# uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 250106d00h00m08s550910usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=00021750002 -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
# ========= GRB241228B ===================
Could not find/read custom source region custom_021750_src.reg
Used archived opt source position of 127.77290 6.84840 3.00
Reference: GCN_Circulars-38684
The position is (08:31:05.50, +06:50:54.2)
Using source region:
# Region file format: DS9 version 3.0
# uvot_fluxes.pl opt
global font="helvetica 12 bold" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source=1
fk5;circle(127.7729,6.8484,3") # color=red dash=0
Source region spec. is: 127.7729 6.8484 3"
Region file centered at (127.7729,6.8484), which is (08:31:05.50, +06:50:54.2)
Could not find/read custom background region custom_021750_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 -34.79676 from uncorrected trigger time of 757051985 in BAT summary file
# ============ Reading file sw00021750001uuu_sk.img ================
Long-term sensitivity correction to zero point is -0.238 at 757092020
The processing date in extension 0 is: 2024-12-28T17:53:01
The trigger time is: 757052019.79676. The reference is BAT GRB summary file
Using zero point of 18.102 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(127.7729,6.8484,25")
fk5;-circle(127.7729,6.8484,12.5")
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 uu757092019I 39999.9 0.99 1778.5 555.5 108 25875 5826 0.047 0.015 21.42 20.7 0.0472 0.0148 21.42 20.7 1778 14.485 4.532 17.39 0.012
Sum (T+ 40000 to 41807): 555.5 479.6 (est. in src region) SNR_unwtd_sum: 3.20 0.9987 signif. UL: 20.70
0 1778 757092923 40903.4 903.5 -903.5 0.0472 0.0148 21.417 0.408 -0.295
Total wtd_rate (for all exposures so far): 14.485 +/- 4.496 snr: 3.2 mag: 17.39 UL: 14.48
# ============ Reading file sw00021750002uuu_sk.img ================
Use keyword TRIGTIME of 757052019.8 for trigger time.
Long-term sensitivity correction to zero point is -0.239 at 757780780
The processing date in extension 0 is: 2025-01-05T23:49:00
The trigger time is: 757052019.8. The reference is keyword in image file
Using zero point of 18.101 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(127.7729,6.8484,25")
fk5;-circle(127.7729,6.8484,12.5")
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 uu757780780I 728760.5 1.00 1555.6 393.5 108 23050 5822 -0.024 0.014 99.00 21.9 -0.0242 0.0142 99.00 21.9 1556 -132.619 77.905 99.00 0.001
2 uu757786447I 734428.0 0.99 1528.7 486.8 116 22416 5849 0.031 0.016 21.89 20.9 0.0029 0.0107 24.43 21.7 3084 11.237 58.785 17.66 0.001
3 uu757792012I 739992.6 1.00 1189.6 334.1 108 17518 5816 0.008 0.017 23.33 21.1 0.0044 0.0091 24.00 21.8 4274 20.733 50.021 17.00 0.001
Sum (T+728761 to 741201): 1214.3 1197.4 (est. in src region) SNR_unwtd_sum: 0.48 0.9987 signif. UL: 21.81
0 4274 757786667 734647.6 6553.7 -5887.1 0.0044 0.0091 24.000 75.000 -1.222
Total wtd_rate (for all exposures so far): 14.529 +/- 4.478 snr: 3.2 mag: 17.38 UL: 14.48
Rebinned Data for sw00021750002uuu_sk.img using a zero point of 18.101:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 1.77e+03 40903.4 903.5 -903.5 0.0472 0.0148 21.42 0.30 40903.4 0.0472 0.0148 21.42 0.30 20.70
1 4.25e+03 734647.3 6554.0 -5886.8 0.0044 0.0091 24.00 1.22 530845.2 0.0169 0.0077 22.53 0.41 21.59
The data range from T+39999.9 s (0.46 d) to T+741201.2 s (8.58 d)
Wrote uvot_fluxes_250106d00h00m08s550910usUT.qdp
Wrote uvot_fluxes_250106d00h00m08s550910usUT.gif
Wrote uvot_fluxes_250106d00h00m08s550910usUT.ps
Wrote uvot_fluxes_250106d00h00m08s550910usUT_vis.qdp
Wrote uvot_fluxes_250106d00h00m08s550910usUT_uv.qdp
Wrote uvot_fluxes_250106d00h00m08s550910usUT_vis.gif
Wrote uvot_fluxes_250106d00h00m08s550910usUT_vis.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
v (0) , u (0) , b (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 0.00649 40903.4 903.5 -903.5 0.3541 0.1108 21.42 0.30 40903.4 0.3541 0.1108 21.42 0.30 20.70
1 2.19e-05 729550.8 790.3 -790.3 -0.1818 0.1068 99.00 99.00 43225.5 0.3236 0.1047 21.52 0.30 20.78
2 3.16e-05 737713.8 3487.5 -3285.7 0.1507 0.0880 22.34 0.50 46578.7 0.3104 0.0969 21.56 0.29 20.84
The data range from T+39999.9 s (0.46 d) to T+741201.2 s (8.58 d)
Wrote uvot_fluxes_wtd_250106d00h00m08s550910usUT.qdp
Wrote uvot_fluxes_wtd_250106d00h00m08s550910usUT.gif
Wrote uvot_fluxes_wtd_250106d00h00m08s550910usUT.ps
Normal end of uvot_fluxes_wget.pl vrs. 2024-08-27 fem