srclist overlap message for exposure 1 of trigger 865179
uvot_overlap.pl vrs. 2010-12-20b fem started at 181003d16h25m54s656478usUT
The observation of trigger 865179 started 2018-10-03T06:02:59.0
Examining file ./865179_g3115_uvot_sky_srclist.fits
The exposure ID is 560239379
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (52.5763,-34.0231) with a roll angle of 124.0
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 (52.5690,-34.0230) 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
The XRT error circle is centered at (52.5287,-33.9647) with a radius of 0.105 arc min
This is 4.231 arc min from the center of the uvot region
The area of the XRT error circle is 0.035 sq. arc min
The UVOT/XRT overlap is 0.000 sq. arc min or 0.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 865179
find_uvot_ag.pl vrs. 2017-02-17 fem started at 181003d16h25m56s425568usUT
Observation start time is 2018-10-03T06:02:59.0
Examining file ./865179_g3115_uvot_catalog_srclist.fits
The exposure ID is 560239379
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 24 detected source(s) for 865179_g3115
Aspect correction adds 0.00029 degrees (0.070 sec of time = 0.87 arc sec) to RA
Aspect correction adds -0.00092 degrees (-3.31 arcsec) to Dec
Total aspect correction is 3.42 arcsec
Star catalogs centered at 52.5694 , -34.0293 with radius 5.54 arc min.
n_usno: 169 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 21 matched entries is 0.753" for 865179_g3115
Mean and std. dev of mag. difference (MAG_DELTA) are 1.757 and 0.988 for 865179_g3115
Found 3 entries without IDs and 1 entries that are acceptable afterglow candidates for 865179_g3115.
Acceptable entries have no ID, XRT distances < 15", 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=52.5690 (03:30:16.56) DEC=-34.0230 (-34:01:22.8)
XRT distances are from RA=52.5287 (03:30:06.89) DEC=-33.9647 (-33:57:52.8)
-----------------
Entry 10 in the list of sources is a candidate afterglow for 865179_g3115 with 5x5 stamp
ra=52.54757 (03:30:11.42) dec=-33.97706 (-33:58:37.4) +/- 1.1" mag=20.71+/-0.35
dist=71.8 REFID=23
*** The position of this source is inconsistent with the XRT position.
The position is 177.3 arc sec from the BAT position.
src: 10 distr. of nearby unmatched sources: 0 0 0 0 0
Found 1 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
52.5481 -33.9765 2.5 -1 USNO-B1 18.90 19.02 18.97 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
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 < 15",
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 865179
IMAGE PROBLEM: no overlap
------ Start for Possible Stand-alone Circular ----
In response to GRB181003 (Swift/BAT trigger 865179) at 05:11:03 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 3094 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 none of the XRT error circle. No correction has been
made for the expected extinction corresponding to E(B-V) of 0.01.
------- notes for trigger 865179 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 181003d16h25m59s734480usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=865179
-expid=560239379 -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/865179/
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.
*** Warning -- BAT and XRT error circles do NOT overlap.
UVOT exposure began at MET 560239379.0293 or about 2018:276:06:02:54 UT
Found 165 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 3% of the srclist region. Found 24 sources in
srclist catalog. Found 3 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 7 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 20.91 mag. Found 43 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.
Genie image analysis:
Found 38317.4 counts in the large background region of 6193.0 pixels or a rate
of 6.187 counts/pixel in a radius of 45.0 arcsec. Based on this background, the
typical 5-sigma UL at a random point in the Genie image is 20.36 mag. for a
4-arcsec aperture. The closest srclist source has ra= 52.5475 dec= -33.9768
mag=20.35 sep=71.15". The closest Genie source has ra= 52.5914 dec= -34.0061
mag=18.24 sep=239.34".
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?
560239379 3094 WHITE srclist found no candidates.
560239379 3094 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------