image overlap message for exposure 2 of trigger 1212791
uvot_overlap.pl vrs. 2010-12-20b fem started at 240203d19h51m23s268251usUT
The observation of trigger 1212791 started 2024-02-03T19:37:49.8
Examining file 1212791_g893_uvot_sky_image.fits
The exposure ID is 728681869
The exposure time is 149.868 (seconds)
The filter is WHITE.
*** Warning -- no aspect solution was applied to the image.
consequently the calculated overlaps are questionable.
*** Warning -- found 23970 null pixels in the image.
The uvot region is centered at (300.1725,35.1870) with a roll angle of 160.0
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 (300.1470,35.1760) with a radius of 3.000 arc min
This is 1.413 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 2.27 sq. arc min or 0.08 of the BAT error circle
The XRT error circle is centered at (300.1693,35.1915) with a radius of 0.088 arc min
This is 0.314 arc min from the center of the uvot region
The area of the XRT error circle is 0.025 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 1212791
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240203d19h51m24s041614usUT
Observation start time is 2024-02-03T19:37:49.8
Examining file 1212791_g893_uvot_sources_image.fits
The exposure ID is 728681869
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 2 detected source(s) for 1212791_g893
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 300.1977 , 35.1818 with radius 2.00 arc min.
n_usno: 188 n_gsc: 250
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.18854
RA DEC Mag Color
bright star 0: 300.21322 (20:00:51.17) 35.15803 (+35:09:28.9) 11.19 USNO-V
Found 2 entries without IDs and 2 entries that are acceptable afterglow candidates for 1212791_g893.
Acceptable entries have no ID, XRT distances < 13.25", 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=300.1470 (20:00:35.28) DEC=35.1760 (+35:10:33.6)
XRT distances are from RA=300.1693 (20:00:40.63) DEC=35.1915 (+35:11:29.4)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1212791_g893 with genie
ra=300.19610 (20:00:47.06) dec=35.17185 (+35:10:18.7) +/- 1.1" mag=13.69+/-0.35
dist=105.9 REFID=1 major=16.2 minor=2.6 flag=19 (neighbor+blended+aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 145.3 arc sec from the BAT position.
This source is near the edge of image (0.948)
Found 4 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
300.2013 35.1722 15.2 -1 USNO-B1 99.99 18.50 99.99 *
300.2008 35.1696 16.2 -1 USNO-B1 17.31 15.16 16.11 *
300.2013 35.1721 15.2 -1 GSC2.3 99.99 99.99 99.99 *
300.2007 35.1696 15.8 -1 GSC2.3 15.06 17.55 99.99 *
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 1 in the list of sources is a candidate afterglow for 1212791_g893 with genie
ra=300.19931 (20:00:47.83) dec=35.19184 (+35:11:30.6) +/- 1.1" mag=13.69+/-0.35
dist=88.3 REFID=2 major=18.7 minor=2.9 flag=19 (neighbor+blended+aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 164.1 arc sec from the BAT position.
This source is near the edge of image (0.931)
Found 8 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
300.1995 35.1888 11.1 -1 USNO-B1 19.79 17.73 18.64 *
300.2012 35.1891 11.4 -1 USNO-B1 99.99 17.59 99.99 *
300.2054 35.1929 18.3 -1 USNO-B1 19.95 17.96 18.84 *
300.1995 35.1887 11.2 -1 GSC2.3 19.03 20.92 99.99 *
300.2014 35.1889 12.0 -1 GSC2.3 19.24 20.80 99.99 *
300.1937 35.1914 16.5 -1 GSC2.3 99.99 99.99 99.99 *
300.2054 35.1929 18.3 -1 GSC2.3 18.91 20.79 99.99 *
300.2014 35.1946 11.9 -1 GSC2.3 19.70 99.99 99.99 *
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 17 entries in star catalog(s) within 20" of the XRT position.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
300.1737 35.1877 18.7 -1 USNO-B1 19.67 17.59 18.51
300.1731 35.1918 11.3 -1 USNO-B1 20.01 17.89 18.83
300.1688 35.1880 12.7 -1 USNO-B1 18.84 16.76 17.68
300.1689 35.1911 2.0 -1 USNO-B1 17.74 15.26 16.36
300.1668 35.1885 13.1 -1 USNO-B1 20.03 18.30 19.07
300.1701 35.1960 16.3 -1 USNO-B1 19.77 17.58 18.55
300.1631 35.1923 18.3 -1 USNO-B1 99.99 17.91 99.99
300.1625 35.1917 19.9 -1 USNO-B1 99.99 17.22 99.99
300.1633 35.1937 19.3 -1 USNO-B1 19.48 16.98 18.09
300.1736 35.1878 18.4 -1 GSC2.3 18.75 20.59 99.99
300.1731 35.1918 11.1 -1 GSC2.3 19.09 20.76 99.99
300.1688 35.1880 12.8 -1 GSC2.3 17.71 19.47 99.99
300.1689 35.1910 2.1 -1 GSC2.3 15.36 18.12 99.99
300.1666 35.1885 13.3 -1 GSC2.3 19.75 20.83 99.99
300.1700 35.1961 16.6 -1 GSC2.3 18.37 20.19 99.99
300.1653 35.1913 11.8 -1 GSC2.3 19.82 99.99 99.99
300.1633 35.1937 19.3 -1 GSC2.3 18.39 20.19 99.99
The closest star is 1.99" away.
List UVOT sources within 20" of the XRT position:
There are 0.0000000 counts in the bkg source region of 0.0000000 pixels.
There are 0.0000000 counts in the xrt source region of 0.0000000 pixels.
There are 0.0000000 counts in the xrt_bkg source region of 0.0000000 pixels.
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 19.42, XRT distances < 13.25",
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: 1212791_728681869_240203d19h51m24s041614usUT_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(300.1725,35.1870,45")
Region file: 1212791_728681869_240203d19h51m24s041614usUT_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(300.1693,+35.1915,8")
Region file: 1212791_728681869_240203d19h51m24s041614usUT_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(300.1693,+35.1915,25")
fk5;-circle(300.1693,+35.1915,15")
image paragraph message for exposure 2 of trigger 1212791
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.
WARNING -- because of the LARGE EXTINCTION, results should be used cautiously.
------ Start for Possible Stand-alone Circular ----
In response to GRB240203 (Swift/BAT trigger 1212791) at 19:22:55 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 861 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 large, but uncertain, extinction expected.
------- notes for trigger 1212791 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240203d19h51m28s250384usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1212791
-expid=728681869 -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/1212791/
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 Genie image. BAT position found.
UVOT exposure began at MET 728681869.80284 or about 2024:034:19:37:44 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 2 source(s) in Genie image catalog. Found 2 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 19.42 mag. Found 250 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 43% of the
Genie image region. The Genie image is INCOMPLETE with 23970 null pixels.
The closest Genie source has ra= 300.1993 dec= 35.1918 mag=13.69 sep=88.30".
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?
728681869 861 WHITE srclist data are not available.
728681869 861 WHITE image found no candidates.
List afterglow candidates for other finding charts.
728681217 209 ? srclist data are not available.
728681217 209 WHITE image found no candidates.
------- Tokens for Quick GCN -------