Event between (385201) 99RN215 and star GA0900:00190877 with event index number of 364333
Geocentric closest approach at 2020/10/27 02:17:42 UTC
J2000 position of star is 02:17:59.1 +01:00:01
Equinox of date position of star is 02:19:01.5 +01:05:35
Stellar brightness G=16.9,
use SENSEUP=128
Star is 48 degrees from the moon.
Moon is 82% illuminated.
TNO apparent brightness V=26.6
TNO is 45.8 AU from the Sun
and 44.9 AU from the Earth.
The TNO is moving 25.7
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 200 seconds.
The 1-sigma cross-track error in the shadow position is
2247 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=288.4 km assuming a 5% albedo -- 2.3 sec chord
Diameter=117.7 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CLASSICAL
Star training set for 385201, (2020/10/27 02:18UT) Object RA Dec mag sep mel Aldebaran 04:37:07.1 +16:32:58 0.8 37.33 85 68Omi Cet 02:20:24.0 -02:53:03 2.0 3.99 47 PPM 145462 02:19:06.5 +01:51:19 5.6 0.76 48 PPM 145421 02:16:13.9 +00:48:58 6.7 0.76 47 PPM 145460 02:18:46.5 +01:22:11 9.6 0.28 48 385201 02:19:03.4 +01:05:45 16.9 48 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 385201, (2020/10/27 02:18UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 37.33 85 68Omi Cet 02:19:20.8 -02:58:45 2.0 3.99 47 PPM 145462 02:18:01.9 +01:45:35 5.6 0.76 48 PPM 145421 02:15:09.6 +00:43:12 6.7 0.76 47 PPM 145460 02:17:42.1 +01:16:27 9.6 0.28 48 385201 02:17:59.1 +01:00:01 16.9 48 Positions are for J2000
Event circumstances last updated at 2020/03/16 22:31:51 UT
Marc W. Buie, Southwest Research Institute