image overlap message for exposure 1 of trigger 1205400
uvot_overlap.pl vrs. 2010-12-20b fem started at 231230d18h38m14s989344usUT
The observation of trigger 1205400 started 2023-12-30T18:24:02.7
Examining file 1205400_g330_uvot_sky_image.fits
The exposure ID is 725653442
The exposure time is 149.857 (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 (83.5254,21.8190) with a roll angle of 261.8
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 (83.5300,21.8210) with a radius of 3.000 arc min
This is 0.285 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 1205400
find_uvot_ag.pl vrs. 2023-04-25a fem started at 231230d18h38m16s056977usUT
Observation start time is 2023-12-30T18:24:02.7
Examining file 1205400_g330_uvot_sources_image.fits
The exposure ID is 725653442
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 7 detected source(s) for 1205400_g330
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 83.5317 , 21.8208 with radius 2.31 arc min.
n_usno: 111 n_gsc: 115
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.40886
RA DEC Mag Color
bright star 0: 83.53329 (05:34:07.99) 21.78905 (+21:47:20.6) 11.41 USNO-V
*** WARNING -- no XRT distances are available.
Found 7 entries without IDs and 7 entries that are acceptable afterglow candidates for 1205400_g330.
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.
0 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=83.5300 (05:34:07.20) DEC=21.8210 (+21:49:15.6)
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 1205400_g330 with genie
ra=83.53531 (05:34:08.47) dec=21.80036 (+21:48:01.3) +/- 0.7" mag=13.72+/-0.14
dist=76.4 REFID=1 major=11.4 minor=9.1 flag=16 (aperture_incomplete)
Found 2 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
83.5381 21.8022 11.3 -1 USNO-B1 20.56 18.94 19.66 *
83.5381 21.8022 11.2 -1 GSC2.3 19.54 21.73 99.99 *
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 1205400_g330 with genie
ra=83.51652 (05:34:03.97) dec=21.80401 (+21:48:14.4) +/- 0.8" mag=17.91+/-0.15
dist=76.0 REFID=2 major=4.6 minor=2.4 flag=0
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
83.5199 21.8042 11.4 -1 USNO-B1 20.44 19.51 19.92 *
83.5209 21.8027 15.5 -1 USNO-B1 20.58 18.12 19.22
83.5161 21.7987 19.1 -1 USNO-B1 20.39 19.15 19.70
83.5200 21.8042 11.5 -1 GSC2.3 19.81 21.64 18.98 *
83.5210 21.8026 15.8 -1 GSC2.3 18.21 20.32 18.47
83.5162 21.7987 19.3 -1 GSC2.3 19.28 99.99 99.99
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 2 in the list of sources is a candidate afterglow for 1205400_g330 with genie
ra=83.53207 (05:34:07.70) dec=21.83382 (+21:50:01.8) +/- 0.8" mag=17.71+/-0.14
dist=46.7 REFID=3 major=1.4 minor=0.9 flag=2 (blended)
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
83.5308 21.8290 17.8 -1 USNO-B1 20.39 18.59 19.39
83.5349 21.8363 13.0 -1 USNO-B1 20.48 18.87 19.58 *
83.5308 21.8290 17.9 -1 GSC2.3 18.61 20.39 18.95
83.5351 21.8362 13.2 -1 GSC2.3 19.09 20.96 18.98 *
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 3 in the list of sources is a candidate afterglow for 1205400_g330 with genie
ra=83.55186 (05:34:12.45) dec=21.82755 (+21:49:39.2) +/- 0.8" mag=18.65+/-0.15
dist=76.8 REFID=4 major=1.1 minor=0.8 flag=0
This source is near the edge of image (0.894)
Found 10 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
83.5473 21.8245 18.7 -1 USNO-B1 19.62 16.98 18.15 *
83.5505 21.8285 5.7 -1 USNO-B1 20.33 19.95 20.12 *
83.5526 21.8249 9.7 -1 USNO-B1 18.80 17.07 17.84 *
83.5548 21.8279 10.0 -1 USNO-B1 99.99 19.35 99.99 *
83.5552 21.8269 11.6 -1 USNO-B1 20.41 18.92 19.58 *
83.5473 21.8245 18.7 -1 GSC2.3 17.13 19.33 17.98 *
83.5508 21.8278 3.6 -1 GSC2.3 20.27 22.05 99.99 *
83.5526 21.8249 10.0 -1 GSC2.3 17.24 18.69 17.85 *
83.5551 21.8270 11.2 -1 GSC2.3 18.81 20.67 99.99 *
83.5550 21.8283 10.7 -1 GSC2.3 99.99 21.83 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 4 in the list of sources is a candidate afterglow for 1205400_g330 with genie
ra=83.53818 (05:34:09.16) dec=21.81052 (+21:48:37.9) +/- 0.7" mag=17.48+/-0.14
dist=46.6 REFID=5 major=8.7 minor=7.7 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
83.5377 21.8137 11.5 -1 USNO-B1 19.55 18.17 18.78 *
83.5367 21.8110 5.3 -1 USNO-B1 19.41 17.40 18.29 *
83.5436 21.8095 18.5 -1 USNO-B1 19.66 18.04 18.75
83.5377 21.8137 11.4 -1 GSC2.3 18.03 19.57 18.58 *
83.5367 21.8110 5.1 -1 GSC2.3 17.44 19.45 18.26 *
83.5437 21.8095 18.8 -1 GSC2.3 17.86 19.52 18.43
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 1205400_g330 with genie
ra=83.52827 (05:34:06.78) dec=21.84124 (+21:50:28.5) +/- 0.9" mag=20.09+/-0.22
dist=73.1 REFID=6 major=0.8 minor=0.7 flag=0
This source is near the edge of image (0.970)
Found 3 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
83.5277 21.8416 2.4 -1 USNO-B1 20.48 19.16 19.75 *
83.5277 21.8415 2.1 -1 GSC2.3 19.19 20.83 19.01 *
83.5285 21.8456 15.8 -1 GSC2.3 20.40 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 6 in the list of sources is a candidate afterglow for 1205400_g330 with genie
ra=83.51151 (05:34:02.76) dec=21.80964 (+21:48:34.7) +/- 0.8" mag=19.36+/-0.17
dist=74.1 REFID=7 major=1.3 minor=0.9 flag=0
Found 7 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
83.5080 21.8102 11.9 -1 USNO-B1 17.84 15.82 16.71 *
83.5077 21.8095 12.8 -1 USNO-B1 20.07 17.36 18.57 *
83.5067 21.8068 19.0 -1 USNO-B1 17.12 16.00 16.50
83.5126 21.8121 9.7 -1 GSC2.3 99.99 99.99 99.99 *
83.5081 21.8102 11.6 -1 GSC2.3 15.81 17.77 16.77 *
83.5076 21.8091 13.3 -1 GSC2.3 99.99 99.99 99.99 *
83.5068 21.8067 19.0 -1 GSC2.3 16.17 17.19 16.51
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
There are 1.2808540E+05 counts in the bkg source region of 6316.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 20.280 counts/pixel (5-sig UL in 4" is 19.72 mag) for 1205400_g330
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.71, 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: 1205400_725653442_231230d18h38m16s056977usUT_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(83.5254,21.8190,45")
image paragraph message for exposure 1 of trigger 1205400
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 GRB231230 (Swift/BAT trigger 1205400) at 18:18:31 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 298 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 0.560.
------- notes for trigger 1205400 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 231230d18h38m17s622504usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1205400
-expid=725653442 -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/1205400/
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 725653442.73214 or about 2023:364:18:23:57 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 7 source(s) in Genie image catalog. Found 7 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 19.71 mag. Found 111 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 14% 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?
725653442 298 WHITE srclist data are not available.
725653442 298 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------