image overlap message for exposure 2 of trigger 1114937
uvot_overlap.pl vrs. 2010-12-20b fem started at 220707d00h01m43s159332usUT
The observation of trigger 1114937 started 2022-07-06T16:15:03.7
Examining file ./1114937_g348_uvot_sky_image.fits
The exposure ID is 678816903
The exposure time is 249.935 (seconds)
The filter is U.
*** Warning -- found 22740 null pixels in the image.
The uvot region is centered at (0.5902,-16.3890) with a roll angle of 71.3
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 (0.5870,-16.3910) with a radius of 3.000 arc min
This is 0.222 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 at most 3.22 sq. arc min or 0.11 of the BAT error circle
The XRT error circle is centered at (0.6043,-16.4112) with a radius of 0.037 arc min
This is 1.561 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 0.00 sq. arc min or 0.00 of the XRT error circle
image afterglow message for exposure 2 of trigger 1114937
find_uvot_ag.pl vrs. 2020-10-30 fem started at 220707d00h01m55s961006usUT
Observation start time is 2022-07-06T16:15:03.7
Examining file ./1114937_g348_uvot_sources_image.fits
The exposure ID is 678816903
The exposure is 249.935 sec.
The bin size is 2 pixels
The filter is U
There are 0 detected source(s) for 1114937_g348
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 0.5955 , -16.3854 with radius 2.00 arc min.
n_usno: 20 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 1114937_g348.
Acceptable entries have no ID, XRT distances < 5.5", 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= 0.5870 (00:02:20.88) DEC=-16.3910 (-16:23:27.6)
XRT distances are from RA= 0.6043 (00:02:25.03) DEC=-16.4112 (-16:24:40.4)
Found 0 entries in star catalog(s) within 20" of the XRT position.
List UVOT sources within 20" of the XRT position:
There are 0.0000000 counts in the bkg source region of 0.0000000 pixels.
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 18.32, XRT distances < 5.5",
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: 1114937_678816903_220707d00h01m55s961006usUT_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(0.5902,-16.3890,45")
image paragraph message for exposure 2 of trigger 1114937
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 GRB220706 (Swift/BAT trigger 1114937) at 16:09:14 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
319 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. Data 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 0.025.
------- notes for trigger 1114937 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 220707d00h01m59s897287usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1114937
-expid=678816903 -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/1114937/
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 678816903.68358 or about 2022:187:16:14:58 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 0 source(s) in Genie image catalog. Found 0 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 18.32 mag. Found 16 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 2% of the
Genie image region. The Genie image is INCOMPLETE with 22740 null pixels.
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?
678816903 319 ? srclist data are not available.
678816903 319 U image found no candidates.
List afterglow candidates for other finding charts.
678816691 107 WHITE srclist found no candidates.
678816691 107 WHITE image found no candidates.
678817459 875 WHITE srclist found no candidates.
678817459 875 WHITE image found no candidates.
------- Tokens for Quick GCN -------