srclist overlap message for exposure 2 of trigger 981957
uvot_overlap.pl vrs. 2010-12-20b fem started at 200712d06h35m52s149420usUT
The observation of trigger 981957 started 2020-07-11T11:19:35.6
Examining file ./981957_g898_uvot_sky_srclist.fits
The exposure ID is 616159175
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (286.0170,-0.1417) with a roll angle of 347.2
It is square with sides of 12.05 arc min. for an area of 145.15 sq arc min
The BAT error circle is centered at (285.9770,-0.1360) with a radius of 3.000 arc min
This is 2.425 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 (285.9702,-0.1471) with a radius of 0.027 arc min
This is 2.827 arc min from the center of the uvot region
The area of the XRT error circle is 0.002 sq. arc min
The UVOT/XRT overlap is 0.002 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 2 of trigger 981957
find_uvot_ag.pl vrs. 2017-02-17 fem started at 200712d06h36m34s489431usUT
Observation start time is 2020-07-11T11:19:35.6
Examining file ./981957_g898_uvot_catalog_srclist.fits
The exposure ID is 616159175
The exposure is 125.591 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 981957_g898
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 0.486
srclist_overlap returned: xrt_overlap 1.000
Dimmest detected source in 981957_g898 has mag 18.93
Aspect correction adds 0.00007 degrees (0.016 sec of time = 0.24 arc sec) to RA
Aspect correction adds 0.00243 degrees ( 8.74 arcsec) to Dec
Total aspect correction is 8.74 arcsec
Star catalogs centered at 285.9728 , -0.1189 with radius 7.65 arc min.
n_usno: 5005 n_gsc: 0
*** WARNING -- bright star catalog has 14 entries brighter than 12 mag
The brightest has mag 8.5462
RA DEC Mag Color
bright star 0: 285.98651 (19:03:56.76) -0.12119 (-00:07:16.3) 10.91 USNO-V
bright star 1: 285.92809 (19:03:42.74) -0.13267 (-00:07:57.6) 11.78 USNO-V
bright star 2: 285.91465 (19:03:39.52) -0.11978 (-00:07:11.2) 11.86 USNO-V
bright star 3: 285.91707 (19:03:40.10) -0.08938 (-00:05:21.8) 11.99 USNO-V
bright star 4: 285.92658 (19:03:42.38) -0.06956 (-00:04:10.4) 10.84 USNO-V
bright star 5: 286.04332 (19:04:10.40) -0.11639 (-00:06:59.0) 11.95 USNO-V
bright star 6: 285.89680 (19:03:35.23) -0.11492 (-00:06:53.7) 11.71 USNO-V
bright star 7: 285.93094 (19:03:43.43) -0.05524 (-00:03:18.9) 11.16 USNO-V
bright star 8: 285.92366 (19:03:41.68) -0.05717 (-00:03:25.8) 11.44 USNO-V
bright star 9: 285.97378 (19:03:53.71) -0.03760 (-00:02:15.4) 11.96 USNO-V
bright star 10: 285.92343 (19:03:41.62) -0.18949 (-00:11:22.1) 11.45 USNO-R
bright star 11: 285.90579 (19:03:37.39) -0.06163 (-00:03:41.9) 8.55 USNO-V
bright star 12: 285.91448 (19:03:39.48) -0.04676 (-00:02:48.3) 11.83 USNO-R
bright star 13: 286.01106 (19:04:02.65) -0.03421 (-00:02:03.2) 11.95 USNO-R
Mean distance difference (CAT_DELTA) for 154 matched entries is 0.929" for 981957_g898
Mean and std. dev of mag. difference (MAG_DELTA) are 1.987 and 0.683 for 981957_g898
Found 38 entries without IDs and 9 entries that are acceptable afterglow candidates for 981957_g898.
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.
4 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=285.9770 (19:03:54.48) DEC=-0.1360 (-00:08:09.6)
XRT distances are from RA=285.9702 (19:03:52.85) DEC=-0.1471 (-00:08:49.5)
-----------------
Entry 18 in the list of sources is a candidate afterglow for 981957_g898 with 1x1 stamp
ra=285.96752 (19:03:52.20) dec=-0.10806 (-00:06:29.0) +/- 1.1" mag=18.29+/-0.35
dist=140.8 REFID=142
*** The position of this source is inconsistent with the XRT position.
The position is 106.2 arc sec from the BAT position.
src: 18 srclist_match has ID
src: 18 distr. of nearby unmatched sources: 0 0 0 0 0
Found 19 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
285.9706 -0.1119 17.7 -1 USNO-B1 19.41 19.33 19.36
285.9676 -0.1136 19.9 -1 USNO-B1 18.10 17.66 17.85
285.9664 -0.1111 11.8 -1 USNO-B1 99.99 19.84 99.99
285.9657 -0.1117 14.5 -1 USNO-B1 20.58 19.92 20.21
285.9699 -0.1089 9.1 -1 USNO-B1 19.28 18.68 18.95
285.9678 -0.1097 6.0 -1 USNO-B1 19.18 99.99 99.99
285.9719 -0.1084 15.9 -1 USNO-B1 17.58 16.75 17.12
285.9683 -0.1092 5.0 -1 USNO-B1 17.43 15.46 16.34
285.9665 -0.1099 7.5 -1 USNO-B1 19.99 19.50 19.72
285.9646 -0.1104 13.5 -1 USNO-B1 20.38 19.18 19.71
285.9677 -0.1077 1.3 -1 USNO-B1 17.11 15.67 16.31 *
285.9635 -0.1105 17.0 -1 USNO-B1 19.90 18.95 19.37
285.9718 -0.1057 17.7 -1 USNO-B1 18.00 16.45 17.14
285.9675 -0.1067 4.9 -1 USNO-B1 16.05 14.96 15.45
285.9708 -0.1055 14.8 -1 USNO-B1 17.72 99.99 99.99
285.9701 -0.1052 13.7 -1 USNO-B1 16.95 15.07 15.90
285.9690 -0.1042 14.8 -1 USNO-B1 20.04 19.20 19.57
285.9688 -0.1040 15.3 -1 USNO-B1 21.02 19.81 20.35
285.9647 -0.1042 17.4 -1 USNO-B1 20.79 20.89 20.85
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 21 in the list of sources is a candidate afterglow for 981957_g898 with 3x3 stamp
ra=285.94540 (19:03:46.90) dec=-0.13798 (-00:08:16.7) +/- 1.1" mag=17.68+/-0.35
dist=95.1 REFID=63
*** The position of this source is inconsistent with the XRT position.
The position is 114.0 arc sec from the BAT position.
