srclist overlap message for exposure 1 of trigger 020147
uvot_overlap.pl vrs. 2009-10-28 fem started at 100910d03h35m29s958417usUT
The observation of trigger 020147 started 2010-09-09T12:19:48.0
Examining file ./020147_g11694_uvot_sky_srclist.fits
The exposure ID is 305727588
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (73.9807,54.6486) with a roll angle of 83.8
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 (73.9505,54.6544) with a radius of 2.000 arc min
This is 1.106 arc min from the center of the uvot region
The area of the BAT error circle is 12.57 sq. arc min
The uvot/BAT overlap is 12.57 sq. arc min or 1.00 of the BAT error circle
The XRT error circle is centered at (73.9476,54.6597) with a radius of 0.090 arc min
This is 1.329 arc min from the center of the uvot region
The area of the XRT error circle is 0.025 sq. arc min
The uvot/XRT overlap is 0.025 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 020147
find_uvot_ag.pl vrs. 2010-08-31 fem started at 100910d03h35m31s053040usUT
Observation start time is 2010-09-09T12:19:48.0
Examining file ./020147_g11694_uvot_catalog_srclist.fits
The exposure ID is 305727588
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 020147_g11694
*** WARNING -- the sources have filled the available telemetry buffer (190).
Dimmest detected source in 020147_g11694 has mag 19.43
Star catalogs centered at 73.9757 , 54.6444 with radius 6.19 arc min.
n_usno: 1136 n_gsc: 31
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.56768
RA DEC Mag Color
bright star 0: 73.97309 (04:55:53.54) 54.74180 (+54:44:30.5) 11.57 USNO-V
Mean distance difference (CAT_DELTA) for 184 matched entries is 0.573" for 020147_g11694
Mean and std. dev of mag. difference (MAG_DELTA) are 1.238 and 0.472 for 020147_g11694
Found 8 entries without IDs and 4 entries that are acceptable afterglow candidates for 020147_g11694.
Acceptable entries have no ID, XRT distances < 10", and are > ~(80 - 10*(mag-6))" from any bright star.
Magnitude criteria will be applied later.
BAT distances are from RA=73.9505 (04:55:48.12) DEC=54.6544 (+54:39:15.8)
XRT distances are from RA=73.9476 (04:55:47.42) DEC=54.6597 (+54:39:34.8)
-----------------
Entry 19 in the list of sources is a candidate afterglow for 020147_g11694 with 1x1 stamp
ra=74.01258 (04:56:03.02) dec=54.64318 (+54:38:35.4) +/- 1.1" mag=19.35+/-0.35
dist=147.9 REFID=181
*** The position of this source is inconsistent with the XRT position.
The position is 80.2 arc sec from the BAT position.
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
74.0034 54.6422 19.4 -1 USNO-B1 19.52 18.86 19.15
74.0136 54.6433 2.1 -1 USNO-B1 18.11 18.16 18.14 *
74.0140 54.6437 3.5 -1 USNO-B1 18.13 99.99 99.99 *
74.0147 54.6444 6.3 -1 USNO-B1 19.11 18.89 18.99
74.0167 54.6418 10.0 108 USNO-B1 17.55 17.73 17.65
74.0216 54.6425 19.0 -1 USNO-B1 19.43 20.02 19.76
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 13
-----------------
Entry 47 in the list of sources is a candidate afterglow for 020147_g11694 with 3x3 stamp
ra=73.92965 (04:55:43.12) dec=54.67057 (+54:40:14.0) +/- 1.1" mag=18.76+/-0.35
dist=54.2 REFID=104
*** The position of this source is inconsistent with the XRT position.
The position is 124.6 arc sec from the BAT position.
Found 8 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
73.9347 54.6669 16.8 27 USNO-B1 15.87 16.26 16.09
73.9361 54.6693 14.1 153 USNO-B1 17.81 17.79 17.80
73.9380 54.6719 18.1 -1 USNO-B1 20.56 20.72 20.65
73.9290 54.6710 2.1 -1 USNO-B1 16.16 16.11 16.14 *
73.9313 54.6735 11.3 -1 USNO-B1 15.13 19.19 17.39
73.9302 54.6740 12.5 -1 USNO-B1 16.92 19.57 18.40
73.9279 54.6730 9.5 1 USNO-B1 13.25 13.25 13.25
73.9280 54.6730 9.5 1 GSC2.2 12.47 13.62 12.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 13
-----------------
Entry 75 in the list of sources is a candidate afterglow for 020147_g11694 with 1x1 stamp
ra=74.01882 (04:56:04.52) dec=54.68406 (+54:41:02.6) +/- 1.1" mag=18.29+/-0.35
dist=172.3 REFID=172
*** The position of this source is inconsistent with the XRT position.
The position is 158.7 arc sec from the BAT position.
Found 6 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
74.0198 54.6839 2.1 17 USNO-B1 15.16 15.45 15.32 *
74.0162 54.6857 8.0 151 USNO-B1 18.14 18.04 18.08
74.0178 54.6878 13.8 -1 USNO-B1 18.62 18.51 18.56
74.0235 54.6879 16.9 -1 USNO-B1 20.18 99.99 99.99
74.0246 54.6877 17.8 -1 USNO-B1 19.70 19.97 19.85
74.0200 54.6838 2.7 17 GSC2.2 14.15 16.10 14.67 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 13
-----------------
Entry 113 in the list of sources is a candidate afterglow for 020147_g11694 with 1x1 stamp
ra=74.00862 (04:56:02.07) dec=54.59678 (+54:35:48.4) +/- 1.1" mag=19.09+/-0.35
dist=259.7 REFID=168
*** The position of this source is inconsistent with the XRT position.
The position is 197.2 arc sec from the BAT position.
Found 6 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
74.0134 54.6010 18.2 129 USNO-B1 17.11 17.20 17.16
74.0008 54.5981 16.9 -1 USNO-B1 19.06 20.52 19.87
74.0053 54.5985 9.2 112 USNO-B1 17.38 17.41 17.39
74.0012 54.5974 15.7 -1 USNO-B1 18.95 19.00 18.98
74.0076 54.5967 2.1 128 USNO-B1 16.53 16.82 16.69 *
74.0102 54.5949 7.6 -1 USNO-B1 20.34 20.09 20.20
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 13
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
73.9509 54.6594 6.9 -1 USNO-B1 19.11 19.27 19.19
The closest star is 6.88" away.
List UVOT sources within 10" of the XRT position:
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 < 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 020147
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: partial overlap
SRCLIST PROBLEM: srclist filled telemetry buffer
See notes for more details.
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 GRB100909 (Swift/BAT trigger 020147) at 09:04:00 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 11687 seconds after the INTEGRAL trigger. No credible afterglow
candidate has been found in the initial data products. The 2.7'x2.7' sub-image
covers 68% of the XRT error circle. The typical 3-sigma upper limit has been
about 19.6 mag. The coverage of the XRT error circle by the 8'x8' region for
the list of sources generated on-board is uncertain because the large number of
sources filled the available telemetry. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.51.
------- notes for trigger 020147 ------
uvot_gcn_auto.pl vrs. 2010-09-01 fem at 100910d03h36m20s967472usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=020147
-expid=305727588 -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/020147/
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 305727588.02668 or about 2010:252:12:19:46 UT
Found 1132 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 20% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 8 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 19.22 mag.
Found 30 source(s) in Genie image catalog. 1 source(s) are within 10" of the
xrt position. Found 0 Genie image source(s) without IDs. There are 0 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.64 mag. Found 212 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 21% of the Genie image region.
Genie image analysis:
Found 57834.0 counts in the large background region of 5602.0 pixels or a rate
of 10.324 counts/pixel in a radius of 45.0 arcsec. Based on this background,
the typical 5-sigma UL at a random point in the Genie image is 20.08 mag. for a
4-arcsec aperture. The number of srclist sources filled the available
telemetry. The weakest source detected was 19.43 mag. The closest srclist
source has ra= 73.9550 dec= 54.6619 mag=18.28 sep=17.28".
Found 1 Genie source(s) within 10.0" of the XRT position. The brightest such
source has ra= 73.9510 dec= 54.6593 mag=20.69 sep=7.23". The closest Genie
source has ra= 73.9510 dec= 54.6593 mag=20.69 sep=7.23".
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 150 seconds with the White filter
starting 11687 seconds after the INTEGRAL trigger. There is a candidate
afterglow in the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 04:55:48.24 = 73.95098
DEC(J2000) = +54:39:33.3 = 54.65926
with a 90%-confidence error radius of about 0.81 arc sec. The estimated
magnitude is 20.69 with a 1-sigma error of about 0.23. No correction has been
made for the expected extinction corresponding to E(B-V) of 0.51.
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?
305727588 11687 WHITE srclist found no candidates.
305727588 11687 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------