# uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 251211d07h00m27s875566usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021893002 -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
# ========= GRB251208 ===================
Could not find/read custom source region custom_021893_src.reg
Used archived XRT position of 228.48108 29.04575 4.00
Reference: GCN_Circulars-43050-Tue,_9_Dec_2025_13:53:13_+0000
The position is (15:13:55.46, +29:02:44.7)
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(228.48108,29.04575,4") # color=red dash=0
Source region spec. is: 228.48108 29.04575 4"
Region file centered at (228.48108,29.04575), which is (15:13:55.46, +29:02:44.7)
Could not find/read custom background region custom_021893_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.
Subtract UTCF of -36.80996 from uncorrected trigger time of 786795437.29 in BAT summary file
# ============ Reading file sw00021893001uvv_sk.img ================
Long-term sensitivity correction to zero point is -0.231 at 786914967
The processing date in extension 0 is: 2025-12-09T01:04:39
The trigger time is: 786795474.09996. The reference is BAT GRB summary file
Using zero point of 17.659 for filter V
Use aperture correction of 1.030 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(228.48108,29.04575,25")
fk5;-circle(228.48108,29.04575,12.5")
fk5;-circle(228.477861,29.051553,6")
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 vv786914966I 119492.8 0.99 177.9 188.6 192 5611 5527 -0.037 0.082 99.00 19.2 -0.0372 0.0818 99.00 19.2 178 -50.125 110.277 99.00 0.001
2 vv786915150I 119676.4 0.99 1506.6 1470.1 204 41101 5526 -0.033 0.027 99.00 20.6 -0.0331 0.0256 99.00 20.7 1685 -44.900 34.747 99.00 0.001
3 vv786920239I 124765.4 0.99 203.5 301.8 208 8039 5592 0.014 0.091 22.27 19.0 -0.0280 0.0248 99.00 20.7 1888 -40.258 33.532 99.00 0.001
4 vv786920449I 124975.1 0.99 1505.4 1347.1 192 41148 5529 -0.056 0.026 99.00 20.9 -0.0407 0.0179 99.00 21.3 3393 -58.154 24.720 99.00 0.001
5 vv786925899I 130425.1 0.99 195.6 302.2 204 7704 5574 0.108 0.094 20.07 18.7 -0.0326 0.0177 99.00 21.2 3589 -50.768 24.344 99.00 0.001
6 vv786926100I 130626.9 0.99 1106.7 941.1 196 28549 5578 -0.058 0.029 99.00 20.7 -0.0386 0.0152 99.00 21.6 4696 -59.077 21.234 99.00 0.001
Sum (T+119493 to 131751): 4550.8 4725.4 (est. in src region) SNR_unwtd_sum: -2.54 0.9987 signif. UL: 21.57
0 4696 786920727 125252.5 6498.7 -5759.7 -0.0386 0.0152 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): -59.077 +/-20.849 snr: -2.8 mag: 99.00 UL: 13.79
# ============ Reading file sw00021893002uvv_sk.img ================
Use keyword TRIGTIME of 786881873.834 for trigger time.
