Event between (85627) 98HP151 and star UC4-334-087062 with event index number of 65893
Geocentric closest approach at 2017/05/15 23:37:30 UTC
J2000 position of star is 16:58:21.5 -23:12:04
Equinox of date position of star is 16:59:21.2 -23:13:31
Stellar brightness R=16.4
Star is 35 degrees from the moon.
Moon is 78% illuminated.
TNO apparent brightness V=23.6
TNO is 41.4 AU from the Sun
and 40.5 AU from the Earth.
The TNO is moving 22.6
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 580 seconds.
The 1-sigma cross-track error in the shadow position is
2330 km.
The TNO has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 8.8 sec chord
Diameter=81.5 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CLASSICAL
Star training set for 85627, (2017/05/15 23:38UT) Object RA Dec mag sep mel Antares 16:30:28.5 -26:28:09 0.9 7.32 42 23Tau Sco 16:36:58.0 -28:15:02 2.8 7.12 40 26 Oph 17:01:13.5 -25:00:51 5.8 1.83 35 PPM 266216 16:59:50.5 -24:00:44 8.5 0.79 35 PPM 266199 16:59:09.7 -23:03:16 9.4 0.18 35 85627 16:59:24.6 -23:13:36 16.4 35 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 85627, (2017/05/15 23:38UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:55 0.9 7.32 42 23Tau Sco 16:35:53.0 -28:12:58 2.8 7.12 40 26 Oph 17:00:09.6 -24:59:22 5.8 1.83 35 PPM 266216 16:58:47.1 -23:59:13 8.5 0.79 35 PPM 266199 16:58:06.8 -23:01:44 9.4 0.18 35 85627 16:58:21.5 -23:12:04 16.4 35 Positions are for J2000
Event circumstances last updated at 2016/06/09 19:24:17 UT
Marc W. Buie, Southwest Research Institute