image overlap message for exposure 3 of trigger 1186908
uvot_overlap.pl vrs. 2010-12-20b fem started at 230824d02h48m08s600715usUT
The observation of trigger 1186908 started 2023-08-24T02:39:36.9
Examining file 1186908_g911_uvot_sky_image.fits
The exposure ID is 714537576
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 2941 null pixels in the image.
The uvot region is centered at (83.5373,21.5857) with a roll angle of 85.4
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 (83.5330,21.6090) with a radius of 3.000 arc min
This is 1.420 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 7.07 sq. arc min or 0.25 of the BAT error circle
Could not find the location of an XRT error circle
image afterglow message for exposure 3 of trigger 1186908
find_uvot_ag.pl vrs. 2023-04-25a fem started at 230824d02h48m09s861013usUT
Observation start time is 2023-08-24T02:39:36.9
Examining file 1186908_g911_uvot_sources_image.fits
The exposure ID is 714537576
The exposure is 149.868 sec.
The bin size is 2 pixels
The filter is WHITE
There are 14 detected source(s) for 1186908_g911
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 83.5389 , 21.5789 with radius 2.00 arc min.
n_usno: 104 n_gsc: 93
Bright star catalog has no entries brighter than 12 mag
*** WARNING -- no XRT distances are available.
Found 14 entries without IDs and 14 entries that are acceptable afterglow candidates for 1186908_g911.
Acceptable entries have no ID, BAT distance < 210" or XRT distance < 20", 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=83.5330 (05:34:07.92) DEC=21.6090 (+21:36:32.4)
XRT distances are as reported in catalog file.
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 1186908_g911 with genie
ra=83.52823 (05:34:06.78) dec=21.57074 (+21:34:14.7) +/- 1.0" mag=19.74+/-0.25
dist=138.7 REFID=1 major=0.7 minor=0.6 flag=0
Found 2 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
83.5249 21.5670 17.5 -1 USNO-B1 20.51 18.82 19.57
83.5249 21.5670 17.4 -1 GSC2.3 18.95 20.75 99.99
uvot_check_outside found 12 of 12 good pixels
##### This source remains a candidate #####
It has no entries within 13.5" or brighter than 12 mag
-----------------
Entry 1 in the list of sources is a candidate afterglow for 1186908_g911 with genie
ra=83.53864 (05:34:09.27) dec=21.58698 (+21:35:13.1) +/- 0.8" mag=17.37+/-0.14
dist=81.5 REFID=2 major=2.2 minor=0.7 flag=0
Found 5 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
83.5403 21.5874 5.9 -1 USNO-B1 19.73 17.70 18.60 *
83.5406 21.5875 6.9 -1 USNO-B1 20.04 17.83 18.81 *
83.5399 21.5890 8.6 -1 USNO-B1 19.04 17.52 18.19 *
83.5404 21.5873 6.0 -1 GSC2.3 18.13 19.40 18.52 *
83.5399 21.5891 8.8 -1 GSC2.3 17.83 18.90 18.39 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 2 in the list of sources is a candidate afterglow for 1186908_g911 with genie
ra=83.54956 (05:34:11.90) dec=21.58427 (+21:35:03.4) +/- 0.8" mag=17.43+/-0.14
dist=104.9 REFID=3 major=2.4 minor=0.9 flag=0
Found 1 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
83.5525 21.5889 19.3 -1 GSC2.3 20.26 99.99 99.99
*** unacceptable major profile of 2.4
-----------------
Entry 3 in the list of sources is a candidate afterglow for 1186908_g911 with genie
ra=83.53448 (05:34:08.28) dec=21.58282 (+21:34:58.2) +/- 0.8" mag=18.49+/-0.16
dist=94.4 REFID=4 major=1.2 minor=0.7 flag=0
Found 4 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
83.5330 21.5800 11.4 -1 USNO-B1 20.05 17.61 18.69 *
83.5319 21.5854 12.8 -1 USNO-B1 20.39 18.38 19.27 *
83.5330 21.5799 11.5 -1 GSC2.3 17.68 19.89 18.44 *
83.5320 21.5854 12.5 -1 GSC2.3 18.41 21.09 18.75 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 4 in the list of sources is a candidate afterglow for 1186908_g911 with genie
ra=83.53639 (05:34:08.73) dec=21.58439 (+21:35:03.8) +/- 0.8" mag=18.33+/-0.16
dist=89.3 REFID=5 major=1.8 minor=0.7 flag=1 (neighbor)
Found 7 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
83.5330 21.5800 19.5 -1 USNO-B1 20.05 17.61 18.69
83.5403 21.5874 17.1 -1 USNO-B1 19.73 17.70 18.60
83.5406 21.5875 18.0 -1 USNO-B1 20.04 17.83 18.81
83.5319 21.5854 15.5 -1 USNO-B1 20.39 18.38 19.27
83.5330 21.5799 19.6 -1 GSC2.3 17.68 19.89 18.44
83.5404 21.5873 17.1 -1 GSC2.3 18.13 19.40 18.52
83.5320 21.5854 15.3 -1 GSC2.3 18.41 21.09 18.75
*** unacceptable major profile of 1.8
-----------------
Entry 5 in the list of sources is a candidate afterglow for 1186908_g911 with genie
ra=83.53139 (05:34:07.53) dec=21.58053 (+21:34:49.9) +/- 0.7" mag=17.06+/-0.14
dist=102.6 REFID=6 major=1.1 minor=0.9 flag=2 (blended)
Found 6 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
83.5330 21.5800 5.8 -1 USNO-B1 20.05 17.61 18.69 *
83.5319 21.5854 17.7 -1 USNO-B1 20.39 18.38 19.27
83.5263 21.5777 19.8 -1 USNO-B1 19.01 16.43 17.57
83.5330 21.5799 6.0 -1 GSC2.3 17.68 19.89 18.44 *
83.5320 21.5854 17.5 -1 GSC2.3 18.41 21.09 18.75
83.5264 21.5777 19.7 -1 GSC2.3 16.63 18.84 17.43
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 6 in the list of sources is a candidate afterglow for 1186908_g911 with genie
ra=83.53267 (05:34:07.84) dec=21.57765 (+21:34:39.5) +/- 0.7" mag=16.42+/-0.14
dist=112.9 REFID=7 major=1.4 minor=1.3 flag=3 (neighbor+blended)
Found 2 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
83.5330 21.5800 8.4 -1 USNO-B1 20.05 17.61 18.69 *
83.5330 21.5799 8.3 -1 GSC2.3 17.68 19.89 18.44 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 7 in the list of sources is a candidate afterglow for 1186908_g911 with genie
ra=83.52996 (05:34:07.19) dec=21.57692 (+21:34:36.9) +/- 0.7" mag=17.24+/-0.14
dist=115.9 REFID=8 major=1.1 minor=0.7 flag=3 (neighbor+blended)
Found 4 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
83.5330 21.5800 15.0 -1 USNO-B1 20.05 17.61 18.69
83.5263 21.5777 12.6 -1 USNO-B1 19.01 16.43 17.57 *
83.5330 21.5799 14.9 -1 GSC2.3 17.68 19.89 18.44
83.5264 21.5777 12.4 -1 GSC2.3 16.63 18.84 17.43 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 8 in the list of sources is a candidate afterglow for 1186908_g911 with genie
ra=83.54519 (05:34:10.85) dec=21.58002 (+21:34:48.1) +/- 0.9" mag=19.29+/-0.20
dist=112.0 REFID=9 major=1.3 minor=0.8 flag=0
Found 2 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
83.5419 21.5802 10.9 -1 USNO-B1 20.14 18.40 19.17 *
