image overlap message for exposure 3 of trigger 950330
uvot_overlap.pl vrs. 2010-12-20b fem started at 200122d05h01m38s735754usUT
The observation of trigger 950330 started 2020-01-22T01:55:58.8
Examining file ./950330_g897_uvot_sky_image.fits
The exposure ID is 601350958
The exposure time is 149.813 (seconds)
The filter is WHITE.
*** Warning -- found 23258 null pixels in the image.
The uvot region is centered at (210.0224,27.5507) with a roll angle of 106.2
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 (209.9810,27.5660) with a radius of 3.000 arc min
This is 2.386 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 3.90 sq. arc min or 0.14 of the BAT error circle
The XRT error circle is centered at (210.0181,27.5488) with a radius of 0.028 arc min
This is 0.257 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 0.00 sq. arc min or 0.00 of the XRT error circle
image afterglow message for exposure 3 of trigger 950330
find_uvot_ag.pl vrs. 2017-02-17 fem started at 200122d05h01m52s653376usUT
Observation start time is 2020-01-22T01:55:58.8
Examining file ./950330_g897_uvot_sources_image.fits
The exposure ID is 601350958
The exposure is 149.813 sec.
The bin size is 2 pixels
The filter is WHITE
There are 0 detected source(s) for 950330_g897
*** WARNING -- Aspect solution FAILED.
Results need to be checked by, for example, blinking image with DS9.
Star catalogs centered at 209.9701 , 27.5747 with radius 2.00 arc min.
n_usno: 31 n_gsc: 0
*** WARNING -- XRT position is outside star catalog search region.
Bright star catalog has no entries brighter than 12 mag
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 950330_g897.
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=209.9810 (13:59:55.44) DEC=27.5660 (+27:33:57.6)
XRT distances are from RA=210.0181 (14:00:04.34) DEC=27.5488 (+27:32:55.8)
Found 0 entries in star catalog(s) within 20" of the XRT position.
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",
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: 950330_601350958_200122d05h01m52s653376usUT_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(210.0224,27.5507,45")
Region file: 950330_601350958_200122d05h01m52s653376usUT_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(210.01808,27.54883,8")
Region file: 950330_601350958_200122d05h01m52s653376usUT_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(210.01808,27.54883,25")
fk5;-circle(210.01808,27.54883,15")
image paragraph message for exposure 3 of trigger 950330
IMAGE PROBLEM: incomplete image, no overlap
------ Start for Possible Stand-alone Circular ----
In response to GRB200122 (Swift/BAT trigger 950330) at 01:41:00 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 874 seconds after the BAT trigger. No credible afterglow candidate has
been found in the initial data products. The 2.7'x2.7' sub-image covers none of
the XRT error circle. The 8'x8' region for the list of sources generated
on-board covers 100% of the XRT error circle. The list of sources is typically
complete to about 18 mag. No correction has been made for the expected
extinction corresponding to E(B-V) of 0.03.
------- notes for trigger 950330 ------
uvot_gcn_auto.pl vrs. 2016-09-07 fem at 200122d05h01m56s557031usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=950330
-expid=601350958 -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/950330/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
XRT position found for srclist. XRT position found for Genie image. BAT
position found.
UVOT exposure began at MET 601350958.80054 or about 2020:022:01:55:53 UT
Found 734 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 6% of the srclist region. Found 30 sources in
srclist catalog. Found 6 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
19.22 mag.
Found 0 source(s) in Genie image catalog. Found 0 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 27 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 4% of the
Genie image region. The XRT position was OUTSIDE the star catalog search
region. The Genie image is INCOMPLETE with 23258 null pixels.
Found no Genie image background information. The closest srclist source has ra=
210.0113 dec= 27.5529 mag=16.48 sep=26.06".
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?
601350958 873 WHITE srclist found no candidates.
601350958 873 WHITE image found no candidates.
List afterglow candidates for other finding charts.
601350166 81 WHITE srclist found no candidates.
601350166 81 WHITE image found no candidates.
601350378 293 U srclist found no candidates.
601350378 293 ? image data are not available.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: 27.54883
GRB_ERROR: 5
GRB_RA: 210.01808
IMAGE_START_TIME: 01:55:53
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT