srclist overlap message for exposure 3 of trigger 908288
uvot_overlap.pl vrs. 2010-12-20b fem started at 190613d11h30m30s750377usUT
The observation of trigger 908288 started 2019-06-13T04:22:01.6
Examining file ./908288_g882_uvot_sky_srclist.fits
The exposure ID is 582092521
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (182.5250,67.2348) with a roll angle of 289.6
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 (182.5590,67.2330) with a radius of 3.000 arc min
This is 0.796 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 (182.5296,67.2354) with a radius of 0.025 arc min
This is 0.111 arc min from the center of the uvot region
The area of the XRT error circle is 0.002 sq. arc min
The UVOT/XRT overlap is 0.002 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 3 of trigger 908288
find_uvot_ag.pl vrs. 2017-02-17 fem started at 190613d11h30m55s438510usUT
Observation start time is 2019-06-13T04:22:01.6
Examining file ./908288_g882_uvot_catalog_srclist.fits
The exposure ID is 582092521
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 48 detected source(s) for 908288_g882
Aspect correction adds -0.00378 degrees (-0.906 sec of time = -5.26 arc sec) to RA
Aspect correction adds 0.00067 degrees ( 2.41 arcsec) to Dec
Total aspect correction is 5.79 arcsec
Star catalogs centered at 182.5144 , 67.2134 with radius 7.72 arc min.
n_usno: 496 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 44 matched entries is 0.798" for 908288_g882
Mean and std. dev of mag. difference (MAG_DELTA) are 1.502 and 0.604 for 908288_g882
Found 6 entries without IDs and 1 entries that are acceptable afterglow candidates for 908288_g882.
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.
Magnitude criteria will be applied later.
BAT distances are from RA=182.5590 (12:10:14.16) DEC=67.2330 (+67:13:58.8)
XRT distances are from RA=182.5296 (12:10:07.11) DEC=67.2354 (+67:14:07.3)
-----------------
Entry 9 in the list of sources is a candidate afterglow for 908288_g882 with 5x5 stamp
ra=182.59035 (12:10:21.68) dec=67.28677 (+67:17:12.4) +/- 1.1" mag=20.57+/-0.35
dist=203.4 REFID=41
*** The position of this source is inconsistent with the XRT position.
The position is 198.4 arc sec from the BAT position.
src: 9 distr. of nearby unmatched sources: 0 0 0 0 0
Found 4 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
182.5829 67.2821 19.6 -1 USNO-B1 20.35 20.41 20.38
182.5839 67.2820 19.4 -1 USNO-B1 99.99 20.00 99.99
182.5882 67.2858 4.5 -1 USNO-B1 15.46 14.30 14.81
182.5937 67.2887 8.5 -1 USNO-B1 20.32 19.57 19.90
*** 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 < 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 3 of trigger 908288
------ Start for Possible Stand-alone Circular ----
In response to GRB190613 (Swift/BAT trigger 908288) at 04:07:18 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 860 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 12:10:06.99 = 182.52912
DEC(J2000) = +67:14:07.1 = 67.23530
with a 90%-confidence error radius of about 0.67 arc sec. This position is 0.7
arc sec. from the center of the XRT error circle. The estimated magnitude is
19.70 with a 1-sigma error of about 0.17. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.02.
------- notes for trigger 908288 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 190613d11h30m59s880763usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=908288
-expid=582092521 -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/908288/
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 582092521.63824 or about 2019:164:04:21:56 UT
Found 492 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 5% of the srclist region. Found 48 sources in
srclist catalog. Found 6 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 4 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. Found 1 Genie image source(s) without IDs. There are 1 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.92 mag. Found 36 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 4% of the Genie image region. The
closest srclist source has ra= 182.5562 dec= 67.2241 mag=19.55 sep=54.88".
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?
582092521 859 WHITE srclist found no candidates.
582092521 859 WHITE 182.52912 67.23530 19.70/20.9 0.7 image Yes
List afterglow candidates for other finding charts.
582091806 144 WHITE 182.52919 67.23528 18.28/19.2 0.7 srclist Yes
582091806 144 WHITE image found no candidates.
582091964 302 U srclist found no candidates.
582091964 302 U 182.52950 67.23530 18.78/20.8 0.3 image Yes
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 67.23530
GRB_ERROR: 0.67
GRB_RA: 182.52912
IMAGE_START_TIME: 04:21:56
MAGNITUDE: 19.70
MAG_ERROR: 0.17
MESSAGE_TYPE: ACK
SOURCE: XRT