Event between (471136) 10EO65 and star UC4-289-083859 with event index number of 146193
Geocentric closest approach at 2017/04/12 21:04:42 UTC
J2000 position of star is 15:58:16.9 -32:18:32
Equinox of date position of star is 15:59:20.3 -32:21:21
Stellar brightness R=16.2
Star is 28 degrees from the moon.
Moon is 97% illuminated.
TNO apparent brightness V=21.2
TNO is 14.1 AU from the Sun
and 13.4 AU from the Earth.
The TNO is moving 13.1
km/sec on the sky relative to the star, or,
4.8 arcsec/hr.
The 1-sigma error in the time of the event is 79 seconds.
The 1-sigma cross-track error in the shadow position is
510 km.
The TNO has an absolute magnitude Hv=9.5
Diameter=75.9 km assuming a 5% albedo -- 5.8 sec chord
Diameter=31.0 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is CENTAURR
Star training set for 471136, (2017/04/12 21:05UT) Object RA Dec mag sep mel Antares 16:30:28.2 -26:28:08 0.9 8.97 30 Eta Lup 16:01:16.3 -38:26:40 2.8 6.10 33 PPM 294436 15:57:19.5 -31:50:06 6.5 0.68 27 PPM 294515 16:00:57.8 -32:42:32 8.4 0.49 28 PPM 294470 15:58:55.9 -32:31:13 9.3 0.19 28 471136 15:59:22.6 -32:21:27 16.2 28 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 471136, (2017/04/12 21:05UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:55 0.9 8.97 30 Eta Lup 16:00:07.3 -38:23:48 2.8 6.10 33 PPM 294436 15:56:14.1 -31:47:09 6.5 0.68 27 PPM 294515 15:59:51.8 -32:39:39 8.4 0.49 28 PPM 294470 15:57:50.1 -32:28:18 9.3 0.19 28 471136 15:58:16.9 -32:18:32 16.2 28 Positions are for J2000
Event circumstances last updated at 2016/09/01 18:11:58 UT
Marc W. Buie, Southwest Research Institute