# uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 240901d10h44m30s692292usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021704001 -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
# ========= GRB240221A ===================
Could not find/read custom source region custom_021704_src.reg
Used archived BAT position of 354.23000 -10.18000
Reference: GCN_Circ-37220
The position is (23:36:55.20, -10:10:48.0)
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(354.23,-10.18,3") # color=red dash=0
Source region spec. is: 354.23 -10.18 3"
Region file centered at (354.23,-10.18), which is (23:36:55.20, -10:10:48.0)
Could not find/read custom background region custom_021704_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.
Subtract UTCF of -34.02708 from uncorrected trigger time of 745871750 in BAT summary file
# ============ Reading file sw00021704001uuu_sk.img ================
Long-term sensitivity correction to zero point is -0.234 at 746049791
The processing date in extension 0 is: 2024-09-01T10:28:20
The trigger time is: 745871784.02708. The reference is BAT GRB summary file
Using zero point of 18.106 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(354.23,-10.18,25")
fk5;-circle(354.23,-10.18,12.5")
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 uu746049790I 178006.5 0.99 1643.8 530.5 108 30038 5824 0.000 0.016 99.00 20.8 0.0000 0.0160 99.00 20.8 1644 0.000 21.426 99.00 0.002
Sum (T+178007 to 179677): 557.0 557.0 (est. in src region) SNR_unwtd_sum: 0.00 0.999999638888889 signif. UL: 20.83
0 1644 746050626 178841.6 835.1 -835.1 0.0000 0.0160 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/-21.230 snr: 0.0 mag: 99.00 UL: 13.02
Rebinned Data for sw00021704001uuu_sk.img using a zero point of 18.106:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 1.63e+03 178841.6 835.1 -835.1 0.0000 0.0160 99.00 99.00 178841.6 0.0000 0.0160 99.00 99.00 21.33
=========================================================
================ Start New Filter UVW2 ==================
=========================================================
# ============ Reading file sw00021704001uw2_sk.img ================
Long-term sensitivity correction to zero point is -0.345 at 746094568
The processing date in extension 0 is: 2024-09-01T10:28:20
The trigger time is: 745871784.02708. The reference is BAT GRB summary file
Using zero point of 17.035 for filter UVW2
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(354.23,-10.18,25")
fk5;-circle(354.23,-10.18,12.5")
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 w2746094567I 222783.6 1.00 1331.7 32.6 116 1792 5876 0.000 0.005 99.00 21.0 0.0000 0.0050 99.00 21.0 1332 0.000 22.378 99.00 0.008
2 w2746100181I 228397.4 1.00 981.5 34.3 112 1624 5864 0.000 0.006 99.00 20.8 0.0000 0.0039 99.00 21.3 2313 0.000 17.744 99.00 0.008
3 w2746105856I 234072.2 1.00 673.7 25.8 108 1198 5824 0.000 0.008 99.00 20.5 0.0000 0.0035 99.00 21.4 2987 0.000 15.979 99.00 0.007
4 w2746111551I 239767.9 1.00 274.4 14.2 116 620 5832 0.000 0.014 99.00 19.9 0.0000 0.0034 99.00 21.4 3261 0.000 15.566 99.00 0.007
Sum (T+222784 to 240047): 100.9 100.9 (est. in src region) SNR_unwtd_sum: 0.00 0.999999638888889 signif. UL: 21.43
0 3261 746100527 228743.0 11303.7 -5959.4 0.0000 0.0034 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/-12.507 snr: 0.0 mag: 99.00 UL: 12.53
Rebinned Data for sw00021704001uw2_sk.img using a zero point of 17.035:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 3.26e+03 228742.5 11304.2 -5958.9 0.0000 0.0034 99.00 99.00 228742.5 0.0000 0.0034 99.00 99.00 21.92
The data range from T+178006.5 s (2.06 d) to T+240046.7 s (2.78 d)
Wrote uvot_fluxes_240901d10h44m30s692292usUT.qdp
Wrote uvot_fluxes_240901d10h44m30s692292usUT.gif
Wrote uvot_fluxes_240901d10h44m30s692292usUT.ps
Wrote uvot_fluxes_240901d10h44m30s692292usUT_vis.qdp
Wrote uvot_fluxes_240901d10h44m30s692292usUT_uv.qdp
Wrote uvot_fluxes_240901d10h44m30s692292usUT_vis.gif
Wrote uvot_fluxes_240901d10h44m30s692292usUT_vis.ps
Wrote uvot_fluxes_240901d10h44m30s692292usUT_uv.gif
Wrote uvot_fluxes_240901d10h44m30s692292usUT_uv.ps
Normal end of uvot_fluxes_wget.pl vrs. 2024-08-27 fem