Event between (85627) 98HP151 and star UC4-335-088267 with event index number of 86002
Geocentric closest approach at 2017/10/05 11:44:48 UTC
J2000 position of star is 16:53:15.2 -23:04:03
Equinox of date position of star is 16:54:18.1 -23:05:42
Stellar brightness R=16.5,
use SENSEUP=128
Star is 114 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=23.7
TNO is 41.4 AU from the Sun
and 41.9 AU from the Earth.
The TNO is moving 19.0
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 835 seconds.
The 1-sigma cross-track error in the shadow position is
2810 km.
The TNO has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 10.5 sec chord
Diameter=81.5 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is CLASSICAL
Star training set for 85627, (2017/10/05 11:45UT) Object RA Dec mag sep mel Antares 16:30:29.9 -26:28:12 0.9 6.37 118 23Tau Sco 16:36:59.5 -28:15:05 2.8 6.47 117 26 Oph 17:01:14.9 -25:00:53 5.8 2.49 112 PPM 266128 16:55:55.4 -23:32:24 6.9 0.58 113 PPM 266090 16:54:33.3 -23:11:32 9.9 0.11 114 85627 16:54:19.6 -23:05:44 16.5 114 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, (2017/10/05 11:45UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 6.37 118 23Tau Sco 16:35:53.0 -28:12:58 2.8 6.47 117 26 Oph 17:00:09.6 -24:59:22 5.8 2.49 112 PPM 266128 16:54:50.8 -23:30:45 6.9 0.58 113 PPM 266090 16:53:29.0 -23:09:51 9.9 0.11 114 85627 16:53:15.2 -23:04:03 16.5 114 Positions are for J2000
Event circumstances last updated at 2017/05/16 18:33:25 UT
Marc W. Buie, Southwest Research Institute