image overlap message for exposure 1 of trigger 994723
uvot_overlap.pl vrs. 2010-12-20b fem started at 200905d09h47m32s996603usUT
The observation of trigger 994723 started 2020-09-05T09:35:56.3
Examining file 994723_g373_uvot_sky_image.fits
The exposure ID is 620991356
The exposure time is 149.857 (seconds)
The filter is WHITE.
The uvot region is centered at (83.6651,22.2204) with a roll angle of 87.3
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 (83.6610,22.2190) with a radius of 3.000 arc min
This is 0.245 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
Could not find the location of an XRT error circle
image afterglow message for exposure 1 of trigger 994723
find_uvot_ag.pl vrs. 2017-02-17 fem started at 200905d09h47m34s920997usUT
Observation start time is 2020-09-05T09:35:56.3
Examining file 994723_g373_uvot_sources_image.fits
The exposure ID is 620991356
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 10 detected source(s) for 994723_g373
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 83.6608 , 22.2257 with radius 2.52 arc min.
n_usno: 170 n_gsc: 0
*** WARNING -- bright star catalog has 2 entries brighter than 12 mag
The brightest has mag 11.20876
RA DEC Mag Color
bright star 0: 83.66060 (05:34:38.54) 22.24311 (+22:14:35.2) 11.46 USNO-V
bright star 1: 83.62871 (05:34:30.89) 22.23935 (+22:14:21.7) 11.21 USNO-V
*** WARNING -- no XRT distances are available.
Found 10 entries without IDs and 8 entries that are acceptable afterglow candidates for 994723_g373.
Acceptable entries have no ID, BAT distance < 210" or XRT distance < 20", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
2 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=83.6610 (05:34:38.64) DEC=22.2190 (+22:13:08.4)
XRT distances are as reported in catalog file.
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 1 in the list of sources is a candidate afterglow for 994723_g373 with genie
ra=83.64953 (05:34:35.89) dec=22.20455 (+22:12:16.4) +/- 0.7" mag=15.59+/-0.14
dist=64.5 REFID=2 major=1.8 minor=0.8 flag=0
This source is near the edge of image (0.932)
Found 1 entries in star catalog(s) within 20.0" of the candidate.
printing all entries
(Entries within 12 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
83.6496 22.2062 6.0 -1 USNO-B1 19.42 16.94 18.04 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
-----------------
Entry 3 in the list of sources is a candidate afterglow for 994723_g373 with genie
ra=83.68241 (05:34:43.78) dec=22.23358 (+22:14:00.9) +/- 0.7" mag=16.14+/-0.14
dist=88.6 REFID=4 major=4.4 minor=3.3 flag=2 (blended)
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
83.6806 22.2297 15.4 -1 USNO-B1 16.30 14.79 15.46
83.6824 22.2324 4.4 -1 USNO-B1 18.18 16.65 17.33 *
83.6818 22.2345 3.9 -1 USNO-B1 19.86 18.56 19.14 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 4 in the list of sources is a candidate afterglow for 994723_g373 with genie
ra=83.67877 (05:34:42.90) dec=22.23231 (+22:13:56.3) +/- 0.7" mag=17.16+/-0.14
dist=76.2 REFID=5 major=5.8 minor=5.7 flag=3 (neighbor+blended)
Found 4 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
83.6757 22.2361 17.0 -1 USNO-B1 19.43 16.95 18.05
83.6806 22.2297 11.3 -1 USNO-B1 16.30 14.79 15.46 *
83.6824 22.2324 12.1 -1 USNO-B1 18.18 16.65 17.33 *
83.6818 22.2345 12.9 -1 USNO-B1 19.86 18.56 19.14 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 5 in the list of sources is a candidate afterglow for 994723_g373 with genie
ra=83.65255 (05:34:36.61) dec=22.22952 (+22:13:46.3) +/- 0.7" mag=14.84+/-0.14
dist=47.2 REFID=6 major=3.1 minor=1.1 flag=2 (blended)
Found 4 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
83.6561 22.2310 12.9 -1 USNO-B1 16.90 15.48 16.11 *
83.6530 22.2303 3.1 -1 USNO-B1 19.28 17.94 18.53 *
83.6546 22.2345 19.2 -1 USNO-B1 17.81 17.61 17.70
83.6518 22.2336 14.8 -1 USNO-B1 17.49 16.26 16.81
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 6 in the list of sources is a candidate afterglow for 994723_g373 with genie
ra=83.65726 (05:34:37.74) dec=22.22400 (+22:13:26.4) +/- 0.8" mag=17.70+/-0.15
dist=21.9 REFID=7 major=1.6 minor=0.8 flag=3 (neighbor+blended)
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
83.6608 22.2245 11.8 -1 USNO-B1 19.18 17.74 18.38 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 7 in the list of sources is a candidate afterglow for 994723_g373 with genie
ra=83.68086 (05:34:43.41) dec=22.23600 (+22:14:09.6) +/- 0.8" mag=17.72+/-0.15
dist=90.1 REFID=8 major=3.2 minor=2.7 flag=0
This source is near the edge of image (0.903)
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
83.6757 22.2361 17.1 -1 USNO-B1 19.43 16.95 18.05 *
83.6824 22.2324 14.0 -1 USNO-B1 18.18 16.65 17.33 *
83.6818 22.2345 6.2 -1 USNO-B1 19.86 18.56 19.14 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
-----------------
Entry 8 in the list of sources is a candidate afterglow for 994723_g373 with genie
ra=83.64228 (05:34:34.15) dec=22.22091 (+22:13:15.3) +/- 0.7" mag=15.33+/-0.14
dist=62.8 REFID=9 major=8.3 minor=2.3 flag=16 (aperture_incomplete)
This source is near the edge of image (0.875)
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
83.6441 22.2210 5.9 -1 USNO-B1 16.85 15.52 16.11 *
83.6433 22.2260 18.6 -1 USNO-B1 18.79 17.61 18.13 *
83.6419 22.2223 5.2 -1 USNO-B1 20.28 18.86 19.49 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
-----------------
Entry 9 in the list of sources is a candidate afterglow for 994723_g373 with genie
ra=83.63920 (05:34:33.41) dec=22.21010 (+22:12:36.4) +/- 0.8" mag=18.43+/-0.16
dist=79.4 REFID=10 major=1.7 minor=0.8 flag=0
This source is near the edge of image (0.894)
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
83.6422 22.2142 18.0 -1 USNO-B1 19.09 16.63 17.72 *
83.6422 22.2138 16.8 -1 USNO-B1 99.99 17.70 99.99 *
83.6420 22.2127 13.1 -1 USNO-B1 19.63 19.49 19.55 *
83.6448 22.2090 18.9 -1 USNO-B1 99.99 19.44 99.99 *
83.6403 22.2136 13.0 -1 USNO-B1 20.32 19.13 19.66 *
83.6411 22.2101 6.5 -1 USNO-B1 16.79 15.66 16.16 *
83.6338 22.2120 19.2 -1 USNO-B1 19.45 18.55 18.95 *
83.6356 22.2077 14.8 -1 USNO-B1 19.27 17.50 18.29 *
83.6373 22.2057 17.2 -1 USNO-B1 18.07 16.17 17.01 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
There are 2.3765838E+05 counts in the bkg source region of 6195.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 38.363 counts/pixel (5-sig UL in 4" is 19.37 mag) for 994723_g373
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.36, BAT distances < 210",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Results are questionable because aspect solution FAILED.
Region file: 994723_620991356_200905d09h47m34s920997usUT_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(83.6651,22.2204,45")
fk5;-circle(83.6572645290944,22.2239957394106,6")
image paragraph message for exposure 1 of trigger 994723
THIS MESSAGE IS *NOT* READY FOR DISTRIBUTION.
MORE ANALYSIS IS REQUIRED TO DETERMINE WHETHER THERE IS AN AFTERGLOW CANDIDATE.
IMAGE PROBLEM: no aspect solution
SRCLIST PROBLEM: no srclist afterglow info
See notes for more details.
------ Start for Possible Stand-alone Circular ----
In response to GRB200905 (Swift/BAT trigger 994723) at 09:29:42 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 348 seconds after the BAT trigger. No credible afterglow candidate has
been found in the initial data products. The 2.7'x2.7' sub-image processing
FAILED because of no aspect solution. Results from the list of sources
generated on-board are not available at this time. No correction has been made
for the expected extinction corresponding to E(B-V) of 0.63.
------- notes for trigger 994723 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 200905d09h48m00s792389usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=994723
-expid=620991356 -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/994723/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
No XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 620991356.34642 or about 2020:249:09:35:51 UT
No information found about the number of stars in the star catalog for srclist
region.
THERE IS NO ASPECT SOLUTION for the image data.
Found 10 source(s) in Genie image catalog. Found 10 Genie image source(s)
without IDs. There are 0 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 19.36 mag. Found 166 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
18% of the Genie image region.
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?
620991356 348 WHITE srclist data are not available.
620991356 348 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------