image overlap message for exposure 1 of trigger 841583
uvot_overlap.pl vrs. 2010-12-20b fem started at 180614d20h53m18s497273usUT
The observation of trigger 841583 started 2018-06-14T20:48:54.2
Examining file 841583_g1187_uvot_sky_image.fits
The exposure ID is 550702134
The exposure time is 149.868 (seconds)
The filter is WHITE.
The uvot region is centered at (244.9739,-15.6406) with a roll angle of 296.8
It is square with sides of 2.68 arc min. for an area of 7.17 sq arc min
The BAT error circle is centered at (245.0670,-15.7040) with a radius of 3.000 arc min
This is 6.586 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 0.00 sq. arc min or 0.00 of the BAT error circle
Could not find the location of an XRT error circle
image afterglow message for exposure 1 of trigger 841583
find_uvot_ag.pl vrs. 2017-02-17 fem started at 180614d20h53m19s305964usUT
Observation start time is 2018-06-14T20:48:54.2
Examining file 841583_g1187_uvot_sources_image.fits
The exposure ID is 550702134
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 0 detected source(s) for 841583_g1187
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 245.0903 , -15.6491 with radius 2.00 arc min.
n_usno: 68 n_gsc: 64
Bright star catalog has no entries brighter than 12 mag
*** WARNING -- no XRT distances are available.
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 841583_g1187.
Acceptable entries have no ID, BAT distance < 210" or XRT distance < 20", 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=245.0670 (16:20:16.08) DEC=-15.7040 (-15:42:14.4)
XRT distances are as reported in catalog file.
There are 0.0000000 counts in the bkg source region of 6304.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 0.000 counts/pixel (5-sig UL in 4" is 23.47 mag) for 841583_g1187
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 23.47, BAT distances < 210",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Results are questionable because aspect solution FAILED.
Region file: 841583_550702134_180614d20h53m19s305964usUT_bkg.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(244.9739,-15.6406,45")
image paragraph message for exposure 1 of trigger 841583
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no overlap
SRCLIST PROBLEM: overlap is unknown
See notes for more details.
------ Start for Possible Stand-alone Circular ----
In response to GRB180614 (Swift/BAT trigger 841583) at 20:29:06 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 1166 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 BAT error circle. The overlap of the 8'x8' region for the list of
sources generated on-board and the XRT error circle is uncertain. No correction
has been made for the expected extinction corresponding to E(B-V) of 0.38.
------- notes for trigger 841583 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 180614d20h53m21s165519usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=841583
-expid=550702134 -msg_image
Results from standard processing of UVOT TDRSS data for this trigger should be
available at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/841583/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for srclist. No XRT position found for Genie image. BAT
position found.
UVOT exposure began at MET 550702134.20316 or about 2018:165:20:48:49 UT
Found 825 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 13% of the srclist region. Found 88 sources in
srclist catalog. Found 7 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 23.47 mag. Found 64 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 11% of the
Genie image region.
Found no Genie image background information. The closest srclist source has ra=
245.0209 dec= -15.6589 mag=18.25 sep=155.65".
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?
550702134 1166 WHITE srclist found no candidates.
550702134 1166 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------