image overlap message for exposure 1 of trigger 1192234
uvot_overlap.pl vrs. 2010-12-20b fem started at 230916d02h59m52s844650usUT
The observation of trigger 1192234 started 2023-09-16T02:49:18.8
Examining file 1192234_g174_uvot_sky_image.fits
The exposure ID is 716525358
The exposure time is 149.868 (seconds)
The filter is WHITE.
*** Warning -- no aspect solution was applied to the image.
consequently the calculated overlaps are questionable.
The uvot region is centered at (244.7715,-15.8556) with a roll angle of 278.1
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 (244.8050,-15.8850) with a radius of 3.000 arc min
This is 2.614 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 4.35 sq. arc min or 0.15 of the BAT error circle
The XRT error circle is centered at (244.7759,-15.8546) with a radius of 0.078 arc min
This is 0.259 arc min from the center of the uvot region
The area of the XRT error circle is 0.019 sq. arc min
The UVOT/XRT overlap is 0.019 sq. arc min or 1.00 of the XRT error circle
image afterglow message for exposure 1 of trigger 1192234
find_uvot_ag.pl vrs. 2023-04-25a fem started at 230916d02h59m54s119764usUT
Observation start time is 2023-09-16T02:49:18.8
Examining file 1192234_g174_uvot_sources_image.fits
The exposure ID is 716525358
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 19 detected source(s) for 1192234_g174
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 244.7701 , -15.8638 with radius 2.83 arc min.
n_usno: 199 n_gsc: 197
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 10.16912
RA DEC Mag Color
bright star 0: 244.75159 (16:19:00.38) -15.84866 (-15:50:55.2) 10.17 USNO-V
Found 19 entries without IDs and 13 entries that are acceptable afterglow candidates for 1192234_g174.
Acceptable entries have no ID, XRT distances < 11.75", 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=244.8050 (16:19:13.20) DEC=-15.8850 (-15:53:06.0)
XRT distances are from RA=244.7759 (16:19:06.22) DEC=-15.8546 (-15:51:16.6)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1192234_g174 with genie
ra=244.76374 (16:19:03.30) dec=-15.87690 (-15:52:36.8) +/- 0.8" mag=19.27+/-0.17
dist=90.6 REFID=1 major=0.5 minor=0.4 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 145.8 arc sec from the BAT position.
This source is near the edge of image (0.987)
Found 5 entries in star catalog(s) within 20.0" of the candidate.
printing all entries
(Entries within 12 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
244.7636 -15.8748 7.7 -1 USNO-B1 19.71 18.48 19.03 *
244.7602 -15.8756 13.0 -1 USNO-B1 21.11 19.68 20.31 *
244.7635 -15.8747 8.0 -1 GSC2.3 18.51 19.73 99.99 *
244.7602 -15.8757 13.1 -1 GSC2.3 19.80 20.97 99.99 *
244.7671 -15.8797 15.4 -1 GSC2.3 19.95 99.99 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1192234_g174 with genie
ra=244.79868 (16:19:11.68) dec=-15.85075 (-15:51:02.7) +/- 0.7" mag=17.22+/-0.14
dist=80.1 REFID=2 major=2.9 minor=0.9 flag=16 (aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 125.2 arc sec from the BAT position.
This source is near the edge of image (0.852)
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
244.8020 -15.8496 12.2 -1 USNO-B1 21.68 19.67 20.56 *
244.8011 -15.8496 9.4 -1 GSC2.3 20.18 21.81 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
-----------------
Entry 2 in the list of sources is a candidate afterglow for 1192234_g174 with genie
ra=244.76521 (16:19:03.65) dec=-15.87138 (-15:52:17.0) +/- 0.8" mag=18.45+/-0.15
dist=70.8 REFID=3 major=1.4 minor=0.5 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 146.3 arc sec from the BAT position.
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
244.7659 -15.8699 5.7 -1 USNO-B1 17.29 16.12 16.64 *
244.7636 -15.8748 13.4 -1 USNO-B1 19.71 18.48 19.03 *
244.7659 -15.8699 5.6 -1 GSC2.3 16.13 17.23 99.99 *
244.7635 -15.8747 13.2 -1 GSC2.3 18.51 19.73 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 3 in the list of sources is a candidate afterglow for 1192234_g174 with genie
ra=244.76895 (16:19:04.55) dec=-15.86370 (-15:51:49.3) +/- 0.8" mag=18.07+/-0.15
dist=40.7 REFID=4 major=2.8 minor=0.8 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 146.5 arc sec from the BAT position.
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
244.7662 -15.8653 11.1 -1 USNO-B1 18.85 16.83 17.73 *
244.7645 -15.8647 15.8 -1 USNO-B1 19.54 18.46 18.94
244.7663 -15.8653 10.9 -1 GSC2.3 16.98 18.63 99.99 *
244.7645 -15.8647 16.0 -1 GSC2.3 18.56 19.65 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 4 in the list of sources is a candidate afterglow for 1192234_g174 with genie
ra=244.76834 (16:19:04.40) dec=-15.86626 (-15:51:58.5) +/- 0.8" mag=17.84+/-0.14
dist=49.5 REFID=5 major=3.6 minor=1.1 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 143.8 arc sec from the BAT position.
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
244.7662 -15.8653 8.2 -1 USNO-B1 18.85 16.83 17.73 *
244.7645 -15.8647 14.3 -1 USNO-B1 19.54 18.46 18.94
244.7659 -15.8699 15.7 -1 USNO-B1 17.29 16.12 16.64
244.7663 -15.8653 8.0 -1 GSC2.3 16.98 18.63 99.99 *
244.7645 -15.8647 14.6 -1 GSC2.3 18.56 19.65 99.99
244.7659 -15.8699 15.8 -1 GSC2.3 16.13 17.23 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 5 in the list of sources is a candidate afterglow for 1192234_g174 with genie
ra=244.76995 (16:19:04.79) dec=-15.86035 (-15:51:37.3) +/- 0.7" mag=17.07+/-0.14
dist=29.2 REFID=6 major=6.3 minor=1.3 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 150.4 arc sec from the BAT position.
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
244.7733 -15.8589 12.9 -1 USNO-B1 19.45 18.73 19.05 *
244.7733 -15.8589 12.7 -1 GSC2.3 18.40 19.55 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 6 in the list of sources is a candidate afterglow for 1192234_g174 with genie
ra=244.77279 (16:19:05.47) dec=-15.85696 (-15:51:25.0) +/- 0.8" mag=18.03+/-0.15
dist=13.7 REFID=7 major=1.3 minor=1.1 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 150.4 arc sec from the BAT position.
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
244.7733 -15.8589 7.2 -1 USNO-B1 19.45 18.73 19.05 *
244.7759 -15.8568 10.9 -1 USNO-B1 21.35 19.70 20.43 *
244.7684 -15.8541 18.3 -1 USNO-B1 20.90 18.76 19.71
244.7735 -15.8527 15.7 -1 USNO-B1 19.71 18.68 19.14
244.7733 -15.8589 7.2 -1 GSC2.3 18.40 19.55 99.99 *
244.7753 -15.8568 8.7 -1 GSC2.3 19.79 21.49 99.99 *
244.7684 -15.8540 18.6 -1 GSC2.3 18.86 20.97 99.99
244.7735 -15.8527 15.5 -1 GSC2.3 18.76 20.01 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 7 in the list of sources is a candidate afterglow for 1192234_g174 with genie
ra=244.77554 (16:19:06.13) dec=-15.85435 (-15:51:15.6) +/- 0.8" mag=18.32+/-0.15
dist=1.5 REFID=8 major=0.7 minor=0.5 flag=3 (neighbor+blended)
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
244.7733 -15.8589 18.0 -1 USNO-B1 19.45 18.73 19.05
244.7759 -15.8568 8.9 -1 USNO-B1 21.35 19.70 20.43 *
244.7735 -15.8527 9.4 -1 USNO-B1 19.71 18.68 19.14 *
244.7786 -15.8551 10.9 -1 USNO-B1 21.23 19.64 20.35 *
244.7733 -15.8589 18.1 -1 GSC2.3 18.40 19.55 99.99
244.7753 -15.8568 8.8 -1 GSC2.3 19.79 21.49 99.99 *
244.7735 -15.8527 9.1 -1 GSC2.3 18.76 20.01 99.99 *
244.7785 -15.8551 10.7 -1 GSC2.3 19.84 21.09 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 8 in the list of sources is a candidate afterglow for 1192234_g174 with genie
ra=244.77433 (16:19:05.84) dec=-15.85554 (-15:51:19.9) +/- 0.7" mag=17.23+/-0.14
dist=6.4 REFID=9 major=4.3 minor=1.3 flag=3 (neighbor+blended)
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
244.7733 -15.8589 12.5 -1 USNO-B1 19.45 18.73 19.05 *
244.7759 -15.8568 7.2 -1 USNO-B1 21.35 19.70 20.43 *
244.7735 -15.8527 10.8 -1 USNO-B1 19.71 18.68 19.14 *
244.7786 -15.8551 14.9 -1 USNO-B1 21.23 19.64 20.35
244.7733 -15.8589 12.6 -1 GSC2.3 18.40 19.55 99.99 *
244.7753 -15.8568 5.6 -1 GSC2.3 19.79 21.49 99.99 *
244.7782 -15.8596 19.6 -1 GSC2.3 20.18 99.99 99.99
244.7735 -15.8527 10.5 -1 GSC2.3 18.76 20.01 99.99 *
244.7785 -15.8551 14.6 -1 GSC2.3 19.84 21.09 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 12 in the list of sources is a candidate afterglow for 1192234_g174 with genie
ra=244.76786 (16:19:04.29) dec=-15.87027 (-15:52:13.0) +/- 0.8" mag=17.88+/-0.15
dist=62.9 REFID=13 major=3.9 minor=0.9 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 139.1 arc sec from the BAT position.
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
244.7662 -15.8653 18.8 -1 USNO-B1 18.85 16.83 17.73
244.7659 -15.8699 7.0 -1 USNO-B1 17.29 16.12 16.64 *
244.7719 -15.8718 15.2 -1 USNO-B1 21.27 19.58 20.33
244.7663 -15.8653 18.8 -1 GSC2.3 16.98 18.63 99.99
244.7659 -15.8699 7.0 -1 GSC2.3 16.13 17.23 99.99 *
244.7719 -15.8719 15.0 -1 GSC2.3 19.68 21.48 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 16 in the list of sources is a candidate afterglow for 1192234_g174 with genie
ra=244.78623 (16:19:08.69) dec=-15.85698 (-15:51:25.1) +/- 0.8" mag=18.90+/-0.16
dist=36.8 REFID=17 major=1.1 minor=0.5 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 120.0 arc sec from the BAT position.
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
244.7843 -15.8541 12.4 -1 USNO-B1 99.99 19.36 99.99 *
244.7887 -15.8570 8.6 -1 USNO-B1 20.61 19.27 19.86 *
244.7903 -15.8600 17.8 -1 USNO-B1 18.47 16.81 17.54
244.7843 -15.8541 12.2 -1 GSC2.3 19.51 21.68 99.99 *
244.7886 -15.8569 8.2 -1 GSC2.3 18.99 20.83 99.99 *
244.7902 -15.8600 17.5 -1 GSC2.3 16.83 18.16 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 17 in the list of sources is a candidate afterglow for 1192234_g174 with genie
ra=244.76420 (16:19:03.41) dec=-15.87435 (-15:52:27.6) +/- 0.8" mag=18.33+/-0.15
dist=81.8 REFID=18 major=1.5 minor=0.4 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 146.4 arc sec from the BAT position.
This source is near the edge of image (0.883)
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
244.7659 -15.8699 16.9 -1 USNO-B1 17.29 16.12 16.64 *
244.7636 -15.8748 2.5 -1 USNO-B1 19.71 18.48 19.03 *
244.7602 -15.8756 14.5 -1 USNO-B1 21.11 19.68 20.31 *
244.7659 -15.8699 16.9 -1 GSC2.3 16.13 17.23 99.99 *
244.7635 -15.8747 2.6 -1 GSC2.3 18.51 19.73 99.99 *
244.7602 -15.8757 14.7 -1 GSC2.3 19.80 20.97 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
-----------------
Entry 18 in the list of sources is a candidate afterglow for 1192234_g174 with genie
ra=244.76354 (16:19:03.25) dec=-15.87546 (-15:52:31.6) +/- 0.8" mag=19.17+/-0.16
dist=86.4 REFID=19 major=0.6 minor=0.4 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 147.6 arc sec from the BAT position.
This source is near the edge of image (0.940)
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
244.7636 -15.8748 2.5 -1 USNO-B1 19.71 18.48 19.03 *
244.7602 -15.8756 11.5 -1 USNO-B1 21.11 19.68 20.31 *
244.7635 -15.8747 2.8 -1 GSC2.3 18.51 19.73 99.99 *
244.7602 -15.8757 11.6 -1 GSC2.3 19.80 20.97 99.99 *
244.7671 -15.8797 19.6 -1 GSC2.3 19.95 99.99 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
Found 9 entries in star catalog(s) within 20" of the XRT position.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
244.7733 -15.8589 17.8 -1 USNO-B1 19.45 18.73 19.05
244.7759 -15.8568 7.9 -1 USNO-B1 21.35 19.70 20.43
244.7735 -15.8527 10.9 -1 USNO-B1 19.71 18.68 19.14
244.7786 -15.8551 9.5 -1 USNO-B1 21.23 19.64 20.35
244.7733 -15.8589 17.9 -1 GSC2.3 18.40 19.55 99.99
244.7753 -15.8568 8.2 -1 GSC2.3 19.79 21.49 99.99
244.7782 -15.8596 19.5 -1 GSC2.3 20.18 99.99 99.99
244.7735 -15.8527 10.7 -1 GSC2.3 18.76 20.01 99.99
244.7785 -15.8551 9.3 -1 GSC2.3 19.84 21.09 99.99
The closest star is 7.89" away.
