Event between 15FG345 and star UC4-481-054851 with event index number of 110824
Geocentric closest approach at 2018/02/12 04:33:26 UTC
J2000 position of star is 14:24:14.4 +06:05:05
Equinox of date position of star is 14:25:04.3 +06:00:35
Stellar brightness R=15.3
Star is 71 degrees from the moon.
Moon is 12% illuminated.
TNO apparent brightness V=21.1
TNO is 40.4 AU from the Sun
and 40.0 AU from the Earth.
The TNO is moving 9.6
km/sec on the sky relative to the star, or,
1.2 arcsec/hr.
The 1-sigma error in the time of the event is 392 seconds.
The 1-sigma cross-track error in the shadow position is
3737 km.
The TNO has an absolute magnitude Hv=4.9
Diameter=631.0 km assuming a 5% albedo -- 55.2 sec chord
Diameter=257.6 km assuming a 30% albedo -- 22.5 sec chord
Dynamical classification is SCATEXTD
Star training set for 15FG345, (2018/02/12 04:33UT) Object RA Dec mag sep mel Arcturus 14:16:29.4 +19:05:22 0.0 13.25 79 Unukalhai 15:45:09.7 +06:22:11 2.6 19.89 54 PPM 160711 14:31:39.9 +04:41:33 6.0 2.09 69 PPM 160593 14:24:54.9 +05:44:30 8.0 0.27 71 PPM 160613 14:26:04.5 +06:02:21 10.8 0.23 71 15FG345 14:25:08.6 +06:00:12 15.3 71 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 15FG345, (2018/02/12 04:33UT) Object RA Dec mag sep mel Arcturus 14:15:38.4 +19:10:23 0.0 13.25 79 Unukalhai 15:44:16.2 +06:25:33 2.6 19.89 54 PPM 160711 14:30:45.4 +04:46:20 6.0 2.09 69 PPM 160593 14:24:00.7 +05:49:23 8.0 0.27 71 PPM 160613 14:25:10.4 +06:07:14 10.8 0.23 71 15FG345 14:24:14.4 +06:05:05 15.3 71 Positions are for J2000
Event circumstances last updated at 2016/09/05 18:11:33 UT
Marc W. Buie, Southwest Research Institute