Event between (469442) 02GG166 and star GA0640:07443502 with event index number of 310334
Geocentric closest approach at 2020/05/20 15:31:43 UTC
J2000 position of star is 16:04:55.2 -25:05:42
Equinox of date position of star is 16:06:06.9 -25:08:51
Stellar brightness G=16.8,
use SENSEUP=128
Star is 151 degrees from the moon.
Moon is 4% illuminated.
TNO apparent brightness V=20.3
TNO is 17.9 AU from the Sun
and 16.9 AU from the Earth.
The TNO is moving 21.5
km/sec on the sky relative to the star, or,
6.3 arcsec/hr.
The 1-sigma error in the time of the event is 149 seconds.
The 1-sigma cross-track error in the shadow position is
1323 km.
The TNO has an absolute magnitude Hv=7.9
Diameter=158.5 km assuming a 5% albedo -- 7.4 sec chord
Diameter=64.7 km assuming a 30% albedo -- 3.0 sec chord
Dynamical classification is CENTAURR
Star training set for 469442, (2020/05/20 15:32UT) Object RA Dec mag sep mel Antares 16:30:39.6 -26:28:32 0.9 5.67 146 7Del Sco 16:01:32.5 -22:40:41 2.3 2.69 153 PPM 265065 16:05:08.4 -24:46:52 6.0 0.43 152 PPM 265118 16:07:39.6 -24:59:25 8.5 0.38 151 PPM 265077 16:05:52.3 -24:59:33 9.4 0.17 151 469442 16:06:09.1 -25:08:57 16.8 151 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 469442, (2020/05/20 15:32UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 5.67 146 7Del Sco 16:00:20.0 -22:37:18 2.3 2.69 153 PPM 265065 16:03:54.7 -24:43:34 6.0 0.43 152 PPM 265118 16:06:25.8 -24:56:12 8.5 0.38 151 PPM 265077 16:04:38.5 -24:56:16 9.4 0.17 151 469442 16:04:55.2 -25:05:42 16.8 151 Positions are for J2000
Event circumstances last updated at 2019/10/15 22:21:26 UT
Marc W. Buie, Southwest Research Institute