srclist overlap message for exposure 1 of trigger 1121751
uvot_overlap.pl vrs. 2010-12-20b fem started at 220826d14h57m02s603901usUT
The observation of trigger 1121751 started 2022-08-26T11:57:22.2
Examining file ./1121751_g120_uvot_sky_srclist.fits
The exposure ID is 683207842
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (206.4223,-44.0401) with a roll angle of 305.9
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 (206.4310,-44.0440) with a radius of 3.000 arc min
This is 0.441 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 (206.4108,-44.0392) with a radius of 0.037 arc min
This is 0.501 arc min from the center of the uvot region
The area of the XRT error circle is 0.004 sq. arc min
The UVOT/XRT overlap is 0.004 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1121751
find_uvot_ag.pl vrs. 2020-10-30 fem started at 220826d14h57m05s952908usUT
Observation start time is 2022-08-26T11:57:22.2
Examining file ./1121751_g120_uvot_catalog_srclist.fits
The exposure ID is 683207842
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 160 detected source(s) for 1121751_g120
Aspect correction adds -0.00261 degrees (-0.626 sec of time = -6.75 arc sec) to RA
Aspect correction adds 0.00041 degrees ( 1.48 arcsec) to Dec
Total aspect correction is 6.90 arcsec
Star catalogs centered at 206.4201 , -44.0371 with radius 6.39 arc min.
n_usno: 1318 n_gsc: 0
*** WARNING -- bright star catalog has 3 entries brighter than 12 mag
The brightest has mag 10.46732
RA DEC Mag Color
bright star 0: 206.30759 (13:45:13.82) -43.98873 (-43:59:19.4) 10.99 USNO-V
bright star 1: 206.50192 (13:46:00.46) -44.11798 (-44:07:04.7) 11.63 USNO-V
bright star 2: 206.56170 (13:46:14.81) -44.05844 (-44:03:30.4) 10.47 USNO-V
Mean distance difference (CAT_DELTA) for 138 matched entries is 0.813" for 1121751_g120
Mean and std. dev of mag. difference (MAG_DELTA) are 1.743 and 0.776 for 1121751_g120
Found 29 entries without IDs and 24 entries that are acceptable afterglow candidates for 1121751_g120.
Acceptable entries have no ID, XRT distances < 5.5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
0 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=206.4310 (13:45:43.44) DEC=-44.0440 (-44:02:38.4)
XRT distances are from RA=206.4108 (13:45:38.59) DEC=-44.0392 (-44:02:21.0)
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1121751_g120 with 3x3 stamp
ra=206.41045 (13:45:38.51) dec=-44.03867 (-44:02:19.2) +/- 1.1" mag=18.73+/-0.35
dist=2.0 REFID=72
src: 0 distr. of nearby unmatched sources: 1 0 0 0 0
Found 3 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
206.4139 -44.0402 10.5 -1 USNO-B1 18.68 18.33 18.49
206.4128 -44.0338 18.6 -1 USNO-B1 20.90 19.99 20.40
206.4113 -44.0370 6.5 -1 USNO-B1 19.77 19.11 19.40
##### This source remains a candidate #####
It has no entries within 4" or brighter than 13 mag
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1121751_g120 with 1x1 stamp
ra=206.41086 (13:45:38.61) dec=-44.03765 (-44:02:15.5) +/- 1.1" mag=19.09+/-0.35
dist=5.5 REFID=148
src: 1 distr. of nearby unmatched sources: 1 0 0 0 0
Found 3 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
206.4139 -44.0402 12.2 -1 USNO-B1 18.68 18.33 18.49
206.4128 -44.0338 14.8 -1 USNO-B1 20.90 19.99 20.40
206.4113 -44.0370 2.7 -1 USNO-B1 19.77 19.11 19.40 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 5 in the list of sources is a candidate afterglow for 1121751_g120 with 3x3 stamp
ra=206.42390 (13:45:41.74) dec=-44.02814 (-44:01:41.3) +/- 1.1" mag=19.12+/-0.35
dist=52.2 REFID=113
*** The position of this source is inconsistent with the XRT position.
The position is 63.4 arc sec from the BAT position.
src: 5 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
206.4260 -44.0332 18.9 -1 USNO-B1 18.84 18.39 18.59
206.4262 -44.0330 18.5 -1 USNO-B1 18.60 17.35 17.91
206.4266 -44.0327 17.7 -1 USNO-B1 17.69 18.02 17.87
206.4231 -44.0292 4.2 -1 USNO-B1 15.75 14.49 15.05
206.4231 -44.0251 11.1 -1 USNO-B1 20.14 19.13 19.58
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 10 in the list of sources is a candidate afterglow for 1121751_g120 with 1x1 stamp
ra=206.43617 (13:45:44.68) dec=-44.04493 (-44:02:41.8) +/- 1.1" mag=19.09+/-0.35
dist=68.9 REFID=154
*** The position of this source is inconsistent with the XRT position.
The position is 13.4 arc sec from the BAT position.
src: 10 distr. of nearby unmatched sources: 0 0 0 0 0
Found 2 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
206.4303 -44.0468 16.5 -1 USNO-B1 19.61 19.02 19.28
206.4350 -44.0462 5.5 -1 USNO-B1 14.82 14.66 14.73
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 16 in the list of sources is a candidate afterglow for 1121751_g120 with 1x1 stamp
ra=206.44081 (13:45:45.80) dec=-44.03215 (-44:01:55.7) +/- 1.1" mag=18.74+/-0.35
dist=81.7 REFID=136
*** The position of this source is inconsistent with the XRT position.
The position is 52.8 arc sec from the BAT position.
src: 16 distr. of nearby unmatched sources: 0 0 0 0 1
Found 3 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
206.4346 -44.0327 16.2 -1 USNO-B1 20.78 19.10 19.85
206.4365 -44.0280 18.5 -1 USNO-B1 19.30 17.98 18.57
206.4402 -44.0332 4.2 -1 USNO-B1 16.68 16.62 16.65
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 22 in the list of sources is a candidate afterglow for 1121751_g120 with 1x1 stamp
ra=206.44923 (13:45:47.82) dec=-44.03392 (-44:02:02.1) +/- 1.1" mag=19.09+/-0.35
dist=101.3 REFID=151
*** The position of this source is inconsistent with the XRT position.
The position is 61.8 arc sec from the BAT position.
src: 22 distr. of nearby unmatched sources: 0 0 0 0 1
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
206.4491 -44.0349 3.4 -1 USNO-B1 17.27 16.95 17.09 *
206.4492 -44.0298 14.7 -1 USNO-B1 18.95 18.61 18.76
206.4510 -44.0327 6.2 -1 USNO-B1 20.14 19.29 19.67
206.4504 -44.0292 17.4 -1 USNO-B1 21.32 99.99 99.99
206.4563 -44.0342 18.3 -1 USNO-B1 20.98 19.03 19.90
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 28 in the list of sources is a candidate afterglow for 1121751_g120 with 1x1 stamp
ra=206.44071 (13:45:45.77) dec=-44.01725 (-44:01:02.1) +/- 1.1" mag=19.03+/-0.35
dist=110.6 REFID=159
*** The position of this source is inconsistent with the XRT position.
The position is 103.0 arc sec from the BAT position.
src: 28 distr. of nearby unmatched sources: 0 0 0 1 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
206.4379 -44.0212 16.1 -1 USNO-B1 20.24 19.12 19.62
206.4371 -44.0190 11.3 -1 USNO-B1 18.76 18.67 18.71
206.4454 -44.0203 16.4 -1 USNO-B1 14.21 13.52 13.83
206.4453 -44.0146 15.2 -1 USNO-B1 21.19 19.03 19.99
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 31 in the list of sources is a candidate afterglow for 1121751_g120 with 1x1 stamp
ra=206.37036 (13:45:28.89) dec=-44.03032 (-44:01:49.2) +/- 1.1" mag=19.09+/-0.35
dist=109.4 REFID=141
*** The position of this source is inconsistent with the XRT position.
The position is 165.6 arc sec from the BAT position.
src: 31 distr. of nearby unmatched sources: 0 0 0 0 0
Found 1 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
206.3699 -44.0313 3.7 -1 USNO-B1 16.97 16.14 16.51 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 34 in the list of sources is a candidate afterglow for 1121751_g120 with 1x1 stamp
ra=206.44648 (13:45:47.15) dec=-44.01897 (-44:01:08.3) +/- 1.1" mag=18.70+/-0.35
dist=117.6 REFID=144
*** The position of this source is inconsistent with the XRT position.
The position is 101.9 arc sec from the BAT position.
src: 34 distr. of nearby unmatched sources: 0 0 0 1 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
206.4454 -44.0203 5.6 -1 USNO-B1 14.21 13.52 13.83
206.4489 -44.0205 8.3 -1 USNO-B1 20.03 17.29 18.51
206.4453 -44.0146 16.1 -1 USNO-B1 21.19 19.03 19.99
206.4486 -44.0144 17.5 -1 USNO-B1 19.53 18.37 18.89
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 37 in the list of sources is a candidate afterglow for 1121751_g120 with 3x3 stamp
ra=206.42376 (13:45:41.70) dec=-44.00810 (-44:00:29.2) +/- 1.1" mag=18.87+/-0.35
dist=116.8 REFID=127
*** The position of this source is inconsistent with the XRT position.
The position is 134.1 arc sec from the BAT position.
src: 37 distr. of nearby unmatched sources: 0 0 0 0 1
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
206.4237 -44.0115 12.1 -1 USNO-B1 20.71 18.96 19.74
206.4180 -44.0094 15.6 -1 USNO-B1 19.95 18.98 19.41
206.4200 -44.0092 10.6 -1 USNO-B1 19.52 18.30 18.84
206.4232 -44.0093 4.4 -1 USNO-B1 13.01 12.92 12.96 *
206.4229 -44.0043 13.8 -1 USNO-B1 20.46 18.53 19.39
206.4239 -44.0041 14.4 -1 USNO-B1 18.46 18.20 18.31
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 38 in the list of sources is a candidate afterglow for 1121751_g120 with 1x1 stamp
ra=206.43568 (13:45:44.56) dec=-44.01085 (-44:00:39.1) +/- 1.1" mag=19.03+/-0.35
dist=120.6 REFID=134
*** The position of this source is inconsistent with the XRT position.
The position is 123.5 arc sec from the BAT position.
src: 38 distr. of nearby unmatched sources: 0 0 0 0 1
Found 3 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
206.4291 -44.0132 19.0 -1 USNO-B1 19.54 19.07 19.28
206.4348 -44.0120 4.9 -1 USNO-B1 14.47 13.87 14.13
206.4381 -44.0083 11.0 -1 USNO-B1 21.09 19.16 20.02
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 44 in the list of sources is a candidate afterglow for 1121751_g120 with 1x1 stamp
ra=206.36237 (13:45:26.97) dec=-44.05317 (-44:03:11.4) +/- 1.1" mag=19.03+/-0.35
dist=135.0 REFID=135
*** The position of this source is inconsistent with the XRT position.
The position is 180.0 arc sec from the BAT position.
src: 44 distr. of nearby unmatched sources: 0 0 0 0 0
Found 3 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
206.3670 -44.0548 13.3 -1 USNO-B1 20.19 19.62 19.88
206.3671 -44.0564 16.9 -1 USNO-B1 20.73 19.64 20.12
206.3616 -44.0540 3.5 -1 USNO-B1 16.22 16.25 16.23 *
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 1121751_g120 with 3x3 stamp
ra=206.41797 (13:45:40.31) dec=-44.00344 (-44:00:12.4) +/- 1.1" mag=18.69+/-0.35
dist=130.0 REFID=124
*** The position of this source is inconsistent with the XRT position.
The position is 153.4 arc sec from the BAT position.
src: 45 distr. of nearby unmatched sources: 0 0 0 0 1
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
206.4168 -44.0045 5.0 -1 USNO-B1 13.43 13.15 13.27
206.4229 -44.0043 13.2 -1 USNO-B1 20.46 18.53 19.39
206.4136 -44.0046 12.0 -1 USNO-B1 21.81 17.85 19.61
206.4239 -44.0041 15.6 -1 USNO-B1 18.46 18.20 18.31
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 52 in the list of sources is a candidate afterglow for 1121751_g120 with 1x1 stamp
ra=206.43474 (13:45:44.34) dec=-44.00403 (-44:00:14.5) +/- 1.1" mag=18.88+/-0.35
dist=140.9 REFID=131
*** The position of this source is inconsistent with the XRT position.
The position is 147.8 arc sec from the BAT position.
src: 52 distr. of nearby unmatched sources: 0 0 0 0 1
Found 3 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
206.4381 -44.0083 17.8 -1 USNO-B1 21.09 19.16 20.02
206.4338 -44.0052 4.9 -1 USNO-B1 14.50 14.17 14.32
206.4330 -44.0025 7.1 -1 USNO-B1 17.32 16.62 16.93
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 53 in the list of sources is a candidate afterglow for 1121751_g120 with 1x1 stamp
ra=206.42540 (13:45:42.10) dec=-44.08120 (-44:04:52.3) +/- 1.1" mag=18.88+/-0.35
dist=155.9 REFID=133
*** The position of this source is inconsistent with the XRT position.
The position is 131.1 arc sec from the BAT position.
src: 53 distr. of nearby unmatched sources: 2 1 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
206.4208 -44.0769 19.5 -1 USNO-B1 19.01 18.70 18.83
206.4221 -44.0775 15.6 -1 USNO-B1 19.99 19.51 19.72
206.4252 -44.0820 3.0 -1 USNO-B1 99.99 16.52 99.99 *
206.4253 -44.0822 3.8 -1 USNO-B1 15.33 14.62 14.94 *
206.4261 -44.0824 4.7 -1 USNO-B1 99.99 15.75 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 59 in the list of sources is a candidate afterglow for 1121751_g120 with 3x3 stamp
ra=206.42709 (13:45:42.50) dec=-44.08242 (-44:04:56.7) +/- 1.1" mag=18.99+/-0.35
dist=161.3 REFID=88
*** The position of this source is inconsistent with the XRT position.
The position is 135.1 arc sec from the BAT position.
src: 59 distr. of nearby unmatched sources: 1 2 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
206.4330 -44.0798 18.0 -1 USNO-B1 21.81 19.06 20.28
206.4252 -44.0820 5.1 -1 USNO-B1 99.99 16.52 99.99
206.4253 -44.0822 4.8 -1 USNO-B1 15.33 14.62 14.94
206.4261 -44.0824 2.5 -1 USNO-B1 99.99 15.75 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 1121751_g120 with 3x3 stamp
ra=206.39641 (13:45:35.14) dec=-43.99758 (-43:59:51.3) +/- 1.1" mag=19.18+/-0.35
dist=154.3 REFID=128
*** The position of this source is inconsistent with the XRT position.
The position is 192.8 arc sec from the BAT position.
src: 64 distr. of nearby unmatched sources: 0 0 0 0 0
Found 2 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
206.3956 -43.9986 4.2 -1 USNO-B1 15.39 14.65 14.98
206.3919 -43.9989 12.7 -1 USNO-B1 17.58 16.79 17.14
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 66 in the list of sources is a candidate afterglow for 1121751_g120 with 1x1 stamp
ra=206.42079 (13:45:40.99) dec=-43.99550 (-43:59:43.8) +/- 1.1" mag=19.09+/-0.35
dist=159.3 REFID=147
*** The position of this source is inconsistent with the XRT position.
The position is 180.2 arc sec from the BAT position.
src: 66 distr. of nearby unmatched sources: 0 0 0 0 0
Found 2 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
206.4202 -43.9963 3.4 -1 USNO-B1 17.41 16.43 16.86 *
206.4235 -43.9952 7.1 -1 USNO-B1 20.55 19.04 19.71
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 69 in the list of sources is a candidate afterglow for 1121751_g120 with 1x1 stamp
ra=206.38700 (13:45:32.88) dec=-44.08510 (-44:05:06.4) +/- 1.1" mag=19.03+/-0.35
dist=176.4 REFID=156
*** The position of this source is inconsistent with the XRT position.
The position is 183.8 arc sec from the BAT position.
