Event between (10370) Hylonome and star GA0700:31424082 with event index number of 1001858
Geocentric closest approach at 2020/11/05 17:55:48 UTC
J2000 position of star is 18:59:37.1 -18:50:35
Equinox of date position of star is 19:00:49.1 -18:48:48
Stellar brightness G=14.1,
use SENSEUP=64
Star is 173 degrees from the moon.
Moon is 78% illuminated.
TNO apparent brightness V=24.2
TNO is 24.8 AU from the Sun
and 25.2 AU from the Earth.
The TNO is moving 21.1
km/sec on the sky relative to the star, or,
4.1 arcsec/hr.
The 1-sigma error in the time of the event is 1522 seconds.
The 1-sigma cross-track error in the shadow position is
2757 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=114.8 km assuming a 5% albedo -- 2.9 sec chord
Diameter=46.9 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is CENTAURR
Star training set for 10370, (2020/11/05 17:56UT) Object RA Dec mag sep mel Antares 16:30:41.3 -26:28:35 0.9 35.35 149 Nunki 18:56:33.4 -26:16:08 2.0 7.52 177 PPM 235314 19:00:37.4 -19:14:58 6.5 0.44 174 PPM 235316 19:00:39.9 -18:32:11 6.6 0.28 173 10370 19:00:50.4 -18:48:46 14.1 173 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 10370, (2020/11/05 17:56UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 35.35 149 Nunki 18:55:15.9 -26:17:49 2.0 7.52 177 PPM 235314 18:59:23.9 -19:16:46 6.5 0.44 174 PPM 235316 18:59:26.8 -18:34:00 6.6 0.28 173 10370 18:59:37.1 -18:50:35 14.1 173 Positions are for J2000
Event circumstances last updated at 2020/06/21 22:34:21 UT
Marc W. Buie, Southwest Research Institute