Event between (427507) 02DH5 and star GA0900:04497122 with event index number of 286847
Geocentric closest approach at 2020/09/13 18:50:27 UTC
J2000 position of star is 16:12:00.5 +01:22:58
Equinox of date position of star is 16:13:02.0 +01:19:55
Stellar brightness G=11.4,
use SENSEUP=8
Star is 115 degrees from the moon.
Moon is 18% illuminated.
TNO apparent brightness V=23.9
TNO is 23.2 AU from the Sun
and 23.5 AU from the Earth.
The TNO is moving 19.4
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 184 seconds.
The 1-sigma cross-track error in the shadow position is
4286 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=57.5 km assuming a 5% albedo -- 3.1 sec chord
Diameter=23.5 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
Star training set for 427507, (2020/09/13 18:50UT) Object RA Dec mag sep mel Antares 16:30:40.8 -26:28:34 0.9 28.13 128 1Del Oph 16:15:26.0 -03:44:46 2.7 5.11 118 PPM 162147 16:01:52.9 +04:22:15 5.8 4.13 111 PPM 162297 16:11:15.3 +01:32:52 7.5 0.50 115 PPM 162359 16:14:58.5 +01:20:06 10.0 0.48 116 PPM 162304 16:11:41.7 +01:13:47 11.0 0.36 115 427507 16:13:03.5 +01:19:51 11.4 115 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 427507, (2020/09/13 18:50UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 28.13 128 1Del Oph 16:14:20.7 -03:41:42 2.7 5.11 118 PPM 162147 16:00:51.1 +04:25:40 5.8 4.13 111 PPM 162297 16:10:12.3 +01:36:03 7.5 0.50 115 PPM 162359 16:13:55.4 +01:23:11 10.0 0.48 116 PPM 162304 16:10:38.6 +01:16:57 11.0 0.36 115 427507 16:12:00.5 +01:22:58 11.4 115 Positions are for J2000
Event circumstances last updated at 2020/03/16 22:09:23 UT
Marc W. Buie, Southwest Research Institute