image overlap message for exposure 2 of trigger 810300
uvot_overlap.pl vrs. 2010-12-20b fem started at 180216d07h22m35s706106usUT
The observation of trigger 810300 started 2018-02-16T07:16:37.7
Examining file 810300_g5953_uvot_sky_image.fits
The exposure ID is 540458197
The exposure time is 149.846 (seconds)
The filter is WHITE.
The uvot region is centered at (254.5508,-42.7066) with a roll angle of 89.3
It is square with sides of 2.68 arc min. for an area of 7.17 sq arc min
The BAT error circle is centered at (254.5450,-42.7090) with a radius of 3.000 arc min
This is 0.293 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 7.17 sq. arc min or 0.25 of the BAT error circle
The XRT error circle is centered at (254.5524,-42.6988) with a radius of 0.063 arc min
This is 0.472 arc min from the center of the uvot region
The area of the XRT error circle is 0.013 sq. arc min
The UVOT/XRT overlap is 0.013 sq. arc min or 1.00 of the XRT error circle
image afterglow message for exposure 2 of trigger 810300
find_uvot_ag.pl vrs. 2017-02-17 fem started at 180216d07h22m36s599877usUT
Observation start time is 2018-02-16T07:16:37.7
Examining file 810300_g5953_uvot_catalog_image.fits
The exposure ID is 540458197
The exposure is 149.846 sec.
The bin size is 2 pixels
The filter is WHITE
There are 34 detected source(s) for 810300_g5953
Aspect correction adds -0.00009 degrees (-0.023 sec of time = -0.25 arc sec) to RA
Aspect correction adds 0.00029 degrees ( 1.04 arcsec) to Dec
Total aspect correction is 1.07 arcsec
Star catalogs centered at 254.5484 , -42.7051 with radius 2.71 arc min.
n_usno: 292 n_gsc: 805
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 10.34026
RA DEC Mag Color
bright star 0: 254.60022 (16:58:24.05) -42.72814 (-42:43:41.3) 10.34 USNO-V
bright star 1: 254.52971 (16:58:07.13) -42.74789 (-42:44:52.4) 11.77 USNO-V
Mean distance difference (CAT_DELTA) for 33 matched entries is 0.621" for 810300_g5953
Mean and std. dev of mag. difference (MAG_DELTA) are 1.817 and 0.640 for 810300_g5953
Found 4 entries without IDs and 4 entries that are acceptable afterglow candidates for 810300_g5953.
Acceptable entries have no ID, XRT distances < 9.5", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
0 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=254.5450 (16:58:10.80) DEC=-42.7090 (-42:42:32.4)
XRT distances are from RA=254.5524 (16:58:12.58) DEC=-42.6988 (-42:41:55.7)
-----------------
Entry 15 in the list of sources is a candidate afterglow for 810300_g5953 with genie
ra=254.53411 (16:58:08.19) dec=-42.72362 (-42:43:25.0) +/- 0.6" mag=18.66+/-0.15
dist=101.6 REFID=34 major=1.0 minor=0.9 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 60.0 arc sec from the BAT position.
This source is near the edge of image (0.942)
Found 15 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
254.5402 -42.7205 19.6 -1 USNO-B1 15.79 14.18 14.89
254.5358 -42.7195 15.6 -1 USNO-B1 18.52 15.08 16.61
254.5333 -42.7218 6.7 -1 USNO-B1 99.99 16.77 99.99
254.5323 -42.7213 9.5 -1 USNO-B1 15.91 14.21 14.96
254.5360 -42.7234 5.1 -1 USNO-B1 99.99 18.42 99.99 *
254.5352 -42.7234 2.9 -1 USNO-B1 18.54 19.36 19.00 *
254.5318 -42.7221 8.1 -1 USNO-B1 99.99 16.34 99.99
254.5339 -42.7233 1.2 -1 USNO-B1 17.98 15.37 16.53 *
254.5300 -42.7272 16.8 -1 USNO-B1 20.61 17.95 19.13
254.5401 -42.7205 19.4 -1 GSC2.3 14.36 15.64 14.53
254.5354 -42.7195 15.1 -1 GSC2.3 15.84 18.68 16.85
254.5310 -42.7190 18.7 -1 GSC2.3 19.68 21.70 99.99
254.5322 -42.7214 9.4 -1 GSC2.3 14.41 15.94 14.81
254.5342 -42.7237 0.5 -1 GSC2.3 16.50 18.11 17.72 *
254.5299 -42.7272 17.2 -1 GSC2.3 18.45 20.37 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 mag
-----------------
Entry 18 in the list of sources is a candidate afterglow for 810300_g5953 with genie
ra=254.52110 (16:58:05.06) dec=-42.70474 (-42:42:17.1) +/- 0.7" mag=19.51+/-0.18
dist=85.6 REFID=20 major=0.9 minor=0.9 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 65.1 arc sec from the BAT position.
