image overlap message for exposure 1 of trigger 1219542
uvot_overlap.pl vrs. 2010-12-20b fem started at 240311d10h52m03s974243usUT
The observation of trigger 1219542 started 2024-03-11T10:40:17.5
Examining file 1219542_g194_uvot_sky_image.fits
The exposure ID is 731846417
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.
The uvot region is centered at (244.9463,-15.7800) with a roll angle of 98.2
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 (244.8530,-15.8050) with a radius of 3.000 arc min
This is 5.591 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 0.00 sq. arc min or 0.00 of the BAT error circle
The XRT error circle is centered at (244.9385,-15.7818) with a radius of 0.078 arc min
This is 0.462 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 1 of trigger 1219542
find_uvot_ag.pl vrs. 2023-04-25a fem started at 240311d10h52m04s977491usUT
Observation start time is 2024-03-11T10:40:17.5
Examining file 1219542_g194_uvot_sources_image.fits
The exposure ID is 731846417
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 11 detected source(s) for 1219542_g194
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 244.9349 , -15.7803 with radius 2.00 arc min.
n_usno: 91 n_gsc: 89
Bright star catalog has no entries brighter than 12 mag
Found 11 entries without IDs and 1 entries that are acceptable afterglow candidates for 1219542_g194.
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=244.8530 (16:19:24.72) DEC=-15.8050 (-15:48:18.0)
XRT distances are from RA=244.9385 (16:19:45.24) DEC=-15.7818 (-15:46:54.5)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 10 in the list of sources is a candidate afterglow for 1219542_g194 with genie
ra=244.93741 (16:19:44.98) dec=-15.78475 (-15:47:05.1) +/- 0.7" mag=16.82+/-0.14
dist=11.3 REFID=11 major=9.1 minor=8.8 flag=2 (blended)
Found 6 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
244.9350 -15.7801 18.5 -1 USNO-B1 18.27 17.38 17.77
244.9378 -15.7827 7.6 -1 USNO-B1 20.79 18.76 19.66 *
244.9399 -15.7818 13.7 -1 USNO-B1 20.56 19.49 19.97
244.9350 -15.7801 18.7 -1 GSC2.3 17.20 18.44 99.99
244.9377 -15.7827 7.6 -1 GSC2.3 18.63 20.93 99.99 *
244.9392 -15.7824 10.4 -1 GSC2.3 19.54 21.11 99.99 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
Found 9 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
244.9350 -15.7801 13.4 -1 USNO-B1 18.27 17.38 17.77
244.9378 -15.7827 4.0 -1 USNO-B1 20.79 18.76 19.66
244.9399 -15.7818 4.9 -1 USNO-B1 20.56 19.49 19.97
244.9415 -15.7772 19.5 -1 USNO-B1 20.69 19.23 19.88
244.9350 -15.7801 13.7 -1 GSC2.3 17.20 18.44 99.99
244.9377 -15.7827 4.1 -1 GSC2.3 18.63 20.93 99.99
244.9392 -15.7824 3.4 -1 GSC2.3 19.54 21.11 99.99
244.9415 -15.7771 19.8 -1 GSC2.3 19.26 20.74 99.99
244.9438 -15.7839 20.0 -1 GSC2.3 20.03 21.77 99.99
The closest star is 3.43" away.
List UVOT sources within 20" of the XRT position:
Unmatched source ra=244.94096 (16:19:45.83) dec=-15.78516 (-15:47:06.6) +/- 0.8" mag=18.06+/-0.14 dist=14.8 REFID=1 flag=3
Unmatched source ra=244.93368 (16:19:44.08) dec=-15.77875 (-15:46:43.5) +/- 0.7" mag=17.95+/-0.14 dist=20.0 REFID=4 flag=3
Unmatched source ra=244.93670 (16:19:44.81) dec=-15.78551 (-15:47:07.8) +/- 0.7" mag=17.45+/-0.14 dist=14.7 REFID=10 flag=3
Unmatched source ra=244.93741 (16:19:44.98) dec=-15.78475 (-15:47:05.1) +/- 0.7" mag=16.82+/-0.14 dist=11.3 REFID=11 flag=2
There are 34005.039 counts in the bkg source region of 5929.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 5.735 counts/pixel (5-sig UL in 4" is 20.40 mag) for 1219542_g194
There are 3695.4856 counts in the xrt source region of 199.00000 pixels.
Rate in xrt region with 8 arcsec radius is 18.570 counts/pixel for 1219542_g194
There are 10125.202 counts in the xrt_bkg source region of 875.00000 pixels.
Rate in xrt_bkg region from 15 to 25 arcsec is 11.572 counts/pixel (5-sig UL in 4" is 20.02 mag) for 1219542_g194
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 20.96, 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: 1219542_731846417_240311d10h52m04s977491usUT_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(244.9463,-15.7800,45")
fk5;-circle(244.940958171222,-15.7851561968503,6")
fk5;-circle(244.933665241416,-15.7750633240682,6")
fk5;-circle(244.933176271181,-15.7793864363678,6")
fk5;-circle(244.933677840408,-15.7787536903135,6")
fk5;-circle(244.932903372338,-15.7847845118522,6")
fk5;-circle(244.936704726562,-15.7855125966853,6")
fk5;-circle(244.937405952354,-15.7847479120438,6")
Region file: 1219542_731846417_240311d10h52m04s977491usUT_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(244.9385,-15.7818,8")
Region file: 1219542_731846417_240311d10h52m04s977491usUT_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(244.9385,-15.7818,25")
fk5;-circle(244.9385,-15.7818,15")
fk5;-circle(244.940958171222,-15.7851561968503,6")
fk5;-circle(244.933665241416,-15.7750633240682,6")
fk5;-circle(244.933176271181,-15.7793864363678,6")
fk5;-circle(244.933677840408,-15.7787536903135,6")
fk5;-circle(244.932181844734,-15.7845228485318,6")
fk5;-circle(244.93072205486,-15.7802792519159,6")
fk5;-circle(244.931978602938,-15.7839338795118,6")
fk5;-circle(244.932903372338,-15.7847845118522,6")
fk5;-circle(244.936704726562,-15.7855125966853,6")
fk5;-circle(244.937405952354,-15.7847479120438,6")
image paragraph message for exposure 1 of trigger 1219542
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.
4 source(s) near the XRT position were rejected as afterglow candidate(s). See
notes for details.
------ Start for Possible Stand-alone Circular ----
In response to GRB240311 (Swift/BAT trigger 1219542) at 10:37:02 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 161 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 0.314.
------- notes for trigger 1219542 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 240311d10h52m06s444550usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1219542
-expid=731846417 -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/1219542/
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.
*** Warning -- BAT and XRT error circles do NOT overlap.
UVOT exposure began at MET 731846417.53786 or about 2024:071:10:40:12 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 11 source(s) in Genie image catalog. 4 source(s) are within 20.0" of the
xrt position. Found 11 Genie image source(s) without IDs. There are 0 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.96 mag. Found 89 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 15% of the Genie image region.
Found 4 Genie source(s) within 20.0" of the XRT position. The brightest such
source has ra= 244.9374 dec= -15.7848 mag=16.82 sep=11.27". The closest Genie
source has ra= 244.9374 dec= -15.7848 mag=16.82 sep=11.27".
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?
731846417 161 WHITE srclist data are not available.
731846417 161 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------