Event between (500884) 13JK65 and star UC4-345-094153 with event index number of 255810
Geocentric closest approach at 2020/04/18 12:44:28 UTC
J2000 position of star is 17:13:58.6 -21:00:53
Equinox of date position of star is 17:15:04.4 -21:02:06
Stellar brightness R=16.2,
use SENSEUP=128
Star is 80 degrees from the moon.
Moon is 18% illuminated.
TNO apparent brightness V=24.4
TNO is 29.4 AU from the Sun
and 28.8 AU from the Earth.
The TNO is moving 12.7
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 826 seconds.
The 1-sigma cross-track error in the shadow position is
4979 km.
The TNO has an absolute magnitude Hv=9.6
Diameter=72.4 km assuming a 5% albedo -- 5.7 sec chord
Diameter=29.6 km assuming a 30% albedo -- 2.3 sec chord
Dynamical classification is 3:2E
Star training set for 500884, (2020/04/18 12:44UT) Object RA Dec mag sep mel Antares 16:30:39.3 -26:28:31 0.9 11.54 89 35Eta Oph 17:11:32.6 -15:44:55 2.6 5.36 82 40Xi Oph 17:22:13.4 -21:07:58 3.9 1.64 78 PPM 266604 17:16:05.9 -20:59:29 7.7 0.22 80 PPM 266577 17:14:37.0 -21:11:24 9.3 0.20 80 500884 17:15:11.2 -21:02:13 16.2 80 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 500884, (2020/04/18 12:44UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 11.54 89 35Eta Oph 17:10:22.7 -15:43:29 2.6 5.36 82 40Xi Oph 17:21:00.7 -21:06:51 3.9 1.64 78 PPM 266604 17:14:53.3 -20:58:10 7.7 0.22 80 PPM 266577 17:13:24.3 -21:10:03 9.3 0.20 80 500884 17:13:58.6 -21:00:53 16.2 80 Positions are for J2000
Event circumstances last updated at 2018/05/24 03:16:44 UT
Marc W. Buie, Southwest Research Institute