Event between 15VW167 and star GA1060:00346443 with event index number of 1021123
Geocentric closest approach at 2018/12/31 00:07:48 UTC
J2000 position of star is 03:23:08.2 +17:14:16
Equinox of date position of star is 03:24:12.5 +17:18:15
Stellar brightness G=13.7,
use SENSEUP=64
Star is 156 degrees from the moon.
Moon is 33% illuminated.
TNO apparent brightness V=24.3
TNO is 37.8 AU from the Sun
and 37.1 AU from the Earth.
The TNO is moving 16.1
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 341 seconds.
The 1-sigma cross-track error in the shadow position is
3168 km.
The TNO has an absolute magnitude Hv=8.4
Diameter=127.1 km assuming a 5% albedo -- 7.9 sec chord
Diameter=51.9 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is CLASSICAL
Star training set for 15VW167, (2018/12/31 00:08UT) Object RA Dec mag sep mel Aldebaran 04:37:00.8 +16:32:46 0.8 17.42 140 Menkar 03:03:16.5 +04:09:47 2.5 14.11 163 63Tau2Ari 03:23:51.0 +20:48:31 6.2 3.51 155 PPM 119006 03:21:03.9 +17:34:08 8.2 0.80 157 PPM 119056 03:25:19.3 +17:36:54 9.8 0.41 156 PPM 119043 03:24:32.8 +17:13:33 10.2 0.11 156 15VW167 03:24:12.7 +17:18:16 13.7 156 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 15VW167, (2018/12/31 00:08UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 17.42 140 Menkar 03:02:16.8 +04:05:21 2.5 14.11 163 63Tau2Ari 03:22:45.2 +20:44:31 6.2 3.51 155 PPM 119006 03:19:59.3 +17:30:04 8.2 0.80 157 PPM 119056 03:24:14.6 +17:32:55 9.8 0.41 156 PPM 119043 03:23:28.3 +17:09:33 10.2 0.11 156 15VW167 03:23:08.2 +17:14:16 13.7 156 Positions are for J2000
Event circumstances last updated at 2018/12/01 22:12:11 UT
Marc W. Buie, Southwest Research Institute