Event between (470593) 08LP17 and star GA0660:08867517 with event index number of 256917
Geocentric closest approach at 2020/04/29 17:59:06 UTC
J2000 position of star is 17:00:31.3 -23:27:11
Equinox of date position of star is 17:01:42.0 -23:28:50
Stellar brightness G=14.2,
use SENSEUP=64
Star is 140 degrees from the moon.
Moon is 38% illuminated.
TNO apparent brightness V=21.1
TNO is 30.5 AU from the Sun
and 29.7 AU from the Earth.
The TNO is moving 16.8
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 271 seconds.
The 1-sigma cross-track error in the shadow position is
2053 km.
The TNO has an absolute magnitude Hv=6.2
Diameter=346.7 km assuming a 5% albedo -- 20.6 sec chord
Diameter=141.6 km assuming a 30% albedo -- 8.4 sec chord
Dynamical classification is CENTAURR
Star training set for 470593, (2020/04/29 17:59UT) Object RA Dec mag sep mel Antares 16:30:39.4 -26:28:31 0.9 7.65 134 23Tau Sco 16:37:09.1 -28:15:23 2.8 7.31 135 26 Oph 17:01:24.4 -25:01:06 5.8 1.54 140 PPM 266304 17:03:22.6 -23:18:59 8.4 0.41 141 PPM 266274 17:02:20.7 -23:30:39 9.4 0.14 140 470593 17:01:45.2 -23:28:55 14.2 141 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, (2020/04/29 17:59UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 7.65 134 23Tau Sco 16:35:53.0 -28:12:58 2.8 7.31 135 26 Oph 17:00:09.6 -24:59:22 5.8 1.54 140 PPM 266304 17:02:08.7 -23:17:18 8.4 0.41 141 PPM 266274 17:01:06.8 -23:28:56 9.4 0.14 140 470593 17:00:31.3 -23:27:11 14.2 140 Positions are for J2000
Event circumstances last updated at 2019/06/07 23:32:10 UT
Marc W. Buie, Southwest Research Institute