src: 21 srclist_match has ID
src: 21 distr. of nearby unmatched sources: 0 0 0 0 0
Found 20 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
285.9497 -0.1357 17.7 -1 USNO-B1 19.45 19.06 19.23
285.9480 -0.1331 19.7 -1 USNO-B1 18.98 18.54 18.74
285.9480 -0.1357 12.4 -1 USNO-B1 20.64 19.86 20.21
285.9499 -0.1389 16.6 -1 USNO-B1 20.36 20.05 20.19
285.9459 -0.1330 17.9 -1 USNO-B1 18.98 18.10 18.49
285.9488 -0.1392 12.9 -1 USNO-B1 20.67 18.56 19.50
285.9476 -0.1386 8.3 -1 USNO-B1 99.99 17.73 99.99
285.9477 -0.1412 14.1 -1 USNO-B1 20.29 19.91 20.08
285.9451 -0.1381 1.2 -1 USNO-B1 16.73 13.98 15.20 *
285.9433 -0.1365 9.3 -1 USNO-B1 15.86 99.99 99.99
285.9418 -0.1338 19.7 -1 USNO-B1 16.51 14.28 15.27
285.9475 -0.1426 18.2 -1 USNO-B1 18.34 17.84 18.06
285.9451 -0.1399 6.9 -1 USNO-B1 21.33 18.86 19.96
285.9422 -0.1373 11.7 -1 USNO-B1 16.43 99.99 99.99
285.9417 -0.1367 13.9 -1 USNO-B1 99.99 12.53 99.99 *
285.9447 -0.1419 14.5 -1 USNO-B1 17.63 18.34 18.03
285.9404 -0.1366 18.8 -1 USNO-B1 16.84 99.99 99.99
285.9406 -0.1373 17.3 -1 USNO-B1 15.39 14.48 14.89
285.9422 -0.1421 18.8 -1 USNO-B1 99.99 20.27 99.99
285.9406 -0.1400 18.9 -1 USNO-B1 17.82 15.73 16.66
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 981957_g898 with 1x1 stamp
ra=285.94714 (19:03:47.31) dec=-0.16370 (-00:09:49.3) +/- 1.1" mag=18.74+/-0.35
dist=102.4 REFID=181
*** The position of this source is inconsistent with the XRT position.
The position is 146.6 arc sec from the BAT position.
src: 34 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
285.9502 -0.1611 14.3 -1 USNO-B1 18.89 18.28 18.55
285.9515 -0.1621 16.7 -1 USNO-B1 19.18 18.03 18.54
285.9448 -0.1587 19.8 -1 USNO-B1 19.42 99.99 99.99
285.9503 -0.1646 11.9 -1 USNO-B1 20.54 19.66 20.05
285.9487 -0.1639 5.7 -1 USNO-B1 18.93 18.73 18.82
285.9471 -0.1631 2.0 -1 USNO-B1 16.95 15.47 16.13 *
285.9428 -0.1613 17.9 -1 USNO-B1 17.55 16.26 16.83
285.9458 -0.1644 5.5 -1 USNO-B1 20.28 19.77 20.00
285.9424 -0.1628 17.3 -1 USNO-B1 99.99 16.58 99.99
285.9491 -0.1668 13.0 -1 USNO-B1 99.99 19.19 99.99
285.9478 -0.1664 9.8 -1 USNO-B1 18.00 17.76 17.87
285.9432 -0.1640 14.3 -1 USNO-B1 17.06 15.67 16.29
285.9483 -0.1690 19.4 -1 USNO-B1 20.65 19.82 20.19
285.9470 -0.1689 18.7 -1 USNO-B1 21.33 21.00 21.15
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 43 in the list of sources is a candidate afterglow for 981957_g898 with 3x3 stamp
ra=285.93413 (19:03:44.19) dec=-0.12392 (-00:07:26.1) +/- 1.1" mag=17.97+/-0.35
dist=154.3 REFID=97
*** The position of this source is inconsistent with the XRT position.
The position is 160.3 arc sec from the BAT position.
