image overlap message for exposure 1 of trigger 1093693
uvot_overlap.pl vrs. 2010-12-20b fem started at 220118d12h18m13s094863usUT
The observation of trigger 1093693 started 2022-01-18T12:09:04.8
Examining file 1093693_g340_uvot_sky_image.fits
The exposure ID is 664200544
The exposure time is 149.868 (seconds)
The filter is WHITE.
The uvot region is centered at (245.1415,-15.8465) with a roll angle of 103.9
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 (245.1360,-15.8460) with a radius of 3.000 arc min
This is 0.321 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 (245.1369,-15.8272) with a radius of 0.078 arc min
This is 1.186 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 1093693
find_uvot_ag.pl vrs. 2020-10-30 fem started at 220118d12h18m14s612110usUT
Observation start time is 2022-01-18T12:09:04.8
Examining file 1093693_g340_uvot_sources_image.fits
The exposure ID is 664200544
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 10 detected source(s) for 1093693_g340
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 245.1385 , -15.8511 with radius 2.63 arc min.
n_usno: 130 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Found 10 entries without IDs and 10 entries that are acceptable afterglow candidates for 1093693_g340.
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=245.1360 (16:20:32.64) DEC=-15.8460 (-15:50:45.6)
XRT distances are from RA=245.1369 (16:20:32.86) DEC=-15.8272 (-15:49:37.9)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1093693_g340 with genie
ra=245.14221 (16:20:34.13) dec=-15.87076 (-15:52:14.7) +/- 1.0" mag=19.99+/-0.26
dist=157.9 REFID=1 major=0.9 minor=0.7 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 91.7 arc sec from the BAT position.
Found 2 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
245.1388 -15.8665 19.3 -1 USNO-B1 18.94 17.84 18.33
245.1444 -15.8684 11.4 -1 USNO-B1 17.40 15.85 16.54 *
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 1093693_g340 with genie
ra=245.14043 (16:20:33.70) dec=-15.83144 (-15:49:53.2) +/- 0.7" mag=15.94+/-0.14
dist=19.6 REFID=2 major=3.3 minor=1.2 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 54.6 arc sec from the BAT position.
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 3.3
-----------------
Entry 2 in the list of sources is a candidate afterglow for 1093693_g340 with genie
ra=245.13964 (16:20:33.51) dec=-15.83522 (-15:50:06.8) +/- 0.7" mag=17.16+/-0.14
dist=30.4 REFID=3 major=1.3 minor=0.3 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 40.8 arc sec from the BAT position.
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable minor profile of 0.3
-----------------
Entry 3 in the list of sources is a candidate afterglow for 1093693_g340 with genie
ra=245.14253 (16:20:34.21) dec=-15.83823 (-15:50:17.6) +/- 0.7" mag=17.00+/-0.14
dist=44.3 REFID=4 major=3.1 minor=1.1 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 36.0 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
245.1399 -15.8428 18.7 -1 USNO-B1 19.70 18.42 18.99
245.1407 -15.8426 16.9 -1 USNO-B1 99.99 19.31 99.99
245.1455 -15.8419 16.6 -1 USNO-B1 20.24 18.77 19.42
245.1466 -15.8368 15.2 -1 USNO-B1 18.05 16.99 17.46
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 3.1
-----------------
Entry 4 in the list of sources is a candidate afterglow for 1093693_g340 with genie
ra=245.13822 (16:20:33.17) dec=-15.83982 (-15:50:23.3) +/- 0.8" mag=17.69+/-0.15
dist=45.7 REFID=5 major=0.6 minor=0.5 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 23.5 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
245.1399 -15.8428 12.2 -1 USNO-B1 19.70 18.42 18.99 *
245.1407 -15.8426 13.1 -1 USNO-B1 99.99 19.31 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 1093693_g340 with genie
ra=245.13827 (16:20:33.18) dec=-15.84132 (-15:50:28.7) +/- 0.7" mag=16.66+/-0.14
dist=51.0 REFID=6 major=0.6 minor=0.5 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 18.6 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
245.1411 -15.8450 16.6 -1 USNO-B1 20.51 19.27 19.82
245.1399 -15.8428 7.8 -1 USNO-B1 19.70 18.42 18.99 *
245.1407 -15.8426 9.5 -1 USNO-B1 99.99 19.31 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 1093693_g340 with genie
ra=245.16239 (16:20:38.97) dec=-15.83659 (-15:50:11.7) +/- 0.8" mag=17.62+/-0.15
dist=94.5 REFID=7 major=1.4 minor=1.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 97.5 arc sec from the BAT position.
This source is near the edge of image (0.911)
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
245.1671 -15.8376 16.7 -1 USNO-B1 99.99 18.29 99.99 *
245.1673 -15.8379 17.7 -1 USNO-B1 17.93 16.82 17.31 *
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 7 in the list of sources is a candidate afterglow for 1093693_g340 with genie
ra=245.11453 (16:20:27.49) dec=-15.84408 (-15:50:38.7) +/- 0.9" mag=19.50+/-0.20
dist=98.4 REFID=8 major=1.0 minor=1.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 74.7 arc sec from the BAT position.
This source is near the edge of image (0.936)
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
245.1186 -15.8456 15.1 -1 USNO-B1 20.59 19.54 20.01 *
245.1120 -15.8452 9.7 -1 USNO-B1 14.94 13.86 14.33 *
245.1116 -15.8428 11.2 -1 USNO-B1 19.27 17.71 18.40 *
245.1114 -15.8428 11.9 -1 USNO-B1 18.66 18.10 18.35 *
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 8 in the list of sources is a candidate afterglow for 1093693_g340 with genie
ra=245.15358 (16:20:36.86) dec=-15.85498 (-15:51:17.9) +/- 0.9" mag=19.82+/-0.24
dist=115.5 REFID=9 major=1.1 minor=0.9 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 68.9 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
245.1562 -15.8563 10.2 -1 USNO-B1 20.73 99.99 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 9 in the list of sources is a candidate afterglow for 1093693_g340 with genie
ra=245.14424 (16:20:34.62) dec=-15.86118 (-15:51:40.2) +/- 0.8" mag=18.98+/-0.17
dist=124.9 REFID=10 major=1.2 minor=1.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 61.6 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
245.1408 -15.8596 13.1 -1 USNO-B1 19.38 17.72 18.46 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
Found 1 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
245.1336 -15.8285 12.2 -1 USNO-B1 20.83 19.78 20.24
The closest star is 12.24" away.
List UVOT sources within 20" of the XRT position:
Unmatched source ra=245.14043 (16:20:33.70) dec=-15.83144 (-15:49:53.2) +/- 0.7" mag=15.94+/-0.14 dist=19.6 REFID=2 flag=3
There are 2.1301770E+05 counts in the bkg source region of 5927.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 35.940 counts/pixel (5-sig UL in 4" is 19.41 mag) for 1093693_g340
There are 7320.3003 counts in the xrt source region of 198.00000 pixels.
Rate in xrt region with 8 arcsec radius is 36.971 counts/pixel for 1093693_g340
XRT source is too far (71.2829327296777") 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 19.96, 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: 1093693_664200544_220118d12h18m14s612110usUT_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(245.1415,-15.8465,45")
fk5;-circle(245.139639547858,-15.8352169709691,6")
fk5;-circle(245.142532161875,-15.8382335799231,6")
fk5;-circle(245.138217307799,-15.8398194088146,6")
fk5;-circle(245.138267890416,-15.8413188975563,6")
Region file: 1093693_664200544_220118d12h18m14s612110usUT_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(245.1369,-15.8272,8")
image paragraph message for exposure 1 of trigger 1093693
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.
1 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 GRB220118 (Swift/BAT trigger 1093693) at 12:03:23 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 312 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 0.388.
------- notes for trigger 1093693 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 220118d12h18m20s310461usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1093693
-expid=664200544 -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/1093693/
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 664200544.8412 or about 2022:018:12:08:59 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 10 source(s) in Genie image catalog. 1 source(s) are within 20.0" of the
xrt position. Found 10 Genie image source(s) without IDs. There are 0 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
19.96 mag. Found 126 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 12% of the Genie image region.
Found 1 Genie source(s) within 20.0" of the XRT position. The brightest such
source has ra= 245.1404 dec= -15.8314 mag=15.94 sep=19.56". The closest Genie
source has ra= 245.1404 dec= -15.8314 mag=15.94 sep=19.56".
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?
664200544 312 WHITE srclist data are not available.
664200544 312 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------