Event between (471136) 10EO65 and star UC4-285-093800 with event index number of 146469
Geocentric closest approach at 2018/05/12 21:26:57 UTC
J2000 position of star is 16:32:44.8 -33:08:19
Equinox of date position of star is 16:33:54.5 -33:10:31
Stellar brightness R=15.5,
use SENSEUP=128
Star is 125 degrees from the moon.
Moon is 9% illuminated.
TNO apparent brightness V=21.1
TNO is 14.4 AU from the Sun
and 13.4 AU from the Earth.
The TNO is moving 18.4
km/sec on the sky relative to the star, or,
6.8 arcsec/hr.
The 1-sigma error in the time of the event is 153 seconds.
The 1-sigma cross-track error in the shadow position is
692 km.
The TNO has an absolute magnitude Hv=9.5
Diameter=75.9 km assuming a 5% albedo -- 4.1 sec chord
Diameter=31.0 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
Star training set for 471136, (2018/05/12 21:27UT) Object RA Dec mag sep mel Antares 16:30:32.2 -26:28:16 0.9 6.75 128 26Eps Sco 16:51:21.4 -34:19:30 2.3 3.80 121 PPM 295143 16:32:35.1 -34:44:34 4.2 1.59 124 PPM 295160 16:33:19.5 -33:30:43 8.4 0.36 125 PPM 295187 16:34:56.2 -33:23:16 9.5 0.30 124 471136 16:33:56.2 -33:10:34 15.5 124 Positions are for equinox of date
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 471136, (2018/05/12 21:27UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 6.75 128 26Eps Sco 16:50:08.9 -34:17:40 2.3 3.80 121 PPM 295143 16:31:22.9 -34:42:16 4.2 1.59 124 PPM 295160 16:32:07.9 -33:28:26 8.4 0.36 125 PPM 295187 16:33:44.7 -33:21:02 9.5 0.30 124 471136 16:32:44.8 -33:08:19 15.5 125 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:31:48 UT
Marc W. Buie, Southwest Research Institute