This source is near the edge of image (0.911)
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
254.5243 -42.7088 16.9 -1 USNO-B1 19.84 14.38 16.80
254.5210 -42.7045 1.0 -1 USNO-B1 18.89 16.29 17.44 *
254.5208 -42.7018 10.6 -1 USNO-B1 18.71 16.93 17.72
254.5205 -42.7042 2.7 -1 USNO-B1 99.99 17.92 99.99 *
254.5203 -42.7040 3.5 -1 USNO-B1 19.47 17.47 18.36 *
254.5243 -42.7089 17.3 -1 GSC2.3 99.99 21.77 99.99
254.5210 -42.7047 0.2 -1 GSC2.3 16.67 18.71 99.99 *
254.5207 -42.7017 10.8 -1 GSC2.3 16.97 18.95 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 mag
-----------------
Entry 26 in the list of sources is a candidate afterglow for 810300_g5953 with genie
ra=254.51288 (16:58:03.09) dec=-42.71655 (-42:42:59.6) +/- 0.7" mag=19.39+/-0.17
dist=122.5 REFID=28 major=0.8 minor=0.8 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 89.2 arc sec from the BAT position.
This source is near the edge of image (0.988)
Found 15 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
254.5195 -42.7155 17.8 -1 USNO-B1 99.99 17.91 99.99
254.5149 -42.7123 16.1 -1 USNO-B1 99.99 19.02 99.99
254.5146 -42.7125 15.5 -1 USNO-B1 99.99 17.76 99.99
254.5148 -42.7177 6.6 -1 USNO-B1 21.29 18.66 19.83
254.5131 -42.7163 1.1 -1 USNO-B1 18.79 16.15 17.32 *
254.5119 -42.7142 9.0 -1 USNO-B1 16.94 14.59 15.63
254.5097 -42.7126 16.6 -1 USNO-B1 16.55 20.46 18.72
254.5064 -42.7148 18.1 -1 USNO-B1 17.54 15.31 16.30
254.5192 -42.7156 17.2 -1 GSC2.3 18.64 21.06 99.99
254.5149 -42.7123 16.1 -1 GSC2.3 19.41 21.16 99.99
254.5147 -42.7177 6.4 -1 GSC2.3 20.35 99.99 99.99
254.5119 -42.7142 8.8 -1 GSC2.3 15.10 17.04 15.79
254.5128 -42.7167 0.5 -1 GSC2.3 17.08 19.21 99.99 *
254.5096 -42.7126 16.7 -1 GSC2.3 15.01 16.75 15.36
254.5062 -42.7151 18.5 -1 GSC2.3 15.78 17.81 16.39
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 mag
-----------------
Entry 31 in the list of sources is a candidate afterglow for 810300_g5953 with genie
ra=254.57606 (16:58:18.25) dec=-42.69161 (-42:41:29.8) +/- 0.6" mag=17.63+/-0.14
dist=67.7 REFID=7 major=0.8 minor=0.8 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 103.3 arc sec from the BAT position.
This source is near the edge of image (0.971)
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
254.5692 -42.6894 19.8 -1 USNO-B1 18.46 16.41 17.32
254.5768 -42.6920 2.3 -1 USNO-B1 99.99 12.73 99.99 *
254.5789 -42.6941 11.8 -1 USNO-B1 17.81 14.86 16.17
254.5774 -42.6921 4.0 -1 USNO-B1 17.87 13.89 15.66 *
254.5790 -42.6939 11.5 -1 USNO-B1 18.52 16.41 17.34
254.5784 -42.6926 7.1 -1 USNO-B1 99.99 16.37 99.99
254.5759 -42.6917 0.3 -1 GSC2.3 14.82 17.85 15.71 *
254.5789 -42.6941 11.8 -1 GSC2.3 16.79 19.24 99.99
254.5786 -42.6925 7.4 -1 GSC2.3 16.24 18.41 17.07
254.5800 -42.6871 19.2 -1 GSC2.3 18.31 20.07 99.99
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 5.25" or brighter than 12 mag
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
There are 98993.164 counts in the bkg source region of 5278.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 18.756 counts/pixel (5-sig UL in 4" is 19.76 mag) for 810300_g5953
There are 3931.3750 counts in the xrt source region of 201.00000 pixels.
Rate in xrt region with 8 arcsec radius is 19.559 counts/pixel for 810300_g5953
There are 18300.629 counts in the xrt_bkg source region of 978.00000 pixels.
Rate in xrt_bkg region from 15 to 25 arcsec is 18.712 counts/pixel (5-sig UL in 4" is 19.76 mag) for 810300_g5953
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 20.31, XRT distances < 9.5",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 810300_540458197_180216d07h22m36s599877usUT_bkg.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(254.5508,-42.7066,45")
fk5;-circle(254.550078544801,-42.7148172310736,6")
fk5;-circle(254.54901622987,-42.702578998101,6")
fk5;-circle(254.53674782533,-42.7031792935824,6")
fk5;-circle(254.555501276505,-42.7126075434075,6")
fk5;-circle(254.535416495452,-42.7139792451321,6")
fk5;-circle(254.549880436062,-42.7176457154929,6")
fk5;-circle(254.559469495375,-42.7040274920408,6")
fk5;-circle(254.562463901448,-42.7116063064706,6")
fk5;-circle(254.547941460901,-42.6954308485411,6")
fk5;-circle(254.561001306679,-42.7009676393102,6")
fk5;-circle(254.544060032405,-42.6933551419388,6")
fk5;-circle(254.567646774176,-42.7023507708474,6")
Region file: 810300_540458197_180216d07h22m36s599877usUT_xrt.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(254.55242,-42.69881,8")
Region file: 810300_540458197_180216d07h22m36s599877usUT_xrt_bkg.region
# Region file format: DS9 version 3.0
global color=red font="helvetica 10 normal" select=1 edit=1 move=1 delete=1 include=1 fixed=0 source
fk5;circle(254.55242,-42.69881,25")
fk5;-circle(254.55242,-42.69881,15")
fk5;-circle(254.54901622987,-42.702578998101,6")
fk5;-circle(254.559469495375,-42.7040274920408,6")
fk5;-circle(254.547941460901,-42.6954308485411,6")
fk5;-circle(254.561001306679,-42.7009676393102,6")
fk5;-circle(254.544060032405,-42.6933551419388,6")
image paragraph message for exposure 2 of trigger 810300
SRCLIST PROBLEM: srclist filled telemetry buffer
------ Start for Possible Stand-alone Circular ----
In response to GRB180216 (Swift/BAT trigger 810300) at 05:37:23 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 5933 seconds after the BAT trigger. No credible afterglow candidate
has been found in the initial data products. The 2.7'x2.7' sub-image covers
100% of the XRT error circle. The typical 3-sigma upper limit has been about
19.6 mag. 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 mag. No correction has been made for extinction.
------- notes for trigger 810300 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 180216d07h22m37s887656usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=810300
-expid=540458197 -msg_image
Results from standard processing of UVOT TDRSS data for this trigger should be
available at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/810300/
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 540458197.6613 or about 2018:047:07:16:32 UT
Found 1555 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 25% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 58 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 34 source(s) in Genie image catalog. Found 4 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.31 mag. Found 288 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
27% of the Genie image region.
Genie image analysis:
Found 98993.2 counts in the large background region of 5278.0 pixels or a rate
of 18.756 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 19.76 mag. for a
4-arcsec aperture.
Found 3931.4 counts in the XRT position region of 201.0 pixels or a rate of
19.559 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is 1.135 +/- 0.457 (1-sigma) cps or
19.64 mag and a range from 19.28 to 20.20 mag. The 3-sigma UL at the XRT
position is 2.507 cps or 18.78 mag. The number of srclist sources filled the
available telemetry. The weakest source detected was 19.09 mag. The closest
srclist source has ra= 254.5492 dec= -42.7026 mag=14.63 sep=16.10". The closest
Genie source has ra= 254.5490 dec= -42.7026 mag=14.92 sep=16.28".
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?
540458197 5933 WHITE srclist found no candidates.
540458197 5933 WHITE image found no candidates.
List afterglow candidates for other finding charts.
540456974 4710 WHITE srclist found no candidates.
540456974 4710 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: -42.69881
GRB_ERROR: 9.5
GRB_RA: 254.55242
IMAGE_START_TIME: 07:16:32
MAGNITUDE: 18.8
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT