srclist overlap message for exposure 1 of trigger 841583
uvot_overlap.pl vrs. 2010-12-20b fem started at 180614d20h53m16s394298usUT
The observation of trigger 841583 started 2018-06-14T20:48:54.2
Examining file 841583_g1187_uvot_sky_srclist.fits
The exposure ID is 550702134
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (245.0596,-15.7022) with a roll angle of 296.8
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 (245.0670,-15.7040) with a radius of 3.000 arc min
This is 0.438 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
Could not find the location of an XRT error circle
srclist afterglow message for exposure 1 of trigger 841583
find_uvot_ag.pl vrs. 2017-02-17 fem started at 180614d20h53m17s238111usUT
Observation start time is 2018-06-14T20:48:54.2
Examining file 841583_g1187_uvot_catalog_srclist.fits
The exposure ID is 550702134
The exposure is 149.870 sec.
The bin size is 2 pixels
The filter is WHITE
There are 88 detected source(s) for 841583_g1187
Aspect correction adds 0.00037 degrees (0.089 sec of time = 1.28 arc sec) to RA
Aspect correction adds 0.00047 degrees ( 1.71 arcsec) to Dec
Total aspect correction is 2.13 arcsec
Star catalogs centered at 245.0511 , -15.7025 with radius 6.45 arc min.
n_usno: 829 n_gsc: 823
*** WARNING -- bright star catalog has 3 entries brighter than 12 mag
The brightest has mag 11.32
RA DEC Mag Color
bright star 0: 245.04410 (16:20:10.58) -15.66173 (-15:39:42.2) 11.40 USNO-V
bright star 1: 245.12614 (16:20:30.27) -15.67904 (-15:40:44.6) 11.32 GSC-F
bright star 2: 245.14407 (16:20:34.58) -15.69755 (-15:41:51.2) 11.84 GSC-F
Mean distance difference (CAT_DELTA) for 83 matched entries is 0.683" for 841583_g1187
Mean and std. dev of mag. difference (MAG_DELTA) are 1.368 and 0.517 for 841583_g1187
Found 7 entries without IDs and 3 entries that are acceptable afterglow candidates for 841583_g1187.
Acceptable entries have no ID, XRT distances < 10", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
4 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=245.0670 (16:20:16.08) DEC=-15.7040 (-15:42:14.4)
XRT distances are as reported in catalog file.
-----------------
Entry 21 in the list of sources is a candidate afterglow for 841583_g1187 with 3x3 stamp
ra=245.02587 (16:20:06.21) dec=-15.70012 (-15:42:00.4) +/- 1.1" mag=18.32+/-0.35
dist=269.5 REFID=40
*** The position of this source is inconsistent with the XRT position.
The position is 143.2 arc sec from the BAT position.
src: 21 srclist_match has ID
src: 21 distr. of nearby unmatched sources: 0 0 0 0 0
Found 8 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
245.0274 -15.7046 17.1 -1 USNO-B1 20.27 19.25 19.70
245.0259 -15.6995 2.4 -1 USNO-B1 16.82 15.52 16.09 *
245.0259 -15.6988 4.7 -1 USNO-B1 16.82 15.86 16.29
245.0230 -15.6954 19.5 -1 USNO-B1 17.85 16.93 17.34
245.0273 -15.7046 17.0 -1 GSC2.3 19.13 20.25 99.99
245.0258 -15.7000 0.3 -1 GSC2.3 16.41 17.58 99.99 *
245.0258 -15.6985 5.7 -1 GSC2.3 16.74 17.88 99.99
245.0230 -15.6955 19.5 -1 GSC2.3 16.96 17.98 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 33 in the list of sources is a candidate afterglow for 841583_g1187 with 3x3 stamp
ra=245.02817 (16:20:06.76) dec=-15.72070 (-15:43:14.5) +/- 1.1" mag=20.40+/-0.35
dist=336.5 REFID=88
*** The position of this source is inconsistent with the XRT position.
The position is 147.4 arc sec from the BAT position.
src: 33 distr. of nearby unmatched sources: 0 0 0 0 0
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 43 in the list of sources is a candidate afterglow for 841583_g1187 with 3x3 stamp
ra=245.05846 (16:20:14.03) dec=-15.71319 (-15:42:47.5) +/- 1.1" mag=18.09+/-0.35
dist=378.7 REFID=28
*** The position of this source is inconsistent with the XRT position.
The position is 44.4 arc sec from the BAT position.
src: 43 srclist_match has ID
src: 43 distr. of nearby unmatched sources: 0 0 0 0 0
Found 9 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
245.0580 -15.7116 5.9 -1 USNO-B1 99.99 14.47 99.99
245.0575 -15.7122 4.9 -1 USNO-B1 99.99 14.68 99.99
245.0581 -15.7126 2.6 -1 USNO-B1 16.11 15.06 15.53 *
245.0626 -15.7108 16.8 -1 USNO-B1 21.09 19.23 20.05
245.0630 -15.7141 16.1 -1 USNO-B1 99.99 19.19 99.99
245.0569 -15.7120 6.7 -1 GSC2.3 15.99 17.27 99.99
245.0585 -15.7131 0.3 -1 GSC2.3 15.93 17.31 99.99 *
245.0625 -15.7109 16.3 -1 GSC2.3 19.09 20.99 99.99
245.0630 -15.7140 16.0 -1 GSC2.3 19.77 99.99 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
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 < 10",
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 841583
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no image afterglow info
SRCLIST PROBLEM: overlap is unknown
See notes for more details.
------ Start for Possible Stand-alone Circular ----
In response to GRB180614 (Swift/BAT trigger 841583) at 20:29:06 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 1166 seconds after the BAT trigger. No credible afterglow candidate
has been found in the initial data products. Results from the 2.7'x2.7'
sub-image are not available at this time. The overlap of the 8'x8' region for
the list of sources generated on-board and the XRT error circle is uncertain.
No correction has been made for the expected extinction corresponding to E(B-V)
of 0.38.
------- notes for trigger 841583 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 180614d20h53m19s826161usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=841583
-expid=550702134 -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/841583/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for srclist. BAT position found.
UVOT exposure began at MET 550702134.20316 or about 2018:165:20:48:49 UT
Found 825 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 13% of the srclist region. Found 88 sources in
srclist catalog. Found 7 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
19.22 mag.
The closest srclist source has ra= 245.0209 dec= -15.6589 mag=18.25
sep=155.65".
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?
550702134 1166 WHITE srclist found no candidates.
550702134 1166 WHITE image data are not available.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------