image overlap message for exposure 2 of trigger 1095288
uvot_overlap.pl vrs. 2010-12-20b fem started at 220306d20h10m13s590525usUT
The observation of trigger 1095288 started 2022-03-06T18:21:08.0
Examining file ./1095288_g329_uvot_sky_image.fits
The exposure ID is 668283667
The exposure time is 249.935 (seconds)
The filter is U.
The uvot region is centered at (5.3776,71.3491) with a roll angle of 198.4
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 (5.3780,71.3540) with a radius of 3.000 arc min
This is 0.295 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 7.17 sq. arc min or 0.25 of the BAT error circle
The XRT error circle is centered at (5.3879,71.3636) with a radius of 0.038 arc min
This is 0.894 arc min from the center of the uvot region
The area of the XRT error circle is 0.005 sq. arc min
The UVOT/XRT overlap is 0.005 sq. arc min or 1.00 of the XRT error circle
image afterglow message for exposure 2 of trigger 1095288
find_uvot_ag.pl vrs. 2020-10-30 fem started at 220306d20h10m31s045427usUT
Observation start time is 2022-03-06T18:21:08.0
Examining file ./1095288_g329_uvot_catalog_image.fits
The exposure ID is 668283667
The exposure is 249.935 sec.
The bin size is 2 pixels
The filter is U
There are 13 detected source(s) for 1095288_g329
Aspect correction adds -0.00028 degrees (-0.066 sec of time = -0.32 arc sec) to RA
Aspect correction adds -0.00045 degrees (-1.64 arcsec) to Dec
Total aspect correction is 1.67 arcsec
Star catalogs centered at 5.3678 , 71.3537 with radius 2.63 arc min.
n_usno: 231 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 13 matched entries is 0.493" for 1095288_g329
Mean and std. dev of mag. difference (MAG_DELTA) are 1.479 and 0.680 for 1095288_g329
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 1095288_g329.
Acceptable entries have no ID, XRT distances < 5.75", 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= 5.3780 (00:21:30.72) DEC=71.3540 (+71:21:14.4)
XRT distances are from RA= 5.3879 (00:21:33.10) DEC=71.3636 (+71:21:49.0)
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
There are 37332.781 counts in the bkg source region of 6086.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 6.134 counts/pixel (5-sig UL in 4" is 19.48 mag) for 1095288_g329
There are 1199.7310 counts in the xrt source region of 199.00000 pixels.
Rate in xrt region with 8 arcsec radius is 6.029 counts/pixel for 1095288_g329
XRT source is too far (53.5701769355262") from center -- do not compute local background.
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 20.03, XRT distances < 5.75",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 1095288_668283667_220306d20h10m31s045427usUT_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(5.3776,71.3491,45")
fk5;-circle(5.39959000159543,71.3504190249252,6")
fk5;-circle(5.39582138765022,71.3478136534127,6")
Region file: 1095288_668283667_220306d20h10m31s045427usUT_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(5.38792,71.36361,8")
image paragraph message for exposure 2 of trigger 1095288
SRCLIST PROBLEM: srclist filled telemetry buffer
------ Start for Possible Stand-alone Circular ----
In response to GRB220306 (Swift/BAT trigger 1095288) at 18:15:37 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 250 seconds with the U filter starting
301 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 100% of the
XRT error circle. The typical 3-sigma upper limit has been about 19.2 mag. 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 18.0 mag. No
correction has been made for the expected extinction corresponding to E(B-V) of
0.578.
------- notes for trigger 1095288 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 220306d20h10m36s627708usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1095288
-expid=668283667 -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/1095288/
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 668283667.9557 or about 2022:065:18:21:02 UT
Found 2887 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 23% of the srclist region. Found 190 sources in
srclist catalog. WARNING -- srclist catalog buffer filled. Found 68 srclist
source(s) without IDs. There are 0 good candidate(s) in the srclist catalog.
Good candidates must be brighter than 18.12 mag.
Found 13 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 20.03 mag. Found 227 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
22% of the Genie image region.
Genie image analysis:
Found 37332.8 counts in the large background region of 6086.0 pixels or a rate
of 6.134 counts/pixel in a radius of 45.0 arcsec. Based on this background, the
typical 5-sigma UL at a random point in the Genie image is 19.32 mag. for a
4-arcsec aperture.
Found 1199.7 counts in the XRT position region of 199.0 pixels or a rate of
6.029 counts/pixel in a radius of 8.0 arcsec. The net count rate (using large
background region) at the XRT position is -0.084 +/- 0.141 (1-sigma) cps. The
3-sigma UL at the XRT position is 0.422 cps or 19.11 mag. The number of srclist
sources filled the available telemetry. The weakest source detected was 18.42
mag. The closest srclist source has ra= 5.4008 dec= 71.3504 mag=18.30
sep=49.96". The closest Genie source has ra= 5.3991 dec= 71.3700 mag=19.69
sep=26.41".
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?
668283667 300 U srclist found no candidates.
668283667 300 U image found no candidates.
List afterglow candidates for other finding charts.
668283455 88 WHITE srclist found no candidates.
668283455 88 WHITE image found no candidates.
668284247 880 WHITE srclist found no candidates.
668284247 880 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: u
GRB_DEC: 71.36361
GRB_ERROR: 5.75
GRB_RA: 5.38792
IMAGE_START_TIME: 18:21:02
MAGNITUDE: 19.1
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT