srclist overlap message for exposure 1 of trigger 1072706
uvot_overlap.pl vrs. 2010-12-20b fem started at 210910d10h38m49s886055usUT
The observation of trigger 1072706 started 2021-09-10T10:13:45.6
Examining file ./1072706_g109_uvot_sky_srclist.fits
The exposure ID is 652961625
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (238.7587,-54.0555) with a roll angle of 289.2
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 (238.7730,-54.0550) with a radius of 3.000 arc min
This is 0.504 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 (238.7878,-54.0619) with a radius of 0.032 arc min
This is 1.095 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 1072706
find_uvot_ag.pl vrs. 2020-10-30 fem started at 210910d10h38m56s425657usUT
Observation start time is 2021-09-10T10:13:45.6
Examining file ./1072706_g109_uvot_catalog_srclist.fits
The exposure ID is 652961625
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 1072706_g109
*** 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 1072706_g109 has mag 19.02
Aspect correction adds -0.00175 degrees (-0.419 sec of time = -3.69 arc sec) to RA
Aspect correction adds 0.00016 degrees ( 0.57 arcsec) to Dec
Total aspect correction is 3.73 arcsec
Star catalogs centered at 238.7589 , -54.0547 with radius 6.06 arc min.
n_usno: 1857 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: 238.76109 (15:55:02.66) -54.00243 (-54:00:08.7) 9.25 USNO-V
bright star 3: 238.85814 (15:55:25.95) -54.07434 (-54:04:27.6) 11.40 USNO-V
bright star 4: 238.65697 (15:54:37.67) -54.02573 (-54:01:32.6) 9.59 USNO-V
bright star 5: 238.67187 (15:54:41.25) -53.97750 (-53:58:39.0) 11.80 USNO-V
bright star 6: 238.71014 (15:54:50.43) -53.96361 (-53:57:49.0) 10.29 USNO-V
Mean distance difference (CAT_DELTA) for 155 matched entries is 0.748" for 1072706_g109
Mean and std. dev of mag. difference (MAG_DELTA) are 1.925 and 0.704 for 1072706_g109
Found 41 entries without IDs and 16 entries that are acceptable afterglow candidates for 1072706_g109.
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.
19 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=238.7730 (15:55:05.52) DEC=-54.0550 (-54:03:18.0)
XRT distances are from RA=238.7878 (15:55:09.07) DEC=-54.0619 (-54:03:42.9)
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1072706_g109 with 3x3 stamp
ra=238.77874 (15:55:06.90) dec=-54.05281 (-54:03:10.1) +/- 1.1" mag=17.26+/-0.35
dist=38.0 REFID=48
*** The position of this source is inconsistent with the XRT position.
The position is 14.5 arc sec from the BAT position.
src: 1 srclist_match has ID
src: 1 distr. of nearby unmatched sources: 0 0 0 0 2
Found 6 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
238.7734 -54.0551 14.0 -1 USNO-B1 19.88 18.81 19.29
238.7782 -54.0548 7.1 -1 USNO-B1 99.99 19.37 99.99
238.7795 -54.0525 1.9 -1 USNO-B1 15.52 14.04 14.70 *
238.7780 -54.0497 11.5 -1 USNO-B1 99.99 19.44 99.99
238.7863 -54.0558 19.3 -1 USNO-B1 17.20 16.10 16.59
238.7843 -54.0484 19.7 -1 USNO-B1 20.14 19.47 19.77
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 5 in the list of sources is a candidate afterglow for 1072706_g109 with 3x3 stamp
ra=238.77625 (15:55:06.30) dec=-54.04688 (-54:02:48.8) +/- 1.1" mag=16.98+/-0.35
dist=59.4 REFID=42
*** The position of this source is inconsistent with the XRT position.
The position is 30.0 arc sec from the BAT position.
src: 5 distr. of nearby unmatched sources: 1 1 0 0 0
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
238.7780 -54.0497 10.6 -1 USNO-B1 99.99 19.44 99.99
238.7755 -54.0464 2.3 -1 USNO-B1 14.60 13.14 13.79 *
238.7773 -54.0444 9.3 -1 USNO-B1 19.08 18.01 18.49
238.7843 -54.0484 17.8 -1 USNO-B1 20.14 19.47 19.77
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 6 in the list of sources is a candidate afterglow for 1072706_g109 with 3x3 stamp
ra=238.77400 (15:55:05.76) dec=-54.04589 (-54:02:45.2) +/- 1.1" mag=17.32+/-0.35
dist=64.7 REFID=70
*** The position of this source is inconsistent with the XRT position.
The position is 32.9 arc sec from the BAT position.
src: 6 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
238.7676 -54.0498 19.4 -1 USNO-B1 16.88 15.61 16.17
238.7780 -54.0497 16.0 -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 8.9 -1 USNO-B1 19.08 18.01 18.49
238.7747 -54.0410 17.8 -1 USNO-B1 19.34 17.91 18.55
238.7753 -54.0407 18.7 -1 USNO-B1 17.94 16.69 17.25
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 14 in the list of sources is a candidate afterglow for 1072706_g109 with 3x3 stamp
ra=238.76130 (15:55:02.71) dec=-54.07477 (-54:04:29.2) +/- 1.1" mag=18.14+/-0.35
dist=72.6 REFID=100
*** The position of this source is inconsistent with the XRT position.
The position is 75.3 arc sec from the BAT position.
src: 14 srclist_match has ID
src: 14 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
238.7658 -54.0703 18.8 -1 USNO-B1 17.80 16.83 17.26
238.7554 -54.0739 12.8 -1 USNO-B1 17.09 14.26 15.51
238.7633 -54.0743 4.6 -1 USNO-B1 20.96 16.14 18.28
238.7631 -54.0746 3.8 -1 USNO-B1 19.80 17.43 18.48 *
238.7620 -54.0747 1.5 -1 USNO-B1 16.75 15.42 16.01 *
238.7631 -54.0752 4.1 -1 USNO-B1 19.29 18.12 18.64
238.7580 -54.0782 14.2 -1 USNO-B1 14.63 13.89 14.22
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 17 in the list of sources is a candidate afterglow for 1072706_g109 with 3x3 stamp
ra=238.80207 (15:55:12.50) dec=-54.03993 (-54:02:23.7) +/- 1.1" mag=18.19+/-0.35
dist=84.7 REFID=89
*** The position of this source is inconsistent with the XRT position.
The position is 82.0 arc sec from the BAT position.
src: 17 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
238.7955 -54.0409 14.3 -1 USNO-B1 17.24 16.07 16.59
238.7989 -54.0417 9.3 -1 USNO-B1 19.87 19.48 19.65
238.8032 -54.0414 5.9 -1 USNO-B1 99.99 18.61 99.99
238.8026 -54.0393 2.5 -1 USNO-B1 15.97 15.01 15.44 *
238.8073 -54.0416 12.6 -1 USNO-B1 19.48 18.93 19.17
238.8059 -54.0369 13.6 -1 USNO-B1 99.99 19.01 99.99
238.8115 -54.0395 20.0 -1 USNO-B1 18.36 17.49 17.88
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 31 in the list of sources is a candidate afterglow for 1072706_g109 with 1x1 stamp
ra=238.74974 (15:54:59.94) dec=-54.07967 (-54:04:46.8) +/- 1.1" mag=18.48+/-0.35
dist=102.7 REFID=168
*** The position of this source is inconsistent with the XRT position.
The position is 101.5 arc sec from the BAT position.
src: 31 distr. of nearby unmatched sources: 1 0 0 0 0
Found 11 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 18.2 -1 USNO-B1 14.63 13.89 14.22
238.7458 -54.0772 12.3 -1 USNO-B1 19.65 18.16 18.82
238.7440 -54.0771 15.1 -1 USNO-B1 16.91 15.64 16.20
238.7510 -54.0785 5.1 -1 USNO-B1 15.45 14.17 14.74
238.7518 -54.0791 4.8 -1 USNO-B1 17.15 16.04 16.53
238.7510 -54.0797 2.8 -1 USNO-B1 15.11 14.11 14.55 *
238.7542 -54.0816 11.8 -1 USNO-B1 99.99 18.17 99.99
238.7535 -54.0831 14.5 -1 USNO-B1 17.31 14.81 15.92
238.7564 -54.0836 20.0 -1 USNO-B1 18.75 16.70 17.61
238.7447 -54.0836 17.6 -1 USNO-B1 17.95 16.60 17.20
238.7491 -54.0850 19.2 -1 USNO-B1 99.99 18.88 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 33 in the list of sources is a candidate afterglow for 1072706_g109 with 1x1 stamp
ra=238.81877 (15:55:16.50) dec=-54.04487 (-54:02:41.5) +/- 1.1" mag=18.41+/-0.35
dist=89.7 REFID=141
*** The position of this source is inconsistent with the XRT position.
The position is 103.4 arc sec from the BAT position.
src: 33 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
238.8107 -54.0461 17.5 -1 USNO-B1 18.98 17.61 18.22
238.8150 -54.0447 8.1 -1 USNO-B1 99.99 19.33 99.99
238.8151 -54.0437 8.7 -1 USNO-B1 19.60 18.76 19.13
238.8150 -54.0406 17.3 -1 USNO-B1 16.88 16.01 16.40
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 *
238.8238 -54.0484 16.4 -1 USNO-B1 20.52 18.87 19.60
238.8235 -54.0425 13.2 -1 USNO-B1 18.03 16.09 16.95
238.8256 -54.0434 15.4 -1 USNO-B1 15.28 13.68 14.39
238.8269 -54.0459 17.5 -1 USNO-B1 18.63 17.02 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 34 in the list of sources is a candidate afterglow for 1072706_g109 with 3x3 stamp
ra=238.81170 (15:55:14.81) dec=-54.03710 (-54:02:13.6) +/- 1.1" mag=15.02+/-0.35
dist=102.7 REFID=6
*** The position of this source is inconsistent with the XRT position.
The position is 104.1 arc sec from the BAT position.
src: 34 srclist_match has ID
src: 34 distr. of nearby unmatched sources: 1 0 0 0 1
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
238.8073 -54.0416 18.6 -1 USNO-B1 19.48 18.93 19.17
238.8059 -54.0369 12.2 -1 USNO-B1 99.99 19.01 99.99
238.8115 -54.0395 8.6 -1 USNO-B1 18.36 17.49 17.88
238.8117 -54.0375 1.6 -1 USNO-B1 13.64 12.98 13.27 *
238.8150 -54.0406 14.4 -1 USNO-B1 16.88 16.01 16.40
238.8107 -54.0341 11.0 -1 USNO-B1 99.99 17.28 99.99
238.8153 -54.0367 7.8 -1 USNO-B1 16.96 16.46 16.68
238.8187 -54.0373 14.8 -1 USNO-B1 18.65 18.05 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 60 in the list of sources is a candidate afterglow for 1072706_g109 with 1x1 stamp
ra=238.75478 (15:55:01.15) dec=-54.09399 (-54:05:38.4) +/- 1.1" mag=16.89+/-0.35
dist=134.9 REFID=123
*** The position of this source is inconsistent with the XRT position.
The position is 145.5 arc sec from the BAT position.
src: 60 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
238.7498 -54.0893 19.8 -1 USNO-B1 16.71 15.69 16.14
238.7467 -54.0918 18.9 -1 USNO-B1 20.45 18.42 19.32
238.7481 -54.0941 14.1 -1 USNO-B1 19.64 18.62 19.07
238.7544 -54.0948 3.2 -1 USNO-B1 12.86 12.38 12.59 *
238.7577 -54.0961 9.8 -1 USNO-B1 99.99 18.11 99.99
238.7538 -54.0985 16.4 -1 USNO-B1 99.99 19.53 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 64 in the list of sources is a candidate afterglow for 1072706_g109 with 1x1 stamp
ra=238.71316 (15:54:51.16) dec=-54.07750 (-54:04:39.0) +/- 1.1" mag=18.10+/-0.35
dist=167.3 REFID=116
*** The position of this source is inconsistent with the XRT position.
The position is 150.1 arc sec from the BAT position.
src: 64 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
238.7118 -54.0723 19.1 -1 USNO-B1 19.68 18.87 19.23
238.7125 -54.0781 2.6 -1 USNO-B1 99.99 14.59 99.99 *
238.7120 -54.0782 3.4 -1 USNO-B1 15.69 14.78 15.18 *
238.7145 -54.0818 15.7 -1 USNO-B1 20.24 18.76 19.41
238.7122 -54.0807 11.6 -1 USNO-B1 99.99 19.02 99.99
238.7074 -54.0792 13.7 -1 USNO-B1 15.44 13.70 14.47
238.7063 -54.0809 19.1 -1 USNO-B1 18.14 16.41 17.18
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 72 in the list of sources is a candidate afterglow for 1072706_g109 with 1x1 stamp
ra=238.84751 (15:55:23.40) dec=-54.06614 (-54:03:58.1) +/- 1.1" mag=18.13+/-0.35
dist=127.1 REFID=114
*** The position of this source is inconsistent with the XRT position.
The position is 162.5 arc sec from the BAT position.
src: 72 srclist_match has ID
src: 72 distr. of nearby unmatched sources: 0 0 1 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
238.8399 -54.0656 16.1 -1 USNO-B1 99.99 19.02 99.99
238.8421 -54.0651 12.1 -1 USNO-B1 19.54 18.00 18.68
238.8453 -54.0683 9.1 -1 USNO-B1 19.47 18.55 18.96
238.8456 -54.0702 15.2 -1 USNO-B1 19.24 18.55 18.85
238.8478 -54.0664 1.2 -1 USNO-B1 16.94 15.84 16.33 *
238.8486 -54.0684 8.6 -1 USNO-B1 16.53 15.32 15.86
238.8519 -54.0652 9.9 -1 USNO-B1 17.48 16.07 16.70
238.8528 -54.0647 12.3 -1 USNO-B1 17.21 15.88 16.47
238.8518 -54.0677 10.8 -1 USNO-B1 19.09 17.89 18.42
238.8545 -54.0695 19.1 -1 USNO-B1 20.27 18.89 19.50
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 77 in the list of sources is a candidate afterglow for 1072706_g109 with 1x1 stamp
ra=238.84851 (15:55:23.64) dec=-54.06906 (-54:04:08.6) +/- 1.1" mag=18.62+/-0.35
dist=130.8 REFID=179
*** The position of this source is inconsistent with the XRT position.
The position is 167.4 arc sec from the BAT position.
src: 77 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
238.8421 -54.0651 19.7 -1 USNO-B1 19.54 18.00 18.68
238.8406 -54.0707 17.8 -1 USNO-B1 16.81 14.95 15.78
238.8453 -54.0683 7.3 -1 USNO-B1 19.47 18.55 18.96
238.8456 -54.0702 7.5 -1 USNO-B1 19.24 18.55 18.85
238.8478 -54.0664 9.6 -1 USNO-B1 16.94 15.84 16.33
238.8486 -54.0684 2.3 -1 USNO-B1 16.53 15.32 15.86 *
238.8519 -54.0652 15.7 -1 USNO-B1 17.48 16.07 16.70
238.8528 -54.0647 18.0 -1 USNO-B1 17.21 15.88 16.47
238.8518 -54.0677 8.5 -1 USNO-B1 19.09 17.89 18.42
238.8545 -54.0695 12.8 -1 USNO-B1 20.27 18.89 19.50
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 83 in the list of sources is a candidate afterglow for 1072706_g109 with 1x1 stamp
ra=238.80974 (15:55:14.34) dec=-54.01287 (-54:00:46.3) +/- 1.1" mag=18.35+/-0.35
dist=182.6 REFID=125
*** The position of this source is inconsistent with the XRT position.
The position is 170.4 arc sec from the BAT position.
