Event between 10TH and star GA0920:00678218 with event index number of 169923
Geocentric closest approach at 2018/12/31 22:01:59 UTC
J2000 position of star is 05:21:47.3 +03:16:00
Equinox of date position of star is 05:22:46.5 +03:17:02
Stellar brightness G=13.6,
use SENSEUP=64
Star is 140 degrees from the moon.
Moon is 24% illuminated.
TNO apparent brightness V=21.9
TNO is 18.0 AU from the Sun
and 17.1 AU from the Earth.
The TNO is moving 22.8
km/sec on the sky relative to the star, or,
6.6 arcsec/hr.
The 1-sigma error in the time of the event is 37 seconds.
The 1-sigma cross-track error in the shadow position is
683 km.
The TNO has an absolute magnitude Hv=9.3
Diameter=81.7 km assuming a 5% albedo -- 3.6 sec chord
Diameter=33.3 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
Star training set for 10TH, (2018/12/31 22:02UT) Object RA Dec mag sep mel Betelgeuse 05:56:12.1 +07:24:33 0.4 9.28 132 Bellatrix 05:26:09.1 +06:21:55 1.6 3.19 139 PPM 148809 05:22:19.5 +04:01:46 6.3 0.75 140 PPM 148847 05:23:31.3 +03:00:01 8.1 0.34 139 PPM 148836 05:23:11.2 +03:14:18 9.3 0.11 140 10TH 05:22:47.1 +03:17:02 13.6 139 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 10TH, (2018/12/31 22:02UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 9.28 132 Bellatrix 05:25:07.8 +06:20:58 1.6 3.19 139 PPM 148809 05:21:19.3 +04:00:43 6.3 0.75 140 PPM 148847 05:22:31.6 +02:59:00 8.1 0.34 139 PPM 148836 05:22:11.3 +03:13:16 9.3 0.11 140 10TH 05:21:47.3 +03:16:00 13.6 140 Positions are for J2000
Event circumstances last updated at 2018/10/23 20:48:31 UT
Marc W. Buie, Southwest Research Institute