Event between 01OQ108 and star UC4-366-069454 with event index number of 194772
Geocentric closest approach at 2018/05/20 23:50:00 UTC
J2000 position of star is 15:34:04.8 -16:50:45
Equinox of date position of star is 15:35:07.3 -16:54:24
Stellar brightness R=16.0,
use SENSEUP=128
Star is 101 degrees from the moon.
Moon is 37% illuminated.
TNO apparent brightness V=23.2
TNO is 45.9 AU from the Sun
and 44.9 AU from the Earth.
The TNO is moving 25.0
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 262 seconds.
The 1-sigma cross-track error in the shadow position is
3674 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 11.5 sec chord
Diameter=117.7 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 01OQ108, (2018/05/20 23:50UT) Object RA Dec mag sep mel Antares 16:30:32.2 -26:28:17 0.9 16.02 115 8Bet1Sco 16:06:30.5 -19:51:16 2.6 8.01 109 35Zet4Lib 15:33:57.7 -16:54:51 5.6 0.28 100 PPM 230412 15:34:59.3 -17:03:53 8.2 0.16 101 01OQ108 15:35:07.3 -16:54:24 16.0 101 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, (2018/05/20 23:50UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 16.02 115 8Bet1Sco 16:05:26.2 -19:48:20 2.6 8.01 109 35Zet4Lib 15:32:55.2 -16:51:11 5.6 0.28 100 PPM 230412 15:33:56.7 -17:00:14 8.2 0.16 101 01OQ108 15:34:04.8 -16:50:45 16.0 101 Positions are for J2000
Event circumstances last updated at 2018/05/24 01:27:00 UT
Marc W. Buie, Southwest Research Institute