srclist overlap message for exposure 2 of trigger 1259578
uvot_overlap.pl vrs. 2010-12-20b fem started at 241010d16h26m00s477090usUT
The observation of trigger 1259578 started 2024-10-10T10:11:06.0
Examining file ./1259578_g350_uvot_sky_srclist.fits
The exposure ID is 750247865
The exposure time is undefined.
The filter is U.
The uvot region is centered at (153.3716,11.5412) with a roll angle of 111.3
It is square with sides of 12.05 arc min. for an area of 145.15 sq arc min
The BAT error circle is centered at (153.3650,11.5440) with a radius of 3.000 arc min
This is 0.422 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 (153.3813,11.5344) with a radius of 0.035 arc min
This is 0.703 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 1259578
find_uvot_ag.pl vrs. 2023-04-25a fem started at 241010d16h26m14s855378usUT
Observation start time is 2024-10-10T10:11:06.0
Examining file ./1259578_g350_uvot_catalog_srclist.fits
The exposure ID is 750247865
The exposure is 229.676 sec.
The bin size is 2 pixels
The filter is U
There are 23 detected source(s) for 1259578_g350
Aspect correction adds 0.00013 degrees (0.030 sec of time = 0.44 arc sec) to RA
Aspect correction adds -0.00122 degrees (-4.40 arcsec) to Dec
Total aspect correction is 4.42 arcsec
Star catalogs centered at 153.3827 , 11.5566 with radius 8.51 arc min.
n_usno: 734 n_gsc: 548
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.09318
RA DEC Mag Color
bright star 0: 153.44413 (10:13:46.59) 11.50696 (+11:30:25.1) 11.09 USNO-V
Mean distance difference (CAT_DELTA) for 21 matched entries is 0.712" for 1259578_g350
Mean and std. dev of mag. difference (MAG_DELTA) are 0.777 and 0.520 for 1259578_g350
Found 5 entries without IDs and 1 entries that are acceptable afterglow candidates for 1259578_g350.
Acceptable entries have no ID, XRT distances < 5.25", 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=153.3650 (10:13:27.60) DEC=11.5440 (+11:32:38.4)
XRT distances are from RA=153.3813 (10:13:31.52) DEC=11.5344 (+11:32:04.0)
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1259578_g350 with 5x5 stamp
ra=153.37629 (10:13:30.31) dec=11.53822 (+11:32:17.6) +/- 1.1" mag=16.71+/-0.35
dist=22.4 REFID=10
*** The position of this source is inconsistent with the XRT position.
The position is 41.8 arc sec from the BAT position.
src: 0 srclist_match has ID
src: 0 distr. of nearby unmatched sources: 2 0 0 0 0
Found 7 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
153.3755 11.5378 3.1 -1 USNO-B1 14.88 14.21 14.51 *
153.3750 11.5378 4.8 -1 USNO-B1 14.74 99.99 99.99
153.3786 11.5343 16.4 -1 USNO-B1 19.31 18.87 19.07
153.3761 11.5381 0.8 -1 GSC2.3 15.17 16.06 14.28 *
153.3749 11.5372 6.1 -1 GSC2.3 15.91 17.03 99.99
153.3709 11.5389 19.0 -1 GSC2.3 99.99 22.22 99.99
153.3791 11.5343 17.1 -1 GSC2.3 17.74 19.39 18.30
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 4 entries in star catalog(s) within 10" of the XRT position.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
153.3828 11.5365 9.3 -1 USNO-B1 20.45 20.29 20.36
153.3786 11.5343 9.5 -1 USNO-B1 19.31 18.87 19.07
153.3799 11.5338 5.4 -1 USNO-B1 20.93 17.94 19.27
153.3791 11.5343 8.0 -1 GSC2.3 17.74 19.39 18.30
The closest star is 5.45" away.
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 18.07, XRT distances < 5.25",
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 1259578
------ Start for Possible Stand-alone Circular ----
In response to GRB241010 (Swift/BAT trigger 1259578) at 10:05:14 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 230 seconds with the U filter starting
317 seconds after the BAT trigger. There is a candidate afterglow in the
rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 10:13:31.53 = 153.38137
DEC(J2000) = +11:32:03.4 = 11.53427
with a 90%-confidence error radius of about 0.81 arc sec. This position is 0.6
arc sec. from the center of the XRT error circle. The estimated magnitude is
18.13 with a 1-sigma error of about 0.18. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.039.
------- notes for trigger 1259578 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 241010d16h26m16s979903usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1259578
-expid=750247865 -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/1259578/
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 750247865.99164 or about 2024:284:10:11:00 UT
Found 730 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 7% of the srclist region. Found 23 sources in
srclist catalog. Found 5 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
18.07 mag.
Found 2 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. Found 2 Genie image source(s) without IDs. There are 1 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
19.42 mag. Found 52 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 9% of the Genie image region. The
closest srclist source has ra= 153.3763 dec= 11.5382 mag=16.71 sep=22.38".
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?
750247865 316 U srclist found no candidates.
750247865 316 U 153.38137 11.53427 18.13/19.4 0.6 image Yes
List afterglow candidates for other finding charts.
750247654 105 WHITE 153.38145 11.53415 18.39/19.2 1.1 srclist Yes
750247654 105 WHITE 153.38141 11.53429 18.33/19.9 0.6 image Yes
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: u
GRB_DEC: 11.53427
GRB_ERROR: 0.81
GRB_RA: 153.38137
IMAGE_START_TIME: 10:11:00
MAGNITUDE: 18.13
MAG_ERROR: 0.18
MESSAGE_TYPE: ACK
SOURCE: XRT