Event between (469708) 05GE187 and star GA0800:05319733 with event index number of 153053
Geocentric closest approach at 2018/09/25 21:40:42 UTC
J2000 position of star is 16:38:00.4 -08:52:03
Equinox of date position of star is 16:39:00.7 -08:54:12
Stellar brightness G=15.1,
use SENSEUP=128
Star is 123 degrees from the moon.
Moon is 99% illuminated.
TNO apparent brightness V=22.0
TNO is 28.1 AU from the Sun
and 28.5 AU from the Earth.
The TNO is moving 18.9
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 121 seconds.
The 1-sigma cross-track error in the shadow position is
1407 km.
The TNO has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 11.1 sec chord
Diameter=85.3 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is 3:2E
Star training set for 469708, (2018/09/25 21:41UT) Object RA Dec mag sep mel Antares 16:30:33.5 -26:28:19 0.9 17.68 121 13Zet Oph 16:38:11.5 -10:36:13 2.6 1.71 123 PPM 199862 16:39:48.9 -08:39:16 6.4 0.32 123 PPM 199829 16:37:57.4 -08:55:25 8.2 0.27 123 PPM 199840 16:38:50.9 -08:46:02 9.1 0.14 123 469708 16:39:01.7 -08:54:14 15.1 123 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 469708, (2018/09/25 21:41UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 17.68 121 13Zet Oph 16:37:09.6 -10:34:01 2.6 1.71 123 PPM 199862 16:38:47.7 -08:37:07 6.4 0.32 123 PPM 199829 16:36:56.1 -08:53:12 8.2 0.27 123 PPM 199840 16:37:49.6 -08:43:51 9.1 0.14 123 469708 16:38:00.4 -08:52:03 15.1 123 Positions are for J2000
Event circumstances last updated at 2018/06/05 16:27:39 UT
Marc W. Buie, Southwest Research Institute