src: 69 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
206.3851 -44.0810 15.5 -1 USNO-B1 19.71 19.24 19.45
206.3880 -44.0822 10.6 -1 USNO-B1 19.36 18.66 18.97
206.3920 -44.0836 13.9 -1 USNO-B1 20.48 18.44 19.34
206.3882 -44.0835 6.4 -1 USNO-B1 19.45 17.94 18.61
206.3861 -44.0860 4.0 -1 USNO-B1 16.66 15.51 16.02 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 99 in the list of sources is a candidate afterglow for 1121751_g120 with 3x3 stamp
ra=206.47668 (13:45:54.40) dec=-44.00878 (-44:00:31.6) +/- 1.1" mag=19.38+/-0.35
dist=202.7 REFID=98
*** The position of this source is inconsistent with the XRT position.
The position is 176.0 arc sec from the BAT position.
src: 99 distr. of nearby unmatched sources: 0 0 0 0 1
Found 3 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
206.4696 -44.0104 19.2 -1 USNO-B1 20.86 99.99 99.99
206.4724 -44.0076 11.9 -1 USNO-B1 19.68 19.28 19.46
206.4773 -44.0091 2.0 -1 USNO-B1 17.55 17.29 17.40 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 106 in the list of sources is a candidate afterglow for 1121751_g120 with 3x3 stamp
ra=206.47020 (13:45:52.85) dec=-44.08192 (-44:04:54.9) +/- 1.1" mag=18.15+/-0.35
dist=217.5 REFID=107
*** The position of this source is inconsistent with the XRT position.
The position is 167.2 arc sec from the BAT position.
src: 106 distr. of nearby unmatched sources: 0 1 1 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
206.4649 -44.0812 13.9 -1 USNO-B1 20.12 19.13 19.57
206.4695 -44.0834 5.5 -1 USNO-B1 13.79 13.49 13.62
206.4698 -44.0842 8.1 -1 USNO-B1 13.94 99.99 99.99
206.4700 -44.0853 12.1 -1 USNO-B1 18.43 17.87 18.12
206.4701 -44.0857 13.4 -1 USNO-B1 18.84 17.96 18.35
206.4689 -44.0867 17.5 -1 USNO-B1 19.99 18.97 19.42
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 111 in the list of sources is a candidate afterglow for 1121751_g120 with 3x3 stamp
ra=206.47291 (13:45:53.50) dec=-43.99905 (-43:59:56.6) +/- 1.1" mag=18.09+/-0.35
dist=216.2 REFID=59
*** The position of this source is inconsistent with the XRT position.
The position is 197.8 arc sec from the BAT position.
src: 111 distr. of nearby unmatched sources: 0 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
206.4677 -44.0007 14.9 -1 USNO-B1 18.42 17.56 17.94
206.4680 -44.0006 13.8 -1 USNO-B1 18.07 99.99 99.99
206.4727 -44.0033 15.1 -1 USNO-B1 17.47 16.79 17.09
206.4696 -44.0009 10.9 -1 USNO-B1 20.16 12.93 16.14 *
206.4711 -43.9996 5.0 -1 USNO-B1 13.69 12.93 13.27 *
206.4692 -43.9976 11.0 -1 USNO-B1 20.78 18.95 19.76
206.4791 -44.0013 17.9 -1 USNO-B1 17.77 17.45 17.59
206.4780 -43.9978 14.1 -1 USNO-B1 16.83 16.49 16.64
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 115 in the list of sources is a candidate afterglow for 1121751_g120 with 1x1 stamp
ra=206.47338 (13:45:53.61) dec=-44.08476 (-44:05:05.1) +/- 1.1" mag=18.93+/-0.35
dist=230.5 REFID=158
*** The position of this source is inconsistent with the XRT position.
The position is 180.3 arc sec from the BAT position.
src: 115 distr. of nearby unmatched sources: 0 1 1 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
206.4695 -44.0834 11.2 -1 USNO-B1 13.79 13.49 13.62
206.4698 -44.0842 9.4 -1 USNO-B1 13.94 99.99 99.99
206.4700 -44.0853 9.0 -1 USNO-B1 18.43 17.87 18.12
206.4701 -44.0857 9.0 -1 USNO-B1 18.84 17.96 18.35
206.4689 -44.0867 13.4 -1 USNO-B1 19.99 18.97 19.42
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 122 in the list of sources is a candidate afterglow for 1121751_g120 with 3x3 stamp
ra=206.50222 (13:46:00.53) dec=-44.03526 (-44:02:07.0) +/- 1.1" mag=18.75+/-0.35
dist=237.1 REFID=90
*** The position of this source is inconsistent with the XRT position.
The position is 187.6 arc sec from the BAT position.
