srclist overlap message for exposure 1 of trigger 1434591
uvot_overlap.pl vrs. 2010-12-20b fem started at 260109d12h55m48s194513usUT
The observation of trigger 1434591 started 2026-01-09T12:50:18.4
Examining file 1434591_g182_uvot_sky_srclist.fits
The exposure ID is 789655818
The exposure time is undefined.
The filter is U.
The uvot region is centered at (123.7299,-35.2646) with a roll angle of 166.0
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 (123.7280,-35.2580) with a radius of 3.000 arc min
This is 0.404 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
Could not find the location of an XRT error circle
srclist afterglow message for exposure 1 of trigger 1434591
find_uvot_ag.pl vrs. 2023-04-25a fem started at 260109d12h55m49s573430usUT
Observation start time is 2026-01-09T12:50:18.4
Examining file 1434591_g182_uvot_catalog_srclist.fits
The exposure ID is 789655818
The exposure is 250.000 sec.
The bin size is 2 pixels
The filter is U
There are 190 detected source(s) for 1434591_g182
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 1.000
Dimmest detected source in 1434591_g182 has mag 17.76
Aspect correction adds -0.00056 degrees (-0.134 sec of time = -1.64 arc sec) to RA
Aspect correction adds -0.00130 degrees (-4.70 arcsec) to Dec
Total aspect correction is 4.97 arcsec
Star catalogs centered at 123.7345 , -35.2601 with radius 8.93 arc min.
n_usno: 4001 n_gsc: 4074
*** WARNING -- bright star catalog has 13 entries brighter than 12 mag
The brightest has mag 10.72664
RA DEC Mag Color
bright star 0: 123.73714 (08:14:56.91) -35.23836 (-35:14:18.1) 11.60 GSC-V
bright star 1: 123.76502 (08:15:03.61) -35.28478 (-35:17:05.2) 11.79 USNO-V
bright star 2: 123.71692 (08:14:52.06) -35.32360 (-35:19:25.0) 10.74 USNO-R
bright star 3: 123.63141 (08:14:31.54) -35.26080 (-35:15:38.9) 11.23 USNO-R
bright star 4: 123.65531 (08:14:37.27) -35.20299 (-35:12:10.8) 11.39 USNO-V
bright star 5: 123.76138 (08:15:02.73) -35.35915 (-35:21:32.9) 11.73 USNO-V
bright star 6: 123.60946 (08:14:26.27) -35.23524 (-35:14:06.9) 11.35 USNO-V
bright star 7: 123.77010 (08:15:04.82) -35.15300 (-35:09:10.8) 11.32 USNO-V
bright star 8: 123.86429 (08:15:27.43) -35.29893 (-35:17:56.2) 10.73 USNO-V
bright star 9: 123.67847 (08:14:42.83) -35.13334 (-35:08:00.0) 11.60 GSC-V
bright star 10: 123.63668 (08:14:32.80) -35.37613 (-35:22:34.1) 11.99 USNO-V
bright star 11: 123.66552 (08:14:39.72) -35.19244 (-35:11:32.8) 11.97 GSC-V
bright star 12: 123.66095 (08:14:38.63) -35.36483 (-35:21:53.4) 11.79 GSC-V
*** WARNING -- no XRT distances are available.
Mean distance difference (CAT_DELTA) for 183 matched entries is 0.758" for 1434591_g182
Mean and std. dev of mag. difference (MAG_DELTA) are 0.462 and 0.955 for 1434591_g182
Found 16 entries without IDs and 2 entries that are acceptable afterglow candidates for 1434591_g182.
Acceptable entries have no ID, BAT distance < 200" or XRT distance < 10", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
6 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=123.7280 (08:14:54.72) DEC=-35.2580 (-35:15:28.8)
XRT distances are as reported in catalog file.
-----------------
Entry 6 in the list of sources is a candidate afterglow for 1434591_g182 with 1x1 stamp
ra=123.74907 (08:14:59.78) dec=-35.26888 (-35:16:08.0) +/- 1.1" mag=17.76+/-0.35
dist=73.3 REFID=187
src: 6 srclist_match has ID
src: 6 distr. of nearby unmatched sources: 0 0 0 0 0
Found 9 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
123.7501 -35.2640 17.9 -1 USNO-B1 19.95 18.54 19.16
123.7496 -35.2687 1.7 -1 USNO-B1 17.23 16.10 16.60 *
123.7505 -35.2724 13.2 -1 USNO-B1 20.26 18.48 19.27
123.7549 -35.2703 17.8 -1 USNO-B1 20.20 18.71 19.37
123.7500 -35.2639 18.1 -1 GSC2.3 18.49 20.11 99.99
123.7494 -35.2686 1.3 -1 GSC2.3 15.86 17.01 16.23 *
123.7531 -35.2646 19.5 -1 GSC2.3 19.70 22.02 99.99
123.7505 -35.2722 12.7 -1 GSC2.3 18.22 20.25 99.99
123.7547 -35.2703 17.3 -1 GSC2.3 18.21 20.26 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
-----------------
Entry 17 in the list of sources is a candidate afterglow for 1434591_g182 with 3x3 stamp
ra=123.68824 (08:14:45.18) dec=-35.25333 (-35:15:12.0) +/- 1.1" mag=16.44+/-0.35
dist=118.1 REFID=88
src: 17 srclist_match has ID
src: 17 distr. of nearby unmatched sources: 1 0 0 0 0
Found 11 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
123.6902 -35.2539 6.2 -1 USNO-B1 99.99 16.41 99.99
123.6894 -35.2540 4.3 -1 USNO-B1 99.99 13.88 99.99
123.6888 -35.2539 2.5 -1 USNO-B1 14.26 13.87 14.04 *
123.6878 -35.2479 19.7 -1 USNO-B1 99.99 18.75 99.99
123.6833 -35.2553 16.2 -1 USNO-B1 18.62 17.21 17.84
123.6829 -35.2562 18.9 -1 USNO-B1 99.99 19.12 99.99
123.6826 -35.2529 16.7 -1 USNO-B1 17.04 16.38 16.67
123.6894 -35.2544 5.2 -1 GSC2.3 15.73 99.99 99.99
123.6881 -35.2536 0.9 -1 GSC2.3 14.35 14.33 14.63 *
123.6832 -35.2552 16.3 -1 GSC2.3 17.60 18.86 99.99
123.6825 -35.2528 16.9 -1 GSC2.3 16.36 17.04 16.39
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 17.56, BAT distances < 200",
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 1 of trigger 1434591
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no image afterglow info
SRCLIST PROBLEM: srclist filled telemetry buffer
See notes for more details.
------ Start for Possible Stand-alone Circular ----
In response to GRB260109 (Swift/BAT trigger 1434591) at 12:47:15 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of nominal 250.000 seconds with the U filter
starting 146 seconds after the BAT trigger. No credible afterglow candidate has
been found in the initial data products. Data from the 2.7'x2.7' sub-image are
not available at this time. The 8'x8' region for the list of sources generated
on-board covers 100% of the BAT error circle. The limiting magnitude for the
list of sources is expected to be about 17.7. No correction has been made for
extinction.
------- notes for trigger 1434591 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 260109d12h55m55s658690usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1434591
-expid=789655818 -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/1434591/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
*** Warning -- no exposure found, using srclist assumed value.
No XRT position found for srclist. BAT position found.
UVOT exposure began at MET 789655818.40488 or about 0000:11697:12:50:22 UT
Found 3997 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 34% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 16 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 17.56 mag.
The number of srclist sources filled the available telemetry. The weakest
source detected was 17.76 mag.
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?
789655818 145 U srclist found no candidates.
789655818 145 ? image data are not available.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------