srclist overlap message for exposure 1 of trigger 1057131
uvot_overlap.pl vrs. 2010-12-20b fem started at 210621d17h27m13s585260usUT
The observation of trigger 1057131 started 2021-06-21T17:05:48.9
Examining file ./1057131_g71_uvot_sky_srclist.fits
The exposure ID is 645987948
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (238.8048,-54.0670) with a roll angle of 230.5
It is square with sides of 8.03 arc min. for an area of 64.51 sq arc min
The BAT error circle is centered at (238.8120,-54.0630) with a radius of 3.000 arc min
This is 0.350 arc min from the center of the uvot region
The area of the BAT error circle is 28.27 sq. arc min
The UVOT/BAT overlap is 28.27 sq. arc min or 1.00 of the BAT error circle
The XRT error circle is centered at (238.7865,-54.0614) with a radius of 0.032 arc min
This is 0.729 arc min from the center of the uvot region
The area of the XRT error circle is 0.003 sq. arc min
The UVOT/XRT overlap is 0.003 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1057131
find_uvot_ag.pl vrs. 2020-10-30 fem started at 210621d17h27m16s186019usUT
Observation start time is 2021-06-21T17:05:48.9
Examining file ./1057131_g71_uvot_catalog_srclist.fits
The exposure ID is 645987948
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 1057131_g71
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 1.000
srclist_overlap returned: xrt_overlap 1.000
Dimmest detected source in 1057131_g71 has mag 18.83
Aspect correction adds -0.00112 degrees (-0.269 sec of time = -2.36 arc sec) to RA
Aspect correction adds -0.00037 degrees (-1.34 arcsec) to Dec
Total aspect correction is 2.72 arcsec
Star catalogs centered at 238.8142 , -54.0670 with radius 6.40 arc min.
n_usno: 2233 n_gsc: 0
*** WARNING -- bright star catalog has 7 entries brighter than 12 mag
The brightest has mag 9.25418
RA DEC Mag Color
bright star 0: 238.80655 (15:55:13.57) -54.06409 (-54:03:50.7) 11.70 USNO-R
bright star 1: 238.79818 (15:55:11.56) -54.07666 (-54:04:36.0) 10.71 USNO-V
bright star 2: 238.85814 (15:55:25.95) -54.07434 (-54:04:27.6) 11.40 USNO-V
bright star 3: 238.76109 (15:55:02.66) -54.00243 (-54:00:08.7) 9.25 USNO-V
bright star 4: 238.89704 (15:55:35.29) -54.12468 (-54:07:28.9) 10.56 USNO-V
bright star 5: 238.95935 (15:55:50.24) -54.05451 (-54:03:16.2) 11.43 USNO-V
bright star 6: 238.65697 (15:54:37.67) -54.02573 (-54:01:32.6) 9.59 USNO-V
Mean distance difference (CAT_DELTA) for 163 matched entries is 0.805" for 1057131_g71
Mean and std. dev of mag. difference (MAG_DELTA) are 1.705 and 0.551 for 1057131_g71
Found 31 entries without IDs and 16 entries that are acceptable afterglow candidates for 1057131_g71.
Acceptable entries have no ID, XRT distances < 5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
7 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=238.8120 (15:55:14.88) DEC=-54.0630 (-54:03:46.8)
XRT distances are from RA=238.7865 (15:55:08.75) DEC=-54.0614 (-54:03:40.9)
-----------------
Entry 11 in the list of sources is a candidate afterglow for 1057131_g71 with 1x1 stamp
ra=238.81874 (15:55:16.50) dec=-54.04479 (-54:02:41.3) +/- 1.1" mag=18.03+/-0.35
dist=90.6 REFID=156
*** The position of this source is inconsistent with the XRT position.
The position is 67.1 arc sec from the BAT position.
src: 11 distr. of nearby unmatched sources: 0 0 0 0 0
Found 10 entries in star catalog(s) within 20.0" of the candidate.
printing all entries
(Entries within 2 arc sec of a source list entry are considered a match)
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.8238 -54.0484 16.7 -1 USNO-B1 20.52 18.87 19.60
238.8107 -54.0461 17.6 -1 USNO-B1 18.98 17.61 18.22
238.8150 -54.0447 8.0 -1 USNO-B1 99.99 19.33 99.99
238.8269 -54.0459 17.6 -1 USNO-B1 18.63 17.02 17.73
238.8200 -54.0447 2.7 -1 USNO-B1 16.91 15.79 16.29 *
238.8204 -54.0447 3.5 -1 USNO-B1 19.34 17.08 18.08 *
238.8151 -54.0437 8.5 -1 USNO-B1 19.60 18.76 19.13
238.8256 -54.0434 15.3 -1 USNO-B1 15.28 13.68 14.39
238.8235 -54.0425 13.1 -1 USNO-B1 18.03 16.09 16.95
238.8150 -54.0406 17.1 -1 USNO-B1 16.88 16.01 16.40
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 16 in the list of sources is a candidate afterglow for 1057131_g71 with 3x3 stamp
ra=238.77833 (15:55:06.80) dec=-54.05294 (-54:03:10.6) +/- 1.1" mag=17.00+/-0.35
dist=34.8 REFID=55
*** The position of this source is inconsistent with the XRT position.
The position is 79.8 arc sec from the BAT position.
src: 16 distr. of nearby unmatched sources: 1 0 0 0 2
Found 5 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.7863 -54.0558 19.7 -1 USNO-B1 17.20 16.10 16.59
238.7782 -54.0548 6.6 -1 USNO-B1 99.99 19.37 99.99
238.7795 -54.0525 2.8 -1 USNO-B1 15.52 14.04 14.70 *
238.7734 -54.0551 13.0 -1 USNO-B1 19.88 18.81 19.29
238.7780 -54.0497 11.8 -1 USNO-B1 99.99 19.44 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 19 in the list of sources is a candidate afterglow for 1057131_g71 with 3x3 stamp
ra=238.80159 (15:55:12.38) dec=-54.03992 (-54:02:23.7) +/- 1.1" mag=18.07+/-0.35
dist=83.5 REFID=102
*** The position of this source is inconsistent with the XRT position.
The position is 85.9 arc sec from the BAT position.
src: 19 distr. of nearby unmatched sources: 0 0 0 0 0
Found 6 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.8073 -54.0416 13.5 -1 USNO-B1 19.48 18.93 19.17
238.8032 -54.0414 6.4 -1 USNO-B1 99.99 18.61 99.99
238.7989 -54.0417 8.6 -1 USNO-B1 19.87 19.48 19.65
238.7955 -54.0409 13.3 -1 USNO-B1 17.24 16.07 16.59
238.8026 -54.0393 3.1 -1 USNO-B1 15.97 15.01 15.44 *
238.8059 -54.0369 14.2 -1 USNO-B1 99.99 19.01 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 25 in the list of sources is a candidate afterglow for 1057131_g71 with 3x3 stamp
ra=238.77637 (15:55:06.33) dec=-54.04698 (-54:02:49.1) +/- 1.1" mag=16.54+/-0.35
dist=56.0 REFID=43
*** The position of this source is inconsistent with the XRT position.
The position is 94.8 arc sec from the BAT position.
src: 25 distr. of nearby unmatched sources: 1 1 0 0 2
Found 4 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.7843 -54.0484 17.5 -1 USNO-B1 20.14 19.47 19.77
238.7780 -54.0497 10.2 -1 USNO-B1 99.99 19.44 99.99
238.7755 -54.0464 2.7 -1 USNO-B1 14.60 13.14 13.79 *
238.7773 -54.0444 9.6 -1 USNO-B1 19.08 18.01 18.49
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 27 in the list of sources is a candidate afterglow for 1057131_g71 with 3x3 stamp
ra=238.77412 (15:55:05.79) dec=-54.04580 (-54:02:44.9) +/- 1.1" mag=17.30+/-0.35
dist=61.8 REFID=69
*** The position of this source is inconsistent with the XRT position.
The position is 101.2 arc sec from the BAT position.
