# uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 241106d04h07m20s962615usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021727001 -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_021727_src.reg
Used archived BAT position of 32.55200 31.55400
Reference: GCN_FOM_Notice_Tue_05_Nov_24_23:29:05_UT
The position is (02:10:12.48, +31:33:14.4)
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(32.552,+31.554,3") # color=red dash=0
Source region spec. is: 32.552 +31.554 3"
Region file centered at (32.552,+31.554), which is (02:10:12.48, +31:33:14.4)
Could not find/read custom background region custom_021727_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 00021727
# ============ Reading file sw00021727001uuu_sk.img ================
Long-term sensitivity correction to zero point is -0.237 at 752535947
The processing date in extension 0 is: 2024-11-06T03:59:29
The trigger time is: 0. The reference is trigger time unknown
Using zero point of 18.103 for filter U
Use aperture correction of 1.100 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(32.552,+31.554,25")
fk5;-circle(32.552,+31.554,12.5")
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 uu752535946I 752535946.5 0.99 1699.9 625.7 112 33391 5864 0.000 0.017 99.00 20.8 0.0000 0.0166 99.00 20.8 1700 0.000 93577.104 99.00 0.000
2 uu752541609I 752541609.1 0.99 1219.1 491.6 104 27079 5856 0.000 0.020 99.00 20.6 0.0000 0.0128 99.00 21.1 2919 0.000 72157.478 99.00 0.000
Sum (T+752535947 to 752542848): 1118.7 1118.7 (est. in src region) SNR_unwtd_sum: 0.00 0.999999638888889 signif. UL: 21.07
0 2919 752539073 752539072.9 3774.7 -3126.4 0.0000 0.0128 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/-71497.149 snr: 0.0 mag: 99.00 UL: 4.20
Rebinned Data for sw00021727001uuu_sk.img using a zero point of 18.103:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 2.9e+03 752539071.9 3775.8 -3125.4 0.0000 0.0128 99.00 99.00 752539071.9 0.0000 0.0128 99.00 99.00 21.57
The data range from T+752535946.5 s (8709.91 d) to T+752542847.7 s (8709.99 d)
Wrote uvot_fluxes_241106d04h07m20s962615usUT.qdp
Wrote uvot_fluxes_241106d04h07m20s962615usUT.gif
Wrote uvot_fluxes_241106d04h07m20s962615usUT.ps
Wrote uvot_fluxes_241106d04h07m20s962615usUT_vis.qdp
Wrote uvot_fluxes_241106d04h07m20s962615usUT_uv.qdp
Wrote uvot_fluxes_241106d04h07m20s962615usUT_vis.gif
Wrote uvot_fluxes_241106d04h07m20s962615usUT_vis.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
white (0) , u (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 2.56e-11 752539006.7 3841.0 -3060.2 0.0000 0.0959 99.00 99.00 752539006.7 0.0000 0.0959 99.00 99.00 21.57
The data range from T+752535946.5 s (8709.91 d) to T+752542847.7 s (8709.99 d)
Wrote uvot_fluxes_wtd_241106d04h07m20s962615usUT.qdp
Wrote uvot_fluxes_wtd_241106d04h07m20s962615usUT.gif
Wrote uvot_fluxes_wtd_241106d04h07m20s962615usUT.ps
Normal end of uvot_fluxes_wget.pl vrs. 2024-08-27 fem