src: 43 distr. of nearby unmatched sources: 0 0 0 0 0
Found 21 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
285.9388 -0.1228 17.2 -1 USNO-B1 17.12 16.89 16.99
285.9386 -0.1208 19.7 -1 USNO-B1 20.26 19.54 19.86
285.9386 -0.1258 17.6 -1 USNO-B1 18.58 18.27 18.41
285.9377 -0.1202 18.4 -1 USNO-B1 21.01 20.03 20.47
285.9374 -0.1241 11.7 -1 USNO-B1 16.95 15.59 16.19
285.9377 -0.1276 18.5 -1 USNO-B1 16.75 16.48 16.60
285.9361 -0.1204 14.5 -1 USNO-B1 19.12 18.38 18.71
285.9343 -0.1202 13.6 -1 USNO-B1 18.79 17.84 18.26
285.9342 -0.1225 5.0 -1 USNO-B1 15.70 13.75 14.61
285.9343 -0.1233 2.2 -1 USNO-B1 15.29 99.99 99.99 *
285.9346 -0.1264 9.1 -1 USNO-B1 18.09 17.39 17.70
285.9336 -0.1186 19.3 -1 USNO-B1 21.60 19.56 20.47
285.9341 -0.1254 5.5 -1 USNO-B1 17.60 99.99 99.99
285.9334 -0.1255 6.1 -1 USNO-B1 18.88 99.99 99.99
285.9328 -0.1217 9.2 -1 USNO-B1 18.55 18.14 18.32
285.9320 -0.1252 9.1 -1 USNO-B1 18.29 17.65 17.93
285.9309 -0.1216 14.3 -1 USNO-B1 19.64 18.81 19.18
285.9311 -0.1255 12.2 -1 USNO-B1 18.93 18.20 18.52
285.9308 -0.1241 12.1 -1 USNO-B1 18.57 17.88 18.19
285.9315 -0.1287 19.7 -1 USNO-B1 19.58 19.48 19.52
285.9302 -0.1244 14.2 -1 USNO-B1 20.72 20.05 20.35
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 981957_g898 with 3x3 stamp
ra=285.94011 (19:03:45.63) dec=-0.10837 (-00:06:30.1) +/- 1.1" mag=17.19+/-0.35
dist=176.5 REFID=53
*** The position of this source is inconsistent with the XRT position.
The position is 165.9 arc sec from the BAT position.
src: 49 distr. of nearby unmatched sources: 0 0 0 0 0
Found 15 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
285.9453 -0.1095 19.3 -1 USNO-B1 18.67 16.88 17.67
285.9444 -0.1113 18.6 -1 USNO-B1 19.89 19.85 19.87
285.9443 -0.1098 16.0 -1 USNO-B1 18.53 99.99 99.99
285.9428 -0.1117 15.4 -1 USNO-B1 17.24 16.66 16.91
285.9429 -0.1082 10.1 -1 USNO-B1 17.33 20.05 18.84
285.9432 -0.1075 11.5 -1 USNO-B1 20.43 19.64 19.99
285.9414 -0.1105 9.1 -1 USNO-B1 19.52 18.55 18.98
285.9398 -0.1079 2.1 -1 USNO-B1 15.05 13.93 14.43 *
285.9390 -0.1104 8.3 -1 USNO-B1 20.49 99.99 99.99
285.9389 -0.1097 6.3 -1 USNO-B1 19.09 18.61 18.82
285.9390 -0.1072 5.7 -1 USNO-B1 17.81 99.99 99.99
285.9396 -0.1048 12.9 -1 USNO-B1 20.73 19.51 20.05
285.9374 -0.1121 16.7 -1 USNO-B1 19.20 17.67 18.35
285.9375 -0.1074 10.1 -1 USNO-B1 17.63 18.21 17.95
285.9361 -0.1101 15.7 -1 USNO-B1 19.43 18.15 18.72
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 61 in the list of sources is a candidate afterglow for 981957_g898 with 3x3 stamp
ra=285.98097 (19:03:55.43) dec=-0.08477 (-00:05:05.2) +/- 1.1" mag=17.82+/-0.35
dist=227.6 REFID=91
*** The position of this source is inconsistent with the XRT position.
The position is 185.0 arc sec from the BAT position.
src: 61 distr. of nearby unmatched sources: 0 0 0 0 0
Found 13 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
285.9802 -0.0891 15.9 -1 USNO-B1 17.54 15.50 16.41
285.9765 -0.0880 19.8 -1 USNO-B1 19.26 18.25 18.70
285.9822 -0.0887 14.7 -1 USNO-B1 17.97 17.32 17.61
285.9776 -0.0873 15.2 -1 USNO-B1 18.55 17.96 18.22
285.9829 -0.0865 9.3 -1 USNO-B1 17.81 15.78 16.68
285.9767 -0.0849 15.3 -1 USNO-B1 99.99 19.19 99.99
285.9810 -0.0854 2.2 -1 USNO-B1 16.04 14.45 15.15 *
285.9776 -0.0827 14.3 -1 USNO-B1 99.99 16.66 99.99
285.9821 -0.0835 6.1 -1 USNO-B1 21.33 19.23 20.17
285.9836 -0.0831 11.2 -1 USNO-B1 21.85 19.89 20.76
285.9856 -0.0820 19.3 -1 USNO-B1 18.37 16.12 17.12
285.9804 -0.0805 15.7 -1 USNO-B1 19.05 18.61 18.81
285.9813 -0.0794 19.4 -1 USNO-B1 99.99 19.70 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 62 in the list of sources is a candidate afterglow for 981957_g898 with 3x3 stamp
ra=285.94341 (19:03:46.42) dec=-0.17488 (-00:10:29.6) +/- 1.1" mag=18.01+/-0.35
dist=139.0 REFID=86
*** The position of this source is inconsistent with the XRT position.
The position is 185.0 arc sec from the BAT position.
src: 62 distr. of nearby unmatched sources: 0 0 0 0 0
Found 19 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
285.9423 -0.1696 19.5 -1 USNO-B1 17.59 16.13 16.78
285.9453 -0.1713 14.6 -1 USNO-B1 17.57 17.17 17.35
285.9451 -0.1721 11.7 -1 USNO-B1 99.99 16.53 99.99
285.9452 -0.1730 9.3 -1 USNO-B1 18.25 18.92 18.62
285.9424 -0.1719 11.4 -1 USNO-B1 19.65 18.46 18.99
285.9425 -0.1722 10.2 -1 USNO-B1 20.52 20.14 20.31
285.9458 -0.1742 8.9 -1 USNO-B1 99.99 19.74 99.99
285.9480 -0.1754 16.6 -1 USNO-B1 19.93 19.06 19.45
285.9463 -0.1753 10.6 -1 USNO-B1 19.34 18.23 18.72
285.9429 -0.1747 2.0 -1 USNO-B1 16.20 15.03 15.54 *
285.9396 -0.1729 15.4 -1 USNO-B1 18.76 18.02 18.35
285.9460 -0.1767 11.5 -1 USNO-B1 19.02 15.89 17.27
285.9452 -0.1766 9.0 -1 USNO-B1 99.99 16.42 99.99
285.9424 -0.1755 4.3 -1 USNO-B1 21.73 19.70 20.60
285.9467 -0.1789 18.8 -1 USNO-B1 99.99 19.13 99.99
285.9423 -0.1774 10.1 -1 USNO-B1 19.70 19.86 19.79
285.9456 -0.1791 17.2 -1 USNO-B1 20.01 18.65 19.25
285.9432 -0.1788 14.2 -1 USNO-B1 99.99 20.16 99.99
285.9382 -0.1766 19.6 -1 USNO-B1 17.85 16.82 17.28
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 70 in the list of sources is a candidate afterglow for 981957_g898 with 1x1 stamp
ra=285.92667 (19:03:42.40) dec=-0.15719 (-00:09:25.9) +/- 1.1" mag=18.15+/-0.35
dist=160.9 REFID=122
*** The position of this source is inconsistent with the XRT position.
The position is 196.6 arc sec from the BAT position.
src: 70 srclist_match has ID
src: 70 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
285.9310 -0.1544 18.5 -1 USNO-B1 19.14 16.66 17.76
285.9301 -0.1543 16.1 -1 USNO-B1 19.05 18.82 18.92
285.9308 -0.1560 15.5 -1 USNO-B1 20.64 19.94 20.25
285.9320 -0.1581 19.4 -1 USNO-B1 20.34 19.55 19.90
285.9262 -0.1553 7.0 -1 USNO-B1 99.99 18.93 99.99
285.9296 -0.1597 14.0 -1 USNO-B1 18.46 17.94 18.17
285.9268 -0.1571 0.5 -1 USNO-B1 17.68 16.07 16.78 *
285.9247 -0.1552 10.3 -1 USNO-B1 17.43 17.27 17.34
285.9236 -0.1539 16.2 -1 USNO-B1 19.95 15.64 17.56
285.9233 -0.1545 15.6 -1 USNO-B1 99.99 18.08 99.99
285.9271 -0.1600 10.2 -1 USNO-B1 99.99 19.89 99.99
285.9239 -0.1591 12.0 -1 USNO-B1 19.40 19.07 19.22
285.9224 -0.1573 15.4 -1 USNO-B1 18.21 16.07 17.03
285.9252 -0.1609 14.4 -1 USNO-B1 18.71 18.39 18.53
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 71 in the list of sources is a candidate afterglow for 981957_g898 with 1x1 stamp
ra=285.93487 (19:03:44.37) dec=-0.17114 (-00:10:16.1) +/- 1.1" mag=18.70+/-0.35
dist=153.9 REFID=154
*** The position of this source is inconsistent with the XRT position.
The position is 197.5 arc sec from the BAT position.
