srclist overlap message for exposure 3 of trigger 1232465
uvot_overlap.pl vrs. 2010-12-20b fem started at 250909d22h59m44s629866usUT
The observation of trigger 1232465 started 2024-06-01T21:45:22.3
Examining file 1232465_g901_uvot_sky_srclist.fits
The exposure ID is 738971122
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (108.7245,-6.2010) with a roll angle of 308.3
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 (108.7310,-6.2060) with a radius of 3.000 arc min
This is 0.488 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 3 of trigger 1232465
find_uvot_ag.pl vrs. 2023-04-25a fem started at 250909d22h59m45s384787usUT
Observation start time is 2024-06-01T21:45:22.3
Examining file 1232465_g901_uvot_catalog_srclist.fits
The exposure ID is 738971122
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 1232465_g901
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 0.725
Dimmest detected source in 1232465_g901 has mag 18.32
Aspect correction adds -0.00043 degrees (-0.103 sec of time = -1.53 arc sec) to RA
Aspect correction adds 0.00131 degrees ( 4.71 arcsec) to Dec
Total aspect correction is 4.95 arcsec
Star catalogs centered at 108.7098 , -6.2134 with radius 8.47 arc min.
n_usno: 3186 n_gsc: 3358
*** WARNING -- bright star catalog has 14 entries brighter than 12 mag
The brightest has mag 9.51492
RA DEC Mag Color
bright star 0: 108.71236 (07:14:50.97) -6.28178 (-06:16:54.4) 11.39 GSC-F
bright star 1: 108.64806 (07:14:35.54) -6.25197 (-06:15:07.1) 11.33 USNO-V
bright star 2: 108.65518 (07:14:37.24) -6.15538 (-06:09:19.4) 11.71 USNO-V
bright star 3: 108.78736 (07:15:08.97) -6.26878 (-06:16:07.6) 10.17 USNO-V
bright star 4: 108.60829 (07:14:25.99) -6.21801 (-06:13:04.8) 9.51 USNO-V
bright star 5: 108.82205 (07:15:17.29) -6.21533 (-06:12:55.2) 10.13 GSC-F
bright star 6: 108.78944 (07:15:09.47) -6.29256 (-06:17:33.2) 11.37 USNO-V
bright star 7: 108.59503 (07:14:22.81) -6.14221 (-06:08:31.9) 10.89 USNO-V
bright star 8: 108.63108 (07:14:31.46) -6.32727 (-06:19:38.2) 11.93 USNO-V
bright star 9: 108.67836 (07:14:42.81) -6.21701 (-06:13:01.2) 11.98 GSC-F
bright star 10: 108.66833 (07:14:40.40) -6.13737 (-06:08:14.5) 11.86 GSC-F
bright star 11: 108.72385 (07:14:53.72) -6.32830 (-06:19:41.9) 11.26 GSC-F
bright star 12: 108.60957 (07:14:26.30) -6.28462 (-06:17:04.6) 11.39 GSC-F
bright star 13: 108.73639 (07:14:56.73) -6.34453 (-06:20:40.3) 11.97 GSC-F
*** WARNING -- no XRT distances are available.
Mean distance difference (CAT_DELTA) for 194 matched entries is 0.765" for 1232465_g901
Mean and std. dev of mag. difference (MAG_DELTA) are 1.398 and 0.673 for 1232465_g901
Found 12 entries without IDs and 0 entries that are acceptable afterglow candidates for 1232465_g901.
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.
2 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=108.7310 (07:14:55.44) DEC=-6.2060 (-06:12:21.6)
XRT distances are as reported in catalog file.
Found NO acceptable entries.
Unidentified entry closest to BAT position is no. 62:
ra=108.71480 dec= -6.14985 +/- 1.1" mag=17.06+/-0.35 dist=210.3 REFID=85
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 18.66, 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 3 of trigger 1232465
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: partial overlap
SRCLIST PROBLEM: srclist filled telemetry buffer
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 GRB240601 (Swift/BAT trigger 1232465) at 21:30:20 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 868 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 25% of
the BAT 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 72% of the
BAT error circle. The list of sources is typically complete to about 18 mag. No
correction has been made for the large, but uncertain, extinction expected.
------- notes for trigger 1232465 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 250909d22h59m50s457877usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1232465
-expid=738971122 -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/1232465/
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. No XRT position found for
srclist. No XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 738971122.34772 or about 2024:153:21:45:17 UT
Found 3267 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 31% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 12 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 18.66 mag.
Found 43 source(s) in Genie image catalog. Found 2 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 19.79 mag. Found 370 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
34% of the Genie image region.
Genie image analysis:
Found 88002.2 counts in the large background region of 5069.0 pixels or a rate
of 17.361 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 19.63 mag. for a
4-arcsec aperture. The number of srclist sources filled the available
telemetry. The weakest source detected was 18.32 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?
738971122 868 WHITE srclist found no candidates.
738971122 868 WHITE image found no candidates.
List afterglow candidates for other finding charts.
738970358 104 WHITE srclist found no candidates.
738970358 104 WHITE image found no candidates.
738970569 315 U srclist found no candidates.
738970569 315 U image found no candidates.
------- Tokens for Quick GCN -------