image overlap message for exposure 2 of trigger 1191188
uvot_overlap.pl vrs. 2010-12-20b fem started at 230911d15h17m49s444930usUT
The observation of trigger 1191188 started 2023-09-11T08:52:37.8
Examining file ./1191188_g311_uvot_sky_image.fits
The exposure ID is 716115157
The exposure time is 249.935 (seconds)
The filter is U.
The uvot region is centered at (226.7749,-41.3324) with a roll angle of 296.2
It is square with sides of 2.68 arc min. for an area of 7.17 sq arc min
The BAT error circle is centered at (226.7820,-41.3340) with a radius of 3.000 arc min
This is 0.333 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 7.17 sq. arc min or 0.25 of the BAT error circle
The XRT error circle is centered at (226.7985,-41.3302) with a radius of 0.035 arc min
This is 1.070 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
image afterglow message for exposure 2 of trigger 1191188
find_uvot_ag.pl vrs. 2023-04-25a fem started at 230911d15h17m54s802453usUT
Observation start time is 2023-09-11T08:52:37.8
Examining file ./1191188_g311_uvot_catalog_image.fits
The exposure ID is 716115157
The exposure is 249.935 sec.
The bin size is 2 pixels
The filter is U
There are 15 detected source(s) for 1191188_g311
Aspect correction adds -0.00115 degrees (-0.276 sec of time = -3.10 arc sec) to RA
Aspect correction adds 0.00153 degrees ( 5.51 arcsec) to Dec
Total aspect correction is 6.33 arcsec
Star catalogs centered at 226.7689 , -41.3361 with radius 2.48 arc min.
n_usno: 236 n_gsc: 290
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 3 matched entries is 1.373" for 1191188_g311
Mean and std. dev of mag. difference (MAG_DELTA) are 0.233 and 1.557 for 1191188_g311
Found 12 entries without IDs and 12 entries that are acceptable afterglow candidates for 1191188_g311.
Acceptable entries have no ID, XRT distances < 5.25", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
Magnitude criteria will be applied later.
BAT distances are from RA=226.7820 (15:07:07.68) DEC=-41.3340 (-41:20:02.4)
XRT distances are from RA=226.7985 (15:07:11.64) DEC=-41.3302 (-41:19:48.6)
*** WARNING 80 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1191188_g311 with genie
ra=226.78022 (15:07:07.25) dec=-41.34010 (-41:20:24.3) +/- 0.6" mag=16.61+/-0.14
dist=61.0 REFID=10 major=2.3 minor=2.3 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 22.5 arc sec from the BAT position.
Found 13 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
226.7755 -41.3407 12.8 -1 USNO-B1 19.81 18.85 19.28
226.7808 -41.3408 3.1 -1 USNO-B1 16.80 15.13 15.87 *
226.7794 -41.3442 15.0 -1 USNO-B1 20.69 19.07 19.79
226.7811 -41.3428 10.2 -1 USNO-B1 19.25 18.22 18.68
226.7762 -41.3379 13.4 -1 GSC2.3 99.99 22.29 99.99
226.7755 -41.3406 13.0 -1 GSC2.3 18.73 19.79 99.99
226.7814 -41.3365 13.3 -1 GSC2.3 99.99 21.69 99.99
226.7771 -41.3434 14.7 -1 GSC2.3 19.80 21.11 99.99
226.7808 -41.3408 3.1 -1 GSC2.3 14.96 16.46 99.99 *
226.7793 -41.3442 15.1 -1 GSC2.3 19.08 20.72 99.99
226.7810 -41.3429 10.4 -1 GSC2.3 18.29 19.43 99.99
226.7829 -41.3446 17.7 -1 GSC2.3 99.99 22.29 99.99
226.7863 -41.3397 16.4 -1 GSC2.3 99.99 22.31 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 mag
-----------------
Entry 2 in the list of sources is a candidate afterglow for 1191188_g311 with genie
ra=226.78032 (15:07:07.28) dec=-41.34751 (-41:20:51.0) +/- 0.6" mag=17.50+/-0.15
dist=79.4 REFID=12 major=2.3 minor=2.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 48.8 arc sec from the BAT position.
