image overlap message for exposure 1 of trigger 1200559
uvot_overlap.pl vrs. 2010-12-20b fem started at 231204d03h08m46s821469usUT
The observation of trigger 1200559 started 2023-12-04T02:55:13.2
Examining file ./1200559_g201_uvot_sky_image.fits
The exposure ID is 723351313
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.
*** Warning -- found 11605 null pixels in the image.
The uvot region is centered at (135.7656,-40.2560) with a roll angle of 122.4
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 (135.7140,-40.2230) with a radius of 3.000 arc min
This is 3.081 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 2.98 sq. arc min or 0.11 of the BAT error circle
The XRT error circle is centered at (135.6710,-40.2208) with a radius of 0.097 arc min
This is 4.817 arc min from the center of the uvot region
The area of the XRT error circle is 0.029 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 1200559
find_uvot_ag.pl vrs. 2023-04-25a fem started at 231204d03h08m47s510129usUT
Observation start time is 2023-12-04T02:55:13.2
Examining file ./1200559_g201_uvot_sources_image.fits
The exposure ID is 723351313
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 19 detected source(s) for 1200559_g201
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 135.7780 , -40.2572 with radius 2.15 arc min.
n_usno: 183 n_gsc: 220
*** WARNING -- XRT position is outside star catalog search region.
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.109
RA DEC Mag Color
bright star 0: 135.80467 (09:03:13.12) -40.27243 (-40:16:20.7) 11.11 GSC-F
Found 19 entries without IDs and 3 entries that are acceptable afterglow candidates for 1200559_g201.
Acceptable entries have no ID, XRT distances < 14.5", 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=135.7140 (09:02:51.36) DEC=-40.2230 (-40:13:22.8)
XRT distances are from RA=135.6710 (09:02:41.05) DEC=-40.2208 (-40:13:14.8)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1200559_g201 with genie
ra=135.76141 (09:03:02.74) dec=-40.24542 (-40:14:43.5) +/- 0.7" mag=17.47+/-0.14
dist=263.7 REFID=2 major=5.7 minor=4.1 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 153.3 arc sec from the BAT position.
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
135.7575 -40.2465 11.4 -1 USNO-B1 20.67 18.73 19.59 *
135.7572 -40.2465 12.2 -1 GSC2.3 18.60 20.63 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 1200559_g201 with genie
ra=135.75858 (09:03:02.06) dec=-40.24575 (-40:14:44.7) +/- 0.8" mag=18.07+/-0.15
dist=256.8 REFID=3 major=2.6 minor=2.4 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 147.4 arc sec from the BAT position.
Found 2 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
135.7575 -40.2465 3.9 -1 USNO-B1 20.67 18.73 19.59 *
135.7572 -40.2465 4.6 -1 GSC2.3 18.60 20.63 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 3 in the list of sources is a candidate afterglow for 1200559_g201 with genie
ra=135.75680 (09:03:01.63) dec=-40.24678 (-40:14:48.4) +/- 0.8" mag=19.07+/-0.16
dist=253.5 REFID=4 major=1.4 minor=1.0 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 145.5 arc sec from the BAT position.
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
135.7575 -40.2465 2.3 -1 USNO-B1 20.67 18.73 19.59 *
135.7535 -40.2512 18.1 -1 USNO-B1 21.14 19.45 20.20
135.7510 -40.2453 16.7 -1 USNO-B1 21.06 19.89 20.41
135.7572 -40.2465 1.6 -1 GSC2.3 18.60 20.63 99.99 *
135.7532 -40.2510 18.3 -1 GSC2.3 19.20 21.45 99.99
135.7508 -40.2452 17.4 -1 GSC2.3 19.68 21.51 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
Found 0 entries in star catalog(s) within 20" of the XRT position.
List UVOT sources within 20" of the XRT position:
There are 66411.297 counts in the bkg source region of 3616.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 18.366 counts/pixel (5-sig UL in 4" is 19.77 mag) for 1200559_g201
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 20.32, XRT distances < 14.5",
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: 1200559_723351313_231204d03h08m47s510129usUT_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(135.7656,-40.2560,45")
fk5;-circle(135.761412237148,-40.2454198046615,6")
fk5;-circle(135.75858370988,-40.2457484281443,6")
fk5;-circle(135.756798039712,-40.246777679684,6")
image paragraph message for exposure 1 of trigger 1200559
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 GRB231204 (Swift/BAT trigger 1200559) at 02:51:51 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 169 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 large, but uncertain, extinction expected.
------- notes for trigger 1200559 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 231204d03h08m48s819954usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1200559
-expid=723351313 -meonly -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/1200559/
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. Unreliable extinction found for
xrt position. XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 723351313.18762 or about 2023:338:02:55:08 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 19 source(s) in Genie image catalog. Found 19 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.32 mag. Found 211 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
31% of the Genie image region. The XRT position was OUTSIDE the star catalog
search region. The Genie image is INCOMPLETE with 11605 null pixels.
The closest Genie source has ra= 135.7568 dec= -40.2468 mag=19.07 sep=253.55".
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?
723351313 169 WHITE srclist data are not available.
723351313 169 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------