srclist overlap message for exposure 1 of trigger 1010946
uvot_overlap.pl vrs. 2010-12-20b fem started at 201203d15h15m09s091777usUT
The observation of trigger 1010946 started 2020-12-03T06:54:56.9
Examining file ./1010946_g148_uvot_sky_srclist.fits
The exposure ID is 628671296
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (38.0772,-26.5452) with a roll angle of 215.5
It is square with sides of 8.03 arc min. for an area of 64.51 sq arc min
The BAT error circle is centered at (38.0800,-26.5380) with a radius of 3.000 arc min
This is 0.456 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 28.27 sq. arc min or 1.00 of the BAT error circle
The XRT error circle is centered at (38.0552,-26.5182) with a radius of 0.055 arc min
This is 2.002 arc min from the center of the uvot region
The area of the XRT error circle is 0.010 sq. arc min
The UVOT/XRT overlap is 0.010 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1010946
find_uvot_ag.pl vrs. 2020-10-30 fem started at 201203d15h15m10s642105usUT
Observation start time is 2020-12-03T06:54:56.9
Examining file ./1010946_g148_uvot_catalog_srclist.fits
The exposure ID is 628671296
The exposure is 68.183 sec.
The bin size is 2 pixels
The filter is WHITE
There are 15 detected source(s) for 1010946_g148
Aspect correction adds 0.00006 degrees (0.014 sec of time = 0.18 arc sec) to RA
Aspect correction adds -0.00059 degrees (-2.11 arcsec) to Dec
Total aspect correction is 2.12 arcsec
Star catalogs centered at 38.0931 , -26.5500 with radius 5.49 arc min.
n_usno: 323 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 17 matched entries is 0.824" for 1010946_g148
Mean and std. dev of mag. difference (MAG_DELTA) are 2.379 and 1.096 for 1010946_g148
Found 2 entries without IDs and 0 entries that are acceptable afterglow candidates for 1010946_g148.
Acceptable entries have no ID, XRT distances < 8.25", 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=38.0800 (02:32:19.20) DEC=-26.5380 (-26:32:16.8)
XRT distances are from RA=38.0552 (02:32:13.25) DEC=-26.5182 (-26:31:05.5)
Found NO acceptable entries.
Unidentified entry closest to XRT position is no. 11:
ra= 38.05596 dec=-26.59563 +/- 1.1" mag=20.69+/-0.35 dist=278.8 REFID=13
Found 0 entries in star catalog(s) within 10" of the XRT position.
List UVOT sources within 10" of the XRT position:
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 18.79, XRT distances < 8.25",
are > ~(80 - 10*(mag-6))" from any bright star, and have had duplicates removed.
SUMMARY: 0 good candidate(s) found.
srclist paragraph message for exposure 1 of trigger 1010946
IMAGE PROBLEM: no overlap
------ Start for Possible Stand-alone Circular ----
In response to GRB201203 (Swift/BAT trigger 1010946) at 06:52:27 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 68 seconds with the White filter
starting 123 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 0.02.
------- notes for trigger 1010946 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 201203d15h15m14s765523usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1010946
-expid=628671296 -meonly -msg_srclist
Results from standard processing of UVOT TDRSS data for this trigger should be
available at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/1010946/
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 628671296.89466 or about 2020:338:06:54:51 UT
Found 319 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 7% of the srclist region. Found 15 sources in
srclist catalog. Found 2 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
18.79 mag.
Found 5 source(s) in Genie image catalog. Found 1 Genie image source(s) without
IDs. There are 0 good candidate(s) in the Genie image catalog. Good candidates
must be brighter than 20.45 mag. Found 59 stars in largest star catalog for
Genie image region. The stars will eliminate afterglows from about 7% of the
Genie image region.
Genie image analysis:
Found 18693.7 counts in the large background region of 6144.0 pixels or a rate
of 3.043 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 19.71 mag. for a
4-arcsec aperture. The closest srclist source has ra= 38.0678 dec= -26.5209
mag=17.95 sep=41.83". The closest Genie source has ra= 38.0770 dec= -26.5234
mag=16.65 sep=72.54".
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?
628671296 122 WHITE srclist found no candidates.
628671296 122 WHITE image found no candidates.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: -26.51819
GRB_ERROR: 8.25
GRB_RA: 38.05521
IMAGE_START_TIME: 06:54:51
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT