Event between (471155) 10GF65 and star UC4-296-085387 with event index number of 145694
Geocentric closest approach at 2017/09/15 17:21:10 UTC
J2000 position of star is 15:42:07.8 -30:48:16
Equinox of date position of star is 15:43:12.7 -30:51:33
Stellar brightness R=15.1,
use SENSEUP=128
Star is 124 degrees from the moon.
Moon is 23% illuminated.
TNO apparent brightness V=21.1
TNO is 23.6 AU from the Sun
and 24.0 AU from the Earth.
The TNO is moving 19.0
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 212 seconds.
The 1-sigma cross-track error in the shadow position is
1678 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 12.0 sec chord
Diameter=93.5 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is CENTAURR
Star training set for 471155, (2017/09/15 17:21UT) Object RA Dec mag sep mel Antares 16:30:29.7 -26:28:11 0.9 11.25 134 Eta Lup 16:01:18.1 -38:26:44 2.8 8.44 127 PPM 294116 15:41:21.7 -31:16:13 6.4 0.57 123 PPM 294183 15:44:32.4 -30:35:25 7.9 0.39 124 PPM 294147 15:43:05.5 -30:46:48 9.4 0.09 124 471155 15:43:13.9 -30:51:36 15.1 124 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 471155, (2017/09/15 17:21UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 11.25 134 Eta Lup 16:00:07.3 -38:23:48 2.8 8.44 127 PPM 294116 15:40:15.5 -31:12:50 6.4 0.57 123 PPM 294183 15:43:26.3 -30:32:06 7.9 0.39 124 PPM 294147 15:41:59.4 -30:43:27 9.4 0.09 124 471155 15:42:07.8 -30:48:16 15.1 124 Positions are for J2000
Event circumstances last updated at 2017/05/16 18:32:57 UT
Marc W. Buie, Southwest Research Institute