Event between 01OQ108 and star UC4-365-070748 with event index number of 194766
Geocentric closest approach at 2018/01/21 01:13:26 UTC
J2000 position of star is 15:37:22.3 -17:06:17
Equinox of date position of star is 15:38:23.4 -17:09:46
Stellar brightness R=14.5,
use SENSEUP=128
Star is 109 degrees from the moon.
Moon is 14% illuminated.
TNO apparent brightness V=23.4
TNO is 45.9 AU from the Sun
and 46.3 AU from the Earth.
The TNO is moving 17.5
km/sec on the sky relative to the star, or,
1.9 arcsec/hr.
The 1-sigma error in the time of the event is 462 seconds.
The 1-sigma cross-track error in the shadow position is
4525 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 16.4 sec chord
Diameter=117.7 km assuming a 30% albedo -- 6.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 01OQ108, (2018/01/21 01:13UT) Object RA Dec mag sep mel Antares 16:30:31.0 -26:28:14 0.9 15.24 95 8Bet1Sco 16:06:29.4 -19:51:13 2.6 7.18 102 35Zet4Lib 15:33:56.6 -16:54:47 5.6 1.09 110 PPM 230471 15:37:37.4 -17:04:27 8.0 0.21 109 PPM 230483 15:38:14.6 -17:18:02 9.5 0.14 109 01OQ108 15:38:23.9 -17:09:47 14.5 108 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 01OQ108, (2018/01/21 01:13UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 15.24 95 8Bet1Sco 16:05:26.2 -19:48:20 2.6 7.18 102 35Zet4Lib 15:32:55.2 -16:51:11 5.6 1.09 110 PPM 230471 15:36:35.8 -17:00:56 8.0 0.21 109 PPM 230483 15:37:13.0 -17:14:31 9.5 0.14 109 01OQ108 15:37:22.3 -17:06:17 14.5 109 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:12:01 UT
Marc W. Buie, Southwest Research Institute