# uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 250718d04h47m55s045348usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021845002 -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_021845_src.reg
Used archived XRT position of 66.77171 -46.56650 4.00
Reference: GCN_Circulars-41108-Thu,_17_Jul_2025_15:12:51_+0000
The position is (04:27:05.21, -46:33:59.4)
Using source region:
# Region file format: DS9 version 3.0
# uvot_fluxes.pl xrt
global font="helvetica 12 bold" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source=1
fk5;circle(66.77171,-46.56650,4") # color=red dash=0
Source region spec. is: 66.77171 -46.56650 4"
Region file centered at (66.77171,-46.56650), which is (04:27:05.21, -46:33:59.4)
Could not find/read custom background region custom_021845_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.
Failed to find trigger time in BAT summary file for trigger 00021845
# ============ Reading file sw00021845001uuu_sk.img ================
Long-term sensitivity correction to zero point is -0.245 at 774401660
The processing date in extension 0 is: 2025-07-17T04:58:10
The trigger time is: 0. The reference is trigger time unknown
Using zero point of 18.095 for filter U
Use aperture correction of 1.032 based on aperture of 4.00
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(66.77171,-46.56650,25")
fk5;-circle(66.77171,-46.56650,12.5")
fk5;-circle(66.772159,-46.563462,6")
fk5;-circle(66.780055,-46.562330,6")
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 uu774401659I 774401659.7 0.99 1728.5 2578.1 204 30751 5515 0.870 0.031 18.25 18.1 0.8703 0.0309 18.25 18.1 1728 5089824.929 180846.381 3.52 0.000
Sum (T+774401660 to 774403416): 2578.1 1137.5 (est. in src region) SNR_unwtd_sum: 28.14 0.9987 signif. UL: 18.14
0 1728 774402538 774402537.8 878.1 -878.1 0.8703 0.0309 18.246 0.039 -0.038
Total wtd_rate (for all exposures so far): 5089824.929 +/-179388.536 snr: 28.4 mag: 3.52 UL: 1.22
# ============ Reading file sw00021845002uuu_sk.img ================
Long-term sensitivity correction to zero point is -0.245 at 774481890
The processing date in extension 0 is: 2025-07-18T04:40:37
The trigger time is: 0. The reference is trigger time unknown
Using zero point of 18.095 for filter U
Use aperture correction of 1.032 based on aperture of 4.00
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(66.77171,-46.56650,25")
fk5;-circle(66.77171,-46.56650,12.5")
fk5;-circle(66.772067,-46.563411,6")
fk5;-circle(66.779941,-46.562311,6")
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 uu774481889I 774481889.7 0.98 444.0 772.9 196 18663 5462 0.244 0.067 19.63 19.0 0.2439 0.0667 19.63 19.0 444 1426760.746 390219.023 4.90 0.000
2 uu774486854I 774486854.8 0.99 1108.2 1778.4 200 39054 5496 0.337 0.040 19.27 18.9 0.3108 0.0346 19.36 19.1 1552 1835417.966 202333.226 4.63 0.000
Sum (T+774481890 to 774487981): 2551.4 2091.0 (est. in src region) SNR_unwtd_sum: 8.98 0.9987 signif. UL: 19.05
0 1552 774485901 774485901.0 2079.7 -4011.3 0.3108 0.0346 19.364 0.128 -0.115
Total wtd_rate (for all exposures so far): 4098560.176 +/-138748.755 snr: 29.5 mag: 3.76 UL: 1.46
Rebinned Data for sw00021845002uuu_sk.img using a zero point of 18.095:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 3.24e+03 774441910.2 46070.5 -40250.6 0.6060 0.0231 18.64 0.04 774441910.2 0.6060 0.0231 18.64 0.04 18.52
=========================================================
================ Start New Filter UVW2 ==================
=========================================================
# ============ Reading file sw00021845001uw2_sk.img ================
Long-term sensitivity correction to zero point is -0.345 at 774412892
The processing date in extension 0 is: 2025-07-17T04:58:11
The trigger time is: 0. The reference is trigger time unknown
Using zero point of 17.035 for filter UVW2
Use aperture correction of 1.035 based on aperture of 4.00
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(66.77171,-46.56650,25")
fk5;-circle(66.77171,-46.56650,12.5")
fk5;-circle(66.772184,-46.563434,6")
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 w2774412891I 774412891.7 1.00 1015.5 247.0 208 1359 5667 0.201 0.016 18.78 18.5 0.2012 0.0161 18.78 18.5 1015 3121462.336 249825.047 4.05 0.000
Sum (T+774412892 to 774413923): 247.0 49.9 (est. in src region) SNR_unwtd_sum: 12.49 0.9987 signif. UL: 18.54
0 1015 774413408 774413407.6 515.9 -515.9 0.2012 0.0161 18.777 0.090 -0.084
Total wtd_rate (for all exposures so far): 3672599.879 +/-134701.914 snr: 27.3 mag: 3.88 UL: 0.51
Rebinned Data for sw00021845001uw2_sk.img using a zero point of 17.035:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 1.01e+03 774413407.6 515.9 -515.9 0.2012 0.0161 18.78 0.08 774413407.6 0.2012 0.0161 18.78 0.08 18.54
The data range from T+774401659.7 s (8962.98 d) to T+774487980.7 s (8963.98 d)
Wrote uvot_fluxes_250718d04h47m55s045348usUT.qdp
Wrote uvot_fluxes_250718d04h47m55s045348usUT.gif
Wrote uvot_fluxes_250718d04h47m55s045348usUT.ps
Wrote uvot_fluxes_250718d04h47m55s045348usUT_vis.qdp
Wrote uvot_fluxes_250718d04h47m55s045348usUT_uv.qdp
Wrote uvot_fluxes_250718d04h47m55s045348usUT_vis.gif
Wrote uvot_fluxes_250718d04h47m55s045348usUT_vis.ps
Wrote uvot_fluxes_250718d04h47m55s045348usUT_uv.gif
Wrote uvot_fluxes_250718d04h47m55s045348usUT_uv.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
v (0) , white (0) , b (0) , u (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 4.05e-12 774402537.8 878.1 -878.1 6.5726 0.2335 18.25 0.04 774402537.8 6.5726 0.2335 18.25 0.04 18.14
1 3.24e-12 774485993.8 1986.9 -4104.2 2.3591 0.2611 19.36 0.11 774439624.3 4.7001 0.1741 18.61 0.04 18.50
The data range from T+774401659.7 s (8962.98 d) to T+774487980.7 s (8963.98 d)
Wrote uvot_fluxes_wtd_250718d04h47m55s045348usUT.qdp
Wrote uvot_fluxes_wtd_250718d04h47m55s045348usUT.gif
Wrote uvot_fluxes_wtd_250718d04h47m55s045348usUT.ps
Normal end of uvot_fluxes_wget.pl vrs. 2024-08-27 fem