Event between 12UB178 and star UC4-514-006770 with event index number of 239590
Geocentric closest approach at 2018/11/10 21:08:22 UTC
J2000 position of star is 04:04:13.3 +12:37:38
Equinox of date position of star is 04:05:14.7 +12:40:36
Stellar brightness R=15.5,
use SENSEUP=128
Star is 155 degrees from the moon.
Moon is 11% illuminated.
TNO apparent brightness V=22.5
TNO is 47.0 AU from the Sun
and 46.0 AU from the Earth.
The TNO is moving 25.3
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 609 seconds.
The 1-sigma cross-track error in the shadow position is
4753 km.
The TNO has an absolute magnitude Hv=5.8
Diameter=424.6 km assuming a 5% albedo -- 16.8 sec chord
Diameter=173.4 km assuming a 30% albedo -- 6.9 sec chord
Dynamical classification is CLASSICAL
Star training set for 12UB178, (2018/11/10 21:08UT) Object RA Dec mag sep mel Aldebaran 04:37:00.3 +16:32:45 0.8 8.59 163 Menkar 03:03:16.1 +04:09:46 2.5 17.53 137 35Lam Tau 04:01:43.7 +12:32:32 3.5 0.88 154 PPM 119597 04:06:14.4 +13:20:49 8.3 0.71 155 PPM 119590 04:05:21.8 +12:33:29 8.7 0.12 155 12UB178 04:05:16.3 +12:40:41 15.5 155 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 12UB178, (2018/11/10 21:08UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 8.59 163 Menkar 03:02:16.8 +04:05:21 2.5 17.53 137 35Lam Tau 04:00:40.8 +12:29:25 3.5 0.88 154 PPM 119597 04:05:11.2 +13:17:49 8.3 0.71 155 PPM 119590 04:04:18.8 +12:30:27 8.7 0.12 155 12UB178 04:04:13.3 +12:37:38 15.5 155 Positions are for J2000
Event circumstances last updated at 2018/05/24 01:55:56 UT
Marc W. Buie, Southwest Research Institute