Event between (468861) 13LU28 and star GA1380:04514509 with event index number of 257670
Geocentric closest approach at 2020/04/24 02:04:13 UTC
J2000 position of star is 14:21:38.3 +49:52:18
Equinox of date position of star is 14:22:18.1 +49:47:17
Stellar brightness G=16.6,
use SENSEUP=128
Star is 117 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=19.1
TNO is 12.1 AU from the Sun
and 11.6 AU from the Earth.
The TNO is moving 38.3
km/sec on the sky relative to the star, or,
16.4 arcsec/hr.
The 1-sigma error in the time of the event is 15 seconds.
The 1-sigma cross-track error in the shadow position is
1097 km.
The TNO has an absolute magnitude Hv=8.0
Diameter=151.4 km assuming a 5% albedo -- 4.0 sec chord
Diameter=61.8 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
Star training set for 468861, (2020/04/24 02:04UT) Object RA Dec mag sep mel Arcturus 14:16:35.5 +19:04:42 0.0 30.72 146 Alkaid 13:48:20.4 +49:12:45 1.9 5.55 116 24 Boo 14:29:20.3 +49:45:17 6.2 1.13 117 PPM 054109 14:24:49.1 +49:26:28 7.4 0.52 117 PPM 054071 14:21:24.7 +49:44:46 8.9 0.16 117 468861 14:22:22.1 +49:46:47 16.6 117 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 468861, (2020/04/24 02:04UT) Object RA Dec mag sep mel Arcturus 14:15:38.3 +19:10:20 0.0 30.72 146 Alkaid 13:47:32.2 +49:18:48 1.9 5.55 116 24 Boo 14:28:37.2 +49:50:41 6.2 1.13 117 PPM 054109 14:24:05.4 +49:31:57 7.4 0.52 117 PPM 054071 14:20:40.8 +49:50:19 8.9 0.16 117 468861 14:21:38.3 +49:52:18 16.6 117 Positions are for J2000
Event circumstances last updated at 2018/06/12 20:00:11 UT
Marc W. Buie, Southwest Research Institute