Event between (470593) 08LP17 and star UC4-344-082147 with event index number of 146736
Geocentric closest approach at 2018/05/10 18:21:56 UTC
J2000 position of star is 16:36:32.4 -21:23:33
Equinox of date position of star is 16:37:36.2 -21:25:41
Stellar brightness R=14.6,
use SENSEUP=128
Star is 100 degrees from the moon.
Moon is 25% illuminated.
TNO apparent brightness V=21.0
TNO is 30.2 AU from the Sun
and 29.2 AU from the Earth.
The TNO is moving 20.7
km/sec on the sky relative to the star, or,
3.5 arcsec/hr.
The 1-sigma error in the time of the event is 108 seconds.
The 1-sigma cross-track error in the shadow position is
1407 km.
The TNO has an absolute magnitude Hv=6.2
Diameter=346.7 km assuming a 5% albedo -- 16.7 sec chord
Diameter=141.6 km assuming a 30% albedo -- 6.8 sec chord
Dynamical classification is CENTAURR
Star training set for 470593, (2018/05/10 18:22UT) Object RA Dec mag sep mel Antares 16:30:32.1 -26:28:16 0.9 5.30 100 23Tau Sco 16:37:01.7 -28:15:09 2.8 6.83 98 PPM 232040 16:42:58.6 -19:57:29 5.8 1.93 99 PPM 265647 16:33:31.3 -20:47:24 8.3 1.15 101 PPM 265710 16:37:21.8 -21:08:19 9.5 0.30 100 470593 16:37:37.8 -21:25:44 14.6 99 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 470593, (2018/05/10 18:22UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 5.30 100 23Tau Sco 16:35:53.0 -28:12:58 2.8 6.83 98 PPM 232040 16:41:53.7 -19:55:27 5.8 1.93 99 PPM 265647 16:32:26.2 -20:45:08 8.3 1.15 101 PPM 265710 16:36:16.5 -21:06:08 9.5 0.30 100 470593 16:36:32.4 -21:23:33 14.6 100 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:31:10 UT
Marc W. Buie, Southwest Research Institute