# uvot_fluxes_wget.pl vrs. 2020-11-03a fem at 211022d22h52m00s003758usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021463001 -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
# ========= GRB211018A ===================
Could not find/read custom source region custom_021463_src.reg
Used archived BAT position of 19.68000 -3.60000
Reference: GCN_Circ-30943
The position is (01:18:43.20, -03:36:00.0)
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(19.68,-3.60,3") # color=red dash=0
Source region spec. is: 19.68 -3.60 3"
Region file centered at (19.68,-3.60), which is (01:18:43.20, -03:36:00.0)
Could not find/read custom background region custom_021463_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 51984.0,
3 sigma should become about 5.6 sigma and 2 sigma should become about 5.1 sigma.
Accordingly confidence limits in the tables have been adjusted from 0.9987 to 0.99999997.
No adjustment has been made for the confidence limits for the rebinned data or the plots.
Subtract UTCF of -27.92032 from uncorrected trigger time of 656288893.94 in BAT summary file
# ============ Reading file sw00021463001uwh_sk.img ================
Long-term sensitivity correction to zero point is -0.176 at 656593409
The processing date in extension 0 is: 2021-10-22T21:22:19
The trigger time is: 656288921.86032. The reference is BAT GRB summary file
Using zero point of 20.114 for filter WHITE
Use aperture correction of 1.108 based on aperture of 3.00
Using background region based on sources found in extension 5:
# 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(19.68,-3.60,25")
fk5;-circle(19.68,-3.60,12.5")
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 wh656593408I 304486.7 0.97 98.2 228.7 112 10027 5852 0.000 0.163 99.00 20.2 0.0000 0.1633 99.00 20.2 98 0.000 58.477 99.00 0.001
2 wh656593511I 304589.3 0.97 985.0 1978.3 112 99938 5840 0.000 0.051 99.00 21.5 0.0000 0.0491 99.00 21.5 1083 0.000 17.599 99.00 0.001
3 wh656594516I 305594.8 0.97 63.3 119.3 116 6503 5880 0.000 0.207 99.00 20.0 0.0000 0.0477 99.00 21.6 1146 0.000 17.129 99.00 0.001
4 wh656616049I 327127.1 0.97 136.5 254.8 112 13854 5864 0.000 0.138 99.00 20.4 0.0000 0.0451 99.00 21.6 1283 0.000 16.301 99.00 0.001
5 wh656616190I 327268.7 0.97 1369.8 2799.4 116 138827 5828 0.000 0.044 99.00 21.6 0.0000 0.0316 99.00 22.0 2653 0.000 11.808 99.00 0.001
6 wh656617587I 328665.8 0.97 91.8 176.7 120 9523 5880 0.000 0.176 99.00 20.1 0.0000 0.0312 99.00 22.0 2745 0.000 11.634 99.00 0.001
Sum (T+304487 to 328759): 5459.0 5459.0 (est. in src region) SNR_unwtd_sum: 0.00 0.999999974992305 signif. UL: 22.02
0 2745 656607311 318388.8 10370.3 -13902.1 0.0000 0.0312 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/-11.522 snr: 0.0 mag: 99.00 UL: 15.60
Rebinned Data for sw00021463001uwh_sk.img using a zero point of 20.114:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 2.65e+03 318390.7 10368.4 -13904.0 0.0000 0.0312 99.00 99.00 318390.7 0.0000 0.0312 99.00 99.00 22.61
The data range from T+304486.7 s (3.52 d) to T+328759.1 s (3.81 d)
Wrote uvot_fluxes_211022d22h52m00s003758usUT.qdp
Wrote uvot_fluxes_211022d22h52m00s003758usUT.gif
Wrote uvot_fluxes_211022d22h52m00s003758usUT.ps
Wrote uvot_fluxes_211022d22h52m00s003758usUT_vis.qdp
Wrote uvot_fluxes_211022d22h52m00s003758usUT_uv.qdp
Wrote uvot_fluxes_211022d22h52m00s003758usUT_vis.gif
Wrote uvot_fluxes_211022d22h52m00s003758usUT_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 0.00628 317387.8 11371.2 -12901.1 0.0000 0.0367 99.00 99.00 317387.8 0.0000 0.0367 99.00 99.00 22.61
The data range from T+304486.7 s (3.52 d) to T+328759.1 s (3.81 d)
Wrote uvot_fluxes_wtd_211022d22h52m00s003758usUT.qdp
Wrote uvot_fluxes_wtd_211022d22h52m00s003758usUT.gif
Wrote uvot_fluxes_wtd_211022d22h52m00s003758usUT.ps
Normal end of uvot_fluxes_wget.pl vrs. 2020-11-03a fem