srclist overlap message for exposure 3 of trigger 805318
uvot_overlap.pl vrs. 2010-12-20b fem started at 180115d10h48m01s636714usUT
The observation of trigger 805318 started 2018-01-15T04:31:03.5
Examining file ./805318_g899_uvot_sky_srclist.fits
The exposure ID is 537683463
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (12.0352,-15.6300) with a roll angle of 252.6
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 (12.0730,-15.6080) with a radius of 3.000 arc min
This is 2.551 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 (12.0388,-15.6306) with a radius of 0.028 arc min
This is 0.206 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 3 of trigger 805318
find_uvot_ag.pl vrs. 2017-02-17 fem started at 180115d10h48m14s283992usUT
Observation start time is 2018-01-15T04:31:03.5
Examining file ./805318_g899_uvot_catalog_srclist.fits
The exposure ID is 537683463
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 47 detected source(s) for 805318_g899
Aspect correction adds 0.00011 degrees (0.025 sec of time = 0.37 arc sec) to RA
Aspect correction adds -0.00081 degrees (-2.93 arcsec) to Dec
Total aspect correction is 2.96 arcsec
Star catalogs centered at 12.0269 , -15.6312 with radius 7.86 arc min.
n_usno: 277 n_gsc: 320
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 39 matched entries is 0.763" for 805318_g899
Mean and std. dev of mag. difference (MAG_DELTA) are 0.909 and 0.507 for 805318_g899
Found 10 entries without IDs and 3 entries that are acceptable afterglow candidates for 805318_g899.
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=12.0730 (00:48:17.52) DEC=-15.6080 (-15:36:28.8)
XRT distances are from RA=12.0388 (00:48:09.30) DEC=-15.6306 (-15:37:50.3)
-----------------
Entry 0 in the list of sources is a candidate afterglow for 805318_g899 with 5x5 stamp
ra=12.03865 (00:48:09.28) dec=-15.63049 (-15:37:49.8) +/- 1.1" mag=17.74+/-0.35
dist=0.6 REFID=15
src: 0 distr. of nearby unmatched sources: 0 0 0 0 0
Found 0 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)
##### This source remains a candidate #####
It has no entries within 4" or brighter than 13 mag
-----------------
Entry 2 in the list of sources is a candidate afterglow for 805318_g899 with 3x3 stamp
ra=12.01721 (00:48:04.13) dec=-15.61507 (-15:36:54.3) +/- 1.1" mag=20.10+/-0.35
dist=93.4 REFID=45
*** The position of this source is inconsistent with the XRT position.
The position is 195.1 arc sec from the BAT position.
src: 2 distr. of nearby unmatched sources: 0 0 0 0 0
Found 1 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
12.0136 -15.6166 13.7 -1 USNO-B1 20.63 19.94 20.25
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 9 in the list of sources is a candidate afterglow for 805318_g899 with 3x3 stamp
ra=12.08130 (00:48:19.51) dec=-15.65158 (-15:39:05.7) +/- 1.1" mag=20.00+/-0.35
dist=165.6 REFID=44
*** The position of this source is inconsistent with the XRT position.
The position is 159.5 arc sec from the BAT position.
src: 9 distr. of nearby unmatched sources: 0 0 0 0 0
Found 2 entries in star catalog(s) within 20.0" of the candidate.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
12.0849 -15.6555 18.8 -1 USNO-B1 20.95 99.99 99.99
12.0848 -15.6554 18.3 -1 GSC2.3 19.81 21.82 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:
Unmatched source ra=12.03865 (00:48:09.28) dec=-15.63049 (-15:37:49.8) +/- 1.1" mag=17.74+/-0.35 dist=0.6 REFID=15
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: 1 good candidate(s) found.
srclist paragraph message for exposure 3 of trigger 805318
------ Start for Possible Stand-alone Circular ----
In response to GRB180115 (Swift/BAT trigger 805318) at 04:16:03 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 879 seconds after the BAT trigger. There is a candidate afterglow in
the list of sources generated on-board at
RA(J2000) = 00:48:09.28 = 12.03865
DEC(J2000) = -15:37:49.8 = -15.63049
with a 90%-confidence error radius of about 1.10 arc sec. This position is 0.6
arc sec. from the center of the XRT error circle. The estimated magnitude is
17.74. No correction has been made for the expected extinction corresponding to
E(B-V) of 0.02.
------- notes for trigger 805318 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 180115d10h48m16s074302usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=805318
-expid=537683463 -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/805318/
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 537683463.51262 or about 2018:015:04:30:58 UT
Found 319 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 3% of the srclist region. Found 47 sources in
srclist catalog. Found 10 srclist source(s) without IDs. There are 1 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 19.42 mag. Found 20 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 3% of the
Genie image region. The Genie image is INCOMPLETE with 21175 null pixels.
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?
537683463 879 WHITE 12.03865 -15.63049 17.74/19.2 0.6 srclist Yes
537683463 879 WHITE image found no candidates.
List afterglow candidates for other finding charts.
537682724 140 WHITE 12.03853 -15.63064 18.06/19.2 0.8 srclist Yes
537682724 140 WHITE 12.03856 -15.63051 17.54/20.5 0.8 image Yes
537682882 298 U 12.03864 -15.63063 16.65/18.1 0.4 srclist Yes
537682882 298 U 12.03863 -15.63062 16.26/20.4 0.4 image Yes
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: -15.63049
GRB_ERROR: 1.10
GRB_RA: 12.03865
IMAGE_START_TIME: 04:30:58
MAGNITUDE: 17.74
MAG_ERROR: 0.4
MESSAGE_TYPE: ACK
SOURCE: XRT