Event between (10370) Hylonome and star GA0700:31409396 with event index number of 1001857
Geocentric closest approach at 2020/11/04 12:36:35 UTC
J2000 position of star is 18:59:28.6 -18:50:36
Equinox of date position of star is 19:00:40.6 -18:48:50
Stellar brightness G=17.0,
use SENSEUP=128
Star is 161 degrees from the moon.
Moon is 87% 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 20.5
km/sec on the sky relative to the star, or,
4.0 arcsec/hr.
The 1-sigma error in the time of the event is 1554 seconds.
The 1-sigma cross-track error in the shadow position is
3907 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, (2020/11/04 12:37UT) Object RA Dec mag sep mel Antares 16:30:41.3 -26:28:35 0.9 35.32 164 Nunki 18:56:33.4 -26:16:08 2.0 7.52 163 PPM 235314 19:00:37.4 -19:14:58 6.5 0.44 161 PPM 235316 19:00:39.9 -18:32:11 6.6 0.28 161 10370 19:00:41.9 -18:48:48 17.0 160 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, (2020/11/04 12:37UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 35.32 164 Nunki 18:55:15.9 -26:17:49 2.0 7.52 163 PPM 235314 18:59:23.9 -19:16:46 6.5 0.44 161 PPM 235316 18:59:26.8 -18:34:00 6.6 0.28 161 10370 18:59:28.6 -18:50:36 17.0 161 Positions are for J2000
Event circumstances last updated at 2020/06/21 22:31:57 UT
Marc W. Buie, Southwest Research Institute