image overlap message for exposure 3 of trigger 1205744
uvot_overlap.pl vrs. 2010-12-20b fem started at 240102d10h23m48s841547usUT
The observation of trigger 1205744 started 2024-01-01T20:40:45.9
Examining file ./1205744_g905_uvot_sky_image.fits
The exposure ID is 725834445
The exposure time is 149.857 (seconds)
The filter is WHITE.
*** Warning -- no aspect solution was applied to the image.
consequently the calculated overlaps are questionable.
*** Warning -- found 24422 null pixels in the image.
The uvot region is centered at (352.0898,51.6350) with a roll angle of 240.7
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 (352.0520,51.6450) with a radius of 3.000 arc min
This is 1.531 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 0.39 sq. arc min or 0.01 of the BAT error circle
The XRT error circle is centered at (352.0957,51.6362) with a radius of 0.037 arc min
This is 0.233 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 3 of trigger 1205744
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240102d10h24m14s597415usUT
Observation start time is 2024-01-01T20:40:45.9
Examining file ./1205744_g905_uvot_sources_image.fits
The exposure ID is 725834445
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 2 detected source(s) for 1205744_g905
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 352.0994 , 51.6138 with radius 2.00 arc min.
n_usno: 127 n_gsc: 134
Bright star catalog has no entries brighter than 12 mag
Found 2 entries without IDs and 2 entries that are acceptable afterglow candidates for 1205744_g905.
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=352.0520 (23:28:12.48) DEC=51.6450 (+51:38:42.0)
XRT distances are from RA=352.0957 (23:28:22.97) DEC=51.6362 (+51:38:10.2)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1205744_g905 with genie
ra=352.10462 (23:28:25.11) dec=51.61406 (+51:36:50.6) +/- 1.1" mag=15.17+/-0.35
dist=82.1 REFID=1 major=1.3 minor=1.0 flag=16 (aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 162.0 arc sec from the BAT position.
This source is near the edge of image (0.914)
Found 8 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
352.0986 51.6127 14.4 -1 USNO-B1 19.31 19.14 19.22 *
352.1031 51.6128 5.7 -1 USNO-B1 13.70 12.80 13.20 *
352.1023 51.6163 9.6 -1 USNO-B1 17.29 16.59 16.90 *
352.0983 51.6125 15.3 -1 GSC2.3 19.27 99.99 99.99 *
352.1031 51.6127 6.0 -1 GSC2.3 12.88 13.77 13.24 *
352.0976 51.6166 18.2 -1 GSC2.3 19.92 21.36 99.99 *
352.1024 51.6162 9.4 -1 GSC2.3 16.82 17.71 17.32 *
352.1086 51.6154 10.2 -1 GSC2.3 20.10 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
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1205744_g905 with genie
ra=352.09425 (23:28:22.62) dec=51.61363 (+51:36:49.1) +/- 1.1" mag=16.16+/-0.35
dist=81.2 REFID=2 major=1.5 minor=1.3 flag=16 (aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 147.2 arc sec from the BAT position.
This source is near the edge of image (0.929)
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
352.0986 51.6127 10.3 -1 USNO-B1 19.31 19.14 19.22 *
352.0962 51.6168 12.2 -1 USNO-B1 20.52 18.05 19.15 *
352.0928 51.6121 6.2 -1 USNO-B1 15.88 15.07 15.43 *
352.0947 51.6191 19.8 -1 USNO-B1 20.16 19.06 19.55 *
352.0983 51.6125 9.9 -1 GSC2.3 19.27 99.99 99.99 *
352.0976 51.6166 12.9 -1 GSC2.3 19.92 21.36 99.99 *
352.0929 51.6120 6.5 -1 GSC2.3 15.21 16.11 15.38 *
352.0913 51.6178 16.4 -1 GSC2.3 20.44 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 6 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
352.0946 51.6326 13.0 -1 USNO-B1 18.08 16.97 17.46
352.1002 51.6401 17.3 -1 USNO-B1 19.99 19.03 19.46
352.0994 51.6326 15.3 -1 GSC2.3 20.21 99.99 99.99
352.0947 51.6325 13.2 -1 GSC2.3 17.13 18.40 17.87
352.0883 51.6344 17.8 -1 GSC2.3 19.92 99.99 99.99
352.1002 51.6400 17.0 -1 GSC2.3 18.58 20.26 19.10
The closest star is 12.97" 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 < 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: 1205744_725834445_240102d10h24m14s597415usUT_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(352.0898,51.6350,45")
Region file: 1205744_725834445_240102d10h24m14s597415usUT_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(352.09571,51.63617,8")
Region file: 1205744_725834445_240102d10h24m14s597415usUT_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(352.09571,51.63617,25")
fk5;-circle(352.09571,51.63617,15")
image paragraph message for exposure 3 of trigger 1205744
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 GRB240101 (Swift/BAT trigger 1205744) at 20:25:39 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 873 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 0.287.
------- notes for trigger 1205744 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240102d10h24m20s206401usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1205744
-expid=725834445 -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/1205744/
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 725834445.9354 or about 2024:001:20:40:40 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 129 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 22% of the
Genie image region. The Genie image is INCOMPLETE with 24422 null pixels.
The closest Genie source has ra= 352.0942 dec= 51.6136 mag=16.16 sep=81.20".
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?
725834445 872 ? srclist data are not available.
725834445 872 WHITE image found no candidates.
List afterglow candidates for other finding charts.
725833706 133 WHITE srclist found no candidates.
725833706 133 WHITE image found no candidates.
725833865 292 ? srclist data are not available.
725833865 292 U image found no candidates.
------- Tokens for Quick GCN -------