Event between 13FA28 and star UC4-390-059385 with event index number of 114144
Geocentric closest approach at 2018/02/25 06:16:50 UTC
J2000 position of star is 13:40:25.2 -12:05:17
Equinox of date position of star is 13:41:22.5 -12:10:41
Stellar brightness R=15.8,
use SENSEUP=128
Star is 116 degrees from the moon.
Moon is 71% illuminated.
TNO apparent brightness V=22.5
TNO is 44.9 AU from the Sun
and 44.3 AU from the Earth.
The TNO is moving 14.1
km/sec on the sky relative to the star, or,
1.6 arcsec/hr.
The 1-sigma error in the time of the event is 550 seconds.
The 1-sigma cross-track error in the shadow position is
5475 km.
The TNO has an absolute magnitude Hv=5.9
Diameter=390.9 km assuming a 5% albedo -- 27.7 sec chord
Diameter=159.6 km assuming a 30% albedo -- 11.3 sec chord
Dynamical classification is CLASSICAL
Star training set for 13FA28, (2018/02/25 06:17UT) Object RA Dec mag sep mel Spica 13:26:09.1 -11:15:20 1.0 3.84 112 86 Vir 13:46:54.5 -12:31:00 5.1 1.39 117 PPM 227711 13:43:33.7 -12:10:41 7.8 0.53 116 PPM 227624 13:40:06.6 -12:14:58 9.5 0.32 115 13FA28 13:41:23.2 -12:10:46 15.8 116 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 13FA28, (2018/02/25 06:17UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 3.84 112 86 Vir 13:45:56.3 -12:25:35 5.1 1.39 117 PPM 227711 13:42:35.6 -12:05:13 7.8 0.53 116 PPM 227624 13:39:08.5 -12:09:28 9.5 0.32 115 13FA28 13:40:25.2 -12:05:17 15.8 116 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:17:58 UT
Marc W. Buie, Southwest Research Institute