Event between 01RW143 and star UC4-502-003206 with event index number of 103951
Geocentric closest approach at 2018/02/10 13:50:39 UTC
J2000 position of star is 02:13:19.8 +10:17:32
Equinox of date position of star is 02:14:17.3 +10:22:32
Stellar brightness R=16.4,
use SENSEUP=128
Star is 131 degrees from the moon.
Moon is 24% illuminated.
TNO apparent brightness V=23.6
TNO is 41.8 AU from the Sun
and 42.1 AU from the Earth.
The TNO is moving 13.2
km/sec on the sky relative to the star, or,
1.6 arcsec/hr.
The 1-sigma error in the time of the event is 805 seconds.
The 1-sigma cross-track error in the shadow position is
5850 km.
The TNO has an absolute magnitude Hv=7.2
Diameter=220.8 km assuming a 5% albedo -- 16.7 sec chord
Diameter=90.1 km assuming a 30% albedo -- 6.8 sec chord
Dynamical classification is CLASSICAL
Star training set for 01RW143, (2018/02/10 13:51UT) Object RA Dec mag sep mel Aldebaran 04:36:57.7 +16:32:39 0.8 35.18 166 6Bet Ari 01:55:38.7 +20:53:45 2.6 11.43 129 65Xi 1Cet 02:13:57.7 +08:55:51 4.4 1.45 130 PPM 118030 02:13:28.1 +10:24:47 8.5 0.21 131 01RW143 02:14:17.9 +10:22:35 16.4 131 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 01RW143, (2018/02/10 13:51UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 35.18 166 6Bet Ari 01:54:38.5 +20:48:27 2.6 11.43 129 65Xi 1Cet 02:13:00.0 +08:50:48 4.4 1.45 130 PPM 118030 02:12:29.9 +10:19:43 8.5 0.21 131 01RW143 02:13:19.8 +10:17:32 16.4 131 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:15:37 UT
Marc W. Buie, Southwest Research Institute