Event between 05JA175 and star UC4-367-067960 with event index number of 56061
Geocentric closest approach at 2017/04/29 01:16:17 UTC
J2000 position of star is 15:23:41.5 -16:37:02
Equinox of date position of star is 15:24:36.4 -16:40:26
Stellar brightness R=15.6
Star is 158 degrees from the moon.
Moon is 10% illuminated.
TNO apparent brightness V=22.5
TNO is 46.9 AU from the Sun
and 46.0 AU from the Earth.
The TNO is moving 24.6
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 520 seconds.
The 1-sigma cross-track error in the shadow position is
3814 km.
The TNO has an absolute magnitude Hv=5.8
Diameter=420.7 km assuming a 5% albedo -- 17.1 sec chord
Diameter=171.8 km assuming a 30% albedo -- 7.0 sec chord
Dynamical classification is SCATEXTD
Star training set for 05JA175, (2017/04/29 01:16UT) Object RA Dec mag sep mel Antares 16:30:28.3 -26:28:08 0.9 18.13 169 27Bet Lib 15:17:56.5 -09:26:45 2.6 7.41 154 32Zet1Lib 15:29:14.2 -16:46:33 5.6 1.10 159 PPM 230166 15:24:29.5 -16:37:30 7.6 0.07 158 05JA175 15:24:40.2 -16:40:40 15.6 158 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.
Event circumstances last updated at 2016/03/14 18:00:17 UT
Marc W. Buie, Southwest Research Institute