# uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 251129d19h32m28s005656usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=01418333992 -use_uvot -rebin -plot_mag -sens_corr -search_src_reg -wrk_dir=/data/uvot/swift_data/home/uvot_lc -web -zp_2011 -gamma=1.0 -use_filter_wtd=white v b u
# Current directory: /data/uvot/swift_data/home/uvot_lc
# ========= GRB251129 ===================
Could not find/read custom source region custom_1418333_src.reg
Used archived BAT position of 174.52000 -20.92700
Reference: GCN_Position_Notice_Sat_29_Nov_25_11:12:34_UT
The position is (11:38:04.80, -20:55:37.2)
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(174.520,-20.927,3") # color=red dash=0
Source region spec. is: 174.520 -20.927 3"
Region file centered at (174.520,-20.927), which is (11:38:04.80, -20:55:37.2)
Could not find/read custom background region custom_1418333_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 -36.75626 from uncorrected trigger time of 786107108.38 in BAT summary file
# ============ Reading file sw01418333992uwh_sk.img ================
Use keyword TRIGTIME of 786107145.152 for trigger time.
Long-term sensitivity correction to zero point is -0.175 at 786108377
The processing date in extension 0 is: 2025-11-29T19:26:39
The trigger time is: 786107145.152. The reference is keyword in image file
Using zero point of 20.115 for filter WHITE
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(174.520,-20.927,25")
fk5;-circle(174.520,-20.927,12.5")
fk5;-circle(174.524309,-20.929007,6")
fk5;-circle(174.519653,-20.930521,6")
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
High bkg: 1 wh786108377I 147.4 49467 5187 64.696 0.291
1 wh786108377I 1232.2 0.88 147.4 1129.8 110 49467 5187 0.000 0.280 99.00 19.7 0.0000 0.2802 99.00 19.7 147 0.000 0.430 99.00 0.080
above line uses coinc_corr_src: 0.878 corr_bkg: 0.878
High bkg: 2 wh786108377E 147.4 49331 5182 64.584 0.291
2 wh786108377E 1232.2 0.88 147.4 1152.6 111 49331 5182 0.000 0.281 99.00 19.7
above line uses coinc_corr_src: 0.879 corr_bkg: 0.879
Sum (T+ 1232 to 1382): 1049.0 1049.0 (est. in src region) SNR_unwtd_sum: 0.00 0.999999638888889 signif. UL: 19.73
0 147 786108452 1307.1 74.9 -74.9 0.0000 0.2802 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/- 0.426 snr: 0.0 mag: 99.00 UL: 19.27
Rebinned Data for sw01418333992uwh_sk.img using a zero point of 20.115:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 129 1307.1 74.9 -74.9 0.0000 0.2802 99.00 99.00 1307.1 0.0000 0.2802 99.00 99.00 20.23
=========================================================
================ Start New Filter V ==================
=========================================================
# ============ Reading file sw01418333992uvv_sk.img ================
Use keyword TRIGTIME of 786107145.152 for trigger time.
Long-term sensitivity correction to zero point is -0.231 at 786108534
The processing date in extension 0 is: 2025-11-29T19:26:38
The trigger time is: 786107145.152. The reference is keyword in image file
Using zero point of 17.659 for filter V
Use aperture correction of 1.087 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(174.520,-20.927,25")
fk5;-circle(174.520,-20.927,12.5")
fk5;-circle(174.524304,-20.929035,6")
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 vv786108533E 1388.5 0.97 19.5 39.0 111 1717 5456 0.000 0.344 99.00 17.1 0.0000 0.3443 99.00 17.1 19 0.000 5.430 99.00 0.034
Sum (T+ 1388 to 1408): 34.9 34.9 (est. in src region) SNR_unwtd_sum: 0.00 0.999999638888889 signif. UL: 17.05
0 19 786108544 1398.4 9.9 -9.9 0.0000 0.3443 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): 0.000 +/- 0.417 snr: 0.0 mag: 99.00 UL: 16.84
Rebinned Data for sw01418333992uvv_sk.img using a zero point of 17.659:
No Exposure t-avg + / - net_rate +/- mag +/- t-avg sum_rate +/- mag +/- UL3
0 18.9 1398.4 9.9 -9.9 0.0000 0.3443 99.00 99.00 1398.4 0.0000 0.3443 99.00 99.00 17.55
=========================================================
================ Start New Filter UVM2 ==================
=========================================================
# ============ Reading file sw01418333992um2_sk.img ================
Use keyword TRIGTIME of 786107145.152 for trigger time.
Long-term sensitivity correction to zero point is -0.259 at 786108558
The processing date in extension 0 is: 2025-11-29T19:26:39
The trigger time is: 786107145.152. The reference is keyword in image file
Using zero point of 16.591 for filter UVM2
Use aperture correction of 1.106 based on aperture of 3.00
There are no aspect corrected images to process.
The data range from T+1232.2 s (0.01 d) to T+1408.3 s (0.02 d)
Wrote uvot_fluxes_251129d19h32m28s005656usUT.qdp
Wrote uvot_fluxes_251129d19h32m28s005656usUT.gif
Wrote uvot_fluxes_251129d19h32m28s005656usUT.ps
Wrote uvot_fluxes_251129d19h32m28s005656usUT_vis.qdp
Wrote uvot_fluxes_251129d19h32m28s005656usUT_uv.qdp
Wrote uvot_fluxes_251129d19h32m28s005656usUT_vis.gif
Wrote uvot_fluxes_251129d19h32m28s005656usUT_vis.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
b (0) , white (0) , v (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 4.6 1307.1 101.1 -74.9 0.0000 0.3290 99.00 99.00 1307.1 0.0000 0.3290 99.00 99.00 20.23
The data range from T+1232.2 s (0.01 d) to T+1408.3 s (0.02 d)
Wrote uvot_fluxes_wtd_251129d19h32m28s005656usUT.qdp
Wrote uvot_fluxes_wtd_251129d19h32m28s005656usUT.gif
Wrote uvot_fluxes_wtd_251129d19h32m28s005656usUT.ps
Found 2 exposures with unusual background rate
Normal end of uvot_fluxes_wget.pl vrs. 2024-08-27 fem