image overlap message for exposure 1 of trigger 841548
uvot_overlap.pl vrs. 2010-12-20b fem started at 180615d03h11m27s426788usUT
The observation of trigger 841548 started 2018-06-14T19:17:43.5
Examining file ./841548_g89_uvot_sky_image.fits
The exposure ID is 550696663
The exposure time is 149.857 (seconds)
The filter is WHITE.
*** Warning -- found 18742 null pixels in the image.
The uvot region is centered at (3.1648,46.9423) with a roll angle of 80.4
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 (3.1570,46.9430) with a radius of 3.000 arc min
This is 0.322 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 6.23 sq. arc min or 0.22 of the BAT error circle
The XRT error circle is centered at (3.0785,46.9530) with a radius of 0.030 arc min
This is 3.594 arc min from the center of the uvot region
The area of the XRT error circle is 0.003 sq. arc min
The UVOT/XRT overlap is 0.000 sq. arc min or 0.00 of the XRT error circle
image afterglow message for exposure 1 of trigger 841548
find_uvot_ag.pl vrs. 2017-02-17 fem started at 180615d03h11m29s954420usUT
Observation start time is 2018-06-14T19:17:43.5
Examining file ./841548_g89_uvot_sources_image.fits
The exposure ID is 550696663
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 4 detected source(s) for 841548_g89
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 3.1701 , 46.9559 with radius 2.14 arc min.
n_usno: 83 n_gsc: 76
*** WARNING -- XRT position is outside star catalog search region.
Bright star catalog has no entries brighter than 12 mag
Found 4 entries without IDs and 4 entries that are acceptable afterglow candidates for 841548_g89.
Acceptable entries have no ID, XRT distances < 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= 3.1570 (00:12:37.68) DEC=46.9430 (+46:56:34.8)
XRT distances are from RA= 3.0785 (00:12:18.83) DEC=46.9530 (+46:57:10.8)
*** WARNING 100 per cent of entries have no IDs.
-----------------
Entry 0 in the list of sources is a candidate afterglow for 841548_g89 with genie
ra=3.19485 (00:12:46.76) dec=46.94708 (+46:56:49.5) +/- 0.8" mag=19.86+/-0.18
dist=286.8 REFID=1 major=0.7 minor=0.5 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 94.2 arc sec from the BAT position.
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
3.1963 46.9468 3.7 -1 USNO-B1 19.16 17.29 18.12 *
3.1964 46.9468 3.9 -1 GSC2.3 16.98 18.61 17.48 *
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 1 in the list of sources is a candidate afterglow for 841548_g89 with genie
ra=3.15112 (00:12:36.27) dec=46.96481 (+46:57:53.3) +/- 1.3" mag=21.42+/-0.39
dist=183.5 REFID=2 major=1.0 minor=0.9 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 79.8 arc sec from the BAT position.
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
3.1524 46.9648 3.2 -1 USNO-B1 20.25 19.55 19.86 *
3.1469 46.9625 13.2 -1 USNO-B1 17.67 16.35 16.94 *
3.1526 46.9646 3.7 -1 GSC2.3 18.65 20.75 19.16 *
3.1470 46.9625 13.2 -1 GSC2.3 16.03 17.04 16.33 *
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 841548_g89 with genie
ra=3.14537 (00:12:34.89) dec=46.96259 (+46:57:45.3) +/- 0.7" mag=17.18+/-0.14
dist=168.0 REFID=3 major=1.0 minor=1.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 76.1 arc sec from the BAT position.
This source is near the edge of image (0.861)
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
3.1524 46.9648 19.0 -1 USNO-B1 20.25 19.55 19.86 *
3.1469 46.9625 3.8 -1 USNO-B1 17.67 16.35 16.94 *
3.1391 46.9661 20.0 -1 USNO-B1 20.76 19.70 20.17 *
3.1526 46.9646 19.2 -1 GSC2.3 18.65 20.75 19.16 *
3.1470 46.9625 4.0 -1 GSC2.3 16.03 17.04 16.33 *
3.1391 46.9660 19.7 -1 GSC2.3 19.16 20.17 19.18 *
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 3 in the list of sources is a candidate afterglow for 841548_g89 with genie
ra=3.19079 (00:12:45.79) dec=46.95825 (+46:57:29.7) +/- 0.8" mag=19.80+/-0.18
dist=276.6 REFID=4 major=1.1 minor=1.0 flag=0
*** The position of this source is inconsistent with the XRT position.
The position is 99.5 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
3.1885 46.9537 17.2 -1 USNO-B1 21.44 19.67 20.46 *
3.1888 46.9531 19.3 -1 USNO-B1 21.37 19.85 20.52 *
3.1924 46.9584 3.9 -1 USNO-B1 20.11 19.12 19.56 *
3.1949 46.9558 13.4 -1 USNO-B1 19.88 19.41 19.62 *
3.1957 46.9559 14.7 -1 USNO-B1 20.82 19.80 20.25 *
3.1886 46.9536 17.7 -1 GSC2.3 19.01 21.20 99.99 *
3.1925 46.9583 4.1 -1 GSC2.3 18.68 19.81 18.97 *
3.1958 46.9558 15.2 -1 GSC2.3 19.11 21.28 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 0 entries in star catalog(s) within 20" of the XRT position.
List UVOT sources within 20" of the XRT position:
There are 2075.5215 counts in the bkg source region of 208.00000 pixels.
Rate in bkg region from 0 to 45 arcsec is 9.978 counts/pixel (5-sig UL in 4" is 20.10 mag) for 841548_g89
Do not compute counts in XRT region because position is too far from center.
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 20.66, XRT distances < 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: 841548_550696663_180615d03h11m29s954420usUT_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(3.1648,46.9423,45")
image paragraph message for exposure 1 of trigger 841548
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 GRB180614 (Swift/BAT trigger 841548) at 19:16:13 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 68 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 0.14.
------- notes for trigger 841548 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 180615d03h11m33s682715usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=841548
-expid=550696663 -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/841548/
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 550696663.48638 or about 2018:165:19:17:38 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 4 source(s) in Genie image catalog. Found 4 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 20.66 mag. Found 79 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 11% of the
Genie image region. The XRT position was OUTSIDE the star catalog search
region. The Genie image is INCOMPLETE with 18742 null pixels.
The closest Genie source has ra= 3.1454 dec= 46.9626 mag=17.18 sep=167.98".
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?
550696663 68 ? srclist data are not available.
550696663 68 WHITE image found no candidates.
List afterglow candidates for other finding charts.
550696876 281 U srclist found no candidates.
550696876 281 U image found no candidates.
550697455 860 WHITE srclist found no candidates.
550697455 860 WHITE image found no candidates.
------- Tokens for Quick GCN -------