# uvot_fluxes_wget.pl vrs. 2020-11-03a fem at 210628d09h32m49s335767usUT
# /Home/eud/uvot_tdrss/perl/uvot_fluxes_wget.pl -seq=01056426001 -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
# ========= GRB210618A ===================
Could not find/read custom source region custom_1056426_src.reg
Used archived XRT position of 235.76979 46.06906 4.00
Reference: GCN_Circulars-30312-Thu,_24_Jun_2021_05:18:50_-0400
The position is (15:43:04.75, +46:04:08.6)
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(235.76979,46.06906,4") # color=red dash=0
Source region spec. is: 235.76979 46.06906 4"
Region file centered at (235.76979,46.06906), which is (15:43:04.75, +46:04:08.6)
Could not find/read custom background region custom_1056426_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 -27.21566 from uncorrected trigger time of 645673417 in BAT summary file
# ============ Reading file sw01056426992uwh_sk.img ================
Long-term sensitivity correction to zero point is -0.178 at 645677172
The processing date in extension 0 is: 2021-06-18T05:02:30
The trigger time is: 645673444.21566. The reference is BAT GRB summary file
Using zero point of 20.112 for filter WHITE
Use aperture correction of 1.035 based on aperture of 4.00
Using background region based on sources found in extension 3:
# 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(235.76979,46.06906,25")
fk5;-circle(235.76979,46.06906,12.5")
 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 wh645677172I    3728.1  0.96  147.4  609.8 200  18952  5829 -0.296 0.184 99.00 21.1 -0.2958 0.1838 99.00 21.1   147 -1.325  0.823 99.00 0.049 
   2 wh645677172E    3728.1  0.96  147.4  601.1 198  18934  5830 -0.307 0.182 99.00 21.1 
Low  bkg:   3 wh645677740I  196.6  10055  5856  8.733  0.087
   3 wh645677740I    4296.6  0.98  196.6  331.0 200  10055  5853 -0.067 0.099 99.00 21.5 -0.1639 0.0964 99.00 21.8   344 -0.617  0.435 99.00 0.069 
    Sum (T+  3728 to   4496):             940.8        993.9 (est. in src region)   SNR_unwtd_sum:  -1.70 0.9987 signif. UL:  21.82
  0   344 645677586    4142.2    354.2   -414.1   -0.1639   0.0964 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): -0.617 +/- 0.428 snr: -1.4 mag: 99.00 UL: 20.14
Rebinned Data for sw01056426992uwh_sk.img using a zero point of 20.112:
 No Exposure     t-avg        + / -       net_rate      +/-   mag   +/-     t-avg  sum_rate     +/-   mag   +/-   UL3
  0      335    4145.7    350.7   -417.7   -0.1639   0.0964 99.00 99.00    4145.7   -0.1639   0.0964 99.00 99.00 21.82
=========================================================
================ Start New Filter V ==================
=========================================================
# ============ Reading file sw01056426992uvv_sk.img ================
Long-term sensitivity correction to zero point is -0.214 at 645677153
The processing date in extension 0 is:  2021-06-18T05:02:30
The trigger time is: 645673444.21566. The reference is BAT GRB summary file
Using zero point of 17.676 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(235.76979,46.06906,25")
fk5;-circle(235.76979,46.06906,12.5")
 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 vv645677153E    3709.0  0.99    9.5   16.3 199    322  5859  0.586 0.447 18.26 17.0 
   2 vv645678151I    4707.3  1.00  133.3   49.7 200   1640  5854 -0.049 0.056 99.00 19.8 -0.0490 0.0557 99.00 19.8   133 -2.600  2.954 99.00 0.045 
    Sum (T+  4707 to   4843):              49.7         56.0 (est. in src region)   SNR_unwtd_sum:  -0.88 0.9987 signif. UL:  19.77
  0   133 645678219    4775.0     67.7    -67.7   -0.0490   0.0557 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): -0.653 +/- 0.421 snr: -1.6 mag: 99.00 UL: 17.75
# ============ Reading file sw01056426001uvv_sk.img ================
Use keyword TRIGTIME of 645673444.224 for trigger time.
Long-term sensitivity correction to zero point is -0.214 at 645695271
The processing date in extension 0 is:  2021-06-28T09:14:46
The trigger time is: 645673444.224. The reference is keyword in image file
Using zero point of 17.676 for filter V
Use aperture correction of  1.030 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(235.76979,46.06906,25")
fk5;-circle(235.76979,46.06906,12.5")
 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
Low  bkg:   1 vv645695270I  295.0   3338  5836  1.938  0.034
   1 vv645695270I   21826.3  1.00  295.0  115.4 192   3338  5836  0.019 0.038 21.96 19.8  0.0194 0.0382 21.96 19.8   295  4.737  9.323 18.60 0.011 
Low  bkg:   2 vv645695574I  295.0   3313  5888  1.907  0.033
   2 vv645695574I   22130.1  1.00  295.0  124.1 208   3313  5889  0.025 0.040 21.69 19.8  0.0221 0.0275 21.81 20.1   590  5.408  6.760 18.46 0.011 
Low  bkg:   3 vv645695877I  215.4   2480  5828  1.975  0.040
   3 vv645695877I   22433.6  1.00  215.4   96.3 200   2480  5828  0.054 0.048 20.85 19.4  0.0306 0.0239 21.46 20.1   806  7.468  5.888 18.11 0.010 
    Sum (T+ 21826 to  22653):             335.8        311.9 (est. in src region)   SNR_unwtd_sum:   1.28 0.9987 signif. UL:  20.14
  0   806 645695683   22239.1    413.4   -412.8    0.0306   0.0239 21.461  1.644  -0.626
Total wtd_rate (for all exposures so far): -0.605 +/- 0.420 snr: -1.4 mag: 99.00 UL: 17.72
Rebinned Data for sw01056426001uvv_sk.img using a zero point of 17.676:
 No Exposure     t-avg        + / -       net_rate      +/-   mag   +/-     t-avg  sum_rate     +/-   mag   +/-   UL3
  0      133    4775.0     67.7    -67.7   -0.0490   0.0557 99.00 99.00    4775.0   -0.0490   0.0557 99.00 99.00 19.77
  1      802   22239.0    413.5   -412.7    0.0306   0.0239 21.46  0.63   19759.2    0.0193   0.0220 21.96  0.82 20.33
=========================================================
================ Start New Filter B ==================
=========================================================
# ============ Reading file sw01056426992ubb_sk.img ================
Long-term sensitivity correction to zero point is -0.178 at 645677536
The processing date in extension 0 is:  2021-06-18T05:02:30
The trigger time is: 645673444.224. The reference is keyword in image file
Using zero point of 18.932 for filter B
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(235.76979,46.06906,25")
fk5;-circle(235.76979,46.06906,12.5")
 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
Low  bkg:   1 bb645677535I  196.6   3955  5868  3.428  0.055
   1 bb645677535I    4091.7  0.99  196.6  128.8 200   3955  5866 -0.032 0.061 99.00 20.8 -0.0319 0.0612 99.00 20.8   197 -0.468  0.896 99.00 0.099 
    Sum (T+  4092 to   4291):             128.8        134.8 (est. in src region)   SNR_unwtd_sum:  -0.52 0.9987 signif. UL:  20.83
  0   197 645677636    4191.6     99.9    -99.9   -0.0319   0.0612 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): -0.582 +/- 0.381 snr: -1.5 mag: 99.00 UL: 19.11
# ============ Reading file sw01056426001ubb_sk.img ================
Use keyword TRIGTIME of 645673444.224 for trigger time.
Long-term sensitivity correction to zero point is -0.178 at 645701733
The processing date in extension 0 is:  2021-06-28T09:14:46
The trigger time is: 645673444.224. The reference is keyword in image file
Using zero point of 18.932 for filter B
Use aperture correction of  1.035 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(235.76979,46.06906,25")
fk5;-circle(235.76979,46.06906,12.5")
 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
Low  bkg:   1 bb645701732I  295.0   5610  5872  3.238  0.043
   1 bb645701732I   28288.3  0.99  295.0  171.0 208   5610  5867 -0.098 0.047 99.00 21.5 -0.0983 0.0470 99.00 21.5   295 -9.770  4.675 99.00 0.015 
Low  bkg:   2 bb645702036I  295.0   5448  5796  3.186  0.043
   2 bb645702036I   28591.9  0.99  295.0  189.7 192   5448  5796  0.032 0.049 22.65 20.8 -0.0329 0.0341 99.00 21.6   590 -3.009  3.416 99.00 0.015 
Low  bkg:   3 bb645702340I   20.1    379  5816  3.248  0.167
   3 bb645702340I   28896.1  1.00   20.1    8.1 192    379  5803 -0.231 0.151 99.00 20.1 -0.0395 0.0333 99.00 21.7   610 -3.683  3.341 99.00 0.015 
    Sum (T+ 28288 to  28917):             368.8        391.9 (est. in src region)   SNR_unwtd_sum:  -1.18 0.9987 signif. UL:  21.66
  0   610 645702045   28600.4    316.1   -312.1   -0.0395   0.0333 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): -0.623 +/- 0.378 snr: -1.6 mag: 99.00 UL: 19.14
Rebinned Data for sw01056426001ubb_sk.img using a zero point of 18.932:
 No Exposure     t-avg        + / -       net_rate      +/-   mag   +/-     t-avg  sum_rate     +/-   mag   +/-   UL3
  0      195    4191.6     99.9    -99.9   -0.0319   0.0612 99.00 99.00    4191.6   -0.0319   0.0612 99.00 99.00 20.83
  1      607   28600.3    316.2   -312.1   -0.0395   0.0333 99.00 99.00   22655.1   -0.0376   0.0293 99.00 99.00 21.83
=========================================================
================ Start New Filter U ==================
=========================================================
# ============ Reading file sw01056426992uuu_sk.img ================
Long-term sensitivity correction to zero point is -0.193 at 645677331
The processing date in extension 0 is:  2021-06-18T05:02:30
The trigger time is: 645673444.224. The reference is keyword in image file
Using zero point of 18.147 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(235.76979,46.06906,25")
fk5;-circle(235.76979,46.06906,12.5")
 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 uu645677330I    3886.4  1.00  196.6   68.7 204   2006  5868 -0.005 0.044 99.00 20.3 -0.0054 0.0444 99.00 20.3   197 -0.156  1.275 99.00 0.098 
    Sum (T+  3886 to   4086):              68.7         69.8 (est. in src region)   SNR_unwtd_sum:  -0.12 0.9987 signif. UL:  20.29
  0   197 645677430    3986.3     99.9    -99.9   -0.0054   0.0444 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): -0.581 +/- 0.361 snr: -1.6 mag: 99.00 UL: 18.40
# ============ Reading file sw01056426001uuu_sk.img ================
Use keyword TRIGTIME of 645673444.224 for trigger time.
Long-term sensitivity correction to zero point is -0.193 at 645689534
The processing date in extension 0 is:  2021-06-28T09:14:46
The trigger time is: 645673444.224. The reference is keyword in image file
Using zero point of 18.147 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(235.76979,46.06906,25")
fk5;-circle(235.76979,46.06906,12.5")
 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
Low  bkg:   1 uu645689534I  295.0   2276  5828  1.324  0.028
   1 uu645689534I   16089.9  1.00  295.0   85.4 200   2276  5828  0.025 0.033 22.13 20.4  0.0255 0.0329 22.13 20.4   295  2.979  3.847 19.11 0.032 
Low  bkg:   2 uu645689837I  295.1   2251  5840  1.307  0.028
   2 uu645689837I   16393.4  1.00  295.1   91.2 200   2251  5842  0.049 0.034 21.41 20.2  0.0375 0.0236 21.71 20.6   590  4.418  2.790 18.68 0.032 
Low  bkg:   3 uu645690141I  275.1   1987  5824  1.240  0.028
   3 uu645690141I   16696.9  1.00  275.1   78.0 196   1987  5827  0.042 0.034 21.59 20.2  0.0389 0.0194 21.67 20.7   865  4.632  2.304 18.63 0.033 
    Sum (T+ 16090 to  16976):             254.5        222.0 (est. in src region)   SNR_unwtd_sum:   2.01 0.9987 signif. UL:  20.68
  0   865 645689977   16533.1    443.4   -443.2    0.0389   0.0194 21.672  0.748  -0.438
Total wtd_rate (for all exposures so far): -0.428 +/- 0.357 snr: -1.2 mag: 99.00 UL: 18.31
Rebinned Data for sw01056426001uuu_sk.img using a zero point of 18.147:
 No Exposure     t-avg        + / -       net_rate      +/-   mag   +/-     t-avg  sum_rate     +/-   mag   +/-   UL3
  0      196    3986.3     99.9    -99.9   -0.0054   0.0444 99.00 99.00    3986.3   -0.0054   0.0444 99.00 99.00 20.29
  1      863   16533.1    443.4   -443.2    0.0389   0.0194 21.67  0.44   14211.0    0.0307   0.0178 21.93  0.50 20.83
=========================================================
================ Start New Filter UVW1 ==================
=========================================================
# ============ Reading file sw01056426001uw1_sk.img ================
Use keyword TRIGTIME of 645673444.224 for trigger time.
