image overlap message for exposure 1 of trigger 1005428
uvot_overlap.pl vrs. 2010-12-20b fem started at 201111d10h00m50s383827usUT
The observation of trigger 1005428 started 2020-11-11T09:46:27.2
Examining file ./1005428_g80_uvot_sky_image.fits
The exposure ID is 626780787
The exposure time is 149.868 (seconds)
The filter is WHITE.
The uvot region is centered at (277.6958,-6.7431) with a roll angle of 252.7
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 (277.7010,-6.7410) with a radius of 3.000 arc min
This is 0.335 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 (277.6737,-6.7548) with a radius of 0.035 arc min
This is 1.490 arc min from the center of the uvot region
The area of the XRT error circle is 0.004 sq. arc min
The UVOT/XRT overlap is 0.004 sq. arc min or 1.00 of the XRT error circle
image afterglow message for exposure 1 of trigger 1005428
find_uvot_ag.pl vrs. 2020-10-30 fem started at 201111d10h00m59s439303usUT
Observation start time is 2020-11-11T09:46:27.2
Examining file ./1005428_g80_uvot_catalog_image.fits
The exposure ID is 626780787
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 52 detected source(s) for 1005428_g80
Aspect correction adds -0.00041 degrees (-0.099 sec of time = -1.48 arc sec) to RA
Aspect correction adds -0.00129 degrees (-4.65 arcsec) to Dec
Total aspect correction is 4.88 arcsec
Star catalogs centered at 277.6957 , -6.7428 with radius 2.71 arc min.
n_usno: 583 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 50 matched entries is 0.665" for 1005428_g80
Mean and std. dev of mag. difference (MAG_DELTA) are 2.001 and 0.933 for 1005428_g80
Found 6 entries without IDs and 6 entries that are acceptable afterglow candidates for 1005428_g80.
Acceptable entries have no ID, XRT distances < 5.25", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
Magnitude criteria will be applied later.
BAT distances are from RA=277.7010 (18:30:48.24) DEC=-6.7410 (-06:44:27.6)
XRT distances are from RA=277.6737 (18:30:41.69) DEC=-6.7548 (-06:45:17.2)
-----------------
Entry 24 in the list of sources is a candidate afterglow for 1005428_g80 with genie
ra=277.68679 (18:30:44.83) dec=-6.73474 (-06:44:05.0) +/- 0.7" mag=18.98+/-0.16
dist=86.0 REFID=21 major=1.5 minor=1.2 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 55.6 arc sec from the BAT position.
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
277.6916 -6.7359 17.9 -1 USNO-B1 99.99 17.59 99.99
277.6915 -6.7355 17.2 -1 USNO-B1 18.73 16.61 17.55
277.6874 -6.7400 19.1 -1 USNO-B1 19.89 16.11 17.79
277.6877 -6.7384 13.5 -1 USNO-B1 19.29 19.30 19.30
277.6875 -6.7389 15.0 -1 USNO-B1 19.13 16.98 17.94
277.6863 -6.7367 7.3 -1 USNO-B1 99.99 18.18 99.99
277.6899 -6.7332 12.4 -1 USNO-B1 99.99 14.50 99.99
277.6869 -6.7356 3.1 -1 USNO-B1 99.99 16.16 99.99 *
277.6883 -6.7341 5.9 -1 USNO-B1 17.84 13.06 15.18
277.6869 -6.7352 1.6 -1 USNO-B1 17.04 14.41 15.58 *
277.6889 -6.7331 9.6 -1 USNO-B1 15.70 15.75 15.73
277.6884 -6.7335 7.2 -1 USNO-B1 17.35 12.81 14.83
277.6874 -6.7334 5.2 -1 USNO-B1 99.99 14.09 99.99
277.6868 -6.7331 5.9 -1 USNO-B1 19.81 99.99 99.99
277.6825 -6.7377 18.6 -1 USNO-B1 19.06 16.84 17.82
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 mag
-----------------
Entry 25 in the list of sources is a candidate afterglow for 1005428_g80 with genie
ra=277.70280 (18:30:48.67) dec=-6.72553 (-06:43:31.9) +/- 0.6" mag=16.60+/-0.14
dist=148.0 REFID=8 major=1.5 minor=1.1 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 56.1 arc sec from the BAT position.
Found 13 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
277.7016 -6.7302 17.5 -1 USNO-B1 16.91 13.97 15.28
277.7020 -6.7287 11.8 -1 USNO-B1 17.27 14.88 15.94
277.7049 -6.7303 18.7 -1 USNO-B1 15.32 12.69 13.86
277.7052 -6.7297 17.1 -1 USNO-B1 20.38 12.40 15.94
277.7048 -6.7293 15.4 -1 USNO-B1 16.30 13.56 14.78
277.7010 -6.7268 8.0 -1 USNO-B1 17.75 99.99 99.99
277.7021 -6.7258 2.6 -1 USNO-B1 15.37 12.65 13.86 *
277.7022 -6.7254 2.3 -1 USNO-B1 16.00 99.99 99.99 *
277.7077 -6.7265 18.0 -1 USNO-B1 19.46 99.99 99.99
277.7077 -6.7258 17.4 -1 USNO-B1 18.27 14.10 15.95
277.7005 -6.7217 15.9 -1 USNO-B1 19.19 16.99 17.97
277.7061 -6.7237 13.6 -1 USNO-B1 17.95 14.67 16.12
277.7043 -6.7204 19.3 -1 USNO-B1 18.73 18.09 18.37
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 mag
-----------------
Entry 33 in the list of sources is a candidate afterglow for 1005428_g80 with genie
ra=277.71122 (18:30:50.69) dec=-6.72356 (-06:43:24.8) +/- 0.7" mag=19.70+/-0.20
dist=175.0 REFID=6 major=0.7 minor=0.2 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 72.6 arc sec from the BAT position.
This source is near the edge of image (0.999)
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
277.7077 -6.7265 16.2 -1 USNO-B1 19.46 99.99 99.99
277.7077 -6.7258 15.0 -1 USNO-B1 18.27 14.10 15.95
277.7061 -6.7237 18.3 -1 USNO-B1 17.95 14.67 16.12
277.7134 -6.7272 15.1 -1 USNO-B1 99.99 16.63 99.99
277.7110 -6.7230 2.2 -1 USNO-B1 17.52 15.11 16.18 *
277.7109 -6.7226 3.8 -1 USNO-B1 18.96 99.99 99.99 *
277.7157 -6.7255 17.4 -1 USNO-B1 19.38 18.23 18.74
277.7118 -6.7198 13.7 -1 USNO-B1 99.99 16.59 99.99
277.7155 -6.7213 17.4 -1 USNO-B1 19.22 17.61 18.32
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 37 in the list of sources is a candidate afterglow for 1005428_g80 with genie
ra=277.68414 (18:30:44.19) dec=-6.72728 (-06:43:38.2) +/- 0.7" mag=19.66+/-0.20
dist=105.8 REFID=12 major=1.0 minor=0.9 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 77.9 arc sec from the BAT position.
Found 13 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
277.6856 -6.7290 8.2 -1 USNO-B1 19.37 14.94 16.91
277.6889 -6.7270 17.0 -1 USNO-B1 19.32 17.74 18.44
277.6854 -6.7285 6.2 -1 USNO-B1 18.80 15.23 16.82
277.6827 -6.7308 13.6 -1 USNO-B1 19.61 16.49 17.88
277.6811 -6.7317 19.2 -1 USNO-B1 19.66 16.41 17.85
277.6848 -6.7280 3.4 -1 USNO-B1 99.99 15.28 99.99 *
277.6826 -6.7298 10.4 -1 USNO-B1 99.99 16.34 99.99
277.6879 -6.7253 15.3 -1 USNO-B1 19.47 15.77 17.41
277.6807 -6.7283 13.0 -1 USNO-B1 16.59 14.86 15.63
277.6859 -6.7227 17.6 -1 USNO-B1 18.13 15.70 16.78
277.6858 -6.7223 19.0 -1 USNO-B1 99.99 14.58 99.99
277.6837 -6.7226 17.0 -1 USNO-B1 20.37 17.42 18.73
277.6808 -6.7229 19.8 -1 USNO-B1 19.01 17.92 18.41
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 3.5" or brighter than 12 mag
-----------------
Entry 49 in the list of sources is a candidate afterglow for 1005428_g80 with genie
ra=277.68737 (18:30:44.97) dec=-6.71793 (-06:43:04.6) +/- 0.8" mag=19.77+/-0.20
dist=141.3 REFID=52 major=0.8 minor=0.6 flag=16 (aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 96.3 arc sec from the BAT position.
This source is near the edge of image (1.035)
Found 12 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
277.6891 -6.7229 19.0 -1 USNO-B1 99.99 19.97 99.99
277.6859 -6.7227 18.0 -1 USNO-B1 18.13 15.70 16.78
277.6858 -6.7223 16.6 -1 USNO-B1 99.99 14.58 99.99
277.6912 -6.7200 15.5 -1 USNO-B1 20.37 16.72 18.34
277.6855 -6.7213 13.8 -1 USNO-B1 18.83 15.52 16.99
277.6901 -6.7181 9.7 -1 USNO-B1 19.46 16.83 18.00
277.6870 -6.7185 2.5 -1 USNO-B1 17.91 15.30 16.46 *
277.6893 -6.7175 7.1 -1 USNO-B1 99.99 17.28 99.99
277.6868 -6.7180 2.0 -1 USNO-B1 18.42 14.79 16.40 *
277.6857 -6.7177 5.9 -1 USNO-B1 18.97 13.63 16.00
277.6854 -6.7169 8.2 -1 USNO-B1 19.04 16.70 17.74
277.6829 -6.7166 16.8 -1 USNO-B1 19.32 14.70 16.75
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 53 in the list of sources is a candidate afterglow for 1005428_g80 with genie
ra=277.67382 (18:30:41.72) dec=-6.75301 (-06:45:10.8) +/- 0.6" mag=16.12+/-0.14
dist=6.4 REFID=40 major=1.1 minor=1.1 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 106.4 arc sec from the BAT position.
This source is near the edge of image (0.877)
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
277.6769 -6.7520 11.6 -1 USNO-B1 19.09 16.06 17.41
277.6770 -6.7571 18.6 -1 USNO-B1 19.23 16.98 17.98
277.6734 -6.7536 2.6 -1 USNO-B1 15.05 13.09 13.96 *
277.6715 -6.7516 9.7 -1 USNO-B1 19.07 16.75 17.78
277.6710 -6.7502 14.4 -1 USNO-B1 17.08 14.48 15.64
277.6734 -6.7575 16.1 -1 USNO-B1 16.32 14.69 15.41
277.6694 -6.7519 16.2 -1 USNO-B1 99.99 17.14 99.99
277.6696 -6.7529 15.0 -1 USNO-B1 18.20 15.30 16.59
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 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
277.6734 -6.7536 4.3 -1 USNO-B1 15.05 13.09 13.96
277.6734 -6.7575 9.7 -1 USNO-B1 16.32 14.69 15.41
The closest star is 4.35" away.
List UVOT sources within 10" of the XRT position:
Unmatched source ra=277.67382 (18:30:41.72) dec=-6.75301 (-06:45:10.8) +/- 0.6" mag=16.12+/-0.14 dist=6.4 REFID=40 flag=0
Matched source ra=277.67337 (18:30:41.61) dec=-6.75746 (-06:45:26.8) +/- 0.6" mag=16.83+/-0.14 dist=9.7 REFID=42 flag=0
There are 1.2404417E+05 counts in the bkg source region of 5001.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 24.804 counts/pixel (5-sig UL in 4" is 19.61 mag) for 1005428_g80
There are 8743.5273 counts in the xrt source region of 201.00000 pixels.
Rate in xrt region with 8 arcsec radius is 43.500 counts/pixel for 1005428_g80
XRT source is too far (89.4701701667609") from center -- do not compute local background.
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 20.16, XRT distances < 5.25",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 1005428_626780787_201111d10h00m59s439303usUT_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(277.6958,-6.7431,45")
fk5;-circle(277.699995164847,-6.74067041473908,6")
fk5;-circle(277.6972868049,-6.73876098514786,6")
fk5;-circle(277.707664764251,-6.73949229855021,6")
fk5;-circle(277.703457000832,-6.75128188844691,6")
fk5;-circle(277.691603800018,-6.73546368156627,6")
fk5;-circle(277.693200534846,-6.74874637354302,6")
fk5;-circle(277.703056485301,-6.75261949419559,6")
fk5;-circle(277.695365141966,-6.75145175196716,6")
fk5;-circle(277.694063452716,-6.73054067328461,6")
fk5;-circle(277.69242472181,-6.75184493719688,6")
fk5;-circle(277.687912092746,-6.74568317481206,6")
fk5;-circle(277.690848188659,-6.75099374957359,6")
fk5;-circle(277.688690389115,-6.73282673518742,6")
fk5;-circle(277.690431421562,-6.73007243533115,6")
fk5;-circle(277.686789750247,-6.73473556287508,6")
fk5;-circle(277.689541195528,-6.75185044495041,6")
fk5;-circle(277.685708789311,-6.75162026820921,6")
Region file: 1005428_626780787_201111d10h00m59s439303usUT_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(277.67371,-6.75478,8")
image paragraph message for exposure 1 of trigger 1005428
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: high density of stars
SRCLIST PROBLEM: high density of stars, srclist filled telemetry buffer
See notes for more details.
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
2 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 GRB201111 (Swift/BAT trigger 1005428) at 09:45:06 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 55 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. Because of the density of catalogued stars, further
analysis is required to report an upper limit for any afterglow in the
sub-image. The 8'x8' region for the list of sources generated on-board covers
100% of the XRT error circle. Because of the density of catalogued stars,
further analysis is required to report an upper limit for any afterglow in the
region. No correction has been made for the large, but uncertain, extinction
expected.
------- notes for trigger 1005428 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 201111d10h01m05s969391usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1005428
-expid=626780787 -meonly -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/1005428/
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. XRT position found for srclist. XRT position found for Genie
image. BAT position found.
UVOT exposure began at MET 626780787.1669 or about 2020:316:09:46:22 UT
Found 3072 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 52% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 9 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 52 source(s) in Genie image catalog. 2 source(s) are within 10.0" of the
xrt position. Found 6 Genie image source(s) without IDs. There are 0 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.16 mag. Found 579 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 54% of the Genie image region.
Genie image analysis:
Found 124044.2 counts in the large background region of 5001.0 pixels or a rate
of 24.804 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 19.43 mag. for a
4-arcsec aperture.
Found 8743.5 counts in the XRT position region of 201.0 pixels or a rate of
43.500 counts/pixel in a radius of 8.0 arcsec. The net count rate (using large
background region) at the XRT position is 25.053 +/- 0.630 (1-sigma) cps or
16.10 mag and a range from 16.08 to 16.13 mag. The 3-sigma UL at the XRT
position is 26.944 cps or 16.02 mag. The number of srclist sources filled the
available telemetry. The weakest source detected was 18.88 mag.
Found 1 srclist source(s) within 10.0" of the XRT position.
The brightest such source has ra= 277.6738 dec= -6.7531 mag=16.93 sep=6.20".
The closest srclist source has ra= 277.6738 dec= -6.7531 mag=16.93 sep=6.20".
Found 2 Genie source(s) within 10.0" of the XRT position. The brightest such
source has ra= 277.6738 dec= -6.7530 mag=16.12 sep=6.37". The closest Genie
source has ra= 277.6738 dec= -6.7530 mag=16.12 sep=6.37".
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 55 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 18:30:41.72 = 277.67382
DEC(J2000) = -06:45:10.8 = -6.75301
with a 90%-confidence error radius of about 0.61 arc sec. This position is 6.37
arc sec. from the center of the XRT error circle. The estimated magnitude is
16.12 with a 1-sigma error of about 0.14. 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?
626780787 54 WHITE srclist found no candidates.
626780787 54 WHITE image found no candidates.
List afterglow candidates for other finding charts.
626780999 266 U srclist found no candidates.
626780999 266 U image found no candidates.
------- Tokens for Quick GCN -------