83.5419 21.5802 11.0 -1 GSC2.3 18.49 20.61 18.81 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 9 in the list of sources is a candidate afterglow for 1186908_g911 with genie
ra=83.54227 (05:34:10.14) dec=21.57780 (+21:34:40.1) +/- 0.8" mag=17.47+/-0.15
dist=116.5 REFID=10 major=1.3 minor=1.0 flag=2 (blended)
Found 3 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
83.5419 21.5802 8.8 -1 USNO-B1 20.14 18.40 19.17 *
83.5426 21.5723 19.9 -1 USNO-B1 99.99 19.29 99.99
83.5419 21.5802 8.9 -1 GSC2.3 18.49 20.61 18.81 *
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 10 in the list of sources is a candidate afterglow for 1186908_g911 with genie
ra=83.54387 (05:34:10.53) dec=21.57692 (+21:34:36.9) +/- 0.8" mag=18.45+/-0.16
dist=121.1 REFID=11 major=1.0 minor=0.7 flag=3 (neighbor+blended)
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
83.5419 21.5802 13.6 -1 USNO-B1 20.14 18.40 19.17
83.5426 21.5723 17.2 -1 USNO-B1 99.99 19.29 99.99
83.5446 21.5716 19.2 -1 USNO-B1 99.99 19.49 99.99
83.5483 21.5740 18.3 -1 USNO-B1 20.56 19.23 19.82
83.5419 21.5802 13.6 -1 GSC2.3 18.49 20.61 18.81
83.5425 21.5723 17.4 -1 GSC2.3 19.82 99.99 99.99
83.5445 21.5718 18.6 -1 GSC2.3 19.97 99.99 99.99
83.5484 21.5740 18.4 -1 GSC2.3 19.73 20.97 18.95
uvot_check_outside found 13 of 13 good pixels
##### This source remains a candidate #####
It has no entries within 13.5" or brighter than 12 mag
-----------------
Entry 11 in the list of sources is a candidate afterglow for 1186908_g911 with genie
ra=83.54356 (05:34:10.45) dec=21.57493 (+21:34:29.8) +/- 0.7" mag=17.14+/-0.14
dist=127.6 REFID=12 major=1.4 minor=1.4 flag=3 (neighbor+blended)
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
83.5419 21.5802 19.9 -1 USNO-B1 20.14 18.40 19.17
83.5426 21.5723 10.0 -1 USNO-B1 99.99 19.29 99.99 *
83.5446 21.5716 12.3 -1 USNO-B1 99.99 19.49 99.99 *
83.5483 21.5740 16.3 -1 USNO-B1 20.56 19.23 19.82
83.5419 21.5802 19.9 -1 GSC2.3 18.49 20.61 18.81
83.5425 21.5723 10.2 -1 GSC2.3 19.82 99.99 99.99 *
83.5445 21.5718 11.7 -1 GSC2.3 19.97 99.99 99.99 *
83.5484 21.5740 16.4 -1 GSC2.3 19.73 20.97 18.95
Due to star catalog entries marked with *, this is probably NOT the afterglow
These entries are within 13.5" or brighter than 12 mag
-----------------
Entry 12 in the list of sources is a candidate afterglow for 1186908_g911 with genie
ra=83.54088 (05:34:09.81) dec=21.57418 (+21:34:27.0) +/- 0.8" mag=17.52+/-0.15
dist=128.1 REFID=13 major=1.2 minor=0.8 flag=3 (neighbor+blended)
Found 4 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
83.5426 21.5723 9.0 -1 USNO-B1 99.99 19.29 99.99 *
83.5446 21.5716 15.3 -1 USNO-B1 99.99 19.49 99.99
83.5425 21.5723 8.9 -1 GSC2.3 19.82 99.99 99.99 *
83.5445 21.5718 14.8 -1 GSC2.3 19.97 99.99 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
-----------------
Entry 13 in the list of sources is a candidate afterglow for 1186908_g911 with genie
ra=83.53030 (05:34:07.27) dec=21.57274 (+21:34:21.9) +/- 0.8" mag=18.25+/-0.15
dist=130.9 REFID=14 major=2.3 minor=0.6 flag=0
Found 0 entries in star catalog(s) within 20.0" of the candidate.
*** unacceptable major profile of 2.3
separation of 0 and 10 is 56.9 arc sec
There are 2.2814778E+05 counts in the bkg source region of 5192.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 43.942 counts/pixel (5-sig UL in 4" is 19.30 mag) for 1186908_g911
There are 2787.9053 counts in the src source region of 51.000000 pixels.
Rate in src region with 4 arcsec radius is 54.665 counts/pixel for 1186908_g911
There are 51848.504 counts in the cand_src_bkg source region of 1174.0000 pixels.
Rate in cand_src_bkg region from 15 to 25 arcsec is 44.164 counts/pixel (5-sig UL in 4" is 19.29 mag) for 1186908_g911
Good candidates have no ID, acceptable profiles,
mag between 9.01 and 19.29, BAT distances < 210",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 1 good candidate(s) found.
Results are questionable because aspect solution FAILED.
Region file: 1186908_714537576_230824d02h48m09s861013usUT_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(83.5373,21.5857,45")
fk5;-circle(83.5386420583861,21.5869750166648,6")
fk5;-circle(83.5495638106269,21.5842687348492,6")
fk5;-circle(83.5344819455884,21.5828241014045,6")
fk5;-circle(83.5363857646268,21.5843930643295,6")
fk5;-circle(83.5313882502008,21.5805300156704,6")
fk5;-circle(83.5326670511812,21.57764908505,6")
fk5;-circle(83.5299585181054,21.5769179080588,6")
fk5;-circle(83.5451926890445,21.580022227127,6")
fk5;-circle(83.5422650795723,21.5778029215057,6")
fk5;-circle(83.5438670280805,21.5769245002865,6")
fk5;-circle(83.5435608897111,21.5749308564732,6")
fk5;-circle(83.5408811021238,21.5741777980285,6")
Region file: 1186908_714537576_230824d02h48m09s861013usUT_cand_src.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(83.5438670280805,21.5769245002865,4")
Region file: 1186908_714537576_230824d02h48m09s861013usUT_cand_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(83.5438670280805,21.5769245002865,25")
fk5;-circle(83.5438670280805,21.5769245002865,15")
fk5;-circle(83.5451926890445,21.580022227127,6")
fk5;-circle(83.5408811021238,21.5741777980285,6")
image paragraph message for exposure 3 of trigger 1186908
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 GRB230824 (Swift/BAT trigger 1186908) at 02:24:24 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 880 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 0.567.
------- notes for trigger 1186908 ------
uvot_gcn_auto.pl vrs. 2023-03-28 fem at 230824d02h48m11s439508usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1186908
-expid=714537576 -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/1186908/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
No XRT position found for Genie image. BAT position found.
UVOT exposure began at MET 714537576.92938 or about 2023:236:02:39:31 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 14 source(s) in Genie image catalog. Found 14 Genie image source(s)
without IDs. There are 1 good candidate(s) in the Genie image catalog. Good
candidates must be brighter than 19.29 mag. Found 100 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
17% of the Genie image region. The Genie image is INCOMPLETE with 2941 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?
714537576 880 WHITE srclist data are not available.
714537576 880 WHITE 83.54387 21.57692 18.45/19.3 121.1 image No
714537576 880 WHITE 83.52823 21.57074 19.74/19.3 138.7 image No
List afterglow candidates for other finding charts.
714536836 140 ? srclist data are not available.
714536836 140 WHITE 83.52844 21.62684 17.54/19.5 66.0 image No
714536994 298 ? srclist data are not available.
714536994 298 U image found no candidates.
------- Tokens for Quick GCN -------