Found 12 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
226.7794 -41.3442 12.1 -1 USNO-B1 20.69 19.07 19.79
226.7811 -41.3428 16.9 -1 USNO-B1 19.25 18.22 18.68
226.7773 -41.3464 9.2 -1 USNO-B1 18.69 17.00 17.75
226.7810 -41.3484 3.6 -1 USNO-B1 17.73 16.36 16.97
226.7862 -41.3472 15.8 -1 USNO-B1 20.39 18.27 19.21
226.7771 -41.3434 17.1 -1 GSC2.3 19.80 21.11 99.99
226.7793 -41.3442 12.0 -1 GSC2.3 19.08 20.72 99.99
226.7810 -41.3429 16.6 -1 GSC2.3 18.29 19.43 99.99
226.7771 -41.3464 9.5 -1 GSC2.3 17.07 18.69 99.99
226.7829 -41.3446 12.6 -1 GSC2.3 99.99 22.29 99.99
226.7809 -41.3484 3.7 -1 GSC2.3 16.35 17.55 99.99
226.7860 -41.3473 15.5 -1 GSC2.3 18.30 20.46 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 2.3
-----------------
Entry 3 in the list of sources is a candidate afterglow for 1191188_g311 with genie
ra=226.79558 (15:07:10.94) dec=-41.34381 (-41:20:37.7) +/- 0.6" mag=17.54+/-0.15
dist=49.7 REFID=11 major=2.8 minor=2.4 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 51.0 arc sec from the BAT position.
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
226.7930 -41.3425 8.3 -1 USNO-B1 18.01 16.72 17.29
226.7964 -41.3446 3.7 -1 USNO-B1 17.68 16.56 17.06
226.7962 -41.3482 15.8 -1 USNO-B1 19.30 18.35 18.77
226.7997 -41.3450 11.8 -1 USNO-B1 19.56 18.44 18.93
226.7930 -41.3426 8.4 -1 GSC2.3 16.75 17.92 99.99
226.7964 -41.3446 3.6 -1 GSC2.3 16.55 17.55 99.99
226.7961 -41.3482 15.9 -1 GSC2.3 18.24 19.36 99.99
226.7996 -41.3450 11.6 -1 GSC2.3 18.44 19.55 99.99
226.8011 -41.3418 16.4 -1 GSC2.3 20.25 21.53 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 2.8
-----------------
Entry 4 in the list of sources is a candidate afterglow for 1191188_g311 with genie
ra=226.77085 (15:07:05.00) dec=-41.31726 (-41:19:02.1) +/- 0.7" mag=18.20+/-0.16
dist=88.0 REFID=15 major=2.0 minor=1.8 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 67.4 arc sec from the BAT position.
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
226.7683 -41.3219 17.9 -1 USNO-B1 21.57 19.19 20.25
226.7736 -41.3215 17.1 -1 USNO-B1 20.66 19.20 19.85
226.7692 -41.3200 10.8 -1 USNO-B1 99.99 18.12 99.99
226.7712 -41.3184 4.4 -1 USNO-B1 17.96 16.67 17.24
226.7679 -41.3154 10.4 -1 USNO-B1 20.19 18.81 19.42
226.7686 -41.3131 16.2 -1 USNO-B1 19.18 17.31 18.14
226.7694 -41.3126 17.1 -1 USNO-B1 17.95 15.95 16.84
226.7682 -41.3219 18.2 -1 GSC2.3 19.28 21.69 99.99
226.7735 -41.3215 16.9 -1 GSC2.3 19.28 20.52 99.99
226.7691 -41.3200 11.0 -1 GSC2.3 18.17 20.30 99.99
226.7650 -41.3200 18.6 -1 GSC2.3 99.99 22.23 99.99
226.7711 -41.3184 4.2 -1 GSC2.3 16.72 17.88 99.99
226.7678 -41.3155 10.3 -1 GSC2.3 18.68 99.99 99.99
226.7678 -41.3155 10.4 -1 GSC2.3 18.79 20.23 99.99
226.7696 -41.3126 17.1 -1 GSC2.3 17.27 18.43 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 2.0
-----------------
Entry 5 in the list of sources is a candidate afterglow for 1191188_g311 with genie
ra=226.78279 (15:07:07.87) dec=-41.35297 (-41:21:10.7) +/- 0.6" mag=17.25+/-0.15
dist=92.4 REFID=2 major=1.9 minor=1.6 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 68.3 arc sec from the BAT position.
This source is near the edge of image (0.924)
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
226.7810 -41.3484 17.3 -1 USNO-B1 17.73 16.36 16.97
226.7810 -41.3532 5.0 -1 USNO-B1 20.63 19.24 19.86 *
226.7774 -41.3555 17.3 -1 USNO-B1 17.70 17.05 17.34
226.7767 -41.3557 19.1 -1 USNO-B1 99.99 16.41 99.99
226.7840 -41.3536 4.0 -1 USNO-B1 99.99 14.38 99.99 *
226.7842 -41.3540 5.4 -1 USNO-B1 16.19 14.20 15.08
226.7840 -41.3567 13.7 -1 USNO-B1 20.27 19.16 19.65
226.7809 -41.3484 17.2 -1 GSC2.3 16.35 17.55 99.99
226.7809 -41.3532 5.3 -1 GSC2.3 19.17 20.59 99.99
226.7838 -41.3531 2.8 -1 GSC2.3 15.74 17.09 99.99 *
226.7773 -41.3555 17.3 -1 GSC2.3 17.97 99.99 99.99
226.7844 -41.3546 7.2 -1 GSC2.3 15.19 16.72 99.99
226.7807 -41.3561 12.7 -1 GSC2.3 99.99 21.05 99.99
226.7839 -41.3567 13.7 -1 GSC2.3 19.22 20.28 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 mag
-----------------
Entry 6 in the list of sources is a candidate afterglow for 1191188_g311 with genie
ra=226.76925 (15:07:04.62) dec=-41.35375 (-41:21:13.5) +/- 0.6" mag=16.75+/-0.14
dist=116.0 REFID=1 major=3.9 minor=3.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 79.0 arc sec from the BAT position.
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
226.7714 -41.3493 17.2 -1 USNO-B1 19.06 17.85 18.39
226.7741 -41.3520 14.7 -1 USNO-B1 20.42 18.93 19.59
226.7712 -41.3532 5.8 -1 USNO-B1 17.37 15.71 16.45
226.7693 -41.3552 5.3 -1 USNO-B1 17.49 16.29 16.82
226.7713 -41.3493 17.0 -1 GSC2.3 17.87 19.07 99.99
226.7740 -41.3519 14.5 -1 GSC2.3 18.81 20.41 99.99
226.7711 -41.3532 5.5 -1 GSC2.3 15.64 17.07 99.99
226.7693 -41.3553 5.5 -1 GSC2.3 16.23 17.34 99.99
226.7759 -41.3561 19.9 -1 GSC2.3 17.29 17.31 99.99
226.7656 -41.3572 15.9 -1 GSC2.3 19.83 21.79 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 3.9
-----------------
Entry 7 in the list of sources is a candidate afterglow for 1191188_g311 with genie
ra=226.75140 (15:07:00.34) dec=-41.33265 (-41:19:57.5) +/- 0.6" mag=15.78+/-0.14
dist=127.6 REFID=7 major=3.6 minor=2.6 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 82.9 arc sec from the BAT position.
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
226.7576 -41.3313 17.3 -1 USNO-B1 21.19 19.76 20.39
226.7529 -41.3349 9.0 -1 USNO-B1 16.34 15.10 15.65
226.7516 -41.3336 3.3 -1 USNO-B1 16.30 15.15 15.66 *
226.7492 -41.3372 17.3 -1 USNO-B1 20.22 18.12 19.06
226.7487 -41.3293 14.2 -1 USNO-B1 20.21 18.41 19.21
226.7450 -41.3336 17.7 -1 USNO-B1 17.78 16.24 16.92
226.7461 -41.3295 18.2 -1 USNO-B1 17.07 14.79 15.80
226.7447 -41.3325 18.2 -1 USNO-B1 20.02 18.23 19.03
226.7574 -41.3314 16.9 -1 GSC2.3 20.02 21.27 99.99
226.7530 -41.3350 9.4 -1 GSC2.3 15.00 16.20 99.99
226.7513 -41.3333 2.5 -1 GSC2.3 15.46 16.43 99.99 *
226.7492 -41.3372 17.4 -1 GSC2.3 18.16 20.19 99.99
226.7489 -41.3293 13.9 -1 GSC2.3 18.66 20.03 99.99
226.7449 -41.3337 18.0 -1 GSC2.3 16.40 17.75 99.99
226.7460 -41.3295 18.4 -1 GSC2.3 14.68 16.81 99.99
226.7444 -41.3323 18.8 -1 GSC2.3 18.87 20.28 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 mag
-----------------
Entry 8 in the list of sources is a candidate afterglow for 1191188_g311 with genie
ra=226.76666 (15:07:04.00) dec=-41.31149 (-41:18:41.4) +/- 0.6" mag=15.87+/-0.14
dist=109.3 REFID=13 major=2.2 minor=1.6 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 91.0 arc sec from the BAT position.
This source is near the edge of image (0.918)
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
226.7679 -41.3154 14.6 -1 USNO-B1 20.19 18.81 19.42
226.7686 -41.3131 7.8 -1 USNO-B1 19.18 17.31 18.14
226.7694 -41.3126 8.6 -1 USNO-B1 17.95 15.95 16.84
226.7598 -41.3132 19.6 -1 USNO-B1 20.12 18.72 19.34
226.7665 -41.3121 2.1 -1 USNO-B1 14.66 12.73 13.59 *
226.7678 -41.3155 14.8 -1 GSC2.3 18.68 99.99 99.99
226.7678 -41.3155 14.8 -1 GSC2.3 18.79 20.23 99.99
226.7696 -41.3126 8.9 -1 GSC2.3 17.27 18.43 99.99
226.7597 -41.3132 19.8 -1 GSC2.3 19.26 20.37 99.99
226.7664 -41.3121 2.3 -1 GSC2.3 12.54 14.13 99.99 *
226.7692 -41.3088 11.9 -1 GSC2.3 99.99 21.75 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 mag
-----------------
Entry 10 in the list of sources is a candidate afterglow for 1191188_g311 with genie
ra=226.76196 (15:07:02.87) dec=-41.35513 (-41:21:18.5) +/- 0.6" mag=17.61+/-0.15
dist=133.5 REFID=3 major=1.8 minor=1.2 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 93.4 arc sec from the BAT position.
This source is near the edge of image (0.991)
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
226.7693 -41.3552 19.8 -1 USNO-B1 17.49 16.29 16.82
226.7625 -41.3563 4.3 -1 USNO-B1 17.74 16.62 17.11 *
226.7693 -41.3553 19.7 -1 GSC2.3 16.23 17.34 99.99
226.7624 -41.3563 4.5 -1 GSC2.3 16.58 17.55 99.99 *
226.7656 -41.3572 12.3 -1 GSC2.3 19.83 21.79 99.99
226.7549 -41.3553 19.0 -1 GSC2.3 99.99 21.43 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 mag
-----------------
Entry 11 in the list of sources is a candidate afterglow for 1191188_g311 with genie
ra=226.74614 (15:06:59.07) dec=-41.32848 (-41:19:42.5) +/- 0.6" mag=17.94+/-0.16
dist=141.7 REFID=6 major=2.8 minor=2.6 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 99.0 arc sec from the BAT position.
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
226.7487 -41.3293 7.4 -1 USNO-B1 20.21 18.41 19.21
226.7450 -41.3336 18.8 -1 USNO-B1 17.78 16.24 16.92
226.7461 -41.3295 3.6 -1 USNO-B1 17.07 14.79 15.80
226.7447 -41.3325 14.9 -1 USNO-B1 20.02 18.23 19.03
226.7421 -41.3328 19.1 -1 USNO-B1 18.56 17.27 17.84
226.7409 -41.3258 17.1 -1 USNO-B1 20.18 19.26 19.67
226.7489 -41.3293 7.9 -1 GSC2.3 18.66 20.03 99.99
226.7449 -41.3337 19.2 -1 GSC2.3 16.40 17.75 99.99
226.7460 -41.3295 3.9 -1 GSC2.3 14.68 16.81 99.99
226.7444 -41.3323 14.4 -1 GSC2.3 18.87 20.28 99.99
226.7421 -41.3325 18.1 -1 GSC2.3 18.11 19.46 99.99
226.7429 -41.3282 8.8 -1 GSC2.3 99.99 21.37 99.99
226.7409 -41.3258 17.2 -1 GSC2.3 19.32 20.19 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 2.8
-----------------
Entry 13 in the list of sources is a candidate afterglow for 1191188_g311 with genie
ra=226.76662 (15:07:03.99) dec=-41.36081 (-41:21:38.9) +/- 0.6" mag=17.02+/-0.15
dist=139.9 REFID=4 major=1.6 minor=1.1 flag=16 (aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 105.1 arc sec from the BAT position.
This source is near the edge of image (1.005)
Found 12 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
226.7625 -41.3563 19.8 -1 USNO-B1 17.74 16.62 17.11
226.7671 -41.3623 5.5 -1 USNO-B1 16.08 14.82 15.38
226.7615 -41.3618 14.3 -1 USNO-B1 18.58 17.50 17.98
226.7655 -41.3627 7.5 -1 USNO-B1 19.13 17.38 18.15
226.7717 -41.3643 18.5 -1 USNO-B1 21.08 18.94 19.89
226.7624 -41.3563 19.7 -1 GSC2.3 16.58 17.55 99.99
226.7656 -41.3572 13.3 -1 GSC2.3 19.83 21.79 99.99
226.7671 -41.3623 5.6 -1 GSC2.3 14.54 15.59 99.99
226.7614 -41.3618 14.5 -1 GSC2.3 17.53 18.56 99.99
226.7714 -41.3641 17.7 -1 GSC2.3 99.99 20.93 99.99
226.7681 -41.3659 18.6 -1 GSC2.3 99.99 21.40 99.99
226.7638 -41.3659 20.0 -1 GSC2.3 99.99 21.33 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 1.6
-----------------
Entry 14 in the list of sources is a candidate afterglow for 1191188_g311 with genie
ra=226.74137 (15:06:57.93) dec=-41.33223 (-41:19:56.0) +/- 0.7" mag=18.26+/-0.16
dist=154.6 REFID=8 major=2.0 minor=1.8 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 110.0 arc sec from the BAT position.
This source is near the edge of image (0.983)
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
226.7450 -41.3336 10.9 -1 USNO-B1 17.78 16.24 16.92
226.7461 -41.3295 16.2 -1 USNO-B1 17.07 14.79 15.80
226.7447 -41.3325 8.9 -1 USNO-B1 20.02 18.23 19.03
226.7421 -41.3328 2.9 -1 USNO-B1 18.56 17.27 17.84 *
226.7416 -41.3337 5.5 -1 USNO-B1 17.55 15.74 16.54
226.7384 -41.3329 8.4 -1 USNO-B1 21.24 19.82 20.45
226.7348 -41.3315 17.9 -1 USNO-B1 19.98 18.48 19.15
226.7449 -41.3337 11.0 -1 GSC2.3 16.40 17.75 99.99
226.7460 -41.3295 15.8 -1 GSC2.3 14.68 16.81 99.99
226.7444 -41.3323 8.3 -1 GSC2.3 18.87 20.28 99.99
226.7421 -41.3325 2.3 -1 GSC2.3 18.11 19.46 99.99 *
226.7414 -41.3339 6.1 -1 GSC2.3 16.19 17.57 99.99
226.7429 -41.3282 15.2 -1 GSC2.3 99.99 21.37 99.99
226.7383 -41.3331 8.9 -1 GSC2.3 99.99 21.32 99.99
226.7347 -41.3316 18.2 -1 GSC2.3 18.28 19.78 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 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
226.7970 -41.3277 9.8 -1 USNO-B1 18.87 18.05 18.41
226.7970 -41.3277 9.8 -1 GSC2.3 18.00 18.89 99.99
The closest star is 9.80" away.
List UVOT sources within 10" of the XRT position:
There are 23556.381 counts in the bkg source region of 6096.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 3.864 counts/pixel (5-sig UL in 4" is 19.73 mag) for 1191188_g311
There are 750.38910 counts in the xrt source region of 199.00000 pixels.
Rate in xrt region with 8 arcsec radius is 3.771 counts/pixel for 1191188_g311
XRT source is too far (64.2988162980023") from center -- do not compute local background.
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 20.29, XRT distances < 5.25",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 1191188_716115157_230911d15h17m54s802453usUT_bkg.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(226.7749,-41.3324,45")
fk5;-circle(226.780218026636,-41.3400970076822,6")
fk5;-circle(226.782180815996,-41.3273895482055,6")
Region file: 1191188_716115157_230911d15h17m54s802453usUT_xrt.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(226.79850,-41.33017,8")
image paragraph message for exposure 2 of trigger 1191188
------ Start for Possible Stand-alone Circular ----
In response to GRB230911 (Swift/BAT trigger 1191188) at 08:47:25 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
280 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 19.2 mag.
Results from the list of sources generated on-board are not available at this
time. No correction has been made for the expected extinction corresponding to
E(B-V) of 0.101.
------- notes for trigger 1191188 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 230911d15h17m56s211263usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1191188
-expid=716115157 -meonly -msg_image
Results from standard processing of UVOT TDRSS data for this trigger should be
available at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/1191188/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 716115157.83782 or about 2023:254:08:52:32 UT
No information found about the number of stars in the star catalog for srclist
region.
Found 15 source(s) in Genie image catalog. Found 12 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.29 mag. Found 280 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
31% of the Genie image region.
Genie image analysis:
Found 23556.4 counts in the large background region of 6096.0 pixels or a rate
of 3.864 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 750.4 counts in the XRT position region of 199.0 pixels or a rate of
3.771 counts/pixel in a radius of 8.0 arcsec. The net count rate (using large
background region) at the XRT position is -0.074 +/- 0.111 (1-sigma) cps. The
3-sigma UL at the XRT position is 0.334 cps or 19.35 mag. The closest Genie
source has ra= 226.7822 dec= -41.3274 mag=17.66 sep=45.24".
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?
716115157 279 U srclist data are not available.
716115157 279 U image found no candidates.
List afterglow candidates for other finding charts.
716114999 121 ? srclist data are not available.
716114999 121 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: u
GRB_DEC: -41.33017
GRB_ERROR: 5.25
GRB_RA: 226.79850
IMAGE_START_TIME: 08:52:32
MAGNITUDE: 19.4
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT