Event between (119473) 01UO18 and star UC4-553-006927 with event index number of 93906
Geocentric closest approach at 2017/12/08 23:14:10 UTC
J2000 position of star is 03:31:38.7 +20:24:37
Equinox of date position of star is 03:32:38.9 +20:28:05
Stellar brightness R=15.1,
use SENSEUP=128
Star is 94 degrees from the moon.
Moon is 65% illuminated.
TNO apparent brightness V=22.4
TNO is 29.0 AU from the Sun
and 28.1 AU from the Earth.
The TNO is moving 21.9
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 443 seconds.
The 1-sigma cross-track error in the shadow position is
4341 km.
The TNO has an absolute magnitude Hv=7.8
Diameter=166.0 km assuming a 5% albedo -- 7.6 sec chord
Diameter=67.8 km assuming a 30% albedo -- 3.1 sec chord
Dynamical classification is 3:2E
Star training set for 119473, (2017/12/08 23:14UT) Object RA Dec mag sep mel Aldebaran 04:36:57.1 +16:32:38 0.8 15.73 80 44Zet Per 03:55:15.8 +31:56:08 2.8 12.53 87 65 Ari 03:25:28.3 +20:51:57 5.9 1.73 96 PPM 092559 03:31:32.8 +20:09:48 8.4 0.41 95 PPM 092591 03:33:29.4 +20:14:07 9.0 0.30 94 119473 03:32:41.0 +20:28:13 15.1 94 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 119473, (2017/12/08 23:14UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 15.73 80 44Zet Per 03:54:07.9 +31:53:01 2.8 12.53 87 65 Ari 03:24:26.1 +20:48:12 5.9 1.73 96 PPM 092559 03:30:30.6 +20:06:11 8.4 0.41 95 PPM 092591 03:32:27.1 +20:10:32 9.0 0.30 94 119473 03:31:38.7 +20:24:37 15.1 94 Positions are for J2000
Event circumstances last updated at 2017/04/24 16:15:01 UT
Marc W. Buie, Southwest Research Institute