image overlap message for exposure 1 of trigger 1064377
uvot_overlap.pl vrs. 2010-12-20b fem started at 210807d18h51m48s621664usUT
The observation of trigger 1064377 started 2021-08-07T18:45:46.1
Examining file 1064377_g245_uvot_sky_image.fits
The exposure ID is 650054746
The exposure time is 149.857 (seconds)
The filter is WHITE.
The uvot region is centered at (245.0942,-15.9070) with a roll angle of 281.7
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 (245.1320,-15.8980) with a radius of 3.000 arc min
This is 2.250 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 5.50 sq. arc min or 0.19 of the BAT error circle
The XRT error circle is centered at (245.1012,-15.9059) with a radius of 0.078 arc min
This is 0.412 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 1064377
find_uvot_ag.pl vrs. 2020-10-30 fem started at 210807d18h51m50s460447usUT
Observation start time is 2021-08-07T18:45:46.1
Examining file 1064377_g245_uvot_sources_image.fits
The exposure ID is 650054746
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 14 detected source(s) for 1064377_g245
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 245.1000 , -15.9028 with radius 2.66 arc min.
n_usno: 155 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Found 14 entries without IDs and 14 entries that are acceptable afterglow candidates for 1064377_g245.
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.
Magnitude criteria will be applied later.
BAT distances are from RA=245.1320 (16:20:31.68) DEC=-15.8980 (-15:53:52.8)
XRT distances are from RA=245.1012 (16:20:24.29) DEC=-15.9059 (-15:54:21.2)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1064377_g245 with genie
ra=245.09242 (16:20:22.18) dec=-15.92149 (-15:55:17.4) +/- 0.8" mag=18.58+/-0.15
dist=63.8 REFID=1 major=1.5 minor=1.1 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 161.0 arc sec from the BAT position.
Found 4 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
245.0972 -15.9183 20.0 -1 USNO-B1 18.46 17.22 17.77
245.0940 -15.9236 9.4 -1 USNO-B1 17.97 16.79 17.31 *
245.0910 -15.9245 11.8 -1 USNO-B1 17.80 16.32 16.98 *
245.0942 -15.9261 17.8 -1 USNO-B1 19.75 18.91 19.28
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 1 in the list of sources is a candidate afterglow for 1064377_g245 with genie
ra=245.09594 (16:20:23.03) dec=-15.88406 (-15:53:02.6) +/- 0.8" mag=18.12+/-0.15
dist=80.7 REFID=2 major=1.4 minor=1.1 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 134.6 arc sec from the BAT position.
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
245.0987 -15.8858 11.4 -1 USNO-B1 20.42 19.66 20.00 *
245.1007 -15.8816 18.8 -1 USNO-B1 20.16 19.70 19.90
245.0956 -15.8803 13.6 -1 USNO-B1 21.40 19.32 20.25
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 2 in the list of sources is a candidate afterglow for 1064377_g245 with genie
ra=245.08390 (16:20:20.14) dec=-15.88876 (-15:53:19.5) +/- 0.8" mag=19.96+/-0.19
dist=86.0 REFID=3 major=3.2 minor=1.7 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 169.8 arc sec from the BAT position.
This source is near the edge of image (0.868)
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
245.0809 -15.8912 13.7 -1 USNO-B1 17.92 16.73 17.26 *
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 3 in the list of sources is a candidate afterglow for 1064377_g245 with genie
ra=245.07896 (16:20:18.95) dec=-15.89187 (-15:53:30.7) +/- 0.7" mag=16.98+/-0.14
dist=92.1 REFID=4 major=0.7 minor=0.7 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 185.0 arc sec from the BAT position.
This source is near the edge of image (0.941)
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
245.0809 -15.8912 7.1 -1 USNO-B1 17.92 16.73 17.26 *
245.0772 -15.8895 10.7 -1 USNO-B1 20.55 19.32 19.87 *
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 4 in the list of sources is a candidate afterglow for 1064377_g245 with genie
ra=245.10452 (16:20:25.09) dec=-15.90520 (-15:54:18.7) +/- 0.7" mag=15.67+/-0.14
dist=11.8 REFID=5 major=10.7 minor=3.7 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 98.6 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
245.1036 -15.9039 5.6 -1 USNO-B1 18.62 17.22 17.84 *
245.1020 -15.9076 12.2 -1 USNO-B1 19.09 17.81 18.38 *
245.1074 -15.9064 10.7 -1 USNO-B1 21.52 19.70 20.51 *
245.1048 -15.9103 18.2 -1 USNO-B1 20.04 19.44 19.70
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 1064377_g245 with genie
ra=245.09799 (16:20:23.52) dec=-15.90107 (-15:54:03.9) +/- 0.7" mag=16.61+/-0.14
dist=20.6 REFID=6 major=5.7 minor=1.6 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 118.3 arc sec from the BAT position.
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
245.1014 -15.8998 12.8 -1 USNO-B1 20.02 18.84 19.36 *
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 1064377_g245 with genie
ra=245.09631 (16:20:23.11) dec=-15.90593 (-15:54:21.4) +/- 0.7" mag=16.60+/-0.14
dist=16.9 REFID=7 major=5.4 minor=1.9 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 126.8 arc sec from the BAT position.
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
245.0924 -15.9035 16.2 -1 USNO-B1 19.76 17.32 18.40
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 5.4
-----------------
Entry 7 in the list of sources is a candidate afterglow for 1064377_g245 with genie
ra=245.10057 (16:20:24.14) dec=-15.90757 (-15:54:27.3) +/- 0.7" mag=17.21+/-0.14
dist=6.4 REFID=8 major=0.5 minor=0.4 flag=3 (neighbor+blended)
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
245.1036 -15.9039 16.7 -1 USNO-B1 18.62 17.22 17.84
245.1020 -15.9076 4.9 -1 USNO-B1 19.09 17.81 18.38 *
245.1048 -15.9103 17.7 -1 USNO-B1 20.04 19.44 19.70
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 1064377_g245 with genie
ra=245.10050 (16:20:24.12) dec=-15.90894 (-15:54:32.2) +/- 0.7" mag=17.53+/-0.14
dist=11.2 REFID=9 major=0.5 minor=0.4 flag=3 (neighbor+blended)
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
245.1020 -15.9076 7.1 -1 USNO-B1 19.09 17.81 18.38 *
245.1048 -15.9103 15.8 -1 USNO-B1 20.04 19.44 19.70
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 9 in the list of sources is a candidate afterglow for 1064377_g245 with genie
ra=245.10080 (16:20:24.19) dec=-15.90393 (-15:54:14.1) +/- 0.7" mag=14.84+/-0.14
dist=7.2 REFID=10 major=1.6 minor=1.1 flag=3 (neighbor+blended)
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
245.1014 -15.8998 15.0 -1 USNO-B1 20.02 18.84 19.36
245.1036 -15.9039 9.6 -1 USNO-B1 18.62 17.22 17.84 *
245.1020 -15.9076 13.8 -1 USNO-B1 19.09 17.81 18.38
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 10 in the list of sources is a candidate afterglow for 1064377_g245 with genie
ra=245.10053 (16:20:24.13) dec=-15.90605 (-15:54:21.8) +/- 0.7" mag=17.67+/-0.14
dist=2.4 REFID=11 major=0.3 minor=0.3 flag=3 (neighbor+blended)
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
245.1036 -15.9039 13.0 -1 USNO-B1 18.62 17.22 17.84 *
245.1020 -15.9076 7.5 -1 USNO-B1 19.09 17.81 18.38 *
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 11 in the list of sources is a candidate afterglow for 1064377_g245 with genie
ra=245.07538 (16:20:18.09) dec=-15.90608 (-15:54:21.9) +/- 0.8" mag=18.64+/-0.15
dist=89.4 REFID=12 major=1.4 minor=1.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 198.2 arc sec from the BAT position.
Found 7 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
245.0792 -15.9042 14.8 -1 USNO-B1 19.88 18.84 19.30
245.0780 -15.9066 9.3 -1 USNO-B1 17.54 15.98 16.67 *
245.0784 -15.9086 13.8 -1 USNO-B1 20.26 19.31 19.73
245.0782 -15.9098 16.3 -1 USNO-B1 20.08 18.58 19.25
245.0769 -15.9054 5.9 -1 USNO-B1 20.73 18.96 19.75 *
245.0753 -15.9009 18.8 -1 USNO-B1 20.46 18.50 19.37
245.0712 -15.9095 19.1 -1 USNO-B1 18.45 17.43 17.89
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 1064377_g245 with genie
ra=245.12465 (16:20:29.91) dec=-15.90360 (-15:54:12.9) +/- 0.8" mag=17.77+/-0.14
dist=81.6 REFID=13 major=1.7 minor=1.0 flag=16 (aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 32.5 arc sec from the BAT position.
This source is near the edge of image (0.944)
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
245.1199 -15.9053 17.6 -1 USNO-B1 20.57 18.98 19.69 *
245.1241 -15.8994 15.4 -1 USNO-B1 20.59 19.59 20.03 *
245.1254 -15.8982 19.7 -1 USNO-B1 18.98 18.02 18.45 *
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 13 in the list of sources is a candidate afterglow for 1064377_g245 with genie
ra=245.07540 (16:20:18.10) dec=-15.91695 (-15:55:01.0) +/- 0.8" mag=18.06+/-0.15
dist=97.8 REFID=14 major=1.6 minor=1.1 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 207.5 arc sec from the BAT position.
