image overlap message for exposure 1 of trigger 1217736
uvot_overlap.pl vrs. 2010-12-20b fem started at 240227d06h21m02s220166usUT
The observation of trigger 1217736 started 2024-02-27T05:57:33.7
Examining file 1217736_g197_uvot_sky_image.fits
The exposure ID is 730706253
The exposure time is 149.879 (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 (83.8878,21.7305) with a roll angle of 267.1
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 (83.8920,21.7320) with a radius of 3.000 arc min
This is 0.252 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 1217736
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240227d06h21m03s254750usUT
Observation start time is 2024-02-27T05:57:33.7
Examining file 1217736_g197_uvot_sources_image.fits
The exposure ID is 730706253
The exposure is 149.879 sec.
The bin size is 2 pixels
The filter is WHITE
There are 10 detected source(s) for 1217736_g197
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 83.8902 , 21.7284 with radius 2.56 arc min.
n_usno: 156 n_gsc: 159
Bright star catalog has no entries brighter than 12 mag
*** WARNING -- no XRT distances are available.
Found 10 entries without IDs and 10 entries that are acceptable afterglow candidates for 1217736_g197.
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=83.8920 (05:35:34.08) DEC=21.7320 (+21:43:55.2)
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 1217736_g197 with genie
ra=83.89516 (05:35:34.84) dec=21.71282 (+21:42:46.1) +/- 0.8" mag=18.58+/-0.15
dist=69.9 REFID=1 major=2.3 minor=1.4 flag=0
Found 12 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
83.8919 21.7173 19.4 -1 USNO-B1 20.41 18.96 19.61
83.8950 21.7136 3.0 -1 USNO-B1 18.80 18.43 18.59 *
83.8912 21.7126 13.2 -1 USNO-B1 20.14 19.54 19.81 *
83.8985 21.7132 11.2 -1 USNO-B1 20.19 18.67 19.35 *
83.8938 21.7108 8.6 -1 USNO-B1 17.51 15.68 16.49 *
83.8932 21.7096 13.3 -1 USNO-B1 17.67 16.04 16.76 *
83.8920 21.7173 19.2 -1 GSC2.3 19.14 20.86 19.00
83.8949 21.7134 2.1 -1 GSC2.3 18.88 21.75 19.01 *
83.8914 21.7125 12.7 -1 GSC2.3 19.75 21.72 99.99 *
83.8985 21.7132 11.4 -1 GSC2.3 18.92 20.12 18.96 *
83.8939 21.7109 8.1 -1 GSC2.3 16.46 17.65 16.77 *
83.8931 21.7094 14.0 -1 GSC2.3 16.82 17.82 17.38
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 1 in the list of sources is a candidate afterglow for 1217736_g197 with genie
ra=83.87658 (05:35:30.38) dec=21.74243 (+21:44:32.8) +/- 0.8" mag=18.52+/-0.15
dist=63.8 REFID=2 major=7.4 minor=7.1 flag=3 (neighbor+blended)
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** unacceptable major profile of 7.4
-----------------
Entry 2 in the list of sources is a candidate afterglow for 1217736_g197 with genie
ra=83.87481 (05:35:29.95) dec=21.74159 (+21:44:29.7) +/- 0.7" mag=16.62+/-0.14
dist=67.0 REFID=3 major=7.0 minor=6.3 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
83.8702 21.7398 16.7 -1 USNO-B1 20.21 18.54 19.28
83.8702 21.7398 16.6 -1 GSC2.3 18.76 20.20 18.88
*** unacceptable major profile of 7.0
-----------------
Entry 3 in the list of sources is a candidate afterglow for 1217736_g197 with genie
ra=83.86780 (05:35:28.27) dec=21.73772 (+21:44:15.8) +/- 0.7" mag=15.77+/-0.14
dist=83.5 REFID=4 major=8.5 minor=4.2 flag=19 (neighbor+blended+aperture_incomplete)
This source is near the edge of image (0.904)
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
83.8683 21.7331 16.7 -1 USNO-B1 99.99 19.65 99.99 *
83.8702 21.7398 11.1 -1 USNO-B1 20.21 18.54 19.28 *
83.8684 21.7331 16.9 -1 GSC2.3 19.83 99.99 99.99 *
83.8702 21.7398 11.1 -1 GSC2.3 18.76 20.20 18.88 *
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 1217736_g197 with genie
ra=83.89377 (05:35:34.51) dec=21.73474 (+21:44:05.0) +/- 0.8" mag=18.43+/-0.15
dist=11.5 REFID=5 major=1.4 minor=0.9 flag=3 (neighbor+blended)
Found 6 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
83.8966 21.7342 9.5 -1 USNO-B1 20.54 18.41 19.35 *
83.8895 21.7379 18.1 -1 USNO-B1 18.29 16.70 17.40
83.8965 21.7371 12.5 -1 USNO-B1 19.75 17.79 18.66 *
83.8966 21.7342 9.7 -1 GSC2.3 18.63 21.32 19.01 *
83.8896 21.7378 17.7 -1 GSC2.3 16.94 18.04 17.43
83.8966 21.7371 12.7 -1 GSC2.3 17.96 19.27 18.42 *
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 1217736_g197 with genie
ra=83.89941 (05:35:35.86) dec=21.73969 (+21:44:22.9) +/- 0.7" mag=17.26+/-0.14
dist=37.2 REFID=6 major=2.6 minor=1.1 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
83.8965 21.7371 13.4 -1 USNO-B1 19.75 17.79 18.66 *
83.8966 21.7371 13.3 -1 GSC2.3 17.96 19.27 18.42 *
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 1217736_g197 with genie
ra=83.89714 (05:35:35.31) dec=21.73719 (+21:44:13.9) +/- 0.8" mag=18.10+/-0.15
dist=25.4 REFID=7 major=1.8 minor=0.6 flag=3 (neighbor+blended)
Found 6 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
83.8966 21.7342 10.9 -1 USNO-B1 20.54 18.41 19.35 *
83.8997 21.7323 19.4 -1 USNO-B1 18.34 16.45 17.29
83.8965 21.7371 2.2 -1 USNO-B1 19.75 17.79 18.66 *
83.8966 21.7342 10.9 -1 GSC2.3 18.63 21.32 19.01 *
83.8997 21.7323 19.6 -1 GSC2.3 16.62 18.06 17.30
83.8966 21.7371 1.9 -1 GSC2.3 17.96 19.27 18.42 *
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 7 in the list of sources is a candidate afterglow for 1217736_g197 with genie
ra=83.91252 (05:35:39.01) dec=21.74405 (+21:44:38.6) +/- 0.8" mag=18.75+/-0.15
dist=81.2 REFID=8 major=0.9 minor=0.3 flag=0
This source is near the edge of image (0.984)
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
83.9084 21.7477 19.2 -1 USNO-B1 99.99 19.79 99.99 *
83.9084 21.7477 19.0 -1 GSC2.3 19.99 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
-----------------
Entry 8 in the list of sources is a candidate afterglow for 1217736_g197 with genie
ra=83.90380 (05:35:36.91) dec=21.74214 (+21:44:31.7) +/- 0.8" mag=19.57+/-0.18
dist=53.7 REFID=9 major=1.5 minor=0.3 flag=0
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
83.9052 21.7378 16.3 -1 USNO-B1 17.30 15.71 16.41
83.9046 21.7447 9.7 -1 USNO-B1 19.00 17.14 17.97 *
83.9052 21.7377 16.5 -1 GSC2.3 15.94 16.95 16.15
83.9046 21.7447 9.6 -1 GSC2.3 17.42 18.61 17.94 *
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 1217736_g197 with genie
ra=83.86992 (05:35:28.78) dec=21.74152 (+21:44:29.5) +/- 0.7" mag=15.87+/-0.14
dist=81.4 REFID=10 major=8.9 minor=4.0 flag=19 (neighbor+blended+aperture_incomplete)
This source is near the edge of image (0.898)
Found 6 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
83.8702 21.7398 6.1 -1 USNO-B1 20.21 18.54 19.28 *
83.8685 21.7464 18.3 -1 USNO-B1 20.04 18.15 18.99 *
83.8654 21.7446 18.7 -1 USNO-B1 17.73 15.87 16.69 *
83.8702 21.7398 6.2 -1 GSC2.3 18.76 20.20 18.88 *
83.8686 21.7465 18.4 -1 GSC2.3 18.01 19.65 18.77 *
83.8655 21.7445 18.3 -1 GSC2.3 16.22 17.32 16.82 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
There are 99267.148 counts in the bkg source region of 6088.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 16.305 counts/pixel (5-sig UL in 4" is 19.83 mag) for 1217736_g197
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.83, 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: 1217736_730706253_240227d06h21m03s254750usUT_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(83.8878,21.7305,45")
fk5;-circle(83.8937748259168,21.7347359462079,6")
fk5;-circle(83.8971402187071,21.7371879181039,6")
image paragraph message for exposure 1 of trigger 1217736
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 GRB240227 (Swift/BAT trigger 1217736) at 05:54:15 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 165 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 0.566.
------- notes for trigger 1217736 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240227d06h21m04s355003usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1217736
-expid=730706253 -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/1217736/
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 730706253.74416 or about 2024:058:05:57:28 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. 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 19.83 mag. Found 156 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?
730706253 165 WHITE srclist data are not available.
730706253 165 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------