image overlap message for exposure 3 of trigger 994725
uvot_overlap.pl vrs. 2010-12-20b fem started at 200905d10h03m55s088752usUT
The observation of trigger 994725 started 2020-09-05T09:58:49.9
Examining file 994725_g882_uvot_sky_image.fits
The exposure ID is 620992729
The exposure time is 149.868 (seconds)
The filter is WHITE.
The uvot region is centered at (244.9682,-15.8735) with a roll angle of 279.0
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 (244.9680,-15.8610) with a radius of 3.000 arc min
This is 0.753 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 (244.9727,-15.8732) with a radius of 0.078 arc min
This is 0.259 arc min from the center of the uvot region
The area of the XRT error circle is 0.019 sq. arc min
The UVOT/XRT overlap is 0.019 sq. arc min or 1.00 of the XRT error circle
image afterglow message for exposure 3 of trigger 994725
find_uvot_ag.pl vrs. 2017-02-17 fem started at 200905d10h03m57s108300usUT
Observation start time is 2020-09-05T09:58:49.9
Examining file 994725_g882_uvot_sources_image.fits
The exposure ID is 620992729
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 10 detected source(s) for 994725_g882
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 244.9737 , -15.8721 with radius 2.61 arc min.
n_usno: 166 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Found 10 entries without IDs and 10 entries that are acceptable afterglow candidates for 994725_g882.
Acceptable entries have no ID, XRT distances < 11.75", 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=244.9680 (16:19:52.32) DEC=-15.8610 (-15:51:39.6)
XRT distances are from RA=244.9727 (16:19:53.45) DEC=-15.8732 (-15:52:23.5)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 994725_g882 with genie
ra=244.96601 (16:19:51.84) dec=-15.89138 (-15:53:29.0) +/- 0.7" mag=16.76+/-0.14
dist=69.4 REFID=1 major=2.3 minor=1.3 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 109.6 arc sec from the BAT position.
Found 1 entries in star catalog(s) within 20.0" of the candidate.
printing all entries
(Entries within 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
244.9646 -15.8934 8.5 -1 USNO-B1 20.32 17.87 18.96 *
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 1 in the list of sources is a candidate afterglow for 994725_g882 with genie
ra=244.96318 (16:19:51.16) dec=-15.89673 (-15:53:48.2) +/- 0.8" mag=18.58+/-0.15
dist=90.9 REFID=2 major=2.2 minor=1.1 flag=3 (neighbor+blended)
*** The position of this source is inconsistent with the XRT position.
The position is 129.7 arc sec from the BAT position.
This source is near the edge of image (0.978)
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
244.9646 -15.8934 13.2 -1 USNO-B1 20.32 17.87 18.96 *
244.9617 -15.8991 10.0 -1 USNO-B1 20.27 99.99 99.99 *
244.9631 -15.9013 16.3 -1 USNO-B1 18.76 17.39 18.00 *
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 2 in the list of sources is a candidate afterglow for 994725_g882 with genie
ra=244.97887 (16:19:54.93) dec=-15.86137 (-15:51:40.9) +/- 1.1" mag=20.60+/-0.30
dist=47.6 REFID=3 major=1.3 minor=0.6 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 37.7 arc sec from the BAT position.
Found 2 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
244.9767 -15.8617 7.7 -1 USNO-B1 20.99 19.64 20.24 *
244.9826 -15.8610 13.1 -1 USNO-B1 19.55 18.09 18.74 *
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 3 in the list of sources is a candidate afterglow for 994725_g882 with genie
ra=244.95986 (16:19:50.37) dec=-15.86229 (-15:51:44.3) +/- 0.8" mag=18.37+/-0.15
dist=59.3 REFID=4 major=2.9 minor=1.5 flag=2 (blended)
*** The position of this source is inconsistent with the XRT position.
The position is 28.6 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 2.9
-----------------
Entry 4 in the list of sources is a candidate afterglow for 994725_g882 with genie
ra=244.96595 (16:19:51.83) dec=-15.87348 (-15:52:24.5) +/- 0.8" mag=19.21+/-0.17
dist=23.4 REFID=5 major=1.6 minor=1.1 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 45.5 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
244.9633 -15.8721 10.3 -1 USNO-B1 20.06 19.22 19.59 *
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 994725_g882 with genie
ra=244.98781 (16:19:57.07) dec=-15.88005 (-15:52:48.2) +/- 0.8" mag=18.43+/-0.15
dist=57.8 REFID=6 major=2.0 minor=1.3 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 97.0 arc sec from the BAT position.
