srclist overlap message for exposure 1 of trigger 866783
uvot_overlap.pl vrs. 2010-12-20b fem started at 181013d07h00m16s880479usUT
The observation of trigger 866783 started 2018-10-13T02:41:38.3
Examining file ./866783_g128_uvot_sky_srclist.fits
The exposure ID is 561091298
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (207.6017,40.1735) with a roll angle of 192.4
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 (207.6010,40.1790) with a radius of 3.000 arc min
This is 0.333 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 (207.6518,40.1082) with a radius of 0.065 arc min
This is 4.540 arc min from the center of the uvot region
The area of the XRT error circle is 0.013 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 866783
find_uvot_ag.pl vrs. 2017-02-17 fem started at 181013d07h00m20s049254usUT
Observation start time is 2018-10-13T02:41:38.3
Examining file ./866783_g128_uvot_catalog_srclist.fits
The exposure ID is 561091298
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 8 detected source(s) for 866783_g128
Aspect correction adds -0.00067 degrees (-0.162 sec of time = -1.86 arc sec) to RA
Aspect correction adds -0.00023 degrees (-0.82 arcsec) to Dec
Total aspect correction is 2.03 arcsec
Star catalogs centered at 207.6093 , 40.1917 with radius 4.64 arc min.
n_usno: 180 n_gsc: 0
*** WARNING -- XRT position is outside star catalog search region.
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 5 matched entries is 0.525" for 866783_g128
Mean and std. dev of mag. difference (MAG_DELTA) are 0.898 and 0.349 for 866783_g128
Found 3 entries without IDs and 3 entries that are acceptable afterglow candidates for 866783_g128.
Acceptable entries have no ID, XRT distances < 9.75", 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=207.6010 (13:50:24.24) DEC=40.1790 (+40:10:44.4)
XRT distances are from RA=207.6518 (13:50:36.43) DEC=40.1082 (+40:06:29.5)
*** WARNING 37 per cent of entries have no IDs.
-----------------
Entry 4 in the list of sources is a candidate afterglow for 866783_g128 with 5x5 stamp
ra=207.58630 (13:50:20.71) dec=40.22323 (+40:13:23.6) +/- 1.1" mag=19.45+/-0.35
dist=451.6 REFID=7
*** The position of this source is inconsistent with the XRT position.
The position is 164.3 arc sec from the BAT position.
src: 4 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)
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 5 in the list of sources is a candidate afterglow for 866783_g128 with 5x5 stamp
ra=207.53819 (13:50:09.17) dec=40.18701 (+40:11:13.2) +/- 1.1" mag=19.58+/-0.35
dist=422.0 REFID=8
*** The position of this source is inconsistent with the XRT position.
The position is 175.1 arc sec from the BAT position.
src: 5 distr. of nearby unmatched sources: 0 0 0 0 0
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 6 in the list of sources is a candidate afterglow for 866783_g128 with 5x5 stamp
ra=207.53782 (13:50:09.08) dec=40.16698 (+40:10:01.1) +/- 1.1" mag=18.43+/-0.35
dist=378.3 REFID=2
*** The position of this source is inconsistent with the XRT position.
The position is 179.1 arc sec from the BAT position.
src: 6 srclist_match has ID
src: 6 distr. of nearby unmatched sources: 2 1 0 0 0
Found 6 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
207.5415 40.1687 12.0 -1 USNO-B1 99.99 19.68 99.99
207.5405 40.1690 10.4 -1 USNO-B1 21.08 18.66 19.73
207.5395 40.1666 4.8 -1 USNO-B1 99.99 18.55 99.99
207.5393 40.1665 4.3 -1 USNO-B1 18.96 15.95 17.29
207.5381 40.1672 1.0 -1 USNO-B1 19.13 16.42 17.62 *
207.5379 40.1660 3.6 -1 USNO-B1 20.32 19.45 19.84 *
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:
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.22, XRT distances < 9.75",
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 866783
IMAGE PROBLEM: no overlap
------ Start for Possible Stand-alone Circular ----
In response to GRB181013 (Swift/BAT trigger 866783) at 02:39:29 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 106 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 866783 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 181013d07h00m22s993857usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=866783
-expid=561091298 -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/866783/
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 561091298.3215 or about 2018:286:02:41:33 UT
Found 176 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 5% of the srclist region. Found 8 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 1 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 20.19 mag. Found 37 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 6% of the
Genie image region. The XRT position was OUTSIDE the star catalog search
region.
Genie image analysis:
Found 149420.1 counts in the large background region of 6307.0 pixels or a rate
of 23.691 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 19.63 mag. for a
4-arcsec aperture. The closest srclist source has ra= 207.6078 dec= 40.1388
mag=18.16 sep=163.63". The closest Genie source has ra= 207.6033 dec= 40.1478
mag=18.77 sep=195.28".
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?
561091298 106 WHITE srclist found no candidates.
561091298 106 WHITE image found no candidates.
List afterglow candidates for other finding charts.
561091457 265 U srclist found no candidates.
561091457 265 U image found no candidates.
------- Tokens for Quick GCN -------