List UVOT sources within 20" of the XRT position:
Unmatched source ra=244.77279 (16:19:05.47) dec=-15.85696 (-15:51:25.0) +/- 0.8" mag=18.03+/-0.15 dist=13.7 REFID=7 flag=3
Unmatched source ra=244.77554 (16:19:06.13) dec=-15.85435 (-15:51:15.6) +/- 0.8" mag=18.32+/-0.15 dist=1.5 REFID=8 flag=3
Unmatched source ra=244.77433 (16:19:05.84) dec=-15.85554 (-15:51:19.9) +/- 0.7" mag=17.23+/-0.14 dist=6.4 REFID=9 flag=3
There are 1.1786627E+05 counts in the bkg source region of 5724.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 20.592 counts/pixel (5-sig UL in 4" is 19.71 mag) for 1192234_g174
There are 5584.9570 counts in the xrt source region of 201.00000 pixels.
Rate in xrt region with 8 arcsec radius is 27.786 counts/pixel for 1192234_g174
There are 25360.156 counts in the xrt_bkg source region of 1191.0000 pixels.
Rate in xrt_bkg region from 15 to 25 arcsec is 21.293 counts/pixel (5-sig UL in 4" is 19.69 mag) for 1192234_g174
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 20.26, XRT distances < 11.75",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Results are questionable because aspect solution FAILED.
Region file: 1192234_716525358_230916d02h59m54s119764usUT_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(244.7715,-15.8556,45")
fk5;-circle(244.76895284209,-15.8637043300242,6")
fk5;-circle(244.768342306467,-15.8662576659706,6")
fk5;-circle(244.769948455935,-15.8603520033068,6")
fk5;-circle(244.772793694087,-15.8569564889181,6")
fk5;-circle(244.775542915859,-15.8543464735938,6")
fk5;-circle(244.77433102047,-15.8555373150556,6")
Region file: 1192234_716525358_230916d02h59m54s119764usUT_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(244.7759,-15.8546,8")
Region file: 1192234_716525358_230916d02h59m54s119764usUT_xrt_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(244.7759,-15.8546,25")
fk5;-circle(244.7759,-15.8546,15")
fk5;-circle(244.769948455935,-15.8603520033068,6")
fk5;-circle(244.772793694087,-15.8569564889181,6")
image paragraph message for exposure 1 of trigger 1192234
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no aspect solution
SRCLIST PROBLEM: no srclist afterglow info
See notes for more details.
3 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 GRB230916 (Swift/BAT trigger 1192234) at 02:46:23 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 142 seconds after the BAT trigger. No credible afterglow candidate has
been found in the initial data products. The 2.7'x2.7' sub-image processing
FAILED because of no aspect solution. 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 0.279.
------- notes for trigger 1192234 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 230916d02h59m56s138806usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1192234
-expid=716525358 -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/1192234/
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 716525358.81798 or about 2023:259:02:49:13 UT
No information found about the number of stars in the star catalog for srclist
region.
THERE IS NO ASPECT SOLUTION for the image data.
Found 19 source(s) in Genie image catalog. 3 source(s) are within 20.0" of the
xrt position. Found 19 Genie image source(s) without IDs. There are 0 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.26 mag. Found 195 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 16% of the Genie image region.
Found 3 Genie source(s) within 20.0" of the XRT position. The brightest such
source has ra= 244.7755 dec= -15.8544 mag=18.32 sep=1.54". The closest Genie
source has ra= 244.7755 dec= -15.8544 mag=18.32 sep=1.54".
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 142 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 16:19:06.13 = 244.77554
DEC(J2000) = -15:51:15.7 = -15.85435
with a 90%-confidence error radius of about 0.76 arc sec. This position is 1.54
arc sec. from the center of the XRT error circle. The estimated magnitude is
18.32 with a 1-sigma error of about 0.15. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.279.
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?
716525358 142 WHITE srclist data are not available.
716525358 142 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------