using zero point of 20.113 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(174.918,+55.786,25")
fk5;-circle(174.918,+55.786,12.5")
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 wh651887927I 651887927.9 0.93 162.2 656.9 112 35188 5836 0.000 0.193 99.00 20.1 0.0000 0.1930 99.00 20.1 162 0.000 148113.426 99.00 0.000
2 wh651888096I 651888096.1 0.94 956.0 3184.0 112 165086 5856 0.000 0.070 99.00 21.2 0.0000 0.0658 99.00 21.3 1118 0.000 50296.263 99.00 0.000
3 wh651894553I 651894553.9 0.94 89.3 281.2 112 14867 5828 0.000 0.224 99.00 20.0 0.0000 0.0631 99.00 21.3 1208 0.000 48270.672 99.00 0.000
4 wh651894647I 651894647.6 0.96 892.5 2070.9 112 109137 5824 0.000 0.060 99.00 21.4 0.0000 0.0442 99.00 21.7 2100 0.000 33237.533 99.00 0.000
6 wh651899447I 651899447.7 0.92 158.2 726.9 112 37293 5828 0.000 0.205 99.00 20.1 0.0000 0.0435 99.00 21.8 2258 0.000 32516.407 99.00 0.000
7 wh651899611I 651899611.8 0.94 521.5 1737.8 104 98323 5828 0.000 0.096 99.00 20.9 0.0000 0.0396 99.00 21.9 2780 0.000 29721.535 99.00 0.000
8 wh651904769I 651904769.9 0.90 158.4 926.0 120 46931 5872 0.000 0.242 99.00 19.9 0.0000 0.0396 99.00 21.9 2938 0.000 29349.025 99.00 0.000
9 wh651904968I 651904968.9 0.93 690.7 2894.6 112 149231 5884 0.000 0.093 99.00 20.9 0.0000 0.0366 99.00 21.9 3629 0.000 27133.296 99.00 0.000
Sum (T+651887928 to 651906188): 12488.1 12488.1 (est. in src region) SNR_unwtd_sum: 0.00 0.999999638888889 signif. UL: 21.94
0 3629 651896423 651896423.5 9764.2 -8495.6 0.0000 0.0366 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/-26879.026 snr: 0.0 mag: 99.00 UL: 7.27
Rebinned Data for sw00021461002uwh_sk.img using a zero point of 20.113:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 3.42e+03 651896378.8 9808.9 -8450.9 0.0000 0.0366 99.00 99.00 651896378.8 0.0000 0.0366 99.00 99.00 22.44
The data range from T+651887927.9 s (7545.00 d) to T+651906187.7 s (7545.21 d)
Wrote uvot_fluxes_210829d06h44m21s026352usUT.qdp
Wrote uvot_fluxes_210829d06h44m21s026352usUT.gif
Wrote uvot_fluxes_210829d06h44m21s026352usUT.ps
Wrote uvot_fluxes_210829d06h44m21s026352usUT_vis.qdp
Wrote uvot_fluxes_210829d06h44m21s026352usUT_uv.qdp
Wrote uvot_fluxes_210829d06h44m21s026352usUT_vis.gif
Wrote uvot_fluxes_210829d06h44m21s026352usUT_vis.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
u (0) , white (0) , b (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 1.15e-09 651895756.6 10431.1 -7828.7 0.0000 0.0416 99.00 99.00 651895756.6 0.0000 0.0416 99.00 99.00 22.47
The data range from T+651887927.9 s (7545.00 d) to T+651906187.7 s (7545.21 d)
Wrote uvot_fluxes_wtd_210829d06h44m21s026352usUT.qdp
Wrote uvot_fluxes_wtd_210829d06h44m21s026352usUT.gif
Wrote uvot_fluxes_wtd_210829d06h44m21s026352usUT.ps
Normal end of uvot_fluxes_wget.pl vrs. 2020-11-03a fem