Event between (471210) 10VW11 and star UC4-417-005771 with event index number of 180229
Geocentric closest approach at 2019/02/20 13:18:18 UTC
J2000 position of star is 04:21:38.9 -06:40:31
Equinox of date position of star is 04:22:29.7 -06:38:08
Stellar brightness R=16.5,
use SENSEUP=128
Star is 103 degrees from the moon.
Moon is 99% illuminated.
TNO apparent brightness V=21.1
TNO is 36.6 AU from the Sun
and 36.6 AU from the Earth.
The TNO is moving 14.6
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 150 seconds.
The 1-sigma cross-track error in the shadow position is
4142 km.
The TNO has an absolute magnitude Hv=5.3
Diameter=524.8 km assuming a 5% albedo -- 36.1 sec chord
Diameter=214.3 km assuming a 30% albedo -- 14.7 sec chord
Dynamical classification is SCATNEAR
Star training set for 471210, (2019/02/20 13:18UT) Object RA Dec mag sep mel Rigel 05:15:27.5 -08:10:51 0.1 13.20 90 67Bet Eri 05:08:47.5 -05:03:47 2.8 11.60 91 PPM 186813 04:21:35.1 -06:12:06 6.5 0.50 103 PPM 186830 04:22:33.8 -06:14:24 7.1 0.39 102 PPM 186837 04:22:44.9 -06:27:44 8.9 0.17 102 471210 04:22:35.0 -06:37:52 16.5 102 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 471210, (2019/02/20 13:18UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 13.20 90 67Bet Eri 05:07:50.9 -05:05:13 2.8 11.60 91 PPM 186813 04:20:38.7 -06:14:47 6.5 0.50 103 PPM 186830 04:21:37.5 -06:17:03 7.1 0.39 102 PPM 186837 04:21:48.7 -06:30:22 8.9 0.17 102 471210 04:21:38.9 -06:40:31 16.5 103 Positions are for J2000
Event circumstances last updated at 2017/04/24 16:39:08 UT
Marc W. Buie, Southwest Research Institute