image overlap message for exposure 1 of trigger 1216911
uvot_overlap.pl vrs. 2010-12-20b fem started at 240223d00h22m53s149126usUT
The observation of trigger 1216911 started 2024-02-23T00:13:20.5
Examining file 1216911_g160_uvot_sky_image.fits
The exposure ID is 730340000
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 23230 null pixels in the image.
The uvot region is centered at (299.9403,35.3316) with a roll angle of 136.4
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 (299.9810,35.3530) with a radius of 3.000 arc min
This is 2.368 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 2.55 sq. arc min or 0.09 of the BAT error circle
The XRT error circle is centered at (299.9364,35.3346) with a radius of 0.078 arc min
This is 0.263 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 0.00 sq. arc min or 0.00 of the XRT error circle
image afterglow message for exposure 1 of trigger 1216911
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240223d00h22m54s112814usUT
Observation start time is 2024-02-23T00:13:20.5
Examining file 1216911_g160_uvot_sources_image.fits
The exposure ID is 730340000
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 1 detected source(s) for 1216911_g160
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 299.9640 , 35.3388 with radius 2.00 arc min.
n_usno: 138 n_gsc: 335
*** WARNING -- bright star catalog has 5 entries brighter than 12 mag
The brightest has mag 8.40
RA DEC Mag Color
bright star 0: 299.95403 (19:59:48.97) 35.35012 (+35:21:00.4) 11.95 USNO-R
bright star 1: 299.94760 (19:59:47.42) 35.32791 (+35:19:40.5) 8.40 USNO-R
bright star 2: 299.94044 (19:59:45.71) 35.33696 (+35:20:13.1) 10.41 USNO-R
bright star 3: 299.94276 (19:59:46.26) 35.35463 (+35:21:16.7) 10.42 USNO-R
bright star 4: 299.95460 (19:59:49.10) 35.30931 (+35:18:33.5) 9.02 USNO-V
Found 1 entries without IDs and 1 entries that are acceptable afterglow candidates for 1216911_g160.
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.
0 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=299.9810 (19:59:55.44) DEC=35.3530 (+35:21:10.8)
XRT distances are from RA=299.9364 (19:59:44.74) DEC=35.3346 (+35:20:04.6)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1216911_g160 with genie
ra=299.96398 (19:59:51.36) dec=35.33881 (+35:20:19.7) +/- 1.1" mag=13.69+/-0.35
dist=82.4 REFID=1 major=31.3 minor=4.2 flag=18 (blended+aperture_incomplete)
*** The position of this source is inconsistent with the XRT position.
The position is 71.5 arc sec from the BAT position.
This source is near the edge of image (0.880)
Found 10 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
299.9664 35.3400 8.3 -1 USNO-B1 16.75 99.99 99.99 *
299.9656 35.3367 9.0 -1 USNO-B1 16.54 99.99 99.99 *
299.9605 35.3364 13.5 -1 USNO-B1 17.63 99.99 99.99 *
299.9582 35.3405 17.9 -1 USNO-B1 17.32 99.99 99.99 *
299.9653 35.3409 8.3 -1 GSC2.3 99.99 99.99 99.99 *
299.9665 35.3399 8.5 -1 GSC2.3 99.99 99.99 99.99 *
299.9655 35.3366 9.3 -1 GSC2.3 99.99 99.99 99.99 *
299.9675 35.3384 10.5 -1 GSC2.3 20.31 99.99 99.99 *
299.9605 35.3364 13.5 -1 GSC2.3 16.13 17.85 99.99 *
299.9583 35.3405 17.8 -1 GSC2.3 16.09 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 13 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
299.9427 35.3361 19.3 -1 USNO-B1 16.80 99.99 99.99
299.9404 35.3370 14.6 -1 USNO-B1 99.99 10.41 99.99
299.9342 35.3367 10.0 -1 USNO-B1 18.93 8.01 12.86
299.9322 35.3365 14.0 -1 USNO-B1 15.27 99.99 99.99
299.9328 35.3315 15.5 -1 USNO-B1 18.35 99.99 99.99
299.9428 35.3360 19.5 -1 GSC2.3 99.99 99.99 99.99
299.9354 35.3389 15.6 -1 GSC2.3 99.99 99.99 99.99
299.9350 35.3388 15.7 -1 GSC2.3 99.99 99.99 99.99
299.9352 35.3361 6.6 -1 GSC2.3 99.99 99.99 99.99
299.9323 35.3363 13.7 -1 GSC2.3 99.99 99.99 99.99
299.9318 35.3379 18.1 -1 GSC2.3 99.99 99.99 99.99
299.9324 35.3312 16.9 -1 GSC2.3 99.99 99.99 99.99
299.9298 35.3356 19.8 -1 GSC2.3 20.09 99.99 99.99
The closest star is 6.56" 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 < 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: 1216911_730340000_240223d00h22m54s112814usUT_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(299.9403,35.3316,45")
Region file: 1216911_730340000_240223d00h22m54s112814usUT_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(299.9364,+35.3346,8")
Region file: 1216911_730340000_240223d00h22m54s112814usUT_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(299.9364,+35.3346,25")
fk5;-circle(299.9364,+35.3346,15")
image paragraph message for exposure 1 of trigger 1216911
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 GRB240223 (Swift/BAT trigger 1216911) at 00:10:39 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 128 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
large, but uncertain, extinction expected.
------- notes for trigger 1216911 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240223d00h22m55s522402usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1216911
-expid=730340000 -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/1216911/
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 730340000.48358 or about 2024:054:00:13:15 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 1 source(s) in Genie image catalog. Found 1 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 335 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 58% of the
Genie image region. The Genie image is INCOMPLETE with 23230 null pixels.
The closest Genie source has ra= 299.9640 dec= 35.3388 mag=13.69 sep=82.40".
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?
730340000 128 ? srclist data are not available.
730340000 128 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------