image overlap message for exposure 1 of trigger 1085430
uvot_overlap.pl vrs. 2010-12-20b fem started at 211129d14h10m52s855536usUT
The observation of trigger 1085430 started 2021-11-29T09:52:58.3
Examining file ./1085430_g111_uvot_sky_image.fits
The exposure ID is 659872378
The exposure time is 149.846 (seconds)
The filter is WHITE.
The uvot region is centered at (274.5780,31.7840) with a roll angle of 211.3
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 (274.5570,31.7760) with a radius of 3.000 arc min
This is 1.173 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 (274.5803,31.7889) with a radius of 0.035 arc min
This is 0.314 arc min from the center of the uvot region
The area of the XRT error circle is 0.004 sq. arc min
The UVOT/XRT overlap is 0.004 sq. arc min or 1.00 of the XRT error circle
image afterglow message for exposure 1 of trigger 1085430
find_uvot_ag.pl vrs. 2020-10-30 fem started at 211129d14h10m58s688668usUT
Observation start time is 2021-11-29T09:52:58.3
Examining file ./1085430_g111_uvot_catalog_image.fits
The exposure ID is 659872378
The exposure is 149.846 sec.
The bin size is 2 pixels
The filter is WHITE
There are 12 detected source(s) for 1085430_g111
Aspect correction adds -0.00097 degrees (-0.232 sec of time = -2.96 arc sec) to RA
Aspect correction adds -0.00026 degrees (-0.95 arcsec) to Dec
Total aspect correction is 3.10 arcsec
Star catalogs centered at 274.5773 , 31.7865 with radius 2.64 arc min.
n_usno: 146 n_gsc: 0
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 11.4176
RA DEC Mag Color
bright star 0: 274.58802 (18:18:21.12) 31.79251 (+31:47:33.0) 11.42 USNO-V
Mean distance difference (CAT_DELTA) for 12 matched entries is 0.392" for 1085430_g111
Mean and std. dev of mag. difference (MAG_DELTA) are 0.902 and 1.121 for 1085430_g111
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 1085430_g111.
Acceptable entries have no ID, XRT distances < 5.25", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
0 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=274.5570 (18:18:13.68) DEC=31.7760 (+31:46:33.6)
XRT distances are from RA=274.5803 (18:18:19.27) DEC=31.7889 (+31:47:19.9)
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
There are 59616.125 counts in the bkg source region of 5914.0000 pixels.
Rate in bkg region from 0 to 45 arcsec is 10.081 counts/pixel (5-sig UL in 4" is 20.10 mag) for 1085430_g111
There are 2007.2025 counts in the xrt source region of 198.00000 pixels.
Rate in xrt region with 8 arcsec radius is 10.137 counts/pixel for 1085430_g111
There are 10574.037 counts in the xrt_bkg source region of 981.00000 pixels.
Rate in xrt_bkg region from 15 to 25 arcsec is 10.779 counts/pixel (5-sig UL in 4" is 20.06 mag) for 1085430_g111
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 20.65, XRT distances < 5.25",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
Region file: 1085430_659872378_211129d14h10m58s688668usUT_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(274.5780,31.7840,45")
fk5;-circle(274.582778955853,31.7930592540898,6")
fk5;-circle(274.584090235152,31.7839608144158,6")
fk5;-circle(274.588093299696,31.7925960858106,6")
fk5;-circle(274.576441758929,31.7948880277879,6")
Region file: 1085430_659872378_211129d14h10m58s688668usUT_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(274.58029,31.78886,8")
Region file: 1085430_659872378_211129d14h10m58s688668usUT_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(274.58029,31.78886,25")
fk5;-circle(274.58029,31.78886,15")
fk5;-circle(274.582778955853,31.7930592540898,6")
fk5;-circle(274.584090235152,31.7839608144158,6")
fk5;-circle(274.588093299696,31.7925960858106,6")
fk5;-circle(274.576441758929,31.7948880277879,6")
image paragraph message for exposure 1 of trigger 1085430
------ Start for Possible Stand-alone Circular ----
In response to GRB211129 (Swift/BAT trigger 1085430) at 09:51:06 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 83 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 19.6 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 mag. No
correction has been made for the expected extinction corresponding to E(B-V) of
0.081.
------- notes for trigger 1085430 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 211129d14h11m03s461857usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1085430
-expid=659872378 -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/1085430/
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 659872378.3095 or about 2021:333:09:52:53 UT
Found 877 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 13% of the srclist region. Found 140 sources in
srclist catalog. Found 10 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 12 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 20.65 mag. Found 142 stars in largest star
catalog for Genie image region. The stars will eliminate afterglows from about
14% of the Genie image region.
Genie image analysis:
Found 59616.1 counts in the large background region of 5914.0 pixels or a rate
of 10.081 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 19.92 mag. for a
4-arcsec aperture.
Found 2007.2 counts in the XRT position region of 198.0 pixels or a rate of
10.137 counts/pixel in a radius of 8.0 arcsec. The net count rate (using local
background region) at the XRT position is -0.847 +/- 0.329 (1-sigma) cps. The
3-sigma UL at the XRT position is 0.988 cps or 19.62 mag. The closest srclist
source has ra= 274.5847 dec= 31.7908 mag=20.00 sep=15.11". The closest Genie
source has ra= 274.5828 dec= 31.7931 mag=16.73 sep=16.93".
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?
659872378 83 WHITE srclist found no candidates.
659872378 83 WHITE image found no candidates.
List afterglow candidates for other finding charts.
659872591 296 U srclist found no candidates.
659872591 296 U image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 31.78886
GRB_ERROR: 5.25
GRB_RA: 274.58029
IMAGE_START_TIME: 09:52:53
MAGNITUDE: 19.6
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT