Event between (10370) Hylonome and star UC4-356-146189 with event index number of 73772
Geocentric closest approach at 2017/05/26 21:35:43 UTC
J2000 position of star is 18:29:57.5 -18:59:29
Equinox of date position of star is 18:30:57.3 -18:58:44
Stellar brightness R=16.4
Star is 164 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=22.4
TNO is 23.7 AU from the Sun
and 22.8 AU from the Earth.
The TNO is moving 18.9
km/sec on the sky relative to the star, or,
4.1 arcsec/hr.
The 1-sigma error in the time of the event is 945 seconds.
The 1-sigma cross-track error in the shadow position is
1918 km.
The TNO has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 6.1 sec chord
Diameter=46.9 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is CENTAURR
Star training set for 10370, (2017/05/26 21:36UT) Object RA Dec mag sep mel Antares 16:30:28.6 -26:28:09 0.9 28.70 165 Nunki 18:56:20.6 -26:16:25 2.0 9.35 157 PPM 234623 18:31:13.2 -18:42:59 5.5 0.27 164 PPM 234645 18:32:20.2 -18:53:47 7.1 0.33 164 PPM 234598 18:30:06.8 -19:02:51 9.2 0.22 164 10370 18:30:58.9 -18:58:43 16.4 164 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 10370, (2017/05/26 21:36UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:55 0.9 28.70 165 Nunki 18:55:15.9 -26:17:49 2.0 9.35 157 PPM 234623 18:30:11.9 -18:43:45 5.5 0.27 164 PPM 234645 18:31:18.8 -18:54:36 7.1 0.33 164 PPM 234598 18:29:05.3 -19:03:36 9.2 0.22 164 10370 18:29:57.5 -18:59:29 16.4 164 Positions are for J2000
Event circumstances last updated at 2016/12/09 18:48:34 UT
Marc W. Buie, Southwest Research Institute