src: 122 srclist_match has ID
src: 122 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
206.5025 -44.0349 1.4 -1 USNO-B1 17.00 15.99 16.44 *
206.5027 -44.0405 18.8 -1 USNO-B1 21.62 20.19 20.82
206.5042 -44.0346 5.6 -1 USNO-B1 14.38 13.68 13.99
206.5052 -44.0343 8.4 -1 USNO-B1 14.10 13.53 13.78
206.5099 -44.0353 19.8 -1 USNO-B1 99.99 19.30 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 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
206.4139 -44.0402 8.9 -1 USNO-B1 18.68 18.33 18.49
206.4113 -44.0370 8.0 -1 USNO-B1 19.77 19.11 19.40
The closest star is 8.03" away.
List UVOT sources within 10" of the XRT position:
Unmatched source ra=206.41045 (13:45:38.51) dec=-44.03867 (-44:02:19.2) +/- 1.1" mag=18.73+/-0.35 dist=2.0 REFID=72
Unmatched source ra=206.41086 (13:45:38.61) dec=-44.03765 (-44:02:15.5) +/- 1.1" mag=19.09+/-0.35 dist=5.5 REFID=148
There are 1 candidate(s) outside XRT error circle with mag < 18.66
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.22, XRT distances < 5.5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 1 good candidate(s) found.
srclist paragraph message for exposure 1 of trigger 1121751
------ Start for Possible Stand-alone Circular ----
In response to GRB220826 (Swift/BAT trigger 1121751) at 11:55:21 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 90 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 13:45:38.52 = 206.41049
DEC(J2000) = -44:02:19.0 = -44.03862
with a 90%-confidence error radius of about 0.62 arc sec. This position is 2.1
arc sec. from the center of the XRT error circle. The estimated magnitude is
17.89 with a 1-sigma error of about 0.15. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.110.
------- notes for trigger 1121751 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 220826d14h57m11s012867usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1121751
-expid=683207842 -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/1121751/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for srclist. XRT position found for Genie image. BAT
position found.
UVOT exposure began at MET 683207842.235 or about 2022:238:11:57:17 UT
Found 1314 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 22% of the srclist region. Found 160 sources in
srclist catalog. Found 29 srclist source(s) without IDs. There are 1 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
19.22 mag.
Found 30 source(s) in Genie image catalog. 2 source(s) are within 10.0" of the
xrt position. Found 3 Genie image source(s) without IDs. There are 1 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.29 mag. Found 216 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 21% of the Genie image region.
This paragraph is only useful if the XRT position is grossly wrong. There are 1
candidate(s) in the srclist data with mag < 18.66 inside the BAT error region,
but outside the XRT error region. The brightest such source is at RA=206.47020
(13:45:52.85), DEC=-44.08192 (-44:04:54.9) (J2000). It has a mag of 18.15. It
is 167.2" 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 90 seconds after the BAT trigger. There is a candidate afterglow in
the list of sources generated on-board at
RA(J2000) = 13:45:52.85 = 206.47020
DEC(J2000) = -44:04:54.9 = -44.08192
with a 90%-confidence error radius of about 1.10 arc sec. The estimated
magnitude is 18.15 with a 1-sigma error of about 0.35. No correction has been
made for the expected extinction corresponding to E(B-V) of 0.110.
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?
683207842 90 WHITE 206.41045 -44.03867 18.73/19.2 2.0 srclist Yes
683207842 90 WHITE 206.41049 -44.03862 17.89/20.3 2.1 image Yes
List afterglow candidates for other finding charts.
683208054 302 U srclist found no candidates.
683208054 302 U 206.41043 -44.03878 18.67/20.1 1.6 image Yes
683208611 859 ? srclist data are not available.
683208611 859 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: -44.03862
GRB_ERROR: 0.62
GRB_RA: 206.41049
IMAGE_START_TIME: 11:57:17
MAGNITUDE: 17.89
MAG_ERROR: 0.15
MESSAGE_TYPE: ACK
SOURCE: XRT