Event between 04HN79 and star GA0660:06491867 with event index number of 256783
Geocentric closest approach at 2020/04/24 20:02:44 UTC
J2000 position of star is 15:24:28.5 -23:11:34
Equinox of date position of star is 15:25:39.6 -23:15:47
Stellar brightness G=14.5,
use SENSEUP=128
Star is 173 degrees from the moon.
Moon is 3% illuminated.
TNO apparent brightness V=25.5
TNO is 35.5 AU from the Sun
and 34.6 AU from the Earth.
The TNO is moving 22.3
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 112 seconds.
The 1-sigma cross-track error in the shadow position is
1650 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=228.0 km assuming a 5% albedo -- 2.7 sec chord
Diameter=93.1 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is SCATNEAR
Star training set for 04HN79, (2020/04/24 20:03UT) Object RA Dec mag sep mel Antares 16:30:39.4 -26:28:31 0.9 15.07 163 7Del Sco 16:01:32.3 -22:40:41 2.3 8.28 170 PPM 264038 15:17:33.9 -22:28:24 5.5 2.03 173 PPM 264214 15:26:05.5 -23:25:49 8.4 0.19 172 04HN79 15:25:40.0 -23:15:48 14.5 173 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 04HN79, (2020/04/24 20:03UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 15.07 163 7Del Sco 16:00:20.0 -22:37:18 2.3 8.28 170 PPM 264038 15:16:23.0 -22:23:58 5.5 2.03 173 PPM 264214 15:24:53.9 -23:21:35 8.4 0.19 172 04HN79 15:24:28.5 -23:11:34 14.5 173 Positions are for J2000
Event circumstances last updated at 2020/03/08 20:29:52 UT
Marc W. Buie, Southwest Research Institute