srclist overlap message for exposure 1 of trigger 1102329
uvot_overlap.pl vrs. 2010-12-20b fem started at 220412d17h13m42s730709usUT
The observation of trigger 1102329 started 2022-04-12T17:08:47.0
Examining file 1102329_g117_uvot_sky_srclist.fits
The exposure ID is 671476126
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (320.8001,-0.2225) with a roll angle of 79.7
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 (320.7940,-0.2230) with a radius of 3.000 arc min
This is 0.364 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 1102329
find_uvot_ag.pl vrs. 2020-10-30 fem started at 220412d17h13m44s768096usUT
Observation start time is 2022-04-12T17:08:47.0
Examining file 1102329_g117_uvot_catalog_srclist.fits
The exposure ID is 671476126
The exposure is 150.000 sec.
The bin size is 2 pixels
The filter is WHITE
There are 40 detected source(s) for 1102329_g117
Aspect correction adds 0.00103 degrees (0.248 sec of time = 3.72 arc sec) to RA
Aspect correction adds 0.00085 degrees ( 3.07 arcsec) to Dec
Total aspect correction is 4.83 arcsec
Star catalogs centered at 320.7986 , -0.2315 with radius 6.75 arc min.
n_usno: 454 n_gsc: 0
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.22846
RA DEC Mag Color
bright star 0: 320.81520 (21:23:15.65) -0.33237 (-00:19:56.5) 11.23 USNO-V
*** WARNING -- no XRT distances are available.
Mean distance difference (CAT_DELTA) for 39 matched entries is 0.529" for 1102329_g117
Mean and std. dev of mag. difference (MAG_DELTA) are 1.489 and 0.513 for 1102329_g117
Found 1 entries without IDs and 0 entries that are acceptable afterglow candidates for 1102329_g117.
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=320.7940 (21:23:10.56) DEC=-0.2230 (-00:13:22.8)
XRT distances are as reported in catalog file.
Found NO acceptable entries.
Unidentified entry closest to BAT position is no. 22:
ra=320.79879 dec= -0.28480 +/- 1.1" mag=19.57+/-0.35 dist=223.2 REFID=40
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 1102329
------ Start for Possible Stand-alone Circular ----
In response to GRB220412 (Swift/BAT trigger 1102329) at 17:06:48 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 89 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 0.060.
------- notes for trigger 1102329 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 220412d17h13m46s988879usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1102329
-expid=671476126 -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/1102329/
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 671476126.95514 or about 2022:102:17:08:41 UT
Found 450 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 6% of the srclist region. Found 40 sources in
srclist catalog. Found 1 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?
671476126 88 WHITE srclist found no candidates.
671476126 88 ? image data are not available.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: -0.22300
GRB_ERROR: 200
GRB_RA: 320.79400
IMAGE_START_TIME: 17:08:41
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: BAT