Event between (469362) 01KB77 and star UC4-389-073214 with event index number of 149877
Geocentric closest approach at 2018/06/10 21:50:25 UTC
J2000 position of star is 17:12:19.7 -12:15:52
Equinox of date position of star is 17:13:19.9 -12:17:05
Stellar brightness R=16.2,
use SENSEUP=128
Star is 142 degrees from the moon.
Moon is 12% illuminated.
TNO apparent brightness V=21.9
TNO is 28.6 AU from the Sun
and 27.6 AU from the Earth.
The TNO is moving 23.3
km/sec on the sky relative to the star, or,
4.2 arcsec/hr.
The 1-sigma error in the time of the event is 165 seconds.
The 1-sigma cross-track error in the shadow position is
1174 km.
The TNO has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 8.6 sec chord
Diameter=81.5 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is 3:2E
Star training set for 469362, (2018/06/10 21:50UT) Object RA Dec mag sep mel Antares 16:30:32.5 -26:28:17 0.9 17.39 149 35Eta Oph 17:11:26.2 -15:44:47 2.6 3.49 142 PPM 232685 17:10:49.2 -10:32:45 5.6 1.85 143 PPM 232706 17:11:45.5 -12:43:23 7.0 0.59 142 PPM 232745 17:13:14.2 -12:35:47 9.4 0.31 142 469362 17:13:21.7 -12:17:08 16.2 142 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 469362, (2018/06/10 21:50UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 17.39 149 35Eta Oph 17:10:22.7 -15:43:29 2.6 3.49 142 PPM 232685 17:09:48.0 -10:31:26 5.6 1.85 143 PPM 232706 17:10:43.4 -12:42:05 7.0 0.59 142 PPM 232745 17:12:12.1 -12:34:31 9.4 0.31 142 469362 17:12:19.7 -12:15:52 16.2 142 Positions are for J2000
Event circumstances last updated at 2017/12/04 18:43:56 UT
Marc W. Buie, Southwest Research Institute