image overlap message for exposure 2 of trigger 1220094
uvot_overlap.pl vrs. 2010-12-20b fem started at 240314d23h23m14s760722usUT
The observation of trigger 1220094 started 2024-03-14T23:05:31.9
Examining file 1220094_g372_uvot_sky_image.fits
The exposure ID is 732150331
The exposure time is 140.572 (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 (82.0532,21.8171) with a roll angle of 266.9
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 (81.6710,21.8110) with a radius of 3.000 arc min
This is 21.293 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 2 of trigger 1220094
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240314d23h23m15s588356usUT
Observation start time is 2024-03-14T23:05:31.9
Examining file 1220094_g372_uvot_sources_image.fits
The exposure ID is 732150331
The exposure is 140.572 sec.
The bin size is 2 pixels
The filter is U
There are 12 detected source(s) for 1220094_g372
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 82.0574 , 21.8190 with radius 2.35 arc min.
n_usno: 136 n_gsc: 135
Bright star catalog has no entries brighter than 12 mag
*** WARNING -- no XRT distances are available.
Found 12 entries without IDs and 0 entries that are acceptable afterglow candidates for 1220094_g372.
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=81.6710 (05:26:41.04) DEC=21.8110 (+21:48:39.6)
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. 9:
ra= 82.03522 dec= 21.82326 +/- 0.8" mag=16.16+/-0.15 dist=1218.0 REFID=10 flag=2
There are 42484.270 counts in the bkg source region of 6195.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 6.858 counts/pixel (5-sig UL in 4" is 18.79 mag) for 1220094_g372
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 18.79, 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: 1220094_732150331_240314d23h23m15s588356usUT_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(82.0532,21.8171,45")
fk5;-circle(82.0635399893946,21.8273118629999,6")
fk5;-circle(82.0486233349127,21.8255107004743,6")
image paragraph message for exposure 2 of trigger 1220094
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 GRB240314 (Swift/BAT trigger 1220094) at 22:59:18 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 141 seconds with the U filter starting
339 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 0.533.
------- notes for trigger 1220094 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240314d23h23m16s725257usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1220094
-expid=732150331 -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/1220094/
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 732150331.87742 or about 2024:074:23:05:26 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 12 source(s) in Genie image catalog. Found 12 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 18.79 mag. Found 135 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?
732150331 339 U srclist data are not available.
732150331 339 U image found no candidates.
List afterglow candidates for other finding charts.
732150174 182 ? srclist data are not available.
732150174 182 WHITE image found no candidates.
------- Tokens for Quick GCN -------