srclist overlap message for exposure 1 of trigger 871103
uvot_overlap.pl vrs. 2010-12-20b fem started at 181108d20h08m46s838666usUT
The observation of trigger 871103 started 2018-11-08T19:41:08.0
Examining file ./871103_g233_uvot_sky_srclist.fits
The exposure ID is 563398868
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (188.0405,13.3355) with a roll angle of 129.3
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 (188.0350,13.3380) with a radius of 3.000 arc min
This is 0.356 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
The XRT error circle is centered at (188.0629,13.3421) with a radius of 0.047 arc min
This is 1.363 arc min from the center of the uvot region
The area of the XRT error circle is 0.007 sq. arc min
The UVOT/XRT overlap is 0.007 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 871103
find_uvot_ag.pl vrs. 2017-02-17 fem started at 181108d20h08m50s260011usUT
Observation start time is 2018-11-08T19:41:08.0
Examining file ./871103_g233_uvot_catalog_srclist.fits
The exposure ID is 563398868
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 15 detected source(s) for 871103_g233
Aspect correction adds -0.00020 degrees (-0.048 sec of time = -0.70 arc sec) to RA
Aspect correction adds -0.00096 degrees (-3.45 arcsec) to Dec
Total aspect correction is 3.52 arcsec
Star catalogs centered at 188.0367 , 13.3316 with radius 5.27 arc min.
n_usno: 233 n_gsc: 0
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 11.29668
RA DEC Mag Color
bright star 0: 188.04064 (12:32:09.75) 13.41846 (+13:25:06.5) 11.30 USNO-V
bright star 1: 188.05696 (12:32:13.67) 13.24669 (+13:14:48.1) 11.70 USNO-V
Mean distance difference (CAT_DELTA) for 14 matched entries is 0.443" for 871103_g233
Mean and std. dev of mag. difference (MAG_DELTA) are 1.086 and 0.565 for 871103_g233
Found 1 entries without IDs and 0 entries that are acceptable afterglow candidates for 871103_g233.
Acceptable entries have no ID, XRT distances < 7", 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=188.0350 (12:32:08.40) DEC=13.3380 (+13:20:16.8)
XRT distances are from RA=188.0629 (12:32:15.09) DEC=13.3421 (+13:20:31.7)
Found NO acceptable entries.
Unidentified entry closest to XRT position is no. 1:
ra=188.00401 dec= 13.28594 +/- 1.1" mag=19.38+/-0.35 dist=288.9 REFID=15
Found 1 entries in star catalog(s) within 10" of the XRT position.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
188.0632 13.3425 1.7 -1 USNO-B1 19.21 18.40 18.76
The closest star is 1.72" away.
List UVOT sources within 10" of the XRT position:
Matched source ra=188.06320 (12:32:15.17) dec=13.34275 (+13:20:33.9) +/- 1.1" mag=18.64+/-0.35 dist=2.4 REFID=12
There are no candidates inside BAT error circle, but outside XRT error circle.
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.22, XRT distances < 7",
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 871103
IMAGE PROBLEM: no overlap
------ Start for Possible Stand-alone Circular ----
In response to GRB181108 (Swift/BAT trigger 871103) at 19:37:14 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 212 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 none of
the XRT error circle. The 8'x8' region for the list of sources generated
on-board covers 100% of the XRT 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 0.03.
------- notes for trigger 871103 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 181108d20h08m52s166395usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=871103
-expid=563398868 -meonly -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/871103/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for srclist. XRT position found for Genie image. BAT
position found.
UVOT exposure began at MET 563398868.04658 or about 2018:312:19:41:03 UT
Found 229 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 5% of the srclist region. Found 15 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
19.22 mag.
Found 0 source(s) in Genie image catalog. Found 0 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 24.03 mag. Found 25 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 4% of the
Genie image region. The XRT position was OUTSIDE the star catalog search
region.
Found no Genie image background information.
Found 1 srclist source(s) within 10.0" of the XRT position.
The brightest such source has ra= 188.0632 dec= 13.3428 mag=18.64 sep=2.45".
The closest srclist source has ra= 188.0632 dec= 13.3428 mag=18.64 sep=2.45".
Report rejected UVOT sources within 10 arcsec XRT position.
Such sources are usually NOT the afterglow.
****THIS SOURCE NEAR XRT POSITION WAS REJECTED--USE WITH CAUTION****
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 212 seconds after the BAT trigger. There is a candidate afterglow in
the list of sources generated on-board at
RA(J2000) = 12:32:15.17 = 188.06320
DEC(J2000) = +13:20:33.9 = 13.34275
with a 90%-confidence error radius of about 1.10 arc sec. This position is 2.45
arc sec. from the center of the XRT error circle. The estimated magnitude is
18.64 with a 1-sigma error of about 0.35. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.03.
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?
563398868 212 WHITE srclist found no candidates.
563398868 212 WHITE image found no candidates.
List afterglow candidates for other finding charts.
563399519 863 WHITE srclist found no candidates.
563399519 863 ? image data are not available.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: 13.34214
GRB_ERROR: 7
GRB_RA: 188.06288
IMAGE_START_TIME: 19:41:03
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT