image overlap message for exposure 1 of trigger 1209403
uvot_overlap.pl vrs. 2010-12-20b fem started at 240117d16h44m53s872219usUT
The observation of trigger 1209403 started 2024-01-17T16:37:49.8
Examining file 1209403_g181_uvot_sky_image.fits
The exposure ID is 727202269
The exposure time is 149.846 (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 (83.4554,22.2862) with a roll angle of 265.9
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 (83.4600,22.2870) with a radius of 3.000 arc min
This is 0.260 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
Could not find the location of an XRT error circle
image afterglow message for exposure 1 of trigger 1209403
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240117d16h44m54s986959usUT
Observation start time is 2024-01-17T16:37:49.8
Examining file 1209403_g181_uvot_sources_image.fits
The exposure ID is 727202269
The exposure is 149.846 sec.
The bin size is 2 pixels
The filter is WHITE
There are 6 detected source(s) for 1209403_g181
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 83.4517 , 22.2858 with radius 2.29 arc min.
n_usno: 129 n_gsc: 130
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 10.353
RA DEC Mag Color
bright star 0: 83.46026 (05:33:50.46) 22.27085 (+22:16:15.0) 10.35 USNO-V
bright star 1: 83.47484 (05:33:53.96) 22.28205 (+22:16:55.4) 11.92 USNO-V
*** WARNING -- no XRT distances are available.
Found 6 entries without IDs and 5 entries that are acceptable afterglow candidates for 1209403_g181.
Acceptable entries have no ID, BAT distance < 210" or XRT distance < 20", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
1 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=83.4600 (05:33:50.40) DEC=22.2870 (+22:17:13.2)
XRT distances are as reported in catalog file.
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1209403_g181 with genie
ra=83.46180 (05:33:50.83) dec=22.30507 (+22:18:18.3) +/- 0.7" mag=13.73+/-0.14
dist=65.3 REFID=2 major=5.0 minor=4.5 flag=18 (blended+aperture_incomplete)
This source is near the edge of image (0.868)
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
83.4621 22.3001 17.9 -1 USNO-B1 99.99 19.19 99.99 *
83.4588 22.3093 18.1 -1 USNO-B1 16.64 15.84 16.20 *
83.4642 22.3099 19.0 -1 USNO-B1 19.21 17.55 18.29 *
83.4589 22.3092 17.6 -1 GSC2.3 15.94 17.19 16.57 *
83.4642 22.3097 18.6 -1 GSC2.3 17.73 19.14 18.23 *
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 1209403_g181 with genie
ra=83.47050 (05:33:52.92) dec=22.29860 (+22:17:55.0) +/- 0.7" mag=15.97+/-0.14
dist=54.5 REFID=3 major=9.3 minor=8.1 flag=0
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
83.4724 22.2962 10.7 -1 GSC2.3 20.43 99.99 99.99 *
83.4727 22.2985 7.4 -1 GSC2.3 20.30 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 3 in the list of sources is a candidate afterglow for 1209403_g181 with genie
ra=83.46595 (05:33:51.83) dec=22.29005 (+22:17:24.2) +/- 0.8" mag=17.79+/-0.15
dist=22.7 REFID=4 major=2.8 minor=2.5 flag=1 (neighbor)
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
83.4671 22.2930 11.2 -1 USNO-B1 20.71 19.05 19.79 *
83.4694 22.2856 19.8 -1 USNO-B1 19.66 17.58 18.50
83.4673 22.2928 11.0 -1 GSC2.3 19.55 21.87 99.99 *
83.4709 22.2928 19.2 -1 GSC2.3 20.45 22.21 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 1209403_g181 with genie
ra=83.45274 (05:33:48.66) dec=22.28371 (+22:17:01.4) +/- 0.7" mag=16.75+/-0.14
dist=26.9 REFID=5 major=2.3 minor=1.3 flag=0
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
83.4538 22.2884 17.2 -1 USNO-B1 20.16 18.73 19.36
83.4566 22.2799 18.7 -1 USNO-B1 20.21 19.41 19.77
83.4539 22.2883 17.0 -1 GSC2.3 19.23 20.92 18.98
*** unacceptable major profile of 2.3
-----------------
Entry 5 in the list of sources is a candidate afterglow for 1209403_g181 with genie
ra=83.43298 (05:33:43.92) dec=22.28199 (+22:16:55.2) +/- 0.7" mag=16.89+/-0.14
dist=91.8 REFID=6 major=2.0 minor=0.6 flag=0
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
83.4322 22.2858 14.1 -1 USNO-B1 20.71 19.41 19.99
83.4324 22.2862 15.1 -1 GSC2.3 19.80 22.12 99.99
*** unacceptable major profile of 2.0
There are 1.5774731E+05 counts in the bkg source region of 6084.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 25.928 counts/pixel (5-sig UL in 4" is 19.58 mag) for 1209403_g181
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.58, BAT distances < 210",
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: 1209403_727202269_240117d16h44m54s986959usUT_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(83.4554,22.2862,45")
fk5;-circle(83.4659483400649,22.2900545134133,6")
fk5;-circle(83.452737039253,22.2837140562325,6")
image paragraph message for exposure 1 of trigger 1209403
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.
------ Start for Possible Stand-alone Circular ----
In response to GRB240117 (Swift/BAT trigger 1209403) at 16:34:47 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 149 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 0.605.
------- notes for trigger 1209403 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240117d16h44m56s147522usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1209403
-expid=727202269 -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/1209403/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
No XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 727202269.77284 or about 2024:017:16:37:44 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 6 source(s) in Genie image catalog. Found 6 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 19.58 mag. Found 127 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 16% of the
Genie image region.
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?
727202269 149 WHITE srclist data are not available.
727202269 149 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------