src: 27 distr. of nearby unmatched sources: 1 1 0 0 0
Found 6 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.7780 -54.0497 16.1 -1 USNO-B1 99.99 19.44 99.99
238.7755 -54.0464 3.7 -1 USNO-B1 14.60 13.14 13.79 *
238.7773 -54.0444 8.5 -1 USNO-B1 19.08 18.01 18.49
238.7676 -54.0498 19.8 -1 USNO-B1 16.88 15.61 16.17
238.7753 -54.0407 18.4 -1 USNO-B1 17.94 16.69 17.25
238.7747 -54.0410 17.4 -1 USNO-B1 19.34 17.91 18.55
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 34 in the list of sources is a candidate afterglow for 1057131_g71 with 1x1 stamp
ra=238.76129 (15:55:02.71) dec=-54.07476 (-54:04:29.1) +/- 1.1" mag=17.92+/-0.35
dist=71.8 REFID=115
*** The position of this source is inconsistent with the XRT position.
The position is 115.2 arc sec from the BAT position.
src: 34 srclist_match has ID
src: 34 distr. of nearby unmatched sources: 0 0 0 0 1
Found 7 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.7658 -54.0703 18.8 -1 USNO-B1 17.80 16.83 17.26
238.7633 -54.0743 4.6 -1 USNO-B1 20.96 16.14 18.28
238.7631 -54.0746 3.9 -1 USNO-B1 19.80 17.43 18.48 *
238.7631 -54.0752 4.1 -1 USNO-B1 19.29 18.12 18.64
238.7620 -54.0747 1.5 -1 USNO-B1 16.75 15.42 16.01 *
238.7580 -54.0782 14.2 -1 USNO-B1 14.63 13.89 14.22
238.7554 -54.0739 12.8 -1 USNO-B1 17.09 14.26 15.51
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 45 in the list of sources is a candidate afterglow for 1057131_g71 with 1x1 stamp
ra=238.80565 (15:55:13.35) dec=-54.09911 (-54:05:56.8) +/- 1.1" mag=17.84+/-0.35
dist=141.8 REFID=123
*** The position of this source is inconsistent with the XRT position.
The position is 130.7 arc sec from the BAT position.
src: 45 srclist_match has ID
src: 45 distr. of nearby unmatched sources: 0 0 0 0 0
Found 10 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.8065 -54.0964 9.8 -1 USNO-B1 19.86 17.91 18.77
238.8096 -54.0969 11.5 -1 USNO-B1 99.99 19.43 99.99
238.7995 -54.0961 16.9 -1 USNO-B1 16.24 15.31 15.72
238.7998 -54.0966 15.3 -1 USNO-B1 18.21 15.55 16.73
238.7997 -54.0980 13.3 -1 USNO-B1 18.05 16.85 17.38
238.7982 -54.0981 16.0 -1 USNO-B1 19.79 18.99 19.35
238.8064 -54.0992 1.6 -1 USNO-B1 16.64 15.46 15.98 *
238.8072 -54.0996 3.7 -1 USNO-B1 18.15 17.45 17.76 *
238.8143 -54.1002 18.6 -1 USNO-B1 17.80 16.70 17.19
238.8062 -54.1002 4.0 -1 USNO-B1 99.99 17.77 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 49 in the list of sources is a candidate afterglow for 1057131_g71 with 3x3 stamp
ra=238.75109 (15:55:00.26) dec=-54.07744 (-54:04:38.8) +/- 1.1" mag=17.41+/-0.35
dist=94.5 REFID=101
*** The position of this source is inconsistent with the XRT position.
The position is 138.8 arc sec from the BAT position.
src: 49 distr. of nearby unmatched sources: 0 0 1 0 0
Found 9 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.7580 -54.0782 14.9 -1 USNO-B1 14.63 13.89 14.22
238.7554 -54.0739 15.8 -1 USNO-B1 17.09 14.26 15.51
238.7542 -54.0816 16.5 -1 USNO-B1 99.99 18.17 99.99
238.7491 -54.0722 19.3 -1 USNO-B1 19.85 18.23 18.95
238.7518 -54.0791 6.1 -1 USNO-B1 17.15 16.04 16.53
238.7510 -54.0785 3.7 -1 USNO-B1 15.45 14.17 14.74 *
238.7510 -54.0797 8.2 -1 USNO-B1 15.11 14.11 14.55
238.7458 -54.0772 11.3 -1 USNO-B1 19.65 18.16 18.82
238.7440 -54.0771 15.0 -1 USNO-B1 16.91 15.64 16.20
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 55 in the list of sources is a candidate afterglow for 1057131_g71 with 1x1 stamp
ra=238.85575 (15:55:25.38) dec=-54.09451 (-54:05:40.2) +/- 1.1" mag=17.12+/-0.35
dist=188.8 REFID=134
*** The position of this source is inconsistent with the XRT position.
The position is 146.3 arc sec from the BAT position.
src: 55 srclist_match has ID
src: 55 distr. of nearby unmatched sources: 1 0 0 0 0
Found 5 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.8525 -54.0912 13.6 -1 USNO-B1 20.25 19.08 19.60
238.8569 -54.0898 17.2 -1 USNO-B1 99.99 19.74 99.99
238.8557 -54.0950 1.8 -1 USNO-B1 14.72 13.38 13.97 *
238.8511 -54.0984 17.1 -1 USNO-B1 19.54 18.27 18.83
238.8559 -54.0964 6.7 -1 USNO-B1 17.70 16.23 16.88
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 57 in the list of sources is a candidate afterglow for 1057131_g71 with 1x1 stamp
ra=238.82956 (15:55:19.09) dec=-54.10384 (-54:06:13.8) +/- 1.1" mag=18.41+/-0.35
dist=177.9 REFID=186
*** The position of this source is inconsistent with the XRT position.
The position is 151.6 arc sec from the BAT position.
src: 57 distr. of nearby unmatched sources: 0 0 0 0 0
Found 7 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.8215 -54.1036 17.0 -1 USNO-B1 99.99 19.09 99.99
238.8366 -54.1014 17.2 -1 USNO-B1 21.09 19.84 20.40
238.8306 -54.1038 2.2 -1 USNO-B1 17.23 16.16 16.63 *
238.8279 -54.1047 4.7 -1 USNO-B1 19.64 18.69 19.11
238.8370 -54.1035 15.8 -1 USNO-B1 20.49 19.65 20.02
238.8332 -54.1048 8.3 -1 USNO-B1 17.03 16.05 16.49
238.8276 -54.1060 8.8 -1 USNO-B1 99.99 19.50 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 60 in the list of sources is a candidate afterglow for 1057131_g71 with 3x3 stamp
ra=238.88357 (15:55:32.06) dec=-54.05625 (-54:03:22.5) +/- 1.1" mag=13.86+/-0.35
dist=206.0 REFID=5
*** The position of this source is inconsistent with the XRT position.
The position is 153.2 arc sec from the BAT position.
src: 60 srclist_match has ID
src: 60 distr. of nearby unmatched sources: 2 0 0 0 0
Found 9 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.8757 -54.0581 17.9 -1 USNO-B1 20.34 19.09 19.64
238.8784 -54.0552 11.6 -1 USNO-B1 99.99 18.24 99.99
238.8775 -54.0535 16.3 -1 USNO-B1 19.60 18.33 18.89
238.8827 -54.0592 10.7 -1 USNO-B1 19.13 17.17 18.04
238.8836 -54.0555 2.5 -1 USNO-B1 18.90 11.28 14.66 *
238.8841 -54.0562 1.1 -1 USNO-B1 13.62 11.14 12.24 *
238.8847 -54.0529 12.2 -1 USNO-B1 99.99 18.77 99.99
238.8872 -54.0549 9.1 -1 USNO-B1 99.99 18.80 99.99
238.8917 -54.0566 17.2 -1 USNO-B1 18.95 17.82 18.32
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 67 in the list of sources is a candidate afterglow for 1057131_g71 with 3x3 stamp
ra=238.87731 (15:55:30.55) dec=-54.08646 (-54:05:11.3) +/- 1.1" mag=17.28+/-0.35
dist=212.1 REFID=77
*** The position of this source is inconsistent with the XRT position.
The position is 161.8 arc sec from the BAT position.
src: 67 srclist_match has ID
src: 67 distr. of nearby unmatched sources: 0 0 0 0 0
Found 10 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.8681 -54.0854 19.7 -1 USNO-B1 16.62 15.66 16.09
238.8735 -54.0821 17.7 -1 USNO-B1 18.80 17.64 18.16
238.8688 -54.0882 19.1 -1 USNO-B1 20.20 18.12 19.04
238.8745 -54.0841 10.4 -1 USNO-B1 99.99 18.91 99.99
238.8782 -54.0864 1.9 -1 USNO-B1 16.24 15.21 15.66 *
238.8798 -54.0853 6.7 -1 USNO-B1 99.99 15.16 99.99
238.8801 -54.0851 7.5 -1 USNO-B1 16.24 15.43 15.79
238.8754 -54.0908 16.2 -1 USNO-B1 20.28 18.71 19.41
238.8851 -54.0877 16.9 -1 USNO-B1 18.34 17.68 17.97
238.8840 -54.0901 19.1 -1 USNO-B1 18.34 17.24 17.73
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 85 in the list of sources is a candidate afterglow for 1057131_g71 with 1x1 stamp
ra=238.77786 (15:55:06.69) dec=-54.10794 (-54:06:28.6) +/- 1.1" mag=18.48+/-0.35
dist=168.7 REFID=153
*** The position of this source is inconsistent with the XRT position.
The position is 177.1 arc sec from the BAT position.
src: 85 srclist_match has ID
src: 85 distr. of nearby unmatched sources: 0 0 0 0 0
Found 5 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.7745 -54.1038 16.6 -1 USNO-B1 18.53 17.42 17.91
238.7834 -54.1083 11.8 -1 USNO-B1 18.27 16.38 17.22
238.7784 -54.1083 1.7 -1 USNO-B1 16.96 15.71 16.26 *
238.7784 -54.1087 3.0 -1 USNO-B1 99.99 18.47 99.99 *
238.7773 -54.1120 14.7 -1 USNO-B1 99.99 18.34 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 88 in the list of sources is a candidate afterglow for 1057131_g71 with 1x1 stamp
ra=238.80944 (15:55:14.26) dec=-54.01296 (-54:00:46.6) +/- 1.1" mag=18.05+/-0.35
dist=180.9 REFID=148
*** The position of this source is inconsistent with the XRT position.
The position is 180.2 arc sec from the BAT position.
src: 88 distr. of nearby unmatched sources: 0 0 0 0 0
Found 8 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.8053 -54.0173 18.0 -1 USNO-B1 19.02 17.45 18.14
238.8136 -54.0169 16.5 -1 USNO-B1 19.35 18.56 18.91
238.8039 -54.0171 19.0 -1 USNO-B1 99.99 18.87 99.99
238.8072 -54.0162 12.8 -1 USNO-B1 16.99 15.64 16.24
238.8094 -54.0136 2.2 -1 USNO-B1 16.44 15.01 15.64 *
238.8058 -54.0103 12.2 -1 USNO-B1 19.13 18.51 18.79
238.8054 -54.0099 13.9 -1 USNO-B1 20.70 17.34 18.83
238.8087 -54.0075 19.7 -1 USNO-B1 18.56 17.86 18.17
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 103 in the list of sources is a candidate afterglow for 1057131_g71 with 1x1 stamp
ra=238.90358 (15:55:36.86) dec=-54.07442 (-54:04:27.9) +/- 1.1" mag=17.86+/-0.35
dist=251.8 REFID=147
*** The position of this source is inconsistent with the XRT position.
The position is 197.8 arc sec from the BAT position.
src: 103 srclist_match has ID
src: 103 distr. of nearby unmatched sources: 0 0 0 0 0
Found 14 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.8956 -54.0728 17.9 -1 USNO-B1 19.65 18.77 19.16
238.8950 -54.0760 18.9 -1 USNO-B1 20.06 18.55 19.22
238.8985 -54.0699 19.5 -1 USNO-B1 18.91 18.00 18.40
238.9024 -54.0695 17.9 -1 USNO-B1 99.99 18.62 99.99
238.9006 -54.0796 19.7 -1 USNO-B1 19.34 18.42 18.83
238.9028 -54.0767 8.5 -1 USNO-B1 99.99 19.20 99.99
238.9044 -54.0727 6.4 -1 USNO-B1 99.99 17.59 99.99
238.9043 -54.0742 1.8 -1 USNO-B1 17.00 15.87 16.37 *
238.9075 -54.0729 10.0 -1 USNO-B1 16.32 15.16 15.67
238.9066 -54.0774 12.6 -1 USNO-B1 20.39 18.52 19.35
238.9083 -54.0703 17.9 -1 USNO-B1 99.99 19.32 99.99
238.9069 -54.0772 12.2 -1 USNO-B1 19.85 18.41 19.05
238.9099 -54.0722 15.5 -1 USNO-B1 18.68 17.61 18.09
238.9103 -54.0723 16.2 -1 USNO-B1 18.59 17.53 18.00
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 105 in the list of sources is a candidate afterglow for 1057131_g71 with 3x3 stamp
ra=238.80687 (15:55:13.65) dec=-54.11793 (-54:07:04.6) +/- 1.1" mag=16.27+/-0.35
dist=208.2 REFID=34
*** The position of this source is inconsistent with the XRT position.
The position is 198.1 arc sec from the BAT position.
src: 105 srclist_match has ID
src: 105 distr. of nearby unmatched sources: 1 0 0 0 0
Found 7 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.8052 -54.1132 17.4 -1 USNO-B1 19.81 19.65 19.72
238.8116 -54.1175 10.2 -1 USNO-B1 19.70 18.14 18.83
238.8020 -54.1174 10.4 -1 USNO-B1 15.86 14.82 15.28
238.8072 -54.1182 1.2 -1 USNO-B1 15.36 13.97 14.59 *
238.8091 -54.1209 11.6 -1 USNO-B1 99.99 13.78 99.99
238.8089 -54.1211 12.1 -1 USNO-B1 14.57 13.38 13.91
238.8074 -54.1219 14.2 -1 USNO-B1 16.53 99.99 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 1 entries in star catalog(s) within 10" of the XRT position.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
238.7890 -54.0616 5.4 -1 USNO-B1 18.27 17.10 17.62
The closest star is 5.39" away.
List UVOT sources within 10" of the XRT position:
There are no candidates inside BAT error circle, but outside XRT error circle.
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.22, XRT distances < 5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
srclist paragraph message for exposure 1 of trigger 1057131
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: damaged image (negative pixel value)
SRCLIST PROBLEM: srclist filled telemetry buffer
See notes for more details.
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
------ Start for Possible Stand-alone Circular ----
In response to GRB210621 (Swift/BAT trigger 1057131) at 17:04:36 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 44 seconds after the BAT trigger. No credible afterglow candidate has
been found in the initial data products. The 2.7'x2.7' sub-image processing
FAILED because of damaged image (negative pixel value). The 8'x8' region for
the list of sources generated on-board covers 100% of the XRT error circle. The
list of sources is typically complete to about 18 mag. No correction has been
made for the large, but uncertain, extinction expected.
------- notes for trigger 1057131 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 210621d17h27m37s708114usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1057131
-expid=645987948 -meonly -msg_srclist
Results from standard processing of UVOT TDRSS data for this trigger should be
available at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/1057131/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
Unreliable extinction found for bat position. Unreliable extinction found for
xrt position. The Genie image appears to be DAMAGED with a min. value of
-27.515179.
XRT position found for srclist. XRT position found for Genie image. BAT
position found.
UVOT exposure began at MET 645987948.8619 or about 2021:172:17:05:43 UT
Found 2229 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 37% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 31 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 19.22 mag.
Found 38 source(s) in Genie image catalog. Found 9 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.39 mag. Found 427 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
40% of the Genie image region. The number of srclist sources filled the
available telemetry. The weakest source detected was 18.83 mag. The closest
srclist source has ra= 238.7817 dec= -54.0694 mag=17.98 sep=30.72". The closest
Genie source has ra= 238.7817 dec= -54.0693 mag=17.67 sep=30.24".
All AG candidates sorted by magnitude for the current finding chart.
(U/V/White SRCLIST mags < 17.5/17.5/18.5 are reliable. Mag > 18.5/18.5/19.5 are
not. Others are uncertain.)
(U/V/White Genie image mags < 18.0/18.0/19.0 are reliable. Mag > 19.0/19.0/20.0
are not. Others are uncertain.)
(Magnitudes followed by * have been corrected for exposure.)
---MET--- -dt- filter ---RA-- ---DEC--- -MAG/Limit Dist(") Source Asp.Corr?
645987948 44 WHITE srclist found no candidates.
645987948 44 WHITE image found no candidates.
List afterglow candidates for other finding charts.
645988161 257 U srclist found no candidates.
645988161 257 U image found no candidates.
645988765 861 WHITE srclist found no candidates.
645988765 861 ? image data are not available.
------- Tokens for Quick GCN -------