srclist overlap message for exposure 1 of trigger 1088940
uvot_overlap.pl vrs. 2010-12-20b fem started at 211211d19h44m33s006085usUT
The observation of trigger 1088940 started 2021-12-11T13:11:55.8
Examining file ./1088940_g115_uvot_sky_srclist.fits
The exposure ID is 660921115
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (212.2790,27.8796) with a roll angle of 133.8
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 (212.2720,27.8840) 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 (212.2920,27.8886) with a radius of 0.035 arc min
This is 0.877 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
srclist afterglow message for exposure 1 of trigger 1088940
find_uvot_ag.pl vrs. 2020-10-30 fem started at 211211d19h44m33s543669usUT
Observation start time is 2021-12-11T13:11:55.8
Examining file ./1088940_g115_uvot_catalog_srclist.fits
The exposure ID is 660921115
The exposure is 150.000 sec.
The bin size is 2 pixels
The filter is WHITE
There are 12 detected source(s) for 1088940_g115
Aspect correction adds 0.00051 degrees (0.123 sec of time = 1.63 arc sec) to RA
Aspect correction adds 0.00018 degrees ( 0.65 arcsec) to Dec
Total aspect correction is 1.76 arcsec
Star catalogs centered at 212.2718 , 27.8753 with radius 6.09 arc min.
n_usno: 438 n_gsc: 0
Bright star catalog has no entries brighter than 12 mag
Mean distance difference (CAT_DELTA) for 12 matched entries is 0.512" for 1088940_g115
Mean and std. dev of mag. difference (MAG_DELTA) are 1.226 and 0.384 for 1088940_g115
Found 0 entries without IDs and 0 entries that are acceptable afterglow candidates for 1088940_g115.
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.
Magnitude criteria will be applied later.
BAT distances are from RA=212.2720 (14:09:05.28) DEC=27.8840 (+27:53:02.4)
XRT distances are from RA=212.2920 (14:09:10.09) DEC=27.8886 (+27:53:18.8)
Found 3 entries in star catalog(s) within 10" of the XRT position.
RA Dec Sep. Match USNO/ USNO-B USNO-R USNO-V
GSC GSC-F GSC-J GSC-V
212.2902 27.8905 9.2 -1 USNO-B1 99.99 19.68 99.99
212.2937 27.8892 5.7 -1 USNO-B1 20.50 19.26 19.81
212.2937 27.8895 6.3 -1 USNO-B1 20.95 19.46 20.12
The closest star is 5.67" away.
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 19.22, XRT distances < 5.25",
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 1088940
------ Start for Possible Stand-alone Circular ----
In response to GRB211211 (Swift/BAT trigger 1088940) at 13:09:59 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of nominal 150.000 seconds with the White
filter starting 87 seconds after the BAT trigger. No credible afterglow
candidate has been found in the initial data products. Data from the 2.7'x2.7'
sub-image are not available at this time. 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 0.018.
------- notes for trigger 1088940 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 211211d19h44m34s938373usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1088940
-expid=660921115 -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/1088940/
Links to data for all triggers can be found at
http://heasarc.gsfc.nasa.gov/docs/swift/uvot_tdrss/
*** Warning -- no exposure found, using srclist assumed value.
XRT position found for srclist. BAT position found.
UVOT exposure began at MET 660921115.83748 or about 2021:345:13:11:50 UT
Found 434 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 8% of the srclist region. Found 12 sources in
srclist catalog. Found 0 srclist source(s) without IDs. There are 0 good
candidate(s) in the srclist catalog. Good candidates must be brighter than
19.22 mag.
The closest srclist source has ra= 212.2870 dec= 27.8988 mag=18.48 sep=40.16".
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?
660921115 87 WHITE srclist found no candidates.
660921115 87 ? image data are not available.
List afterglow candidates for other finding charts.
------- Tokens for Quick GCN -------
CATALOG_TYPE: SRCLIST
FILTER: white
GRB_DEC: 27.88856
GRB_ERROR: 5.25
GRB_RA: 212.29204
IMAGE_START_TIME: 13:11:50
MAGNITUDE: 18.0
MAG_ERROR: 3.0
MESSAGE_TYPE: NACK
SOURCE: XRT