image overlap message for exposure 1 of trigger 847216
uvot_overlap.pl vrs. 2010-12-20b fem started at 180711d13h09m07s600183usUT
The observation of trigger 847216 started 2018-07-11T08:15:24.5
Examining file ./847216_g5193_uvot_sky_image.fits
The exposure ID is 552989724
The exposure time is 149.868 (seconds)
The filter is WHITE.
*** Warning -- found 14770 null pixels in the image.
The uvot region is centered at (249.6544,-20.8325) with a roll angle of 279.6
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 (249.6580,-20.8330) with a radius of 3.000 arc min
This is 0.202 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 7.17 sq. arc min or 0.25 of the BAT error circle
The XRT error circle is centered at (249.6300,-20.9236) with a radius of 0.077 arc min
This is 5.635 arc min from the center of the uvot region
The area of the XRT error circle is 0.018 sq. arc min
The UVOT/XRT overlap is 0.000 sq. arc min or 0.00 of the XRT error circle
image afterglow message for exposure 1 of trigger 847216
find_uvot_ag.pl vrs. 2017-02-17 fem started at 180711d13h09m15s481381usUT
Observation start time is 2018-07-11T08:15:24.5
Examining file ./847216_g5193_uvot_catalog_image.fits
The exposure ID is 552989724
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 9 detected source(s) for 847216_g5193
Aspect correction adds -0.00097 degrees (-0.232 sec of time = -3.25 arc sec) to RA
Aspect correction adds -0.00015 degrees (-0.55 arcsec) to Dec
Total aspect correction is 3.29 arcsec
Star catalogs centered at 249.6503 , -20.8367 with radius 2.56 arc min.
n_usno: 230 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 10 matched entries is 0.653" for 847216_g5193
Mean and std. dev of mag. difference (MAG_DELTA) are 1.065 and 0.799 for 847216_g5193
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 847216_g5193.
Acceptable entries have no ID, XRT distances < 11.5", 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=249.6580 (16:38:37.92) DEC=-20.8330 (-20:49:58.8)
XRT distances are from RA=249.6300 (16:38:31.20) DEC=-20.9236 (-20:55:25.1)
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
There are 41279.605 counts in the bkg source region of 1984.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 20.806 counts/pixel (5-sig UL in 4" is 19.70 mag) for 847216_g5193
Do not compute counts in XRT region because position is too far from center.
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 20.26, XRT distances < 11.5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 847216_552989724_180711d13h09m15s481381usUT_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(249.6544,-20.8325,45")
fk5;-circle(249.644133746908,-20.8375273356133,6")
image paragraph message for exposure 1 of trigger 847216
IMAGE PROBLEM: no overlap
------ Start for Possible Stand-alone Circular ----
In response to GRB180711 (Swift/BAT trigger 847216) at 06:48:50 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 5172 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 0.50.
------- notes for trigger 847216 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 180711d13h09m22s561975usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=847216
-expid=552989724 -meonly -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/847216/
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 552989724.53948 or about 2018:192:08:15:19 UT
Found 1416 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 26% of the srclist region. Found 125 sources in
srclist catalog. Found 5 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 9 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 20.26 mag. Found 226 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 23% of the
Genie image region. The XRT position was OUTSIDE the star catalog search
region. The Genie image is INCOMPLETE with 14770 null pixels.
Genie image analysis:
Found 41279.6 counts in the large background region of 1984.0 pixels or a rate
of 20.806 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 19.70 mag. for a
4-arcsec aperture. The closest srclist source has ra= 249.6460 dec= -20.9106
mag=18.03 sep=71.49". The closest Genie source has ra= 249.6490 dec= -20.8572
mag=20.18 sep=247.70".
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?
552989724 5172 WHITE srclist found no candidates.
552989724 5172 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------