image overlap message for exposure 2 of trigger 1212373
uvot_overlap.pl vrs. 2010-12-20b fem started at 240201d13h35m50s221504usUT
The observation of trigger 1212373 started 2024-02-01T13:25:05.4
Examining file 1212373_g337_uvot_sky_image.fits
The exposure ID is 728486705
The exposure time is 249.946 (seconds)
The filter is U.
*** Warning -- no aspect solution was applied to the image.
consequently the calculated overlaps are questionable.
The uvot region is centered at (244.7923,-15.6062) with a roll angle of 102.3
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 (244.7640,-15.6240) with a radius of 3.000 arc min
This is 1.953 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 6.17 sq. arc min or 0.22 of the BAT error circle
Could not find the location of an XRT error circle
image afterglow message for exposure 2 of trigger 1212373
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240201d13h35m52s182705usUT
Observation start time is 2024-02-01T13:25:05.4
Examining file 1212373_g337_uvot_sources_image.fits
The exposure ID is 728486705
The exposure is 249.946 sec.
The bin size is 2 pixels
The filter is U
There are 8 detected source(s) for 1212373_g337
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 244.7822 , -15.6119 with radius 2.34 arc min.
n_usno: 102 n_gsc: 104
Bright star catalog has no entries brighter than 12 mag
*** WARNING -- no XRT distances are available.
Found 8 entries without IDs and 8 entries that are acceptable afterglow candidates for 1212373_g337.
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.
Magnitude criteria will be applied later.
BAT distances are from RA=244.7640 (16:19:03.36) DEC=-15.6240 (-15:37:26.4)
XRT distances are as reported in catalog file.
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1212373_g337 with genie
ra=244.79855 (16:19:11.65) dec=-15.62770 (-15:37:39.7) +/- 0.8" mag=17.22+/-0.15
dist=120.5 REFID=1 major=1.6 minor=1.1 flag=3 (neighbor+blended)
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
244.8017 -15.6312 16.7 -1 USNO-B1 20.66 19.50 20.02
244.8015 -15.6312 16.0 -1 GSC2.3 19.34 20.98 99.99
*** unacceptable major profile of 1.6
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1212373_g337 with genie
ra=244.76593 (16:19:03.82) dec=-15.61172 (-15:36:42.2) +/- 0.8" mag=16.62+/-0.14
dist=44.7 REFID=2 major=1.6 minor=0.8 flag=19 (neighbor+blended+aperture_incomplete)
This source is near the edge of image (0.953)
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** unacceptable major profile of 1.6
-----------------
Entry 2 in the list of sources is a candidate afterglow for 1212373_g337 with genie
ra=244.78442 (16:19:08.26) dec=-15.60133 (-15:36:04.8) +/- 0.7" mag=15.71+/-0.14
dist=108.1 REFID=3 major=11.9 minor=1.4 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
244.7818 -15.6056 17.9 -1 USNO-B1 20.46 19.67 20.02
244.7818 -15.6056 18.0 -1 GSC2.3 19.72 20.63 99.99
244.7832 -15.6002 5.8 -1 GSC2.3 20.20 21.39 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 1212373_g337 with genie
ra=244.79753 (16:19:11.41) dec=-15.59616 (-15:35:46.2) +/- 0.7" mag=16.04+/-0.14
dist=153.5 REFID=4 major=8.2 minor=1.1 flag=3 (neighbor+blended)
Found 12 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
244.7962 -15.6014 19.3 -1 USNO-B1 18.00 16.09 16.94
244.7931 -15.5952 15.7 -1 USNO-B1 19.49 18.25 18.80
244.7996 -15.5999 15.2 -1 USNO-B1 20.82 19.82 20.26
244.7953 -15.5947 9.2 -1 USNO-B1 99.99 19.65 99.99 *
244.7995 -15.5951 7.7 -1 USNO-B1 20.70 19.77 20.18 *
244.8010 -15.5950 12.7 -1 USNO-B1 20.83 19.34 20.00 *
244.7961 -15.6014 19.6 -1 GSC2.3 16.09 18.08 99.99
244.7931 -15.5953 15.8 -1 GSC2.3 18.23 19.47 99.99
244.7996 -15.5998 14.9 -1 GSC2.3 20.09 20.67 99.99
244.7952 -15.5947 9.7 -1 GSC2.3 19.95 99.99 99.99 *
244.7994 -15.5946 8.6 -1 GSC2.3 20.25 99.99 99.99 *
244.8013 -15.5944 14.6 -1 GSC2.3 19.66 20.93 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 1212373_g337 with genie
ra=244.79124 (16:19:09.90) dec=-15.59855 (-15:35:54.8) +/- 0.8" mag=16.85+/-0.15
dist=131.6 REFID=5 major=3.3 minor=1.1 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
244.7938 -15.6019 14.9 -1 USNO-B1 21.14 19.64 20.30
244.7962 -15.6014 19.9 -1 USNO-B1 18.00 16.09 16.94
244.7931 -15.5952 13.6 -1 USNO-B1 19.49 18.25 18.80
244.7953 -15.5947 19.8 -1 USNO-B1 99.99 19.65 99.99
244.7937 -15.6019 14.9 -1 GSC2.3 19.52 21.07 99.99
244.7961 -15.6014 19.7 -1 GSC2.3 16.09 18.08 99.99
244.7931 -15.5953 13.3 -1 GSC2.3 18.23 19.47 99.99 *
244.7952 -15.5947 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 13.5" or brighter than 12 mag
-----------------
Entry 5 in the list of sources is a candidate afterglow for 1212373_g337 with genie
ra=244.77668 (16:19:06.40) dec=-15.60515 (-15:36:18.5) +/- 0.8" mag=16.65+/-0.14
dist=80.9 REFID=6 major=3.1 minor=1.3 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
244.7818 -15.6056 17.8 -1 USNO-B1 20.46 19.67 20.02
244.7818 -15.6056 17.7 -1 GSC2.3 19.72 20.63 99.99
*** unacceptable major profile of 3.1
-----------------
Entry 6 in the list of sources is a candidate afterglow for 1212373_g337 with genie
ra=244.77158 (16:19:05.18) dec=-15.60827 (-15:36:29.8) +/- 0.7" mag=16.24+/-0.14
dist=62.4 REFID=7 major=4.6 minor=1.0 flag=19 (neighbor+blended+aperture_incomplete)
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** unacceptable major profile of 4.6
-----------------
Entry 7 in the list of sources is a candidate afterglow for 1212373_g337 with genie
ra=244.79668 (16:19:11.20) dec=-15.62480 (-15:37:29.3) +/- 0.8" mag=17.86+/-0.16
dist=113.3 REFID=8 major=1.7 minor=1.0 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
244.8002 -15.6220 15.9 -1 USNO-B1 18.91 18.05 18.43
244.8002 -15.6221 15.7 -1 GSC2.3 17.95 18.97 99.99
*** unacceptable major profile of 1.7
There are 42926.473 counts in the bkg source region of 5982.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 7.176 counts/pixel (5-sig UL in 4" is 19.40 mag) for 1212373_g337
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.39, 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: 1212373_728486705_240201d13h35m52s182705usUT_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(244.7923,-15.6062,45")
fk5;-circle(244.78442292671,-15.6013272261216,6")
fk5;-circle(244.797534765255,-15.5961576462731,6")
fk5;-circle(244.791235617071,-15.5985486556305,6")
image paragraph message for exposure 2 of trigger 1212373
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 GRB240201 (Swift/BAT trigger 1212373) at 13:19:27 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
305 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 0.268.
------- notes for trigger 1212373 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240201d13h35m53s971619usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1212373
-expid=728486705 -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/1212373/
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 728486705.43994 or about 2024:032:13:25:00 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 8 source(s) in Genie image catalog. Found 8 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 19.39 mag. Found 101 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 12% 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?
728486705 305 U srclist data are not available.
728486705 305 U image found no candidates.
List afterglow candidates for other finding charts.
728486546 146 ? srclist data are not available.
728486546 146 WHITE 244.79270 -15.62360 18.94/19.6 99.5 image No
------- Tokens for Quick GCN -------