srclist overlap message for exposure 2 of trigger 980513
uvot_overlap.pl vrs. 2010-12-20b fem started at 200702d07h25m35s486885usUT
The observation of trigger 980513 started 2020-07-02T07:15:03.4
Examining file ./980513_g324_uvot_sky_srclist.fits
The exposure ID is 615366903
The exposure time is undefined.
The filter is U.
The uvot region is centered at (274.4667,-16.1635) with a roll angle of 315.7
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 (274.4710,-16.1670) with a radius of 3.000 arc min
This is 0.326 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 (274.5017,-16.1317) with a radius of 0.050 arc min
This is 2.774 arc min from the center of the uvot region
The area of the XRT error circle is 0.008 sq. arc min
The UVOT/XRT overlap is 0.008 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 2 of trigger 980513
find_uvot_ag.pl vrs. 2017-02-17 fem started at 200702d07h25m49s219563usUT
Observation start time is 2020-07-02T07:15:03.4
Examining file ./980513_g324_uvot_catalog_srclist.fits
The exposure ID is 615366903
The exposure is 250.000 sec.
The bin size is 2 pixels
The filter is U
There are 190 detected source(s) for 980513_g324
*** WARNING -- the sources have filled the available telemetry buffer (190).
srclist_overlap returned: bat_overlap 1.000
srclist_overlap returned: xrt_overlap 1.000
Dimmest detected source in 980513_g324 has mag 18.04
Aspect correction adds -0.00054 degrees (-0.129 sec of time = -1.86 arc sec) to RA
Aspect correction adds 0.00079 degrees ( 2.85 arcsec) to Dec
Total aspect correction is 3.41 arcsec
Star catalogs centered at 274.4585 , -16.1655 with radius 8.44 arc min.
n_usno: 3188 n_gsc: 0
*** WARNING -- bright star catalog has 14 entries brighter than 12 mag
The brightest has mag 9.19162
RA DEC Mag Color
bright star 0: 274.43506 (18:17:44.41) -16.19148 (-16:11:29.3) 9.70 USNO-V
bright star 1: 274.44522 (18:17:46.85) -16.20754 (-16:12:27.2) 11.23 USNO-V
bright star 2: 274.49509 (18:17:58.82) -16.11858 (-16:07:06.9) 10.60 USNO-V
bright star 3: 274.45380 (18:17:48.91) -16.23147 (-16:13:53.3) 11.36 USNO-V
bright star 4: 274.45239 (18:17:48.57) -16.08993 (-16:05:23.8) 10.81 USNO-V
bright star 5: 274.37364 (18:17:29.67) -16.18432 (-16:11:03.5) 10.86 USNO-V
bright star 6: 274.55214 (18:18:12.51) -16.14408 (-16:08:38.7) 11.10 USNO-V
bright star 7: 274.49262 (18:17:58.23) -16.25657 (-16:15:23.6) 11.16 USNO-V
bright star 8: 274.40657 (18:17:37.58) -16.25165 (-16:15:05.9) 11.65 USNO-V
bright star 9: 274.37822 (18:17:30.77) -16.24243 (-16:14:32.8) 11.02 USNO-V
bright star 10: 274.39103 (18:17:33.85) -16.25744 (-16:15:26.8) 10.62 USNO-V
bright star 11: 274.37036 (18:17:28.89) -16.24134 (-16:14:28.8) 9.19 USNO-V
bright star 12: 274.55763 (18:18:13.83) -16.23140 (-16:13:53.1) 11.88 USNO-V
bright star 13: 274.34869 (18:17:23.69) -16.21661 (-16:12:59.8) 11.48 USNO-V
Mean distance difference (CAT_DELTA) for 142 matched entries is 0.955" for 980513_g324
Mean and std. dev of mag. difference (MAG_DELTA) are 1.825 and 0.661 for 980513_g324
Found 50 entries without IDs and 3 entries that are acceptable afterglow candidates for 980513_g324.
Acceptable entries have no ID, XRT distances < 7.5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
38 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=274.4710 (18:17:53.04) DEC=-16.1670 (-16:10:01.2)
XRT distances are from RA=274.5017 (18:18:00.40) DEC=-16.1317 (-16:07:54.2)
*** WARNING 26 per cent of entries have no IDs.
-----------------
Entry 4 in the list of sources is a candidate afterglow for 980513_g324 with 3x3 stamp
ra=274.48587 (18:17:56.61) dec=-16.16416 (-16:09:51.0) +/- 1.1" mag=15.01+/-0.35
dist=128.9 REFID=72
*** The position of this source is inconsistent with the XRT position.
The position is 52.4 arc sec from the BAT position.
src: 4 distr. of nearby unmatched sources: 0 0 0 0 0
Found 3 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
274.4837 -16.1670 12.5 -1 USNO-B1 19.97 16.88 18.25
274.4847 -16.1615 10.5 -1 USNO-B1 18.66 16.34 17.37
274.4853 -16.1644 2.3 -1 USNO-B1 12.93 12.16 12.50 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 5 in the list of sources is a candidate afterglow for 980513_g324 with 1x1 stamp
ra=274.48705 (18:17:56.89) dec=-16.17454 (-16:10:28.3) +/- 1.1" mag=17.24+/-0.35
dist=162.2 REFID=120
*** The position of this source is inconsistent with the XRT position.
The position is 61.8 arc sec from the BAT position.
src: 5 distr. of nearby unmatched sources: 1 1 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
274.4819 -16.1761 18.7 -1 USNO-B1 19.00 15.28 16.93
274.4856 -16.1730 7.6 -1 USNO-B1 19.58 16.34 17.78
274.4876 -16.1740 2.8 -1 USNO-B1 14.44 12.75 13.50 *
274.4927 -16.1743 19.5 -1 USNO-B1 14.52 12.77 13.55 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 7 in the list of sources is a candidate afterglow for 980513_g324 with 1x1 stamp
ra=274.48855 (18:17:57.25) dec=-16.17346 (-16:10:24.4) +/- 1.1" mag=17.09+/-0.35
dist=156.9 REFID=155
*** The position of this source is inconsistent with the XRT position.
The position is 65.0 arc sec from the BAT position.
src: 7 distr. of nearby unmatched sources: 1 1 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
274.4856 -16.1730 10.4 -1 USNO-B1 19.58 16.34 17.78
274.4876 -16.1740 3.8 -1 USNO-B1 14.44 12.75 13.50 *
274.4929 -16.1711 17.3 -1 USNO-B1 20.29 17.43 18.70
274.4927 -16.1743 14.6 -1 USNO-B1 14.52 12.77 13.55 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
Found 3 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
274.4995 -16.1332 9.0 -1 USNO-B1 19.68 16.75 18.05
274.5027 -16.1330 5.8 -1 USNO-B1 19.41 17.21 18.19
274.5037 -16.1305 8.2 -1 USNO-B1 19.02 16.98 17.89
The closest star is 5.83" away.
List UVOT sources within 10" of the XRT position:
Matched source ra=274.50128 (18:18:00.31) dec=-16.13445 (-16:08:04.0) +/- 1.1" mag=17.40+/-0.35 dist=9.9 REFID=123
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 18.12, XRT distances < 7.5",
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 2 of trigger 980513
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: srclist filled telemetry buffer
See notes for more details.
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
------ Start for Possible Stand-alone Circular ----
In response to GRB200702 (Swift/BAT trigger 980513) at 07:09:38 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of nominal 250.000 seconds with the U filter
starting 299 seconds after the BAT trigger. No credible afterglow candidate has
been found in the initial data products. Data from the 2.7'x2.7' sub-image are
not available at this time. The 8'x8' region for the list of sources generated
on-board covers 100% of the XRT error circle. The list of sources is typically
complete to about 18.0 mag. No correction has been made for the large, but
uncertain, extinction expected.
------- notes for trigger 980513 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 200702d07h25m53s750373usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=980513
-expid=615366903 -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/980513/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
Unreliable extinction found for bat position. Unreliable extinction found for
xrt position.
*** Warning -- no exposure found, using srclist assumed value.
XRT position found for srclist. BAT position found.
UVOT exposure began at MET 615366903.44008 or about 2020:184:07:14:58 UT
Found 3184 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 31% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 50 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 18.12 mag.
The number of srclist sources filled the available telemetry. The weakest
source detected was 18.04 mag.
Found 1 srclist source(s) within 10.0" of the XRT position.
The brightest such source has ra= 274.5013 dec= -16.1345 mag=17.40 sep=9.93".
The closest srclist source has ra= 274.5013 dec= -16.1345 mag=17.40 sep=9.93".
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 nominal 250.000 seconds with the U filter
starting 299 seconds after the BAT trigger. There is a candidate afterglow in
the list of sources generated on-board at
RA(J2000) = 18:18:00.31 = 274.50128
DEC(J2000) = -16:08:04.0 = -16.13445
with a 90%-confidence error radius of about 1.10 arc sec. This position is 9.93
arc sec. from the center of the XRT error circle. The estimated magnitude is
17.40 with a 1-sigma error of about 0.35. 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?
615366903 298 U srclist found no candidates.
615366903 298 ? image data are not available.
List afterglow candidates for other finding charts.
615366691 86 WHITE srclist found no candidates.
615366691 86 WHITE image found no candidates.
------- Tokens for Quick GCN -------