Event between (523800) 17KZ31 and star GA0800:04118695 with event index number of 352872
Geocentric closest approach at 2019/02/09 14:17:29 UTC
J2000 position of star is 11:34:49.4 -08:10:11
Equinox of date position of star is 11:35:47.7 -08:16:31
Stellar brightness G=12.6,
use SENSEUP=16
Star is 159 degrees from the moon.
Moon is 19% illuminated.
TNO apparent brightness V=21.0
TNO is 11.6 AU from the Sun
and 10.8 AU from the Earth.
The TNO is moving 35.0
km/sec on the sky relative to the star, or,
16.1 arcsec/hr.
The 1-sigma error in the time of the event is 23 seconds.
The 1-sigma cross-track error in the shadow position is
714 km.
The TNO has an absolute magnitude Hv=10.2
Diameter=55.0 km assuming a 5% albedo -- 1.6 sec chord
Diameter=22.4 km assuming a 30% albedo -- 0.6 sec chord
Dynamical classification is CENTAURR
Star training set for 523800, (2019/02/09 14:17UT) Object RA Dec mag sep mel Spica 13:26:12.1 -11:15:38 1.0 27.35 166 4Gam Crv 12:16:47.5 -17:38:53 2.6 13.69 160 PPM 194572 11:33:45.9 -07:56:00 5.8 0.61 159 PPM 194570 11:33:42.9 -09:03:13 8.4 0.93 158 PPM 194594 11:35:10.6 -08:06:57 9.5 0.22 159 523800 11:35:47.8 -08:16:32 12.6 159 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 523800, (2019/02/09 14:17UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 27.35 166 4Gam Crv 12:15:48.2 -17:32:31 2.6 13.69 160 PPM 194572 11:32:47.5 -07:49:39 5.8 0.61 159 PPM 194570 11:32:44.7 -08:56:52 8.4 0.93 158 PPM 194594 11:34:12.3 -08:00:36 9.5 0.22 159 523800 11:34:49.4 -08:10:11 12.6 159 Positions are for J2000
Event circumstances last updated at 2019/01/31 18:04:01 UT
Marc W. Buie, Southwest Research Institute