Event between (471318) 11JF31 and star GA0700:05890327 with event index number of 258558
Geocentric closest approach at 2020/05/17 13:14:37 UTC
J2000 position of star is 15:40:30.9 -19:17:38
Equinox of date position of star is 15:41:36.0 -19:21:12
Stellar brightness G=16.9,
use SENSEUP=128
Star is 122 degrees from the moon.
Moon is 23% illuminated.
TNO apparent brightness V=21.4
TNO is 42.5 AU from the Sun
and 41.5 AU from the Earth.
The TNO is moving 25.6
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 448 seconds.
The 1-sigma cross-track error in the shadow position is
5165 km.
The TNO has an absolute magnitude Hv=5.2
Diameter=549.6 km assuming a 5% albedo -- 21.5 sec chord
Diameter=224.4 km assuming a 30% albedo -- 8.8 sec chord
Dynamical classification is SCATEXTD
Star training set for 471318, (2020/05/17 13:15UT) Object RA Dec mag sep mel Antares 16:30:39.6 -26:28:32 0.9 13.32 109 7Del Sco 16:01:32.5 -22:40:41 2.3 5.70 117 41 Lib 15:40:05.2 -19:22:03 5.3 0.38 123 PPM 230612 15:43:05.8 -19:31:37 8.2 0.37 122 PPM 230578 15:41:56.0 -19:28:04 9.4 0.12 122 471318 15:41:41.4 -19:21:30 16.9 122 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 471318, (2020/05/17 13:15UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 13.32 109 7Del Sco 16:00:20.0 -22:37:18 2.3 5.70 117 41 Lib 15:38:54.7 -19:18:08 5.3 0.38 123 PPM 230612 15:41:55.2 -19:27:46 8.2 0.37 122 PPM 230578 15:40:45.4 -19:24:12 9.4 0.12 122 471318 15:40:30.9 -19:17:38 16.9 122 Positions are for J2000
Event circumstances last updated at 2018/10/26 21:07:39 UT
Marc W. Buie, Southwest Research Institute