srclist overlap message for exposure 1 of trigger 1232465
uvot_overlap.pl vrs. 2010-12-20b fem started at 240601d21h39m56s461369usUT
The observation of trigger 1232465 started 2024-06-01T21:32:38.1
Examining file 1232465_g137_uvot_sky_srclist.fits
The exposure ID is 738970358
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (108.7243,-6.2000) with a roll angle of 308.3
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 (108.7310,-6.2060) with a radius of 3.000 arc min
This is 0.540 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 1232465
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240601d21h39m58s176184usUT
Observation start time is 2024-06-01T21:32:38.1
Examining file 1232465_g137_uvot_catalog_srclist.fits
The exposure ID is 738970358
The exposure is 150.000 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 1232465_g137
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 1.000
Dimmest detected source in 1232465_g137 has mag 18.74
Aspect correction adds -0.00180 degrees (-0.431 sec of time = -6.43 arc sec) to RA
Aspect correction adds 0.00222 degrees ( 8.00 arcsec) to Dec
Total aspect correction is 10.26 arcsec
Star catalogs centered at 108.7229 , -6.1995 with radius 6.17 arc min.
n_usno: 1723 n_gsc: 1750
*** WARNING -- bright star catalog has 7 entries brighter than 12 mag
The brightest has mag 10.1312
RA DEC Mag Color
bright star 0: 108.65518 (07:14:37.24) -6.15538 (-06:09:19.4) 11.71 USNO-V
bright star 1: 108.71236 (07:14:50.97) -6.28178 (-06:16:54.4) 11.39 GSC-F
bright star 2: 108.64806 (07:14:35.54) -6.25197 (-06:15:07.1) 11.33 USNO-V
bright star 3: 108.78736 (07:15:08.97) -6.26878 (-06:16:07.6) 10.17 USNO-V
bright star 4: 108.82205 (07:15:17.29) -6.21533 (-06:12:55.2) 10.13 GSC-F
bright star 5: 108.67836 (07:14:42.81) -6.21701 (-06:13:01.2) 11.98 GSC-F
bright star 6: 108.66833 (07:14:40.40) -6.13737 (-06:08:14.5) 11.86 GSC-F
*** WARNING -- no XRT distances are available.
Mean distance difference (CAT_DELTA) for 195 matched entries is 0.690" for 1232465_g137
Mean and std. dev of mag. difference (MAG_DELTA) are 1.602 and 0.517 for 1232465_g137
Found 7 entries without IDs and 2 entries that are acceptable afterglow candidates for 1232465_g137.
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.
0 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.
-----------------
Entry 31 in the list of sources is a candidate afterglow for 1232465_g137 with 3x3 stamp
ra=108.74504 (07:14:58.81) dec=-6.18065 (-06:10:50.3) +/- 1.1" mag=16.41+/-0.35
dist=104.2 REFID=36
src: 31 srclist_match has ID
src: 31 distr. of nearby unmatched sources: 2 0 0 0 0
Found 12 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
108.7431 -6.1853 18.1 -1 USNO-B1 19.45 18.58 18.97
108.7471 -6.1849 17.0 -1 USNO-B1 20.10 18.54 19.23
108.7456 -6.1808 2.2 -1 USNO-B1 99.99 12.75 99.99 *
108.7459 -6.1811 3.6 -1 USNO-B1 14.64 12.98 13.72 *
108.7469 -6.1816 7.4 -1 USNO-B1 15.98 14.74 15.29
108.7494 -6.1826 17.0 -1 USNO-B1 19.72 17.99 18.76
108.7432 -6.1853 17.9 -1 GSC2.3 20.34 20.47 99.99
108.7449 -6.1859 18.8 -1 GSC2.3 20.06 20.18 99.99
108.7472 -6.1848 16.9 -1 GSC2.3 19.07 20.11 99.99
108.7452 -6.1806 0.6 -1 GSC2.3 13.52 14.63 99.99 *
108.7471 -6.1816 8.1 -1 GSC2.3 15.54 16.60 99.99
108.7495 -6.1826 17.3 -1 GSC2.3 18.37 19.83 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 75 in the list of sources is a candidate afterglow for 1232465_g137 with 1x1 stamp
ra=108.69021 (07:14:45.65) dec=-6.22525 (-06:13:30.9) +/- 1.1" mag=17.96+/-0.35
dist=161.6 REFID=135
src: 75 srclist_match has ID
src: 75 distr. of nearby unmatched sources: 1 0 0 0 0
Found 4 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
108.6898 -6.2257 2.2 -1 USNO-B1 15.62 15.15 15.36 *
108.6891 -6.2263 5.3 -1 USNO-B1 16.31 15.61 15.92
108.6902 -6.2253 0.2 -1 GSC2.3 16.31 16.60 99.99 *
108.6890 -6.2263 5.7 -1 GSC2.3 16.24 15.44 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
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 1 of trigger 1232465
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.
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 104 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 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 240601d21h40m01s968587usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1232465
-expid=738970358 -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. BAT position found.
UVOT exposure began at MET 738970358.0534 or about 2024:153:21:32:33 UT
Found 1719 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 7 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 18.66 mag.
The number of srclist sources filled the available telemetry. The weakest
source detected was 18.74 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?
738970358 104 WHITE srclist found no candidates.
738970358 104 ? image data are not available.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------