This source is near the edge of image (0.883)
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
245.0797 -15.9180 15.3 -1 USNO-B1 20.34 18.89 19.54 *
245.0731 -15.9204 14.9 -1 USNO-B1 19.84 19.10 19.43 *
245.0721 -15.9198 15.3 -1 USNO-B1 19.82 18.73 19.21 *
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 2 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
245.1036 -15.9039 10.9 -1 USNO-B1 18.62 17.22 17.84
245.1020 -15.9076 6.6 -1 USNO-B1 19.09 17.81 18.38
The closest star is 6.62" away.
List UVOT sources within 20" of the XRT position:
Unmatched source ra=245.10452 (16:20:25.09) dec=-15.90520 (-15:54:18.7) +/- 0.7" mag=15.67+/-0.14 dist=11.8 REFID=5 flag=2
Unmatched source ra=245.09631 (16:20:23.11) dec=-15.90593 (-15:54:21.4) +/- 0.7" mag=16.60+/-0.14 dist=16.9 REFID=7 flag=3
Unmatched source ra=245.10057 (16:20:24.14) dec=-15.90757 (-15:54:27.3) +/- 0.7" mag=17.21+/-0.14 dist=6.4 REFID=8 flag=3
Unmatched source ra=245.10050 (16:20:24.12) dec=-15.90894 (-15:54:32.2) +/- 0.7" mag=17.53+/-0.14 dist=11.2 REFID=9 flag=3
Unmatched source ra=245.10080 (16:20:24.19) dec=-15.90393 (-15:54:14.1) +/- 0.7" mag=14.84+/-0.14 dist=7.2 REFID=10 flag=3
Unmatched source ra=245.10053 (16:20:24.13) dec=-15.90605 (-15:54:21.8) +/- 0.7" mag=17.67+/-0.14 dist=2.4 REFID=11 flag=3
There are 85818.914 counts in the bkg source region of 5661.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 15.160 counts/pixel (5-sig UL in 4" is 19.87 mag) for 1064377_g245
There are 11118.823 counts in the xrt source region of 200.00000 pixels.
Rate in xrt region with 8 arcsec radius is 55.594 counts/pixel for 1064377_g245
There are 20060.627 counts in the xrt_bkg source region of 1026.0000 pixels.
Rate in xrt_bkg region from 15 to 25 arcsec is 19.552 counts/pixel (5-sig UL in 4" is 19.74 mag) for 1064377_g245
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 20.43, 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: 1064377_650054746_210807d18h51m50s460447usUT_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(245.0942,-15.9070,45")
fk5;-circle(245.104523502174,-15.9052033798614,6")
fk5;-circle(245.097986525231,-15.9010696354348,6")
fk5;-circle(245.096306576174,-15.9059333524281,6")
fk5;-circle(245.100568329125,-15.9075702591165,6")
fk5;-circle(245.100504331555,-15.908939912372,6")
fk5;-circle(245.100796918544,-15.9039258659128,6")
fk5;-circle(245.10052905137,-15.9060487314508,6")
Region file: 1064377_650054746_210807d18h51m50s460447usUT_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(245.1012,-15.9059,8")
Region file: 1064377_650054746_210807d18h51m50s460447usUT_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(245.1012,-15.9059,25")
fk5;-circle(245.1012,-15.9059,15")
fk5;-circle(245.104523502174,-15.9052033798614,6")
fk5;-circle(245.097986525231,-15.9010696354348,6")
fk5;-circle(245.096306576174,-15.9059333524281,6")
fk5;-circle(245.100504331555,-15.908939912372,6")
image paragraph message for exposure 1 of trigger 1064377
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.
6 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 GRB210807 (Swift/BAT trigger 1064377) at 18:41:40 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 218 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 0.335.
------- notes for trigger 1064377 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 210807d18h51m52s969218usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1064377
-expid=650054746 -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/1064377/
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 650054746.14452 or about 2021:219:18:45:41 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 14 source(s) in Genie image catalog. 6 source(s) are within 20.0" of the
xrt position. Found 14 Genie image source(s) without IDs. There are 0 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.43 mag. Found 151 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 14% of the Genie image region.
Found 6 Genie source(s) within 20.0" of the XRT position. The brightest such
source has ra= 245.1005 dec= -15.9061 mag=17.67 sep=2.38". The closest Genie
source has ra= 245.1005 dec= -15.9061 mag=17.67 sep=2.38".
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 218 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 16:20:24.13 = 245.10053
DEC(J2000) = -15:54:21.8 = -15.90605
with a 90%-confidence error radius of about 0.75 arc sec. This position is 2.38
arc sec. from the center of the XRT error circle. The estimated magnitude is
17.67 with a 1-sigma error of about 0.14. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.335.
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?
650054746 218 WHITE srclist data are not available.
650054746 218 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------