src: 83 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
238.8039 -54.0171 19.6 -1 USNO-B1 99.99 18.87 99.99
238.8053 -54.0173 18.6 -1 USNO-B1 19.02 17.45 18.14
238.8072 -54.0162 13.4 -1 USNO-B1 16.99 15.64 16.24
238.8136 -54.0169 16.5 -1 USNO-B1 19.35 18.56 18.91
238.8094 -54.0136 2.6 -1 USNO-B1 16.44 15.01 15.64 *
238.8058 -54.0103 12.4 -1 USNO-B1 19.13 18.51 18.79
238.8054 -54.0099 14.0 -1 USNO-B1 20.70 17.34 18.83
238.8087 -54.0075 19.4 -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 85 in the list of sources is a candidate afterglow for 1072706_g109 with 1x1 stamp
ra=238.80544 (15:55:13.31) dec=-54.09906 (-54:05:56.6) +/- 1.1" mag=18.10+/-0.35
dist=138.8 REFID=115
*** The position of this source is inconsistent with the XRT position.
The position is 172.8 arc sec from the BAT position.
src: 85 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
238.7995 -54.0961 16.5 -1 USNO-B1 16.24 15.31 15.72
238.7998 -54.0966 14.9 -1 USNO-B1 18.21 15.55 16.73
238.7982 -54.0981 15.6 -1 USNO-B1 19.79 18.99 19.35
238.7997 -54.0980 12.8 -1 USNO-B1 18.05 16.85 17.38
238.8065 -54.0964 9.7 -1 USNO-B1 19.86 17.91 18.77
238.8096 -54.0969 11.7 -1 USNO-B1 99.99 19.43 99.99
238.8064 -54.0992 2.1 -1 USNO-B1 16.64 15.46 15.98 *
238.8072 -54.0996 4.1 -1 USNO-B1 18.15 17.45 17.76
238.8062 -54.1002 4.4 -1 USNO-B1 99.99 17.77 99.99
238.8143 -54.1002 19.0 -1 USNO-B1 17.80 16.70 17.19
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 100 in the list of sources is a candidate afterglow for 1072706_g109 with 1x1 stamp
ra=238.77759 (15:55:06.62) dec=-54.10794 (-54:06:28.6) +/- 1.1" mag=18.55+/-0.35
dist=167.1 REFID=156
*** The position of this source is inconsistent with the XRT position.
The position is 190.8 arc sec from the BAT position.
src: 100 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 16.4 -1 USNO-B1 18.53 17.42 17.91
238.7784 -54.1083 2.2 -1 USNO-B1 16.96 15.71 16.26 *
238.7784 -54.1087 3.2 -1 USNO-B1 99.99 18.47 99.99 *
238.7834 -54.1083 12.4 -1 USNO-B1 18.27 16.38 17.22
238.7773 -54.1120 14.6 -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 101 in the list of sources is a candidate afterglow for 1072706_g109 with 1x1 stamp
ra=238.73083 (15:54:55.40) dec=-54.10198 (-54:06:07.1) +/- 1.1" mag=18.18+/-0.35
dist=187.8 REFID=137
*** The position of this source is inconsistent with the XRT position.
The position is 191.1 arc sec from the BAT position.
src: 101 srclist_match has ID
src: 101 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
238.7329 -54.0986 13.0 -1 USNO-B1 19.77 18.88 19.28
238.7329 -54.1006 6.7 -1 USNO-B1 20.28 19.29 19.73
238.7327 -54.1017 4.1 -1 USNO-B1 99.99 18.84 99.99
238.7236 -54.0997 17.4 -1 USNO-B1 20.17 18.36 19.16
238.7392 -54.1030 18.0 -1 USNO-B1 14.80 14.11 14.42
238.7314 -54.1020 1.3 -1 USNO-B1 17.23 15.99 16.54 *
238.7286 -54.1041 8.9 -1 USNO-B1 99.99 18.53 99.99
238.7239 -54.1056 19.5 -1 USNO-B1 18.92 17.90 18.35
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 2 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 2.8 -1 USNO-B1 18.27 17.10 17.62
238.7918 -54.0617 8.5 -1 USNO-B1 20.30 18.89 19.52
The closest star is 2.75" 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 1072706
SRCLIST PROBLEM: srclist filled telemetry buffer
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
1 source(s) near the XRT position were rejected as afterglow candidate(s). See
notes for details.
------ Start for Possible Stand-alone Circular ----
In response to GRB210910 (Swift/BAT trigger 1072706) at 10:11:55 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 82 seconds after the BAT trigger. No credible afterglow candidate has
been found in the initial data products. The 2.7'x2.7' sub-image covers 100% of
the XRT error circle. The typical 3-sigma upper limit has been about 19.6 mag.
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 1072706 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 210910d10h39m03s545400usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1072706
-expid=652961625 -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/1072706/
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. XRT position found for srclist. XRT position found for Genie
image. BAT position found.
UVOT exposure began at MET 652961625.64932 or about 2021:253:10:13:40 UT
Found 1853 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 35% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 41 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 52 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. Found 7 Genie image source(s) without IDs. There are 0 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.28 mag. Found 400 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 38% of the Genie image region.
Genie image analysis:
Found 112604.0 counts in the large background region of 5663.0 pixels or a rate
of 19.884 counts/pixel in a radius of 45.0 arcsec. Based on this background,
the typical 5-sigma UL at a random point in the Genie image is 19.55 mag. for a
4-arcsec aperture.
Found 4148.9 counts in the XRT position region of 196.0 pixels or a rate of
21.168 counts/pixel in a radius of 8.0 arcsec. The net count rate (using large
background region) at the XRT position is 1.677 +/- 0.436 (1-sigma) cps or
19.04 mag and a range from 18.79 to 19.37 mag. The 3-sigma UL at the XRT
position is 2.986 cps or 18.42 mag. The number of srclist sources filled the
available telemetry. The weakest source detected was 19.02 mag. The closest
srclist source has ra= 238.7863 dec= -54.0559 mag=18.58 sep=21.82".
Found 1 Genie source(s) within 10.0" of the XRT position. The brightest such
source has ra= 238.7889 dec= -54.0615 mag=19.06 sep=2.69". The closest Genie
source has ra= 238.7889 dec= -54.0615 mag=19.06 sep=2.69".
This paragraph is only useful if the XRT position is grossly wrong. There are 1
candidate(s) in the image data with mag < 19.72 inside the BAT error region,
but outside the XRT error region. The brightest such source is at RA=238.77415
(15:55:05.80), DEC=-54.04573 (-54:02:44.6) (J2000). It has a mag of 16.90. It
is 33.4" from the BAT position.
****THIS SOURCE IS OUTSIDE XRT ERROR CIRCLE--USE WITH CAUTION***
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 82 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 15:55:05.80 = 238.77415
DEC(J2000) = -54:02:44.6 = -54.04573
with a 90%-confidence error radius of about 0.61 arc sec. The estimated
magnitude is 16.90 with a 1-sigma error of about 0.14. No correction has been
made for the large, but uncertain, extinction expected.
Report rejected UVOT sources within 10 arcsec XRT position.
Such sources are usually NOT the afterglow.
****THIS SOURCE NEAR XRT POSITION WAS REJECTED--USE WITH CAUTION****
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 82 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 15:55:09.33 = 238.78889
DEC(J2000) = -54:03:41.5 = -54.06154
with a 90%-confidence error radius of about 0.66 arc sec. This position is 2.69
arc sec. from the center of the XRT error circle. The estimated magnitude is
19.06 with a 1-sigma error of about 0.16. No correction has been made for the
large, but uncertain, extinction expected.
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?
652961625 81 WHITE srclist found no candidates.
652961625 81 WHITE image found no candidates.
List afterglow candidates for other finding charts.
652961837 293 U srclist found no candidates.
652961837 293 U image found no candidates.
652962417 873 WHITE srclist found no candidates.
652962417 873 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: -54.06192
GRB_ERROR: 5
GRB_RA: 238.78779
IMAGE_START_TIME: 10:13:40
MAGNITUDE: 18.4
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT