srclist overlap message for exposure 1 of trigger 1244778
uvot_overlap.pl vrs. 2010-12-20b fem started at 240725d02h53m26s462376usUT
The observation of trigger 1244778 started 2024-07-25T02:43:14.2
Examining file 1244778_g337_uvot_sky_srclist.fits
The exposure ID is 743568194
The exposure time is undefined.
The filter is U.
The uvot region is centered at (299.0529,-64.6742) with a roll angle of 187.8
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 (299.0540,-64.6670) with a radius of 3.000 arc min
This is 0.435 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 1244778
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240725d02h53m28s121936usUT
Observation start time is 2024-07-25T02:43:14.2
Examining file 1244778_g337_uvot_catalog_srclist.fits
The exposure ID is 743568194
The exposure is 250.000 sec.
The bin size is 2 pixels
The filter is U
There are 190 detected source(s) for 1244778_g337
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 1.000
Dimmest detected source in 1244778_g337 has mag 19.17
Aspect correction adds -0.00109 degrees (-0.261 sec of time = -1.68 arc sec) to RA
Aspect correction adds -0.00262 degrees (-9.45 arcsec) to Dec
Total aspect correction is 9.59 arcsec
Star catalogs centered at 299.0616 , -64.6741 with radius 8.88 arc min.
n_usno: 1220 n_gsc: 1322
*** WARNING -- bright star catalog has 5 entries brighter than 12 mag
The brightest has mag 9.89052
RA DEC Mag Color
bright star 0: 299.12866 (19:56:30.88) -64.71889 (-64:43:08.0) 11.10 GSC-F
bright star 1: 298.95288 (19:55:48.69) -64.61169 (-64:36:42.1) 11.94 GSC-F
bright star 2: 299.13414 (19:56:32.19) -64.75364 (-64:45:13.1) 9.89 USNO-V
bright star 3: 298.85627 (19:55:25.51) -64.76698 (-64:46:01.1) 10.56 USNO-V
bright star 4: 299.26627 (19:57:03.90) -64.72011 (-64:43:12.4) 11.85 GSC-F
*** WARNING -- no XRT distances are available.
Mean distance difference (CAT_DELTA) for 133 matched entries is 0.825" for 1244778_g337
Mean and std. dev of mag. difference (MAG_DELTA) are 1.334 and 0.925 for 1244778_g337
Found 59 entries without IDs and 1 entries that are acceptable afterglow candidates for 1244778_g337.
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.
45 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=299.0540 (19:56:12.96) DEC=-64.6670 (-64:40:01.2)
XRT distances are as reported in catalog file.
*** WARNING 31 per cent of entries have no IDs.
-----------------
Entry 33 in the list of sources is a candidate afterglow for 1244778_g337 with 1x1 stamp
ra=299.18001 (19:56:43.20) dec=-64.67178 (-64:40:18.4) +/- 1.1" mag=18.79+/-0.35
dist=194.8 REFID=181
src: 33 srclist_match has ID
src: 33 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
299.1705 -64.6716 14.7 -1 USNO-B1 20.00 19.15 19.53
299.1712 -64.6724 13.7 -1 USNO-B1 20.12 19.73 19.90
299.1747 -64.6695 11.5 -1 USNO-B1 13.82 12.96 13.34 *
299.1754 -64.6716 7.2 -1 USNO-B1 99.99 19.13 99.99
299.1793 -64.6736 6.7 -1 USNO-B1 16.88 16.48 16.66
299.1795 -64.6724 2.4 -1 USNO-B1 17.14 16.23 16.64 *
299.1702 -64.6719 15.1 -1 GSC2.3 19.28 20.67 99.99
299.1748 -64.6695 11.4 -1 GSC2.3 12.86 14.01 99.99 *
299.1793 -64.6740 8.2 -1 GSC2.3 16.95 17.64 99.99
299.1798 -64.6723 2.0 -1 GSC2.3 16.65 17.86 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 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 1244778
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 GRB240725 (Swift/BAT trigger 1244778) at 02:37:36 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
303 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 18.0 mag. No correction has been made for the expected
extinction corresponding to E(B-V) of 0.068.
------- notes for trigger 1244778 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240725d02h53m31s675190usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1244778
-expid=743568194 -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/1244778/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
No XRT position found for srclist. BAT position found.
UVOT exposure began at MET 743568194.20024 or about 2024:207:02:43:09 UT
Found 1322 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 11% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 59 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 19.17 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?
743568194 303 U srclist found no candidates.
743568194 303 ? image data are not available.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------