Event between 98HQ151 and star UC4-379-104865 with event index number of 101765
Geocentric closest approach at 2017/08/13 01:56:28 UTC
J2000 position of star is 18:19:51.4 -14:19:02
Equinox of date position of star is 18:20:50.7 -14:18:31
Stellar brightness R=15.0,
use SENSEUP=128
Star is 111 degrees from the moon.
Moon is 72% illuminated.
TNO apparent brightness V=23.9
TNO is 31.9 AU from the Sun
and 31.2 AU from the Earth.
The TNO is moving 15.0
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 637 seconds.
The 1-sigma cross-track error in the shadow position is
3038 km.
The TNO has an absolute magnitude Hv=8.8
Diameter=106.2 km assuming a 5% albedo -- 7.1 sec chord
Diameter=43.3 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is 3:2E
Star training set for 98HQ151, (2017/08/13 01:56UT) Object RA Dec mag sep mel Antares 16:30:29.4 -26:28:11 0.9 28.49 134 Nunki 18:56:21.4 -26:16:24 2.0 14.56 102 PPM 234386 18:21:09.7 -15:49:23 5.2 1.52 111 PPM 234348 18:19:58.7 -13:58:58 8.3 0.39 111 PPM 234325 18:19:24.7 -14:10:02 9.2 0.38 111 98HQ151 18:20:51.5 -14:18:31 15.0 110 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 98HQ151, (2017/08/13 01:56UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 28.49 134 Nunki 18:55:15.9 -26:17:49 2.0 14.56 102 PPM 234386 18:20:08.9 -15:49:55 5.2 1.52 111 PPM 234348 18:18:58.7 -13:59:28 8.3 0.39 111 PPM 234325 18:18:24.6 -14:10:31 9.2 0.38 111 98HQ151 18:19:51.4 -14:19:02 15.0 111 Positions are for J2000
Event circumstances last updated at 2017/05/16 18:31:22 UT
Marc W. Buie, Southwest Research Institute