srclist overlap message for exposure 2 of trigger 1202386
uvot_overlap.pl vrs. 2010-12-20b fem started at 231215d00h54m52s464575usUT
The observation of trigger 1202386 started 2023-12-14T21:31:03.5
Examining file ./1202386_g3994_uvot_sky_srclist.fits
The exposure ID is 724282263
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (305.7193,-72.4324) with a roll angle of 308.8
It is square with sides of 8.03 arc min. for an area of 64.51 sq arc min
The BAT error circle is centered at (305.7360,-72.4360) with a radius of 3.000 arc min
This is 0.373 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 28.27 sq. arc min or 1.00 of the BAT error circle
The XRT error circle is centered at (305.6853,-72.4328) with a radius of 0.037 arc min
This is 0.616 arc min from the center of the uvot region
The area of the XRT error circle is 0.004 sq. arc min
The UVOT/XRT overlap is 0.004 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 2 of trigger 1202386
find_uvot_ag.pl vrs. 2023-04-25a fem started at 231215d00h55m02s674750usUT
Observation start time is 2023-12-14T21:31:03.5
Examining file ./1202386_g3994_uvot_catalog_srclist.fits
The exposure ID is 724282263
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 39 detected source(s) for 1202386_g3994
Aspect correction adds 0.00017 degrees (0.041 sec of time = 0.19 arc sec) to RA
Aspect correction adds 0.00202 degrees ( 7.27 arcsec) to Dec
Total aspect correction is 7.27 arcsec
Star catalogs centered at 305.6730 , -72.4215 with radius 6.27 arc min.
n_usno: 835 n_gsc: 566
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 11.5337
RA DEC Mag Color
bright star 0: 305.87234 (20:23:29.36) -72.42761 (-72:25:39.4) 11.93 GSC-F
bright star 1: 305.84946 (20:23:23.87) -72.33755 (-72:20:15.2) 11.53 GSC-F
Mean distance difference (CAT_DELTA) for 37 matched entries is 0.739" for 1202386_g3994
Mean and std. dev of mag. difference (MAG_DELTA) are 1.780 and 0.331 for 1202386_g3994
Found 2 entries without IDs and 1 entries that are acceptable afterglow candidates for 1202386_g3994.
Acceptable entries have no ID, XRT distances < 5.5", 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=305.7360 (20:22:56.64) DEC=-72.4360 (-72:26:09.6)
XRT distances are from RA=305.6853 (20:22:44.47) DEC=-72.4328 (-72:25:58.2)
-----------------
Entry 15 in the list of sources is a candidate afterglow for 1202386_g3994 with 5x5 stamp
ra=305.75589 (20:23:01.41) dec=-72.48381 (-72:29:01.7) +/- 1.1" mag=18.99+/-0.35
dist=198.8 REFID=37
*** The position of this source is inconsistent with the XRT position.
The position is 173.5 arc sec from the BAT position.
src: 15 distr. of nearby unmatched sources: 0 0 0 0 0
Found 10 entries in star catalog(s) within 20.0" of the candidate.
printing all entries
(Entries within 2 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
305.7412 -72.4813 18.3 -1 USNO-B1 21.40 19.95 20.59
305.7407 -72.4815 18.5 -1 USNO-B1 21.79 20.15 20.88
305.7537 -72.4844 3.2 -1 USNO-B1 17.56 16.73 17.10 *
305.7675 -72.4845 12.8 -1 USNO-B1 20.65 19.64 20.09
305.7630 -72.4857 10.3 -1 USNO-B1 20.84 20.04 20.40
305.7658 -72.4857 12.7 -1 USNO-B1 21.52 20.28 20.83
305.7663 -72.4858 13.5 -1 USNO-B1 22.00 20.00 20.89
305.7411 -72.4816 17.9 -1 GSC2.3 20.36 21.81 99.99
305.7536 -72.4845 3.5 -1 GSC2.3 16.76 17.91 99.99 *
305.7658 -72.4859 13.0 -1 GSC2.3 19.86 22.40 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
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 19.22, XRT distances < 5.5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
srclist paragraph message for exposure 2 of trigger 1202386
------ Start for Possible Stand-alone Circular ----
In response to GRB231214 (Swift/BAT trigger 1202386) at 20:24:28 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 3962 seconds after the BAT trigger. No credible afterglow candidate
has been found in the initial data products. The 2.7'x2.7' sub-image covers
100% of the XRT error circle. The typical 3-sigma upper limit has been about
19.6 mag. The 8'x8' region for the list of sources generated on-board covers
100% of the XRT error circle. The list of sources is typically complete to
about 18 mag. No correction has been made for the expected extinction
corresponding to E(B-V) of 0.060.
------- notes for trigger 1202386 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 231215d00h55m05s360730usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1202386
-expid=724282263 -meonly -msg_srclist
Results from standard processing of UVOT TDRSS data for this trigger should be
available at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/1202386/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for srclist. XRT position found for Genie image. BAT
position found.
UVOT exposure began at MET 724282263.54964 or about 2023:348:21:30:58 UT
Found 831 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 14% of the srclist region. Found 39 sources in
srclist catalog. Found 2 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
19.22 mag.
Found 14 source(s) in Genie image catalog. Found 1 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 136 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
13% of the Genie image region.
Genie image analysis:
Found 167032.2 counts in the large background region of 5981.0 pixels or a rate
of 27.927 counts/pixel in a radius of 45.0 arcsec. Based on this background,
the typical 5-sigma UL at a random point in the Genie image is 19.37 mag. for a
4-arcsec aperture.
Found 5691.2 counts in the XRT position region of 201.0 pixels or a rate of
28.314 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is 0.475 +/- 0.544 (1-sigma) cps or
20.41 mag and a range from 19.58 to 99.99 mag. The 3-sigma UL at the XRT
position is 2.107 cps or 18.80 mag. The closest srclist source has ra= 305.6876
dec= -72.4386 mag=18.02 sep=21.08". The closest Genie source has ra= 305.6869
dec= -72.4389 mag=16.93 sep=22.01".
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?
724282263 3962 WHITE srclist found no candidates.
724282263 3962 WHITE image found no candidates.
List afterglow candidates for other finding charts.
724278743 442 WHITE srclist found no candidates.
724278743 442 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: -72.43283
GRB_ERROR: 5.5
GRB_RA: 305.68529
IMAGE_START_TIME: 21:30:58
MAGNITUDE: 18.8
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT