Event between (10370) Hylonome and star GA0700:32333072 with event index number of 256927
Geocentric closest approach at 2020/04/27 07:57:41 UTC
J2000 position of star is 19:10:47.4 -18:22:39
Equinox of date position of star is 19:11:55.4 -18:20:40
Stellar brightness G=15.9,
use SENSEUP=128
Star is 158 degrees from the moon.
Moon is 16% illuminated.
TNO apparent brightness V=22.7
TNO is 24.6 AU from the Sun
and 24.2 AU from the Earth.
The TNO is moving 4.5
km/sec on the sky relative to the star, or,
0.9 arcsec/hr.
The 1-sigma error in the time of the event is 7553 seconds.
The 1-sigma cross-track error in the shadow position is
4732 km.
The TNO has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 25.6 sec chord
Diameter=46.9 km assuming a 30% albedo -- 10.5 sec chord
Dynamical classification is CENTAURR
Star training set for 10370, (2020/04/27 07:58UT) Object RA Dec mag sep mel Antares 16:30:39.4 -26:28:31 0.9 38.00 164 Nunki 18:56:31.4 -26:16:11 2.0 8.69 162 PPM 235542 19:09:28.3 -19:15:24 5.9 1.09 159 PPM 235554 19:10:08.3 -18:38:57 7.5 0.53 158 PPM 235616 19:12:27.7 -18:14:23 9.2 0.15 158 10370 19:11:58.5 -18:20:34 15.9 158 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, (2020/04/27 07:58UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 38.00 164 Nunki 18:55:15.9 -26:17:49 2.0 8.69 162 PPM 235542 19:08:16.7 -19:17:25 5.9 1.09 159 PPM 235554 19:08:57.1 -18:40:58 7.5 0.53 158 PPM 235616 19:11:16.7 -18:16:29 9.2 0.15 158 10370 19:10:47.4 -18:22:39 15.9 158 Positions are for J2000
Event circumstances last updated at 2019/06/07 23:31:35 UT
Marc W. Buie, Southwest Research Institute