image overlap message for exposure 1 of trigger 1148770
uvot_overlap.pl vrs. 2010-12-20b fem started at 230113d00h49m12s630509usUT
The observation of trigger 1148770 started 2023-01-13T00:37:50.2
Examining file 1148770_g600_uvot_sky_image.fits
The exposure ID is 695263070
The exposure time is 149.868 (seconds)
The filter is WHITE.
The uvot region is centered at (299.5688,35.1719) with a roll angle of 185.8
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 (299.5120,35.0750) with a radius of 3.000 arc min
This is 6.445 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 1148770
find_uvot_ag.pl vrs. 2020-10-30 fem started at 230113d00h49m14s990407usUT
Observation start time is 2023-01-13T00:37:50.2
Examining file 1148770_g600_uvot_sources_image.fits
The exposure ID is 695263070
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 0 detected source(s) for 1148770_g600
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 299.5049 , 35.0819 with radius 2.00 arc min.
n_usno: 175 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
*** WARNING -- no XRT distances are available.
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 1148770_g600.
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=299.5120 (19:58:02.88) DEC=35.0750 (+35:04:30.0)
XRT distances are as reported in catalog file.
There are 0.0000000 counts in the bkg source region of 6305.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 0.000 counts/pixel (5-sig UL in 4" is 23.47 mag) for 1148770_g600
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 23.47, 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: 1148770_695263070_230113d00h49m14s990407usUT_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(299.5688,35.1719,45")
image paragraph message for exposure 1 of trigger 1148770
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 GRB230113 (Swift/BAT trigger 1148770) at 00:27:49 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 570 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. Data 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 1148770 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 230113d00h49m17s970406usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1148770
-expid=695263070 -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/1148770/
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. No XRT position found for Genie
image. BAT position found.
UVOT exposure began at MET 695263070.15436 or about 2023:013:00:37:45 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 0 source(s) in Genie image catalog. Found 0 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 23.47 mag. Found 171 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 29% 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?
695263070 569 ? srclist data are not available.
695263070 569 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------