srclist overlap message for exposure 1 of trigger 1032350
uvot_overlap.pl vrs. 2010-12-20b fem started at 210213d00h28m43s896111usUT
The observation of trigger 1032350 started 2021-02-13T00:11:44.3
Examining file ./1032350_g90_uvot_sky_srclist.fits
The exposure ID is 634867904
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (277.6669,-6.7452) with a roll angle of 101.8
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 (277.6600,-6.7480) with a radius of 3.000 arc min
This is 0.445 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 (277.6734,-6.7542) with a radius of 0.038 arc min
This is 0.663 arc min from the center of the uvot region
The area of the XRT error circle is 0.005 sq. arc min
The UVOT/XRT overlap is 0.005 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1032350
find_uvot_ag.pl vrs. 2020-10-30 fem started at 210213d00h28m46s555851usUT
Observation start time is 2021-02-13T00:11:44.3
Examining file ./1032350_g90_uvot_catalog_srclist.fits
The exposure ID is 634867904
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 190 detected source(s) for 1032350_g90
*** 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 1032350_g90 has mag 18.83
Aspect correction adds 0.00055 degrees (0.131 sec of time = 1.96 arc sec) to RA
Aspect correction adds -0.00033 degrees (-1.18 arcsec) to Dec
Total aspect correction is 2.28 arcsec
Star catalogs centered at 277.6617 , -6.7458 with radius 5.95 arc min.
n_usno: 2791 n_gsc: 0
*** WARNING -- bright star catalog has 4 entries brighter than 12 mag
The brightest has mag 11.49886
RA DEC Mag Color
bright star 0: 277.64114 (18:30:33.87) -6.72263 (-06:43:21.5) 12.00 USNO-R
bright star 1: 277.64008 (18:30:33.62) -6.72227 (-06:43:20.2) 11.80 USNO-R
bright star 2: 277.62251 (18:30:29.40) -6.73027 (-06:43:49.0) 11.75 USNO-R
bright star 3: 277.63296 (18:30:31.91) -6.66255 (-06:39:45.2) 11.50 USNO-V
Mean distance difference (CAT_DELTA) for 192 matched entries is 0.882" for 1032350_g90
Mean and std. dev of mag. difference (MAG_DELTA) are 2.384 and 0.576 for 1032350_g90
Found 9 entries without IDs and 5 entries that are acceptable afterglow candidates for 1032350_g90.
Acceptable entries have no ID, XRT distances < 5.75", 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=277.6600 (18:30:38.40) DEC=-6.7480 (-06:44:52.8)
XRT distances are from RA=277.6734 (18:30:41.61) DEC=-6.7542 (-06:45:15.2)
-----------------
Entry 6 in the list of sources is a candidate afterglow for 1032350_g90 with 3x3 stamp
ra=277.67399 (18:30:41.76) dec=-6.75308 (-06:45:11.1) +/- 1.1" mag=17.25+/-0.35
dist=4.6 REFID=36
src: 6 distr. of nearby unmatched sources: 1 0 0 0 0
Found 8 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
277.6694 -6.7519 16.8 -1 USNO-B1 99.99 17.14 99.99
277.6710 -6.7502 15.0 -1 USNO-B1 17.08 14.48 15.64
277.6696 -6.7529 15.7 -1 USNO-B1 18.20 15.30 16.59
277.6715 -6.7516 10.3 -1 USNO-B1 19.07 16.75 17.78
277.6734 -6.7536 2.8 -1 USNO-B1 15.05 13.09 13.96 *
277.6769 -6.7520 11.1 -1 USNO-B1 19.09 16.06 17.41
277.6734 -6.7575 15.9 -1 USNO-B1 16.32 14.69 15.41
277.6770 -6.7571 18.0 -1 USNO-B1 19.23 16.98 17.98
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 26 in the list of sources is a candidate afterglow for 1032350_g90 with 3x3 stamp
ra=277.68860 (18:30:45.26) dec=-6.73264 (-06:43:57.5) +/- 1.1" mag=17.96+/-0.35
dist=94.8 REFID=72
*** The position of this source is inconsistent with the XRT position.
The position is 116.2 arc sec from the BAT position.
src: 26 distr. of nearby unmatched sources: 0 1 0 0 0
Found 14 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
277.6863 -6.7367 16.7 -1 USNO-B1 99.99 18.18 99.99
277.6869 -6.7356 12.1 -1 USNO-B1 99.99 16.16 99.99
277.6869 -6.7352 10.9 -1 USNO-B1 17.04 14.41 15.58
277.6868 -6.7331 6.5 -1 USNO-B1 19.81 99.99 99.99
277.6874 -6.7334 5.2 -1 USNO-B1 99.99 14.09 99.99
277.6883 -6.7341 5.3 -1 USNO-B1 17.84 13.06 15.18
277.6856 -6.7290 16.8 -1 USNO-B1 19.37 14.94 16.91
277.6854 -6.7285 18.9 -1 USNO-B1 18.80 15.23 16.82
277.6884 -6.7335 3.2 -1 USNO-B1 17.35 12.81 14.83 *
277.6889 -6.7331 2.1 -1 USNO-B1 15.70 15.75 15.73 *
277.6899 -6.7332 5.2 -1 USNO-B1 99.99 14.50 99.99
277.6916 -6.7359 16.1 -1 USNO-B1 99.99 17.59 99.99
277.6915 -6.7355 14.8 -1 USNO-B1 18.73 16.61 17.55
277.6905 -6.7300 11.5 -1 USNO-B1 15.07 13.25 14.06
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 49 in the list of sources is a candidate afterglow for 1032350_g90 with 3x3 stamp
ra=277.65618 (18:30:37.48) dec=-6.70766 (-06:42:27.6) +/- 1.1" mag=18.12+/-0.35
dist=178.5 REFID=84
*** The position of this source is inconsistent with the XRT position.
The position is 145.9 arc sec from the BAT position.
src: 49 srclist_match has ID
src: 49 distr. of nearby unmatched sources: 0 1 0 0 0
Found 11 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
277.6570 -6.7113 13.3 -1 USNO-B1 20.29 17.86 18.94
277.6567 -6.7107 11.0 -1 USNO-B1 18.91 18.14 18.48
277.6528 -6.7113 17.9 -1 USNO-B1 99.99 17.83 99.99
277.6575 -6.7080 4.9 -1 USNO-B1 17.46 14.57 15.86
277.6585 -6.7078 8.5 -1 USNO-B1 18.51 16.05 17.14
277.6580 -6.7078 6.4 -1 USNO-B1 16.45 14.07 15.13
277.6565 -6.7074 1.4 -1 USNO-B1 17.07 15.08 15.96 *
277.6510 -6.7083 18.7 -1 USNO-B1 15.73 13.58 14.54
277.6578 -6.7068 6.7 -1 USNO-B1 99.99 15.99 99.99
277.6601 -6.7043 18.6 -1 USNO-B1 16.82 14.63 15.61
277.6535 -6.7049 13.9 -1 USNO-B1 15.88 14.04 14.85
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 74 in the list of sources is a candidate afterglow for 1032350_g90 with 3x3 stamp
ra=277.70285 (18:30:48.68) dec=-6.72550 (-06:43:31.8) +/- 1.1" mag=17.93+/-0.35
dist=147.6 REFID=64
*** The position of this source is inconsistent with the XRT position.
The position is 173.3 arc sec from the BAT position.
src: 74 distr. of nearby unmatched sources: 1 0 0 1 0
Found 14 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 17.7 -1 USNO-B1 16.91 13.97 15.28
277.7010 -6.7268 8.2 -1 USNO-B1 17.75 99.99 99.99
277.7020 -6.7287 11.9 -1 USNO-B1 17.27 14.88 15.94
277.7021 -6.7258 2.9 -1 USNO-B1 15.37 12.65 13.86 *
277.7022 -6.7254 2.5 -1 USNO-B1 16.00 99.99 99.99 *
277.7005 -6.7217 15.9 -1 USNO-B1 19.19 16.99 17.97
277.7049 -6.7303 18.7 -1 USNO-B1 15.32 12.69 13.86 *
277.7048 -6.7293 15.4 -1 USNO-B1 16.30 13.56 14.78
277.7052 -6.7297 17.1 -1 USNO-B1 20.38 12.40 15.94 *
277.7061 -6.7237 13.3 -1 USNO-B1 17.95 14.67 16.12
277.7043 -6.7204 19.2 -1 USNO-B1 18.73 18.09 18.37
277.7077 -6.7265 17.8 -1 USNO-B1 19.46 99.99 99.99
277.7077 -6.7258 17.2 -1 USNO-B1 18.27 14.10 15.95
277.7060 -6.7209 19.9 -1 USNO-B1 19.68 16.92 18.15
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
-----------------
Entry 77 in the list of sources is a candidate afterglow for 1032350_g90 with 3x3 stamp
ra=277.61461 (18:30:27.51) dec=-6.72923 (-06:43:45.2) +/- 1.1" mag=18.05+/-0.35
dist=228.6 REFID=104
*** The position of this source is inconsistent with the XRT position.
The position is 175.8 arc sec from the BAT position.
src: 77 distr. of nearby unmatched sources: 0 0 0 0 0
Found 14 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
277.6153 -6.7341 17.7 -1 USNO-B1 19.13 15.04 16.86
277.6181 -6.7260 17.0 -1 USNO-B1 17.21 14.92 15.94
277.6149 -6.7326 12.3 -1 USNO-B1 18.95 14.78 16.63
277.6143 -6.7327 12.7 -1 USNO-B1 17.98 15.19 16.43
277.6153 -6.7273 7.2 -1 USNO-B1 17.05 14.43 15.59
277.6147 -6.7286 2.3 -1 USNO-B1 16.56 14.43 15.37 *
277.6148 -6.7275 6.2 -1 USNO-B1 18.72 13.21 15.66
277.6151 -6.7268 8.8 -1 USNO-B1 16.67 12.90 14.57 *
277.6156 -6.7251 15.2 -1 USNO-B1 19.21 14.48 16.58
277.6138 -6.7250 15.6 -1 USNO-B1 19.82 16.19 17.80
277.6131 -6.7252 15.4 -1 USNO-B1 17.68 15.85 16.66
277.6128 -6.7260 13.5 -1 USNO-B1 19.02 15.75 17.20
277.6107 -6.7309 15.3 -1 USNO-B1 19.97 18.61 19.21
277.6097 -6.7318 19.8 -1 USNO-B1 20.51 17.44 18.80
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 4" or brighter than 13 mag
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
277.6734 -6.7536 2.2 -1 USNO-B1 15.05 13.09 13.96
The closest star is 2.22" away.
List UVOT sources within 10" of the XRT position:
Unmatched source ra=277.67399 (18:30:41.76) dec=-6.75308 (-06:45:11.1) +/- 1.1" mag=17.25+/-0.35 dist=4.6 REFID=36
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 < 5.75",
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 1032350
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.
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 GRB210213 (Swift/BAT trigger 1032350) at 00:10:13 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 63 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 1032350 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 210213d00h28m52s907066usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1032350
-expid=634867904 -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/1032350/
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 634867904.25992 or about 2021:044:00:11:39 UT
Found 2787 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 54% 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 41 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. 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
20.07 mag. Found 564 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 57% of the Genie image region.
Genie image analysis:
Found 159039.2 counts in the large background region of 5417.0 pixels or a rate
of 29.359 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 19.34 mag. for a
4-arcsec aperture.
Found 9390.2 counts in the XRT position region of 195.0 pixels or a rate of
48.155 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is 24.776 +/- 0.685 (1-sigma) cps or
16.12 mag and a range from 16.09 to 16.15 mag. The 3-sigma UL at the XRT
position is 26.832 cps or 16.03 mag. The number of srclist sources filled the
available telemetry. The weakest source detected was 18.83 mag.
Found 1 srclist source(s) within 10.0" of the XRT position.
The brightest such source has ra= 277.6740 dec= -6.7531 mag=17.25 sep=4.64".
The closest srclist source has ra= 277.6740 dec= -6.7531 mag=17.25 sep=4.64".
Found 1 Genie source(s) within 10.0" of the XRT position. The brightest such
source has ra= 277.6739 dec= -6.7530 mag=16.10 sep=4.68". The closest Genie
source has ra= 277.6739 dec= -6.7530 mag=16.10 sep=4.68".
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 63 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 18:30:41.73 = 277.67387
DEC(J2000) = -06:45:10.9 = -6.75302
with a 90%-confidence error radius of about 0.61 arc sec. This position is 4.68
arc sec. from the center of the XRT error circle. The estimated magnitude is
16.10 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?
634867904 63 WHITE srclist found no candidates.
634867904 63 WHITE image found no candidates.
List afterglow candidates for other finding charts.
634868116 275 U srclist found no candidates.
634868116 275 ? image data are not available.
------- Tokens for Quick GCN -------