srclist overlap message for exposure 2 of trigger 819490
uvot_overlap.pl vrs. 2010-12-20b fem started at 180329d19h47m05s272078usUT
The observation of trigger 819490 started 2018-03-29T14:13:14.4
Examining file ./819490_g290_uvot_sky_srclist.fits
The exposure ID is 544025594
The exposure time is undefined.
The filter is U.
The uvot region is centered at (82.9005,-23.6911) with a roll angle of 279.5
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 (82.9160,-23.7080) with a radius of 3.000 arc min
This is 1.325 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 27.67 sq. arc min or 0.98 of the BAT error circle
The XRT error circle is centered at (82.9038,-23.6909) with a radius of 0.028 arc min
This is 0.182 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 2 of trigger 819490
find_uvot_ag.pl vrs. 2017-02-17 fem started at 180329d19h47m15s545149usUT
Observation start time is 2018-03-29T14:13:14.4
Examining file ./819490_g290_uvot_catalog_srclist.fits
The exposure ID is 544025594
The exposure is 249.946 sec.
The bin size is 2 pixels
The filter is U
There are 64 detected source(s) for 819490_g290
Aspect correction adds 0.00051 degrees (0.123 sec of time = 1.69 arc sec) to RA
Aspect correction adds 0.00008 degrees ( 0.30 arcsec) to Dec
Total aspect correction is 1.72 arcsec
Star catalogs centered at 82.8908 , -23.6926 with radius 5.82 arc min.
n_usno: 357 n_gsc: 352
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 11.59116
RA DEC Mag Color
bright star 0: 82.89076 (05:31:33.78) -23.68728 (-23:41:14.2) 11.93 USNO-V
bright star 1: 82.88343 (05:31:32.02) -23.62379 (-23:37:25.6) 11.59 USNO-V
Mean distance difference (CAT_DELTA) for 43 matched entries is 0.787" for 819490_g290
Mean and std. dev of mag. difference (MAG_DELTA) are 1.365 and 0.967 for 819490_g290
Found 21 entries without IDs and 7 entries that are acceptable afterglow candidates for 819490_g290.
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.
9 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=82.9160 (05:31:39.84) DEC=-23.7080 (-23:42:28.8)
XRT distances are from RA=82.9038 (05:31:36.90) DEC=-23.6909 (-23:41:27.1)
*** WARNING 32 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 819490_g290 with 5x5 stamp
ra=82.90408 (05:31:36.98) dec=-23.69001 (-23:41:24.0) +/- 1.1" mag=18.58+/-0.35
dist=3.3 REFID=29
src: 0 distr. of nearby unmatched sources: 2 0 0 0 2
Found 7 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
82.9014 -23.6942 17.6 -1 USNO-B1 21.36 19.74 20.46
82.9010 -23.6881 12.1 -1 USNO-B1 21.01 19.20 20.00
82.9101 -23.6892 20.0 -1 USNO-B1 20.90 20.90 20.90
82.8986 -23.6889 18.5 -1 GSC2.3 99.99 22.52 99.99
82.8986 -23.6883 19.1 -1 GSC2.3 99.99 22.52 99.99
82.9052 -23.6942 15.5 -1 GSC2.3 99.99 22.35 99.99
82.9100 -23.6892 19.9 -1 GSC2.3 99.99 21.52 99.99
##### This source remains a candidate #####
It has no entries within 4" or brighter than 13 mag
-----------------
Entry 1 in the list of sources is a candidate afterglow for 819490_g290 with 5x5 stamp
ra=82.90370 (05:31:36.89) dec=-23.69066 (-23:41:26.4) +/- 1.1" mag=17.07+/-0.35
dist=0.7 REFID=15
src: 1 distr. of nearby unmatched sources: 2 0 0 2 0
Found 5 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
82.9014 -23.6942 14.9 -1 USNO-B1 21.36 19.74 20.46
82.9010 -23.6881 12.6 -1 USNO-B1 21.01 19.20 20.00
82.8986 -23.6889 17.9 -1 GSC2.3 99.99 22.52 99.99
82.8986 -23.6883 18.8 -1 GSC2.3 99.99 22.52 99.99
82.9052 -23.6942 13.7 -1 GSC2.3 99.99 22.35 99.99
##### 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 819490_g290 with 5x5 stamp
ra=82.90439 (05:31:37.05) dec=-23.69087 (-23:41:27.1) +/- 1.1" mag=18.92+/-0.35
dist=2.1 REFID=31
src: 2 distr. of nearby unmatched sources: 2 0 0 1 1
Found 5 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
82.9014 -23.6942 15.6 -1 USNO-B1 21.36 19.74 20.46
82.9010 -23.6881 14.8 -1 USNO-B1 21.01 19.20 20.00
82.9101 -23.6892 19.6 -1 USNO-B1 20.90 20.90 20.90
82.9052 -23.6942 12.3 -1 GSC2.3 99.99 22.35 99.99
82.9100 -23.6892 19.6 -1 GSC2.3 99.99 21.52 99.99
##### This source remains a candidate #####
It has no entries within 4" or brighter than 13 mag
-----------------
Entry 4 in the list of sources is a candidate afterglow for 819490_g290 with 5x5 stamp
ra=82.89914 (05:31:35.79) dec=-23.69330 (-23:41:35.9) +/- 1.1" mag=18.39+/-0.35
dist=17.6 REFID=22
*** The position of this source is inconsistent with the XRT position.
The position is 76.7 arc sec from the BAT position.
src: 4 distr. of nearby unmatched sources: 1 0 0 2 1
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
82.8932 -23.6933 19.4 -1 USNO-B1 19.91 18.02 18.86
82.8948 -23.6941 14.5 -1 USNO-B1 20.77 17.53 18.97
82.8986 -23.6943 3.8 -1 USNO-B1 13.39 13.21 13.29 *
82.9014 -23.6942 8.1 -1 USNO-B1 21.36 19.74 20.46
82.9010 -23.6881 19.7 -1 USNO-B1 21.01 19.20 20.00
82.8932 -23.6933 19.6 -1 GSC2.3 18.27 19.12 99.99
82.8986 -23.6943 4.1 -1 GSC2.3 12.44 13.04 99.99 *
82.8986 -23.6889 16.1 -1 GSC2.3 99.99 22.52 99.99
82.8986 -23.6883 18.1 -1 GSC2.3 99.99 22.52 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 6 in the list of sources is a candidate afterglow for 819490_g290 with 3x3 stamp
ra=82.89849 (05:31:35.64) dec=-23.69293 (-23:41:34.6) +/- 1.1" mag=18.92+/-0.35
dist=18.9 REFID=52
*** The position of this source is inconsistent with the XRT position.
The position is 79.2 arc sec from the BAT position.
src: 6 distr. of nearby unmatched sources: 1 0 0 1 2
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
82.8932 -23.6933 17.3 -1 USNO-B1 19.91 18.02 18.86
82.8948 -23.6941 12.7 -1 USNO-B1 20.77 17.53 18.97
82.8986 -23.6943 4.8 -1 USNO-B1 13.39 13.21 13.29
82.9014 -23.6942 10.6 -1 USNO-B1 21.36 19.74 20.46
82.9010 -23.6881 19.2 -1 USNO-B1 21.01 19.20 20.00
82.8932 -23.6933 17.5 -1 GSC2.3 18.27 19.12 99.99
82.8986 -23.6943 5.0 -1 GSC2.3 12.44 13.04 99.99 *
82.8986 -23.6889 14.6 -1 GSC2.3 99.99 22.52 99.99
82.8986 -23.6883 16.7 -1 GSC2.3 99.99 22.52 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 14 in the list of sources is a candidate afterglow for 819490_g290 with 3x3 stamp
ra=82.90780 (05:31:37.87) dec=-23.71598 (-23:42:57.5) +/- 1.1" mag=19.58+/-0.35
dist=91.4 REFID=58
*** The position of this source is inconsistent with the XRT position.
The position is 39.4 arc sec from the BAT position.
src: 14 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
82.9076 -23.7126 12.1 -1 USNO-B1 21.26 20.90 21.06
82.9061 -23.7147 7.2 -1 GSC2.3 99.99 22.48 99.99
*** If XRT position is correct, then this is NOT the afterglow
-----------------
Entry 31 in the list of sources is a candidate afterglow for 819490_g290 with 3x3 stamp
ra=82.94723 (05:31:47.34) dec=-23.71231 (-23:42:44.3) +/- 1.1" mag=19.98+/-0.35
dist=162.8 REFID=64
*** The position of this source is inconsistent with the XRT position.
The position is 104.1 arc sec from the BAT position.
src: 31 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
82.9479 -23.7113 4.2 -1 USNO-B1 99.99 19.38 99.99
82.9468 -23.7117 2.6 -1 GSC2.3 99.99 22.53 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
separation of 0 and 1 is 2.7 arc sec
Eliminate candidate 0 -- it is only 2.7 arc sec from candidate 1 and dimmer
separation of 1 and 2 is 2.4 arc sec
Eliminate candidate 2 -- it is only 2.4 arc sec from candidate 1 and dimmer
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=82.90408 (05:31:36.98) dec=-23.69001 (-23:41:24.0) +/- 1.1" mag=18.58+/-0.35 dist=3.3 REFID=29
Unmatched source ra=82.90370 (05:31:36.89) dec=-23.69066 (-23:41:26.4) +/- 1.1" mag=17.07+/-0.35 dist=0.7 REFID=15
Unmatched source ra=82.90439 (05:31:37.05) dec=-23.69087 (-23:41:27.1) +/- 1.1" mag=18.92+/-0.35 dist=2.1 REFID=31
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 18.12, 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 2 of trigger 819490
------ Start for Possible Stand-alone Circular ----
In response to GRB180329 (Swift/BAT trigger 819490) at 14:08:23 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
269 seconds after the BAT trigger. There is a candidate afterglow in the
rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 05:31:36.91 = 82.90380
DEC(J2000) = -23:41:25.9 = -23.69052
with a 90%-confidence error radius of about 0.75 arc sec. This position is 1.2
arc sec. from the center of the XRT error circle. The estimated magnitude is
16.35 with a 1-sigma error of about 0.14. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.04.
------- notes for trigger 819490 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 180329d19h47m17s472618usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=819490
-expid=544025594 -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/819490/
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 544025594.3968 or about 2018:088:14:13:09 UT
Found 353 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 7% of the srclist region. Found 64 sources in
srclist catalog. Found 21 srclist source(s) without IDs. There are 1 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
18.12 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
20.47 mag. Found 54 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 8% 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?
544025594 269 U 82.90370 -23.69066 17.07/18.1 0.7 srclist Yes
544025594 269 U 82.90380 -23.69052 16.35/20.5 1.2 image Yes
List afterglow candidates for other finding charts.
544025436 111 WHITE 82.90396 -23.69059 18.24/19.2 1.2 srclist Yes
544025436 111 WHITE 82.90376 -23.69052 17.65/20.7 1.2 image Yes
544026195 870 WHITE 82.90380 -23.69053 17.56/19.2 3.0 srclist Yes
544026195 870 WHITE 82.90388 -23.69049 16.95/20.7 3.1 image Yes
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: u
GRB_DEC: -23.69052
GRB_ERROR: 0.75
GRB_RA: 82.90380
IMAGE_START_TIME: 14:13:09
MAGNITUDE: 16.35
MAG_ERROR: 0.14
MESSAGE_TYPE: ACK
SOURCE: XRT