srclist overlap message for exposure 2 of trigger 817345
uvot_overlap.pl vrs. 2010-12-20b fem started at 180324d09h19m53s107794usUT
The observation of trigger 817345 started 2018-03-24T04:42:14.2
Examining file ./817345_g304_uvot_sky_srclist.fits
The exposure ID is 543559334
The exposure time is undefined.
The filter is U.
The uvot region is centered at (76.5752,56.7242) with a roll angle of 256.7
It is square with sides of 12.05 arc min. for an area of 145.15 sq arc min
The BAT error circle is centered at (76.5850,56.7250) with a radius of 3.000 arc min
This is 0.327 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 (76.5265,56.7143) with a radius of 0.028 arc min
This is 1.707 arc min from the center of the uvot region
The area of the XRT error circle is 0.003 sq. arc min
The UVOT/XRT overlap is 0.003 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 2 of trigger 817345
find_uvot_ag.pl vrs. 2017-02-17 fem started at 180324d09h20m00s859672usUT
Observation start time is 2018-03-24T04:42:14.2
Examining file ./817345_g304_uvot_catalog_srclist.fits
The exposure ID is 543559334
The exposure is 249.935 sec.
The bin size is 2 pixels
The filter is U
There are 34 detected source(s) for 817345_g304
Aspect correction adds -0.00178 degrees (-0.426 sec of time = -3.51 arc sec) to RA
Aspect correction adds 0.00069 degrees ( 2.48 arcsec) to Dec
Total aspect correction is 4.30 arcsec
Star catalogs centered at 76.5571 , 56.7219 with radius 8.45 arc min.
n_usno: 1177 n_gsc: 1335
*** WARNING -- bright star catalog has 3 entries brighter than 12 mag
The brightest has mag 8.83098
RA DEC Mag Color
bright star 0: 76.62325 (05:06:29.58) 56.65633 (+56:39:22.8) 11.45 USNO-V
bright star 1: 76.53352 (05:06:08.05) 56.64104 (+56:38:27.7) 10.95 GSC-V
bright star 2: 76.56874 (05:06:16.50) 56.61263 (+56:36:45.5) 8.83 USNO-V
Mean distance difference (CAT_DELTA) for 30 matched entries is 0.549" for 817345_g304
Mean and std. dev of mag. difference (MAG_DELTA) are 2.277 and 0.836 for 817345_g304
Found 4 entries without IDs and 0 entries that are acceptable afterglow candidates for 817345_g304.
Acceptable entries have no ID, XRT distances < 5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
1 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=76.5850 (05:06:20.40) DEC=56.7250 (+56:43:30.0)
XRT distances are from RA=76.5265 (05:06:06.37) DEC=56.7143 (+56:42:51.5)
Found NO acceptable entries.
Unidentified entry closest to XRT position is no. 29:
ra= 76.58215 dec= 56.61994 +/- 1.1" mag=18.82+/-0.35 dist=357.1 REFID=34
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 18.12, XRT distances < 5",
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 2 of trigger 817345
IMAGE PROBLEM: no overlap
------ Start for Possible Stand-alone Circular ----
In response to GRB180324 (Swift/BAT trigger 817345) at 04:37:09 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
283 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 18.0 mag. No correction has been made for the expected extinction
corresponding to E(B-V) of 0.90.
------- notes for trigger 817345 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 180324d09h20m03s202673usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=817345
-expid=543559334 -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/817345/
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 543559334.20274 or about 2018:083:04:42:09 UT
Found 1282 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 12% of the srclist region. Found 34 sources in
srclist catalog. Found 4 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
18.12 mag.
Found 2 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 19.96 mag. Found 84 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 10% of the
Genie image region.
Genie image analysis:
Found 44188.9 counts in the large background region of 6295.0 pixels or a rate
of 7.020 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 19.45 mag. for a
4-arcsec aperture. The closest srclist source has ra= 76.5392 dec= 56.7401
mag=18.24 sep=96.09". The closest Genie source has ra= 76.5623 dec= 56.7437
mag=19.17 sep=127.20".
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?
543559334 283 U srclist found no candidates.
543559334 283 U image found no candidates.
List afterglow candidates for other finding charts.
543559121 70 WHITE srclist found no candidates.
543559121 70 WHITE image found no candidates.
543559913 862 WHITE srclist found no candidates.
543559913 862 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: u
GRB_DEC: 56.71431
GRB_ERROR: 5
GRB_RA: 76.52654
IMAGE_START_TIME: 04:42:09
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT