srclist overlap message for exposure 1 of trigger 908329
uvot_overlap.pl vrs. 2010-12-20b fem started at 190613d14h22m08s112648usUT
The observation of trigger 908329 started 2019-06-13T10:49:11.0
Examining file ./908329_g128_uvot_sky_srclist.fits
The exposure ID is 582115751
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (305.4272,-4.6613) with a roll angle of 62.0
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 (305.4220,-4.6640) with a radius of 3.000 arc min
This is 0.348 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 (305.4320,-4.6469) with a radius of 0.028 arc min
This is 0.914 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 1 of trigger 908329
find_uvot_ag.pl vrs. 2017-02-17 fem started at 190613d14h22m13s775660usUT
Observation start time is 2019-06-13T10:49:11.0
Examining file ./908329_g128_uvot_catalog_srclist.fits
The exposure ID is 582115751
The exposure is 149.813 sec.
The bin size is 2 pixels
The filter is WHITE
There are 145 detected source(s) for 908329_g128
Aspect correction adds 0.00022 degrees (0.053 sec of time = 0.79 arc sec) to RA
Aspect correction adds 0.00045 degrees ( 1.61 arcsec) to Dec
Total aspect correction is 1.79 arcsec
Star catalogs centered at 305.4266 , -4.6590 with radius 6.51 arc min.
n_usno: 957 n_gsc: 0
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 10.92514
RA DEC Mag Color
bright star 0: 305.39672 (20:21:35.21) -4.68966 (-04:41:22.8) 10.93 USNO-V
bright star 1: 305.49902 (20:21:59.76) -4.63047 (-04:37:49.7) 10.99 USNO-R
Mean distance difference (CAT_DELTA) for 129 matched entries is 0.749" for 908329_g128
Mean and std. dev of mag. difference (MAG_DELTA) are 1.498 and 0.429 for 908329_g128
Found 16 entries without IDs and 3 entries that are acceptable afterglow candidates for 908329_g128.
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.
10 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=305.4220 (20:21:41.28) DEC=-4.6640 (-04:39:50.4)
XRT distances are from RA=305.4320 (20:21:43.69) DEC=-4.6469 (-04:38:48.7)
-----------------
Entry 1 in the list of sources is a candidate afterglow for 908329_g128 with 3x3 stamp
ra=305.43192 (20:21:43.66) dec=-4.64651 (-04:38:47.4) +/- 1.1" mag=18.54+/-0.35
dist=1.3 REFID=53
src: 1 distr. of nearby unmatched sources: 0 0 0 0 0
Found 1 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
305.4300 -4.6463 6.9 -1 USNO-B1 17.37 16.18 16.71
##### This source remains a candidate #####
It has no entries within 4" or brighter than 13 mag
-----------------
Entry 11 in the list of sources is a candidate afterglow for 908329_g128 with 3x3 stamp
ra=305.42323 (20:21:41.58) dec=-4.62961 (-04:37:46.6) +/- 1.1" mag=18.97+/-0.35
dist=69.7 REFID=124
*** The position of this source is inconsistent with the XRT position.
The position is 123.9 arc sec from the BAT position.
src: 11 distr. of nearby unmatched sources: 0 0 0 0 0
Found 4 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
305.4239 -4.6299 2.7 -1 USNO-B1 15.70 14.35 14.95 *
305.4213 -4.6282 8.4 -1 USNO-B1 20.59 20.23 20.39
305.4181 -4.6284 19.1 -1 USNO-B1 20.44 20.11 20.26
305.4245 -4.6273 9.5 -1 USNO-B1 17.93 17.40 17.63
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 41 in the list of sources is a candidate afterglow for 908329_g128 with 3x3 stamp
ra=305.38848 (20:21:33.23) dec=-4.64558 (-04:38:44.1) +/- 1.1" mag=19.10+/-0.35
dist=156.4 REFID=77
*** The position of this source is inconsistent with the XRT position.
The position is 137.3 arc sec from the BAT position.
src: 41 distr. of nearby unmatched sources: 1 0 0 0 0
Found 3 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
305.3897 -4.6452 4.7 -1 USNO-B1 16.90 15.82 16.30
305.3891 -4.6455 2.2 -1 USNO-B1 17.13 16.49 16.77 *
305.3851 -4.6487 16.4 -1 USNO-B1 19.87 18.66 19.20
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 1 entries in star catalog(s) within 10" of the XRT position.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
305.4300 -4.6463 7.6 -1 USNO-B1 17.37 16.18 16.71
The closest star is 7.59" away.
List UVOT sources within 10" of the XRT position:
Matched source ra=305.43015 (20:21:43.24) dec=-4.64637 (-04:38:46.9) +/- 1.1" mag=18.32+/-0.35 dist=7.0 REFID=44
Unmatched source ra=305.43192 (20:21:43.66) dec=-4.64651 (-04:38:47.4) +/- 1.1" mag=18.54+/-0.35 dist=1.3 REFID=53
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 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 1 of trigger 908329
------ Start for Possible Stand-alone Circular ----
In response to GRB190613 (Swift/BAT trigger 908329) at 10:47:02 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 105 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 20:21:43.65 = 305.43189
DEC(J2000) = -04:38:47.9 = -4.64665
with a 90%-confidence error radius of about 0.62 arc sec. This position is 0.9
arc sec. from the center of the XRT error circle. The estimated magnitude is
17.76 with a 1-sigma error of about 0.14. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.07.
------- notes for trigger 908329 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 190613d14h22m21s236566usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=908329
-expid=582115751 -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/908329/
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 582115751.01898 or about 2019:164:10:49:06 UT
Found 953 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 15% of the srclist region. Found 145 sources in
srclist catalog. Found 16 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 25 source(s) in Genie image catalog. 2 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
20.67 mag. Found 177 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 15% of the Genie image region.
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?
582115751 105 WHITE 305.43192 -4.64651 18.54/19.2 1.3 srclist Yes
582115751 105 WHITE 305.43189 -4.64665 17.76/20.7 0.9 image Yes
List afterglow candidates for other finding charts.
582115963 317 U 305.43190 -4.64647 19.43/18.1 3.4 srclist Yes
582115963 317 U 305.43192 -4.64668 18.84/20.5 2.6 image Yes
582116519 873 WHITE srclist found no candidates.
582116519 873 WHITE 305.43200 -4.64661 20.15/20.7 2.8 image Yes
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: -4.64665
GRB_ERROR: 0.62
GRB_RA: 305.43189
IMAGE_START_TIME: 10:49:06
MAGNITUDE: 17.76
MAG_ERROR: 0.14
MESSAGE_TYPE: ACK
SOURCE: XRT