srclist overlap message for exposure 1 of trigger 832368
uvot_overlap.pl vrs. 2010-12-20b fem started at 180514d18h27m06s808850usUT
The observation of trigger 832368 started 2018-05-14T13:27:21.3
Examining file ./832368_g107_uvot_sky_srclist.fits
The exposure ID is 547997241
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (197.3985,36.9721) with a roll angle of 324.0
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 (197.4010,36.9690) with a radius of 3.000 arc min
This is 0.221 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 (197.3711,36.9723) with a radius of 0.040 arc min
This is 1.312 arc min from the center of the uvot region
The area of the XRT error circle is 0.005 sq. arc min
The UVOT/XRT overlap is 0.005 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 832368
find_uvot_ag.pl vrs. 2017-02-17 fem started at 180514d18h27m08s608925usUT
Observation start time is 2018-05-14T13:27:21.3
Examining file ./832368_g107_uvot_catalog_srclist.fits
The exposure ID is 547997241
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 27 detected source(s) for 832368_g107
Aspect correction adds -0.00064 degrees (-0.153 sec of time = -1.83 arc sec) to RA
Aspect correction adds 0.00038 degrees ( 1.37 arcsec) to Dec
Total aspect correction is 2.29 arcsec
Star catalogs centered at 197.3836 , 36.9767 with radius 5.63 arc min.
n_usno: 205 n_gsc: 176
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.7325
RA DEC Mag Color
bright star 0: 197.32299 (13:09:17.52) 36.95594 (+36:57:21.4) 11.73 USNO-V
Mean distance difference (CAT_DELTA) for 14 matched entries is 0.720" for 832368_g107
Mean and std. dev of mag. difference (MAG_DELTA) are 1.382 and 1.026 for 832368_g107
Found 13 entries without IDs and 1 entries that are acceptable afterglow candidates for 832368_g107.
Acceptable entries have no ID, XRT distances < 6", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
11 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=197.4010 (13:09:36.24) DEC=36.9690 (+36:58:08.4)
XRT distances are from RA=197.3711 (13:09:29.07) DEC=36.9723 (+36:58:20.3)
*** WARNING 48 per cent of entries have no IDs.
-----------------
Entry 3 in the list of sources is a candidate afterglow for 832368_g107 with 5x5 stamp
ra=197.37310 (13:09:29.54) dec=36.95372 (+36:57:13.4) +/- 1.1" mag=20.76+/-0.35
dist=67.1 REFID=27
*** The position of this source is inconsistent with the XRT position.
The position is 99.4 arc sec from the BAT position.
src: 3 distr. of nearby unmatched sources: 0 0 0 0 0
Found 2 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
197.3742 36.9575 13.8 -1 USNO-B1 20.79 20.23 20.48
197.3732 36.9583 16.3 -1 GSC2.3 99.99 22.13 99.99
*** If XRT position is correct, then this is NOT the afterglow
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 < 6",
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 832368
------ Start for Possible Stand-alone Circular ----
In response to GRB180514 (Swift/BAT trigger 832368) at 13:25:33 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 86 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 100% of
the XRT error circle. The typical 3-sigma upper limit has been about 19.6 mag.
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 mag. No
correction has been made for the expected extinction corresponding to E(B-V) of
0.01.
------- notes for trigger 832368 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 180514d18h27m11s661326usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=832368
-expid=547997241 -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/832368/
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 547997241.33758 or about 2018:134:13:27:16 UT
Found 201 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 4% of the srclist region. Found 27 sources in
srclist catalog. Found 13 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 8 source(s) in Genie image catalog. Found 3 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 20.84 mag. Found 38 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 5% of the
Genie image region.
Genie image analysis:
Found 40041.2 counts in the large background region of 5652.0 pixels or a rate
of 7.084 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 20.29 mag. for a
4-arcsec aperture.
Found 1370.2 counts in the XRT position region of 201.0 pixels or a rate of
6.817 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is -0.490 +/- 0.268 (1-sigma) cps. The
3-sigma UL at the XRT position is 0.804 cps or 20.02 mag. The closest srclist
source has ra= 197.3614 dec= 36.9739 mag=13.86 sep=28.53". The closest Genie
source has ra= 197.3660 dec= 36.9729 mag=19.15 sep=14.82".
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?
547997241 86 WHITE srclist found no candidates.
547997241 86 WHITE image found no candidates.
List afterglow candidates for other finding charts.
547997453 298 U srclist found no candidates.
547997453 298 U image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 36.97231
GRB_ERROR: 6
GRB_RA: 197.37113
IMAGE_START_TIME: 13:27:16
MAGNITUDE: 20.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT