image overlap message for exposure 2 of trigger 1149293
uvot_overlap.pl vrs. 2010-12-20b fem started at 230117d04h03m34s855998usUT
The observation of trigger 1149293 started 2023-01-16T21:10:05.5
Examining file ./1149293_g321_uvot_sky_image.fits
The exposure ID is 695596205
The exposure time is 249.946 (seconds)
The filter is U.
The uvot region is centered at (98.5879,49.8437) with a roll angle of 324.3
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 (98.5940,49.8400) with a radius of 3.000 arc min
This is 0.324 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 (98.6172,49.8724) with a radius of 0.038 arc min
This is 2.063 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 0.000 sq. arc min or 0.00 of the XRT error circle
image afterglow message for exposure 2 of trigger 1149293
find_uvot_ag.pl vrs. 2020-10-30 fem started at 230117d04h03m47s284728usUT
Observation start time is 2023-01-16T21:10:05.5
Examining file ./1149293_g321_uvot_catalog_image.fits
The exposure ID is 695596205
The exposure is 249.946 sec.
The bin size is 2 pixels
The filter is U
There are 11 detected source(s) for 1149293_g321
Aspect correction adds -0.00121 degrees (-0.291 sec of time = -2.82 arc sec) to RA
Aspect correction adds 0.00077 degrees ( 2.79 arcsec) to Dec
Total aspect correction is 3.96 arcsec
Star catalogs centered at 98.5837 , 49.8428 with radius 2.70 arc min.
n_usno: 117 n_gsc: 0
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 9.23888
RA DEC Mag Color
bright star 0: 98.54060 (06:34:09.74) 49.85081 (+49:51:02.9) 9.24 USNO-V
Mean distance difference (CAT_DELTA) for 3 matched entries is 0.134" for 1149293_g321
Mean and std. dev of mag. difference (MAG_DELTA) are 0.771 and 0.544 for 1149293_g321
Found 8 entries without IDs and 7 entries that are acceptable afterglow candidates for 1149293_g321.
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.
1 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=98.5940 (06:34:22.56) DEC=49.8400 (+49:50:24.0)
XRT distances are from RA=98.6172 (06:34:28.13) DEC=49.8724 (+49:52:20.6)
*** WARNING 72 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1149293_g321 with genie
ra=98.58793 (06:34:21.10) dec=49.85438 (+49:51:15.8) +/- 0.8" mag=18.23+/-0.16
dist=93.9 REFID=6 major=5.2 minor=3.9 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 53.6 arc sec from the BAT position.
Found 1 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
98.5852 49.8558 8.2 -1 USNO-B1 19.92 19.26 19.55
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 5.2
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1149293_g321 with genie
ra=98.57978 (06:34:19.15) dec=49.85390 (+49:51:14.0) +/- 0.8" mag=17.68+/-0.15
dist=109.4 REFID=5 major=7.6 minor=6.5 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 59.9 arc sec from the BAT position.
Found 1 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
98.5852 49.8558 14.3 -1 USNO-B1 19.92 19.26 19.55
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 7.6
-----------------
Entry 3 in the list of sources is a candidate afterglow for 1149293_g321 with genie
ra=98.57585 (06:34:18.20) dec=49.85309 (+49:51:11.1) +/- 0.9" mag=19.47+/-0.21
dist=118.5 REFID=9 major=4.3 minor=3.2 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 63.2 arc sec from the BAT position.
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 4.3
-----------------
Entry 4 in the list of sources is a candidate afterglow for 1149293_g321 with genie
ra=98.61311 (06:34:27.15) dec=49.85602 (+49:51:21.7) +/- 1.1" mag=20.28+/-0.32
dist=59.7 REFID=4 major=1.6 minor=0.7 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 72.7 arc sec from the BAT position.
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 1.6
-----------------
Entry 6 in the list of sources is a candidate afterglow for 1149293_g321 with genie
ra=98.56320 (06:34:15.17) dec=49.85347 (+49:51:12.5) +/- 0.8" mag=17.18+/-0.15
dist=142.7 REFID=8 major=9.1 minor=8.2 flag=19 (neighbor+blended+aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 86.4 arc sec from the BAT position.
Found 3 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
98.5576 49.8507 16.3 -1 USNO-B1 19.56 19.80 19.69
98.5567 49.8506 18.2 -1 USNO-B1 19.84 19.96 19.91
98.5562 49.8508 18.7 -1 USNO-B1 20.12 19.89 19.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 9.1
-----------------
Entry 7 in the list of sources is a candidate afterglow for 1149293_g321 with genie
ra=98.55976 (06:34:14.34) dec=49.85269 (+49:51:09.7) +/- 0.7" mag=16.36+/-0.14
dist=151.0 REFID=7 major=10.0 minor=8.7 flag=18 (blended+aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 91.7 arc sec from the BAT position.
Found 5 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
98.5576 49.8507 8.7 -1 USNO-B1 19.56 19.80 19.69
98.5567 49.8506 10.3 -1 USNO-B1 19.84 19.96 19.91
98.5562 49.8508 10.6 -1 USNO-B1 20.12 19.89 19.99
98.5554 49.8507 12.3 -1 USNO-B1 20.19 19.96 20.06
98.5542 49.8507 14.6 -1 USNO-B1 19.59 99.99 99.99
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 10.0
-----------------
Entry 9 in the list of sources is a candidate afterglow for 1149293_g321 with genie
ra=98.55395 (06:34:12.95) dec=49.84452 (+49:50:40.3) +/- 0.8" mag=18.84+/-0.18
dist=177.9 REFID=11 major=1.9 minor=1.2 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 94.4 arc sec from the BAT position.
This source is near the edge of image (1.003)
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 1.9
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
98.6199 49.8706 9.0 -1 USNO-B1 19.62 18.15 18.80
The closest star is 8.99" away.
List UVOT sources within 10" of the XRT position:
There are 17422.012 counts in the bkg source region of 5972.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 2.917 counts/pixel (5-sig UL in 4" is 19.88 mag) for 1149293_g321
Do not compute counts in XRT region because position is too far from center.
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 20.44, XRT distances < 5.75",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 1149293_695596205_230117d04h03m47s284728usUT_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(98.5879,49.8437,45")
fk5;-circle(98.5879263425574,49.8543754669114,6")
fk5;-circle(98.579784927042,49.8538970336956,6")
fk5;-circle(98.5692653868327,49.8458692304373,6")
fk5;-circle(98.5758531933041,49.8530850103124,6")
image paragraph message for exposure 2 of trigger 1149293
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no overlap
SRCLIST PROBLEM: srclist filled telemetry buffer
See notes for more details.
------ Start for Possible Stand-alone Circular ----
In response to GRB230116 (Swift/BAT trigger 1149293) at 21:04:43 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
291 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 none of the
XRT error circle. 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 expected extinction
corresponding to E(B-V) of 0.112.
------- notes for trigger 1149293 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 230117d04h03m51s606353usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1149293
-expid=695596205 -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/1149293/
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 695596205.46564 or about 2023:016:21:10:00 UT
Found 1073 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 9% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 77 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 18.12 mag.
Found 11 source(s) in Genie image catalog. Found 8 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 20.44 mag. Found 113 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
10% of the Genie image region.
Genie image analysis:
Found 17422.0 counts in the large background region of 5972.0 pixels or a rate
of 2.917 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 19.71 mag. for a
4-arcsec aperture. The number of srclist sources filled the available
telemetry. The weakest source detected was 18.65 mag. The closest srclist
source has ra= 98.6167 dec= 49.8615 mag=16.40 sep=39.25". The closest Genie
source has ra= 98.6168 dec= 49.8615 mag=15.69 sep=39.35".
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?
695596205 291 U srclist found no candidates.
695596205 291 U image found no candidates.
List afterglow candidates for other finding charts.
695596047 133 WHITE srclist found no candidates.
695596047 133 WHITE image found no candidates.
695596785 871 WHITE srclist found no candidates.
695596785 871 WHITE image found no candidates.
------- Tokens for Quick GCN -------