Found 2 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
244.9866 -15.8782 7.8 -1 USNO-B1 20.43 19.32 19.82 *
244.9885 -15.8772 10.7 -1 USNO-B1 20.77 19.10 19.84 *
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 994725_g882 with genie
ra=244.97486 (16:19:53.97) dec=-15.88087 (-15:52:51.1) +/- 0.9" mag=19.84+/-0.20
dist=28.6 REFID=7 major=1.6 minor=0.7 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 75.4 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 7 in the list of sources is a candidate afterglow for 994725_g882 with genie
ra=244.97074 (16:19:52.98) dec=-15.88964 (-15:53:22.7) +/- 0.8" mag=17.66+/-0.14
dist=59.6 REFID=8 major=2.6 minor=1.2 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 103.5 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 2.6
-----------------
Entry 8 in the list of sources is a candidate afterglow for 994725_g882 with genie
ra=244.95965 (16:19:50.32) dec=-15.88985 (-15:53:23.5) +/- 0.8" mag=18.88+/-0.16
dist=75.1 REFID=9 major=1.7 minor=1.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 107.8 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
244.9608 -15.8861 14.3 -1 USNO-B1 15.80 14.47 15.06
*** If XRT position is correct, then this is NOT the afterglow
*** unacceptable major profile of 1.7
-----------------
Entry 9 in the list of sources is a candidate afterglow for 994725_g882 with genie
ra=244.96279 (16:19:51.07) dec=-15.84751 (-15:50:51.0) +/- 0.8" mag=19.14+/-0.16
dist=98.6 REFID=10 major=1.7 minor=0.6 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 51.8 arc sec from the BAT position.
This source is near the edge of image (0.901)
Found 2 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
244.9621 -15.8514 14.2 -1 USNO-B1 14.68 13.84 14.21 *
244.9676 -15.8478 16.8 -1 USNO-B1 19.19 17.16 18.06 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 20.25" or brighter than 12 mag
Found 0 entries in star catalog(s) within 20" of the XRT position.
List UVOT sources within 20" of the XRT position:
There are 1.1638358E+05 counts in the bkg source region of 6072.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 19.167 counts/pixel (5-sig UL in 4" is 19.75 mag) for 994725_g882
There are 3798.3433 counts in the xrt source region of 198.00000 pixels.
Rate in xrt region with 8 arcsec radius is 19.184 counts/pixel for 994725_g882
There are 22555.420 counts in the xrt_bkg source region of 1164.0000 pixels.
Rate in xrt_bkg region from 15 to 25 arcsec is 19.378 counts/pixel (5-sig UL in 4" is 19.74 mag) for 994725_g882
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 20.30, XRT distances < 11.75",
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: 994725_620992729_200905d10h03m57s108300usUT_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(244.9682,-15.8735,45")
fk5;-circle(244.959859508494,-15.8622921769798,6")
fk5;-circle(244.965951280045,-15.8734763574826,6")
fk5;-circle(244.974857160215,-15.8808733222509,6")
Region file: 994725_620992729_200905d10h03m57s108300usUT_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(244.9727,-15.8732,8")
Region file: 994725_620992729_200905d10h03m57s108300usUT_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(244.9727,-15.8732,25")
fk5;-circle(244.9727,-15.8732,15")
fk5;-circle(244.965951280045,-15.8734763574826,6")
fk5;-circle(244.974857160215,-15.8808733222509,6")
image paragraph message for exposure 3 of trigger 994725
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 994725) at 09:44:06 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 857 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 0.30.
------- notes for trigger 994725 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 200905d10h04m00s017871usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=994725
-expid=620992729 -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/994725/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 620992729.94472 or about 2020:249:09:58:44 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 20.30 mag. Found 162 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
16% of the Genie image region. The closest Genie source has ra= 244.9659 dec=
-15.8735 mag=19.21 sep=23.39".
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?
620992729 857 WHITE srclist data are not available.
620992729 857 WHITE image found no candidates.
List afterglow candidates for other finding charts.
620992017 145 ? srclist data are not available.
620992017 145 WHITE 244.97223 -15.87492 16.98/20.0 6.4 image No
620992175 303 ? srclist data are not available.
620992175 303 U image found no candidates.
------- Tokens for Quick GCN -------