srclist overlap message for exposure 1 of trigger 1080859
uvot_overlap.pl vrs. 2010-12-20b fem started at 211024d06h45m59s000963usUT
The observation of trigger 1080859 started 2021-10-23T21:07:57.6
Examining file ./1080859_g124_uvot_sky_srclist.fits
The exposure ID is 656716077
The exposure time is undefined.
The filter is WHITE.
The uvot region is centered at (170.3081,39.1350) with a roll angle of 136.6
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 (170.3020,39.1370) with a radius of 3.000 arc min
This is 0.310 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 (170.3087,39.1353) with a radius of 0.045 arc min
This is 0.034 arc min from the center of the uvot region
The area of the XRT error circle is 0.006 sq. arc min
The UVOT/XRT overlap is 0.006 sq. arc min or 1.00 of the XRT error circle
srclist afterglow message for exposure 1 of trigger 1080859
find_uvot_ag.pl vrs. 2020-10-30 fem started at 211024d06h46m03s096942usUT
Observation start time is 2021-10-23T21:07:57.6
Examining file ./1080859_g124_uvot_catalog_srclist.fits
The exposure ID is 656716077
The exposure is 149.857 sec.
The bin size is 2 pixels
The filter is WHITE
There are 21 detected source(s) for 1080859_g124
Aspect correction adds -0.00056 degrees (-0.134 sec of time = -1.56 arc sec) to RA
Aspect correction adds -0.00073 degrees (-2.64 arcsec) to Dec
Total aspect correction is 3.07 arcsec
Star catalogs centered at 170.3148 , 39.1274 with radius 5.98 arc min.
n_usno: 195 n_gsc: 0
*** WARNING -- bright star catalog has 1 entries brighter than 12 mag
The brightest has mag 10.49638
RA DEC Mag Color
bright star 0: 170.24289 (11:20:58.29) 39.12339 (+39:07:24.2) 10.50 USNO-V
Mean distance difference (CAT_DELTA) for 13 matched entries is 0.608" for 1080859_g124
Mean and std. dev of mag. difference (MAG_DELTA) are 1.174 and 0.791 for 1080859_g124
Found 8 entries without IDs and 0 entries that are acceptable afterglow candidates for 1080859_g124.
Acceptable entries have no ID, XRT distances < 6.75", and are > 0.8*(80 - 10*(mag-6))" from any bright star
from any bright star and >21.6" from other rejected sources.
8 sources matched bright stars.
Magnitude criteria will be applied later.
BAT distances are from RA=170.3020 (11:21:12.48) DEC=39.1370 (+39:08:13.2)
XRT distances are from RA=170.3087 (11:21:14.09) DEC=39.1353 (+39:08:07.2)
*** WARNING 38 per cent of entries have no IDs.
Found NO acceptable entries.
Unidentified entry closest to XRT position is no. 1:
ra=170.24490 dec= 39.12698 +/- 1.1" mag=16.52+/-0.35 dist=180.7 REFID=4
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 19.22, XRT distances < 6.75",
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 1080859
------ Start for Possible Stand-alone Circular ----
In response to GRB211023 (Swift/BAT trigger 1080859) at 21:05:52 UT,
---- UVOT paragraph for Joint or Stand-alone Circular ----
UVOT took a finding chart exposure of 150 seconds with the White filter
starting 97 seconds after the BAT trigger. There is a candidate afterglow in
the rapidly available 2.7'x2.7' sub-image at
RA(J2000) = 11:21:14.31 = 170.30963
DEC(J2000) = +39:08:08.8 = 39.13578
with a 90%-confidence error radius of about 0.79 arc sec. This position is 3.0
arc sec. from the center of the XRT error circle. The estimated magnitude is
19.32 with a 1-sigma error of about 0.16. No correction has been made for the
expected extinction corresponding to E(B-V) of 0.024.
------- notes for trigger 1080859 ------
uvot_gcn_auto.pl vrs. 2020-10-27 fem at 211024d06h46m07s108268usUT
Command line: /Home/eud/uvot_tdrss/perl/uvot_gcn_auto.pl -trig=1080859
-expid=656716077 -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/1080859/
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 656716077.58564 or about 2021:296:21:07:52 UT
Found 191 stars in largest star catalog for srclist region. The stars will
eliminate afterglows from about 3% of the srclist region. Found 21 sources in
srclist catalog. Found 8 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 3 source(s) in Genie image catalog. 1 source(s) are within 10.0" of the
xrt position. Found 1 Genie image source(s) without IDs. There are 1 good
candidate(s) in the Genie image catalog. Good candidates must be brighter than
20.42 mag. Found 19 stars in largest star catalog for Genie image region. The
stars will eliminate afterglows from about 3% of the Genie image region. The
closest srclist source has ra= 170.3018 dec= 39.1436 mag=17.74 sep=35.34".
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?
656716077 96 WHITE srclist found no candidates.
656716077 96 WHITE 170.30963 39.13578 19.32/20.4 3.0 image Yes
List afterglow candidates for other finding charts.
656716290 309 U srclist found no candidates.
656716290 309 U image found no candidates.
656716843 862 WHITE srclist found no candidates.
656716843 862 WHITE image found no candidates.
------- Tokens for Quick GCN -------
CATALOG_TYPE: IMAGE
FILTER: white
GRB_DEC: 39.13578
GRB_ERROR: 0.79
GRB_RA: 170.30963
IMAGE_START_TIME: 21:07:52
MAGNITUDE: 19.32
MAG_ERROR: 0.16
MESSAGE_TYPE: ACK
SOURCE: XRT