srclist overlap message for exposure 1 of trigger 1250282
uvot_overlap.pl vrs. 2010-12-20b fem started at 240824d01h12m30s844493usUT
The observation of trigger 1250282 started 2024-08-24T01:06:18.9
Examining file 1250282_g172_uvot_sky_srclist.fits
The exposure ID is 746154378
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (213.1906,63.7344) with a roll angle of 247.1
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 (213.2030,63.7370) with a radius of 3.000 arc min
This is 0.365 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 1250282
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240824d01h12m34s661885usUT
Observation start time is 2024-08-24T01:06:18.9
Examining file 1250282_g172_uvot_catalog_srclist.fits
The exposure ID is 746154378
The exposure is 150.000 sec.
The bin size is 2 pixels
The filter is WHITE
There are 17 detected source(s) for 1250282_g172
Aspect correction adds -0.00161 degrees (-0.386 sec of time = -2.56 arc sec) to RA
Aspect correction adds 0.00101 degrees ( 3.62 arcsec) to Dec
Total aspect correction is 4.44 arcsec
Star catalogs centered at 213.1914 , 63.7407 with radius 5.74 arc min.
n_usno: 298 n_gsc: 239
Bright star catalog has no entries brighter than 12 mag
*** WARNING -- no XRT distances are available.
Mean distance difference (CAT_DELTA) for 17 matched entries is 0.662" for 1250282_g172
Mean and std. dev of mag. difference (MAG_DELTA) are 1.356 and 1.056 for 1250282_g172
Found 2 entries without IDs and 2 entries that are acceptable afterglow candidates for 1250282_g172.
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.
Magnitude criteria will be applied later.
BAT distances are from RA=213.2030 (14:12:48.72) DEC=63.7370 (+63:44:13.2)
XRT distances are as reported in catalog file.
-----------------
Entry 3 in the list of sources is a candidate afterglow for 1250282_g172 with 5x5 stamp
ra=213.28304 (14:13:07.93) dec=63.71421 (+63:42:51.2) +/- 1.1" mag=19.28+/-0.35
dist=151.7 REFID=16
src: 3 distr. of nearby unmatched sources: 0 0 0 0 0
Found 0 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)
##### This source remains a candidate #####
It has no entries within 4" or brighter than 13 mag
-----------------
Entry 7 in the list of sources is a candidate afterglow for 1250282_g172 with 5x5 stamp
ra=213.24625 (14:12:59.10) dec=63.78053 (+63:46:49.9) +/- 1.1" mag=19.32+/-0.35
dist=171.1 REFID=17
src: 7 distr. of nearby unmatched sources: 0 0 0 0 0
Found 2 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
213.2573 63.7817 18.1 -1 USNO-B1 20.90 19.84 20.31
213.2568 63.7834 19.7 -1 USNO-B1 21.13 19.96 20.48
##### This source remains a candidate #####
It has no entries within 4" or brighter than 13 mag
separation of 3 and 7 is 245.8 arc sec
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 1250282
------ Start for Possible Stand-alone Circular ----
In response to GRB240824 (Swift/BAT trigger 1250282) at 01:03:25 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of nominal 150.000 seconds with the White
filter starting 139 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 expected extinction corresponding to E(B-V) of 0.014.
------- notes for trigger 1250282 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240824d01h12m36s639692usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1250282
-expid=746154378 -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/1250282/
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 746154378.9074 or about 2024:237:01:06:13 UT
Found 294 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 6% of the srclist region. Found 17 sources in
srclist catalog. Found 2 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
18.66 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?
746154378 138 WHITE 213.28304 63.71421 19.28/18.7 151.7 srclist Yes
746154378 138 WHITE 213.24625 63.78053 19.32/18.7 171.1 srclist Yes
746154378 138 ? image data are not available.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: 63.73700
GRB_ERROR: 200
GRB_RA: 213.20300
IMAGE_START_TIME: 01:06:13
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: BAT