image overlap message for exposure 1 of trigger 1210856
uvot_overlap.pl vrs. 2010-12-20b fem started at 240125d12h17m32s666564usUT
The observation of trigger 1210856 started 2024-01-25T12:04:45.1
Examining file 1210856_g4421_uvot_sky_image.fits
The exposure ID is 727877085
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 (299.6416,35.1544) with a roll angle of 171.2
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 (299.7110,35.0060) with a radius of 3.000 arc min
This is 9.535 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 0.00 sq. arc min or 0.00 of the BAT error circle
Could not find the location of an XRT error circle
image afterglow message for exposure 1 of trigger 1210856
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240125d12h17m33s524173usUT
Observation start time is 2024-01-25T12:04:45.1
Examining file 1210856_g4421_uvot_sources_image.fits
The exposure ID is 727877085
The exposure is 149.879 sec.
The bin size is 2 pixels
The filter is WHITE
There are 13 detected source(s) for 1210856_g4421
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 299.6424 , 35.1538 with radius 2.55 arc min.
n_usno: 274 n_gsc: 317
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.42886
RA DEC Mag Color
bright star 0: 299.62599 (19:58:30.24) 35.16512 (+35:09:54.4) 11.43 USNO-V
*** WARNING -- no XRT distances are available.
Found 13 entries without IDs and 0 entries that are acceptable afterglow candidates for 1210856_g4421.
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.
3 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=299.7110 (19:58:50.64) DEC=35.0060 (+35:00:21.6)
XRT distances are as reported in catalog file.
*** WARNING 100 per cent of entries have no IDs.
Found NO acceptable entries.
Unidentified entry closest to BAT position is no. 0:
ra=299.63406 dec= 35.13600 +/- 0.7" mag=16.62+/-0.14 dist=519.9 REFID=1 flag=0
There are 1.1517502E+05 counts in the bkg source region of 6200.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 18.577 counts/pixel (5-sig UL in 4" is 19.76 mag) for 1210856_g4421
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.76, 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: 1210856_727877085_240125d12h17m33s524173usUT_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(299.6416,35.1544,45")
fk5;-circle(299.638665714244,35.1650920103224,6")
image paragraph message for exposure 1 of trigger 1210856
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 GRB240125 (Swift/BAT trigger 1210856) at 10:51:03 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 4389 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 extinction.
------- notes for trigger 1210856 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240125d12h17m34s910284usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1210856
-expid=727877085 -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/1210856/
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 727877085.12792 or about 2024:025:12:04:40 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 13 source(s) in Genie image catalog. Found 13 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 19.76 mag. Found 317 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
33% 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?
727877085 4389 WHITE srclist data are not available.
727877085 4389 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------