image overlap message for exposure 2 of trigger 1205110
uvot_overlap.pl vrs. 2010-12-20b fem started at 231228d09h07m24s237753usUT
The observation of trigger 1205110 started 2023-12-28T09:01:46.9
Examining file 1205110_g354_uvot_sky_image.fits
The exposure ID is 725446906
The exposure time is 187.857 (seconds)
The filter is U.
*** Warning -- no aspect solution was applied to the image.
consequently the calculated overlaps are questionable.
*** Warning -- found 15263 null pixels in the image.
The uvot region is centered at (300.3172,35.1339) with a roll angle of 204.3
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 (300.3470,35.1370) with a radius of 3.000 arc min
This is 1.476 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 7.04 sq. arc min or 0.25 of the BAT error circle
The XRT error circle is centered at (300.3177,35.1379) with a radius of 0.087 arc min
This is 0.241 arc min from the center of the uvot region
The area of the XRT error circle is 0.024 sq. arc min
The UVOT/XRT overlap is 0.00 sq. arc min or 0.00 of the XRT error circle
image afterglow message for exposure 2 of trigger 1205110
find_uvot_ag.pl vrs. 2023-04-25a fem started at 231228d09h07m25s166453usUT
Observation start time is 2023-12-28T09:01:46.9
Examining file 1205110_g354_uvot_sources_image.fits
The exposure ID is 725446906
The exposure is 187.857 sec.
The bin size is 2 pixels
The filter is U
There are 2 detected source(s) for 1205110_g354
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 300.3261 , 35.1128 with radius 2.00 arc min.
n_usno: 199 n_gsc: 258
Bright star catalog has no entries brighter than 12 mag
Found 2 entries without IDs and 2 entries that are acceptable afterglow candidates for 1205110_g354.
Acceptable entries have no ID, XRT distances < 13", 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=300.3470 (20:01:23.28) DEC=35.1370 (+35:08:13.2)
XRT distances are from RA=300.3177 (20:01:16.25) DEC=35.1379 (+35:08:16.4)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1205110_g354 with genie
ra=300.31330 (20:01:15.19) dec=35.10404 (+35:06:14.5) +/- 1.0" mag=19.56+/-0.26
dist=122.6 REFID=1 major=1.4 minor=0.6 flag=16 (aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 154.7 arc sec from the BAT position.
This source is near the edge of image (0.977)
Found 16 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
300.3164 35.1082 17.6 -1 USNO-B1 99.99 18.16 99.99 *
300.3179 35.1065 16.1 -1 USNO-B1 99.99 18.32 99.99 *
300.3160 35.1055 9.7 -1 USNO-B1 99.99 18.15 99.99 *
300.3135 35.1045 1.9 -1 USNO-B1 18.62 16.39 17.38 *
300.3150 35.1027 6.8 -1 USNO-B1 19.12 15.88 17.32 *
300.3093 35.1050 12.4 -1 USNO-B1 18.09 16.46 17.18 *
300.3099 35.1000 17.8 -1 USNO-B1 18.95 16.77 17.74 *
300.3074 35.1013 20.0 -1 USNO-B1 19.36 17.55 18.36 *
300.3162 35.1083 17.6 -1 GSC2.3 19.67 99.99 99.99 *
300.3178 35.1064 15.9 -1 GSC2.3 19.77 99.99 99.99 *
300.3171 35.1029 12.0 -1 GSC2.3 99.99 99.99 99.99 *
300.3135 35.1045 2.0 -1 GSC2.3 17.43 19.40 99.99 *
300.3149 35.1027 6.7 -1 GSC2.3 16.30 19.76 99.99 *
300.3119 35.1041 4.2 -1 GSC2.3 99.99 99.99 99.99 *
300.3093 35.1049 12.2 -1 GSC2.3 17.06 18.77 99.99 *
300.3101 35.1001 17.1 -1 GSC2.3 18.53 19.93 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 1205110_g354 with genie
ra=300.33900 (20:01:21.36) dec=35.12156 (+35:07:17.6) +/- 0.8" mag=18.47+/-0.18
dist=86.0 REFID=2 major=2.5 minor=0.5 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 60.4 arc sec from the BAT position.
This source is near the edge of image (0.921)
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
300.3384 35.1232 6.2 -1 USNO-B1 18.24 16.33 17.18 *
300.3408 35.1212 5.4 -1 USNO-B1 99.99 18.02 99.99 *
300.3428 35.1209 11.4 -1 USNO-B1 19.12 16.29 17.54 *
300.3448 35.1202 17.7 -1 USNO-B1 18.02 16.46 17.15 *
300.3346 35.1229 13.9 -1 GSC2.3 99.99 99.99 99.99 *
300.3384 35.1232 6.3 -1 GSC2.3 17.02 18.96 99.99 *
300.3407 35.1212 5.1 -1 GSC2.3 19.41 99.99 99.99 *
300.3427 35.1209 11.0 -1 GSC2.3 16.95 20.05 99.99 *
300.3448 35.1202 17.7 -1 GSC2.3 17.11 18.58 99.99 *
300.3441 35.1252 19.9 -1 GSC2.3 99.99 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 11 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
300.3205 35.1331 19.1 -1 USNO-B1 19.27 17.73 18.42
300.3202 35.1371 7.8 -1 USNO-B1 19.07 16.54 17.66
300.3180 35.1386 2.5 -1 USNO-B1 19.12 16.74 17.80
300.3220 35.1405 15.6 -1 USNO-B1 99.99 18.04 99.99
300.3227 35.1415 19.8 -1 USNO-B1 15.29 14.08 14.62
300.3206 35.1331 19.2 -1 GSC2.3 18.70 20.03 99.99
300.3192 35.1357 9.2 -1 GSC2.3 20.20 99.99 99.99
300.3149 35.1348 13.9 -1 GSC2.3 19.79 99.99 99.99
300.3202 35.1372 7.7 -1 GSC2.3 17.74 19.80 99.99
300.3180 35.1385 2.5 -1 GSC2.3 18.01 19.79 99.99
300.3227 35.1415 19.6 -1 GSC2.3 14.03 15.13 99.99
The closest star is 2.47" away.
List UVOT sources within 20" of the XRT position:
There are 6069.8809 counts in the bkg source region of 1814.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 3.346 counts/pixel (5-sig UL in 4" is 19.50 mag) for 1205110_g354
There are 0.0000000 counts in the xrt source region of 0.0000000 pixels.
There are 0.0000000 counts in the xrt_bkg source region of 0.0000000 pixels.
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 20.05, XRT distances < 13",
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: 1205110_725446906_231228d09h07m25s166453usUT_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(300.3172,35.1339,45")
Region file: 1205110_725446906_231228d09h07m25s166453usUT_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(300.3177,+35.1379,8")
Region file: 1205110_725446906_231228d09h07m25s166453usUT_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(300.3177,+35.1379,25")
fk5;-circle(300.3177,+35.1379,15")
image paragraph message for exposure 2 of trigger 1205110
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.
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
------ Start for Possible Stand-alone Circular ----
In response to GRB231228 (Swift/BAT trigger 1205110) at 08:55:51 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 188 seconds with the U filter starting
322 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
large, but uncertain, extinction expected.
------- notes for trigger 1205110 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 231228d09h07m26s753460usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1205110
-expid=725446906 -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/1205110/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
Unreliable extinction found for bat position. Unreliable extinction found for
xrt position. XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 725446906.90554 or about 2023:362:09:01:41 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 2 source(s) in Genie image catalog. Found 2 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 20.05 mag. Found 258 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 44% of the
Genie image region. The Genie image is INCOMPLETE with 15263 null pixels.
The closest Genie source has ra= 300.3390 dec= 35.1216 mag=18.47 sep=85.99".
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?
725446906 322 U srclist data are not available.
725446906 322 U image found no candidates.
List afterglow candidates for other finding charts.
725446748 164 ? srclist data are not available.
725446748 164 WHITE image found no candidates.
------- Tokens for Quick GCN -------