Event between 01QF331 and star UC4-480-001868 with event index number of 173993
Geocentric closest approach at 2017/11/19 18:00:03 UTC
J2000 position of star is 01:16:00.1 +05:58:34
Equinox of date position of star is 01:16:54.7 +06:04:05
Stellar brightness R=15.5,
use SENSEUP=128
Star is 128 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=23.1
TNO is 32.2 AU from the Sun
and 31.4 AU from the Earth.
The TNO is moving 17.9
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 378 seconds.
The 1-sigma cross-track error in the shadow position is
5085 km.
The TNO has an absolute magnitude Hv=7.9
Diameter=156.3 km assuming a 5% albedo -- 8.7 sec chord
Diameter=63.8 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is 5:3EE
Star training set for 01QF331, (2017/11/19 18:00UT) Object RA Dec mag sep mel 6Bet Ari 01:55:37.9 +20:53:41 2.6 17.54 140 80 Psc 01:09:17.6 +05:44:38 5.5 1.93 126 PPM 144454 01:18:31.5 +05:58:41 8.1 0.41 129 PPM 144434 01:17:21.1 +05:58:10 10.5 0.15 128 01QF331 01:16:55.9 +06:04:12 15.5 129 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 01QF331, (2017/11/19 18:00UT) Object RA Dec mag sep mel 6Bet Ari 01:54:38.5 +20:48:27 2.6 17.54 140 80 Psc 01:08:21.9 +05:38:56 5.5 1.93 126 PPM 144454 01:17:35.6 +05:53:03 8.1 0.41 129 PPM 144434 01:16:25.3 +05:52:32 10.5 0.15 128 01QF331 01:16:00.1 +05:58:34 15.5 128 Positions are for J2000
Event circumstances last updated at 2017/07/01 17:38:06 UT
Marc W. Buie, Southwest Research Institute