Long-term sensitivity correction to zero point is -0.231 at 787110325
The processing date in extension 0 is: 2025-12-11T06:50:38
The trigger time is: 786881873.834. The reference is keyword in image file
Using zero point of 17.659 for filter V
Use aperture correction of 1.030 based on aperture of 4.00
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(228.48108,29.04575,25")
fk5;-circle(228.48108,29.04575,12.5")
fk5;-circle(228.477887,29.051531,6")
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 vv787110325I 228451.4 0.99 115.9 102.1 196 3097 5550 -0.065 0.092 99.00 19.2 -0.0649 0.0922 99.00 19.2 116 -167.177 237.781 99.00 0.000
2 vv787110446I 228572.8 0.99 1157.2 1130.6 196 34538 5560 -0.078 0.031 99.00 20.8 -0.0769 0.0292 99.00 20.9 1273 -198.343 75.478 99.00 0.000
3 vv787111627I 229753.6 0.99 52.7 80.8 196 2472 5521 -0.138 0.182 99.00 18.4 -0.0793 0.0290 99.00 20.9 1326 -202.309 74.527 99.00 0.000
4 vv787115654I 233780.3 0.99 136.6 147.4 204 4243 5539 -0.068 0.094 99.00 19.1 -0.0782 0.0277 99.00 21.0 1462 -200.316 71.392 99.00 0.000
5 vv787115795I 233921.9 0.99 1364.9 1396.0 196 40497 5514 -0.033 0.029 99.00 20.5 -0.0564 0.0200 99.00 21.3 2827 -146.803 52.277 99.00 0.000
6 vv787117188I 235314.3 0.98 71.7 113.9 192 3342 5567 -0.020 0.158 99.00 18.4 -0.0555 0.0199 99.00 21.3 2899 -145.341 51.879 99.00 0.000
7 vv787121599I 239725.8 0.99 104.1 85.5 200 2430 5558 -0.019 0.094 99.00 19.0 -0.0542 0.0195 99.00 21.4 3003 -141.438 50.830 99.00 0.000
8 vv787121708I 239834.5 0.99 1040.1 1050.0 200 31535 5536 -0.089 0.033 99.00 20.8 -0.0633 0.0168 99.00 21.7 4043 -165.436 44.211 99.00 0.000
9 vv787122770I 240896.4 0.99 69.6 109.6 188 3550 5506 -0.174 0.160 99.00 18.7 -0.0651 0.0167 99.00 21.7 4113 -168.433 43.985 99.00 0.000
Sum (T+228451 to 240967): 4216.0 4473.5 (est. in src region) SNR_unwtd_sum: -3.89 0.9987 signif. UL: 21.74
0 4113 787116399 234524.9 6442.2 -6073.5 -0.0651 0.0167 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): -79.519 +/-18.775 snr: -4.2 mag: 99.00 UL: 14.18
Rebinned Data for sw00021893002uvv_sk.img using a zero point of 17.659:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 4.65e+03 125252.3 6499.0 -5759.4 -0.0386 0.0152 99.00 99.00 125252.3 -0.0386 0.0152 99.00 99.00 21.57
1 4.07e+03 234524.7 6442.5 -6073.2 -0.0651 0.0167 99.00 99.00 176252.2 -0.0510 0.0113 99.00 99.00 22.29
The data range from T+119492.8 s (1.38 d) to T+240967.1 s (2.79 d)
Wrote uvot_fluxes_251211d07h00m27s875566usUT.qdp
Wrote uvot_fluxes_251211d07h00m27s875566usUT.gif
Wrote uvot_fluxes_251211d07h00m27s875566usUT.ps
Wrote uvot_fluxes_251211d07h00m27s875566usUT_vis.qdp
Wrote uvot_fluxes_251211d07h00m27s875566usUT_uv.qdp
Wrote uvot_fluxes_251211d07h00m27s875566usUT_vis.gif
Wrote uvot_fluxes_251211d07h00m27s875566usUT_vis.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
b (0) , u (0) , v (0) , white (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 0.000197 125121.3 6630.0 -5628.5 -0.4803 0.1697 99.00 99.00 125121.3 -0.4803 0.1697 99.00 99.00 21.64
1 4.58e-05 234288.1 6679.1 -5836.6 -0.7258 0.1877 99.00 99.00 145751.5 -0.5548 0.1312 99.00 99.00 22.20
The data range from T+119492.8 s (1.38 d) to T+240967.1 s (2.79 d)
Wrote uvot_fluxes_wtd_251211d07h00m27s875566usUT.qdp
Wrote uvot_fluxes_wtd_251211d07h00m27s875566usUT.gif
Wrote uvot_fluxes_wtd_251211d07h00m27s875566usUT.ps
Normal end of uvot_fluxes_wget.pl vrs. 2024-08-27 fem