src: 71 distr. of nearby unmatched sources: 0 0 0 0 0
Found 16 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
285.9393 -0.1678 19.9 -1 USNO-B1 17.04 15.42 16.14
285.9342 -0.1664 17.4 -1 USNO-B1 21.68 20.88 21.24
285.9353 -0.1673 14.0 -1 USNO-B1 20.15 19.84 19.98
285.9366 -0.1702 7.2 -1 USNO-B1 20.58 20.12 20.32
285.9396 -0.1729 18.3 -1 USNO-B1 18.76 18.02 18.35
285.9320 -0.1695 11.9 -1 USNO-B1 18.38 16.71 17.45
285.9347 -0.1721 3.5 -1 USNO-B1 16.18 15.25 15.66 *
285.9366 -0.1735 10.5 -1 USNO-B1 99.99 19.66 99.99
285.9342 -0.1721 4.1 -1 USNO-B1 19.76 15.18 17.21
285.9343 -0.1725 5.3 -1 USNO-B1 99.99 14.19 99.99
285.9371 -0.1747 15.2 -1 USNO-B1 18.88 18.06 18.42
285.9306 -0.1712 15.2 -1 USNO-B1 19.57 18.73 19.10
285.9296 -0.1715 19.1 -1 USNO-B1 19.82 19.16 19.45
285.9336 -0.1753 15.7 -1 USNO-B1 16.75 14.75 15.64
285.9327 -0.1757 18.1 -1 USNO-B1 17.03 16.45 16.70
285.9302 -0.1742 19.9 -1 USNO-B1 16.95 14.84 15.77
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
285.9681 -0.1455 9.7 -1 USNO-B1 20.55 20.04 20.26
285.9718 -0.1472 5.6 -1 USNO-B1 20.49 19.91 20.17
The closest star is 5.62" 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 19.12, 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 2 of trigger 981957
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no overlap
SRCLIST PROBLEM: high density of stars, 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 GRB200711 (Swift/BAT trigger 981957) at 11:04:36 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 126 seconds with the White filter
starting 873 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 none of
the XRT error circle. The 8'x8' region for the list of sources generated
on-board covers 100% of the XRT error circle. Because of the density of
catalogued stars, further analysis is required to report an upper limit for any
afterglow in the region. No correction has been made for the large, but
uncertain, extinction expected.
------- notes for trigger 981957 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 200712d06h36m43s589387usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=981957
-expid=616159175 -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/981957/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
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 616159175.6151 or about 2020:193:11:19:30 UT
Found 5000 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 59% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 38 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 19.12 mag.
Found 70 source(s) in Genie image catalog. Found 4 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 1434 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
102% of the Genie image region.
Genie image analysis:
Found 63187.8 counts in the large background region of 4505.0 pixels or a rate
of 14.026 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 19.73 mag. for a
4-arcsec aperture. The number of srclist sources filled the available
telemetry. The weakest source detected was 18.93 mag. The closest srclist
source has ra= 285.9680 dec= -0.1496 mag=17.57 sep=12.13". The closest Genie
source has ra= 285.9912 dec= -0.1471 mag=18.23 sep=75.43".
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?
616159175 873 WHITE srclist found no candidates.
616159175 873 WHITE image found no candidates.
List afterglow candidates for other finding charts.
616158471 169 WHITE srclist found no candidates.
616158471 169 WHITE image found no candidates.
------- Tokens for Quick GCN -------