Long-term sensitivity correction to zero point is -0.271 at 645683695
The processing date in extension 0 is:  2021-06-28T09:14:46
The trigger time is: 645673444.224. The reference is keyword in image file
Using zero point of 17.169 for filter UVW1
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(235.76979,46.06906,25")
fk5;-circle(235.76979,46.06906,12.5")
 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
Low  bkg:   1 w1645683695I  595.7    944  5872  0.270  0.009
   1 w1645683695I   10251.2  1.00  595.7   25.5 196    944  5872 -0.010 0.009 99.00 21.3 -0.0104 0.0090 99.00 21.3   596 -1.944  1.676 99.00 0.101 
Low  bkg:   2 w1645713194I  288.7    426  5816  0.254  0.012
   2 w1645713194I   39750.1  1.00  288.7   11.9 188    426  5816 -0.007 0.013 99.00 20.8 -0.0092 0.0073 99.00 21.6   884 -2.050  1.647 99.00 0.079 
    Sum (T+ 10251 to  40043):              37.4         45.3 (est. in src region)   SNR_unwtd_sum:  -1.27 0.9987 signif. UL:  21.57
  0   884 645693578   20133.8  19909.7  -9882.6   -0.0092   0.0073 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): -0.493 +/- 0.349 snr: -1.4 mag: 99.00 UL: 17.41
Rebinned Data for sw01056426001uw1_sk.img using a zero point of 17.169:
 No Exposure     t-avg        + / -       net_rate      +/-   mag   +/-     t-avg  sum_rate     +/-   mag   +/-   UL3
  0      595   10553.8    302.6   -302.6   -0.0104   0.0090 99.00 99.00   10553.8   -0.0104   0.0090 99.00 99.00 21.32
  1      289   39896.8    146.7   -146.7   -0.0069   0.0126 99.00 99.00   20134.1   -0.0092   0.0073 99.00 99.00 21.57
=========================================================
================ Start New Filter UVM2 ==================
=========================================================
# ============ Reading file sw01056426001um2_sk.img ================
Use keyword TRIGTIME of 645673444.224 for trigger time.
Long-term sensitivity correction to zero point is -0.259 at 645682789
The processing date in extension 0 is:  2021-06-28T09:14:46
The trigger time is: 645673444.224. The reference is keyword in image file
Using zero point of 16.591 for filter UVM2
Use aperture correction of  1.031 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(235.76979,46.06906,25")
fk5;-circle(235.76979,46.06906,12.5")
 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 m2645682788I    9344.3  1.00  885.6   23.0 196    640  5836  0.002 0.006 23.46 20.9  0.0018 0.0057 23.46 20.9   886  0.530  1.678 20.98 0.139 
   2 m2645705731I   32287.6  1.00  874.8   24.7 200    629  5832  0.004 0.006 22.66 20.7  0.0028 0.0041 22.99 21.1  1760  0.783  1.614 20.56 0.090 
    Sum (T+  9344 to  33176):              47.8         43.1 (est. in src region)   SNR_unwtd_sum:   0.67 0.9987 signif. UL:  21.12
  0  1760 645694637   21193.2  11983.2 -11848.9    0.0028   0.0041 22.991 76.009  -0.992
Total wtd_rate (for all exposures so far): -0.426 +/- 0.340 snr: -1.3 mag: 99.00 UL: 16.82
Rebinned Data for sw01056426001um2_sk.img using a zero point of 16.591:
 No Exposure     t-avg        + / -       net_rate      +/-   mag   +/-     t-avg  sum_rate     +/-   mag   +/-   UL3
  0      885    9794.2    449.9   -449.9    0.0018   0.0057 23.46  1.55    9794.2    0.0018   0.0057 23.46  1.55 20.86
  1      875   32732.0    444.4   -444.4    0.0037   0.0059 22.66  1.04   21193.1    0.0028   0.0041 22.99  0.99 21.12
=========================================================
================ Start New Filter UVW2 ==================
=========================================================
# ============ Reading file sw01056426992uw2_sk.img ================
Long-term sensitivity correction to zero point is -0.342 at 645677947
The processing date in extension 0 is:  2021-06-18T05:02:30
The trigger time is: 645673444.224. The reference is keyword in image file
Using zero point of 17.038 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(235.76979,46.06906,25")
fk5;-circle(235.76979,46.06906,12.5")
 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
Low  bkg:   1 w2645677946I  196.6    176  5828  0.153  0.012
   1 w2645677946I    4502.5  1.00  196.6    4.5 204    176  5828 -0.009 0.011 99.00 20.8 -0.0088 0.0114 99.00 20.8   197 -0.805  1.050 99.00 0.348 
    Sum (T+  4502 to   4702):               4.5          6.1 (est. in src region)   SNR_unwtd_sum:  -0.77 0.9987 signif. UL:  20.83
  0   197 645678047    4602.3     99.9    -99.9   -0.0088   0.0114 99.000 99.000 -99.000
Total wtd_rate (for all exposures so far): -0.457 +/- 0.325 snr: -1.4 mag: 99.00 UL: 17.35
# ============ Reading file sw01056426001uw2_sk.img ================
Use keyword TRIGTIME of 645673444.224 for trigger time.
Long-term sensitivity correction to zero point is -0.342 at 645694364
The processing date in extension 0 is:  2021-06-28T09:14:46
The trigger time is: 645673444.224. The reference is keyword in image file
Using zero point of 17.038 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(235.76979,46.06906,25")
fk5;-circle(235.76979,46.06906,12.5")
 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 w2645694364I   20920.0  1.00  885.6   35.9 200    975  5832  0.003 0.007 23.39 21.0  0.0029 0.0071 23.39 21.0   886  1.235  3.040 20.06 0.062 
    Sum (T+ 20920 to  21820):              35.9         33.4 (est. in src region)   SNR_unwtd_sum:   0.41 0.9987 signif. UL:  21.03
  0   886 645694814   21369.9    449.9   -449.9    0.0029   0.0071 23.385 75.615  -1.348
Total wtd_rate (for all exposures so far): -0.435 +/- 0.323 snr: -1.3 mag: 99.00 UL: 17.34
Rebinned Data for sw01056426001uw2_sk.img using a zero point of 17.038:
 No Exposure     t-avg        + / -       net_rate      +/-   mag   +/-     t-avg  sum_rate     +/-   mag   +/-   UL3
  0      197    4602.3     99.9    -99.9   -0.0088   0.0114 99.00 99.00    4602.3   -0.0088   0.0114 99.00 99.00 20.83
  1      885   21369.9    449.9   -449.9    0.0029   0.0071 23.39  1.35   18323.5    0.0008   0.0062 24.81  2.38 21.26
The data range from T+3728.1 s (0.04 d) to T+40043.4 s (0.46 d)
Wrote uvot_fluxes_210628d09h32m49s335767usUT.qdp
Wrote uvot_fluxes_210628d09h32m49s335767usUT.gif
Wrote uvot_fluxes_210628d09h32m49s335767usUT.ps
Wrote uvot_fluxes_210628d09h32m49s335767usUT_vis.qdp
Wrote uvot_fluxes_210628d09h32m49s335767usUT_uv.qdp
Wrote uvot_fluxes_210628d09h32m49s335767usUT_vis.gif
Wrote uvot_fluxes_210628d09h32m49s335767usUT_vis.ps
Wrote uvot_fluxes_210628d09h32m49s335767usUT_uv.gif
Wrote uvot_fluxes_210628d09h32m49s335767usUT_uv.ps
# ================ Make Light Curve for Weighted Filters ==========
Use the following filters with indicated color corrections (mags):
  u (0)  , white (0)  , b (0)  , v (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     4.93    4224.7    618.0   -496.6   -0.1437   0.0950 99.00 99.00    4224.7   -0.1437   0.0950 99.00 99.00 21.97
  1   0.0288   17041.9   5610.6   -952.1    0.2840   0.1268 21.66  0.40    4299.1   -0.1338   0.0929 99.00 99.00 21.97
  2    0.026   28596.6    320.0   -308.3   -0.1597   0.1161 99.00 99.00    4425.7   -0.1347   0.0898 99.00 99.00 22.02
The data range from T+3728.1 s (0.04 d) to T+40043.4 s (0.46 d)
Wrote uvot_fluxes_wtd_210628d09h32m49s335767usUT.qdp
Wrote uvot_fluxes_wtd_210628d09h32m49s335767usUT.gif
Wrote uvot_fluxes_wtd_210628d09h32m49s335767usUT.ps
Found 14 exposures with unusual background rate
Normal end of uvot_fluxes_wget.pl vrs. 2020-11-03a fem