image overlap message for exposure 1 of trigger 1192490
uvot_overlap.pl vrs. 2010-12-20b fem started at 230918d04h32m25s655591usUT
The observation of trigger 1192490 started 2023-09-18T03:48:37.8
Examining file 1192490_g141_uvot_sky_image.fits
The exposure ID is 716701717
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 (275.9195,-35.7715) with a roll angle of 259.5
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 (261.9050,-15.1420) with a radius of 3.000 arc min
This is 1413.339 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
The XRT error circle is centered at (261.8769,-15.1236) with a radius of 0.078 arc min
This is 1414.967 arc min from the center of the uvot region
The area of the XRT error circle is 0.019 sq. arc min
The UVOT/XRT overlap is 0.000 sq. arc min or 0.00 of the XRT error circle
image afterglow message for exposure 1 of trigger 1192490
find_uvot_ag.pl vrs. 2023-04-25a fem started at 230918d04h32m27s185747usUT
Observation start time is 2023-09-18T03:48:37.8
Examining file 1192490_g141_uvot_sources_image.fits
The exposure ID is 716701717
The exposure is 149.879 sec.
The bin size is 2 pixels
The filter is WHITE
There are 29 detected source(s) for 1192490_g141
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 275.6539 , -35.8985 with radius 17.71 arc min.
n_usno: 5005 n_gsc: 18547
*** WARNING -- XRT position is outside star catalog search region.
*** WARNING -- bright star catalog has 50 entries brighter than 12 mag
The brightest has mag 9.334
RA DEC Mag Color
bright star 0: 275.65371 (18:22:36.89) -35.87251 (-35:52:21.1) 11.47 USNO-V
bright star 1: 275.70917 (18:22:50.20) -35.89500 (-35:53:42.0) 11.59 GSC-V
bright star 2: 275.59648 (18:22:23.16) -35.88320 (-35:52:59.5) 10.79 USNO-V
bright star 3: 275.68876 (18:22:45.30) -35.85124 (-35:51:04.5) 11.71 USNO-R
bright star 4: 275.72545 (18:22:54.11) -35.90028 (-35:54:01.0) 11.74 USNO-V
bright star 5: 275.70045 (18:22:48.11) -35.85092 (-35:51:03.3) 11.05 USNO-R
bright star 6: 275.73035 (18:22:55.28) -35.94005 (-35:56:24.2) 11.83 USNO-V
bright star 7: 275.68057 (18:22:43.34) -35.92691 (-35:55:36.9) 11.81 GSC-V
bright star 8: 275.70834 (18:22:50.00) -35.98954 (-35:59:22.3) 11.56 GSC-V
bright star 9: 275.61716 (18:22:28.12) -35.79916 (-35:47:57.0) 10.11 GSC-V
bright star 10: 275.72736 (18:22:54.57) -35.99932 (-35:59:57.6) 10.96 GSC-V
bright star 11: 275.53802 (18:22:09.13) -35.99611 (-35:59:46.0) 12.00 GSC-V
bright star 12: 275.49210 (18:21:58.10) -35.96304 (-35:57:47.0) 11.93 GSC-V
bright star 13: 275.48950 (18:21:57.48) -35.79403 (-35:47:38.5) 11.24 GSC-V
bright star 14: 275.62350 (18:22:29.64) -36.06842 (-36:04:06.3) 10.85 GSC-V
bright star 15: 275.59882 (18:22:23.72) -36.06559 (-36:03:56.1) 9.33 GSC-V
bright star 16: 275.82745 (18:23:18.59) -35.79784 (-35:47:52.2) 11.55 GSC-V
bright star 17: 275.46780 (18:21:52.27) -35.79985 (-35:47:59.4) 11.62 GSC-V
bright star 18: 275.87726 (18:23:30.54) -35.93816 (-35:56:17.4) 11.81 GSC-V
bright star 19: 275.62186 (18:22:29.25) -36.08316 (-36:04:59.4) 11.79 GSC-V
bright star 20: 275.88260 (18:23:31.82) -35.93007 (-35:55:48.3) 11.35 GSC-V
bright star 21: 275.46265 (18:21:51.04) -35.78478 (-35:47:05.2) 11.74 GSC-V
bright star 22: 275.46915 (18:21:52.60) -35.77507 (-35:46:30.2) 10.70 GSC-V
bright star 23: 275.44067 (18:21:45.76) -35.79816 (-35:47:53.4) 11.54 GSC-V
bright star 24: 275.57578 (18:22:18.19) -36.08940 (-36:05:21.8) 11.90 GSC-V
bright star 25: 275.67340 (18:22:41.62) -36.09909 (-36:05:56.7) 11.79 GSC-V
bright star 26: 275.79678 (18:23:11.23) -36.07026 (-36:04:12.9) 11.58 GSC-V
bright star 27: 275.48807 (18:21:57.14) -35.72529 (-35:43:31.1) 11.65 GSC-V
bright star 28: 275.84616 (18:23:23.08) -36.06034 (-36:03:37.2) 11.88 GSC-V
bright star 29: 275.93463 (18:23:44.31) -35.91520 (-35:54:54.7) 11.82 GSC-V
bright star 30: 275.37057 (18:21:28.94) -35.89885 (-35:53:55.9) 11.33 GSC-V
bright star 31: 275.46246 (18:21:50.99) -36.07246 (-36:04:20.9) 10.90 GSC-V
bright star 32: 275.43860 (18:21:45.26) -36.05654 (-36:03:23.5) 11.70 GSC-V
bright star 33: 275.94351 (18:23:46.44) -35.95076 (-35:57:02.7) 11.55 GSC-V
bright star 34: 275.34586 (18:21:23.01) -35.85581 (-35:51:20.9) 11.92 GSC-V
bright star 35: 275.92838 (18:23:42.81) -36.02322 (-36:01:23.6) 10.43 GSC-V
bright star 36: 275.94919 (18:23:47.81) -35.99626 (-35:59:46.5) 11.35 GSC-V
bright star 37: 275.64056 (18:22:33.74) -36.15712 (-36:09:25.6) 11.92 GSC-V
bright star 38: 275.94431 (18:23:46.63) -36.01008 (-36:00:36.3) 10.90 GSC-V
bright star 39: 275.70465 (18:22:49.12) -35.64140 (-35:38:29.1) 11.02 GSC-V
bright star 40: 275.32919 (18:21:19.01) -35.86457 (-35:51:52.5) 11.50 GSC-V
bright star 41: 275.36917 (18:21:28.60) -35.75818 (-35:45:29.4) 11.21 GSC-V
bright star 42: 275.43146 (18:21:43.55) -35.69318 (-35:41:35.4) 11.55 GSC-V
bright star 43: 275.34689 (18:21:23.25) -36.01279 (-36:00:46.0) 11.86 GSC-V
bright star 44: 275.75061 (18:23:00.15) -35.62629 (-35:37:34.6) 11.59 GSC-V
bright star 45: 275.31964 (18:21:16.71) -35.81458 (-35:48:52.5) 11.67 GSC-V
bright star 46: 275.77277 (18:23:05.46) -35.62513 (-35:37:30.5) 11.87 GSC-V
bright star 47: 275.67761 (18:22:42.63) -36.18830 (-36:11:17.9) 10.28 GSC-V
bright star 48: 275.42789 (18:21:42.69) -36.12988 (-36:07:47.6) 11.53 GSC-V
bright star 49: 275.75089 (18:23:00.21) -36.18295 (-36:10:58.6) 11.94 GSC-V
Found 29 entries without IDs and 0 entries that are acceptable afterglow candidates for 1192490_g141.
Acceptable entries have no ID, XRT distances < 11.75", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
0 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=261.9050 (17:27:37.20) DEC=-15.1420 (-15:08:31.2)
XRT distances are from RA=261.8769 (17:27:30.46) DEC=-15.1236 (-15:07:25.0)
*** WARNING 100 per cent of entries have no IDs.
Found NO acceptable entries.
Unidentified entry closest to XRT position is no. 1:
ra=275.90298 dec=-35.74967 +/- 0.8" mag=18.38+/-0.15 dist=84811.4 REFID=2 flag=0
Found 0 entries in star catalog(s) within 20" of the XRT position.
List UVOT sources within 20" of the XRT position:
There are 1.5542705E+05 counts in the bkg source region of 5603.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 27.740 counts/pixel (5-sig UL in 4" is 19.55 mag) for 1192490_g141
Do not compute counts in XRT region because position is too far from center.
There are no candidates inside BAT error circle, but outside XRT error circle.
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 20.10, XRT distances < 11.75",
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: 1192490_716701717_230918d04h32m27s185747usUT_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(275.9195,-35.7715,45")
fk5;-circle(275.916580932542,-35.7592144774892,6")
fk5;-circle(275.91712705618,-35.7609629630554,6")
fk5;-circle(275.919401004142,-35.7628247249792,6")
fk5;-circle(275.919641146067,-35.7640937047167,6")
fk5;-circle(275.906180097809,-35.7642309001704,6")
fk5;-circle(275.908504716984,-35.7655482264062,6")
fk5;-circle(275.90853770934,-35.7769809425585,6")
fk5;-circle(275.906433866571,-35.7755355696019,6")
fk5;-circle(275.91887259738,-35.7819872049495,6")
image paragraph message for exposure 1 of trigger 1192490
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 GRB230918 (Swift/BAT trigger 1192490) at 03:46:15 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 109 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 0.399.
------- notes for trigger 1192490 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 230918d04h32m32s720968usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1192490
-expid=716701717 -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/1192490/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 716701717.8045 or about 2023:261:03:48:32 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 29 source(s) in Genie image catalog. Found 29 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.10 mag. Found 15208 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
33% of the Genie image region. The XRT position was OUTSIDE the star catalog
search region. The closest Genie source has ra= 275.9030 dec= -35.7497
mag=18.38 sep=84811.38".
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?
716701717 109 WHITE srclist data are not available.
716701717 109 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------