srclist overlap message for exposure 1 of trigger 954304
uvot_overlap.pl vrs. 2010-12-20b fem started at 200205d22h02m42s070426usUT
The observation of trigger 954304 started 2020-02-05T06:38:35.3
Examining file ./954304_g163_uvot_sky_srclist.fits
The exposure ID is 602577515
The exposure time is undefined.
The filter is UVW2.
The uvot region is centered at (130.1686,-35.2509) with a roll angle of 190.0
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 (130.1710,-35.2450) with a radius of 3.000 arc min
This is 0.371 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 (130.1700,-35.2737) with a radius of 0.032 arc min
This is 1.371 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 954304
find_uvot_ag.pl vrs. 2017-02-17 fem started at 200205d22h02m43s844368usUT
Observation start time is 2020-02-05T06:38:35.3
Examining file ./954304_g163_uvot_catalog_srclist.fits
The exposure ID is 602577515
The exposure is 249.946 sec.
The bin size is 2 pixels
The filter is UVW2
There are 50 detected source(s) for 954304_g163
Aspect correction adds -0.00060 degrees (-0.144 sec of time = -1.76 arc sec) to RA
Aspect correction adds -0.00057 degrees (-2.06 arcsec) to Dec
Total aspect correction is 2.71 arcsec
Star catalogs centered at 130.1696 , -35.2429 with radius 8.81 arc min.
n_usno: 3174 n_gsc: 0
*** WARNING -- bright star catalog has 6 entries brighter than 12 mag
The brightest has mag 3.99886
RA DEC Mag Color
bright star 0: 130.18156 (08:40:43.58) -35.32493 (-35:19:29.8) 11.97 USNO-V
bright star 1: 130.04964 (08:40:11.91) -35.18566 (-35:11:08.4) 11.77 USNO-V
bright star 2: 130.02559 (08:40:06.14) -35.30835 (-35:18:30.1) 4.00 USNO-V
bright star 3: 130.25496 (08:41:01.19) -35.35914 (-35:21:32.9) 10.87 USNO-V
bright star 4: 130.08375 (08:40:20.10) -35.12344 (-35:07:24.4) 9.95 USNO-V
bright star 5: 130.21918 (08:40:52.60) -35.37805 (-35:22:41.0) 10.14 USNO-V
Mean distance difference (CAT_DELTA) for 36 matched entries is 0.958" for 954304_g163
Mean and std. dev of mag. difference (MAG_DELTA) are 3.431 and 0.958 for 954304_g163
Found 14 entries without IDs and 2 entries that are acceptable afterglow candidates for 954304_g163.
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.
2 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=130.1710 (08:40:41.04) DEC=-35.2450 (-35:14:42.0)
XRT distances are from RA=130.1700 (08:40:40.81) DEC=-35.2737 (-35:16:25.2)
*** WARNING 28 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 954304_g163 with 5x5 stamp
ra=130.17077 (08:40:40.99) dec=-35.27394 (-35:16:26.2) +/- 1.1" mag=18.41+/-0.35
dist=2.4 REFID=20
src: 0 distr. of nearby unmatched sources: 0 0 0 0 0
Found 6 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
130.1646 -35.2729 18.6 -1 USNO-B1 19.25 17.71 18.39
130.1726 -35.2734 5.7 -1 USNO-B1 21.39 19.40 20.28
130.1744 -35.2736 10.7 -1 USNO-B1 20.00 19.12 19.51
130.1695 -35.2745 4.2 -1 USNO-B1 18.19 16.50 17.25
130.1771 -35.2746 18.6 -1 USNO-B1 20.93 19.48 20.12
130.1668 -35.2778 18.3 -1 USNO-B1 17.64 16.06 16.76
##### This source remains a candidate #####
It has no entries within 4" or brighter than 13 mag
-----------------
Entry 14 in the list of sources is a candidate afterglow for 954304_g163 with 3x3 stamp
ra=130.18751 (08:40:45.00) dec=-35.21139 (-35:12:41.0) +/- 1.1" mag=18.62+/-0.35
dist=230.0 REFID=44
*** The position of this source is inconsistent with the XRT position.
The position is 130.4 arc sec from the BAT position.
src: 14 distr. of nearby unmatched sources: 0 0 0 0 0
Found 10 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
130.1831 -35.2141 16.2 -1 USNO-B1 18.49 16.54 17.40
130.1891 -35.2138 9.9 -1 USNO-B1 19.16 17.41 18.19
130.1873 -35.2120 2.3 -1 USNO-B1 16.38 15.10 15.67 *
130.1822 -35.2095 16.9 -1 USNO-B1 18.71 17.35 17.95
130.1938 -35.2127 19.1 -1 USNO-B1 20.27 18.72 19.41
130.1932 -35.2108 17.0 -1 USNO-B1 19.91 18.37 19.05
130.1898 -35.2092 10.2 -1 USNO-B1 99.99 19.09 99.99
130.1885 -35.2080 12.6 -1 USNO-B1 17.95 16.39 17.08
130.1861 -35.2071 16.1 -1 USNO-B1 16.88 14.50 15.56
130.1901 -35.2084 13.3 -1 USNO-B1 18.70 17.56 18.07
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 2 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
130.1726 -35.2734 7.6 -1 USNO-B1 21.39 19.40 20.28
130.1695 -35.2745 3.2 -1 USNO-B1 18.19 16.50 17.25
The closest star is 3.23" away.
List UVOT sources within 10" of the XRT position:
Unmatched source ra=130.17077 (08:40:40.99) dec=-35.27394 (-35:16:26.2) +/- 1.1" mag=18.41+/-0.35 dist=2.4 REFID=20
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 10.0, 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 1 of trigger 954304
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: unexpected filter
SRCLIST PROBLEM: unexpected filter
See notes for more details.
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
1 source(s) near the XRT position were rejected as afterglow candidate(s). See
notes for details.
------ Start for Possible Stand-alone Circular ----
In response to GRB200205 (Swift/BAT trigger 954304) at 06:35:51 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the UVW2 filter starting
139 seconds after the BAT trigger. No credible afterglow candidate has been
found in the initial data products. The 2.7'x2.7' sub-image processing FAILED
because of unexpected filter. Processing for the 8'x8' region for the list of
sources generated on-board FAILED because of unexpected filter. No correction
has been made for the large, but uncertain, extinction expected.
------- notes for trigger 954304 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 200205d22h03m08s636516usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=954304
-expid=602577515 -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/954304/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
Unreliable extinction found for xrt position.
*** Warning -- Processing cannot handle uvw2 filter.
XRT position found for srclist. XRT position found for Genie image. BAT
position found.
UVOT exposure began at MET 602577515.32912 or about 2020:036:06:38:30 UT
Found 3170 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 28% of the srclist region. Found 50 sources in
srclist catalog. Found 14 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
10.00 mag.
Found 6 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. Found 2 Genie image source(s) without IDs. There are 0 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
10.00 mag. Found 228 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 34% of the Genie image region.
Found 1 srclist source(s) within 10.0" of the XRT position.
The brightest such source has ra= 130.1708 dec= -35.2739 mag=18.41 sep=2.36".
The closest srclist source has ra= 130.1708 dec= -35.2739 mag=18.41 sep=2.36".
Found 1 Genie source(s) within 10.0" of the XRT position. The brightest such
source has ra= 130.1706 dec= -35.2735 mag=16.89 sep=1.70". The closest Genie
source has ra= 130.1706 dec= -35.2735 mag=16.89 sep=1.70".
Report rejected UVOT sources within 10 arcsec XRT position.
Such sources are usually NOT the afterglow.
****THIS SOURCE NEAR XRT POSITION WAS REJECTED--USE WITH CAUTION****
UVOT took a finding chart exposure of 250 seconds with the UVW2 filter starting
139 seconds after the BAT trigger. There is a candidate afterglow in the
rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 08:40:40.94 = 130.17058
DEC(J2000) = -35:16:24.6 = -35.27349
with a 90%-confidence error radius of about 0.77 arc sec. This position is 1.70
arc sec. from the center of the XRT error circle. The estimated magnitude is
16.89 with a 1-sigma error of about 0.16. No correction has been made for the
large, but uncertain, extinction expected.
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?
602577515 139 UVW2 130.17077 -35.27394 18.41/10.0 2.4 srclist Yes
602577515 139 UVW2 130.17058 -35.27349 16.89/10.0 1.7 image Yes
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------