Event between 13AP183 and star GA1020:03293727 with event index number of 1026197
Geocentric closest approach at 2020/12/17 22:00:41 UTC
J2000 position of star is 09:13:11.0 +13:06:20
Equinox of date position of star is 09:14:14.7 +13:01:28
Stellar brightness G=14.4,
use SENSEUP=64
Star is 170 degrees from the moon.
Moon is 13% illuminated.
TNO apparent brightness V=22.5
TNO is 48.6 AU from the Sun
and 48.0 AU from the Earth.
The TNO is moving 15.1
km/sec on the sky relative to the star, or,
1.6 arcsec/hr.
The 1-sigma error in the time of the event is 201 seconds.
The 1-sigma cross-track error in the shadow position is
1971 km.
The TNO has an absolute magnitude Hv=5.6
Diameter=455.0 km assuming a 5% albedo -- 30.2 sec chord
Diameter=185.8 km assuming a 30% albedo -- 12.3 sec chord
Dynamical classification is 8:3EEEEE
Star training set for 13AP183, (2020/12/17 22:01UT) Object RA Dec mag sep mel Regulus 10:09:29.2 +11:51:50 1.3 13.51 159 PPM 126297 09:18:59.4 +11:24:44 6.4 1.97 168 PPM 126270 09:17:16.8 +14:02:10 8.4 1.25 170 PPM 126193 09:12:34.3 +12:48:16 9.2 0.48 170 PPM 126230 09:15:04.9 +13:02:41 10.8 0.19 169 13AP183 09:14:19.7 +13:01:05 14.4 169 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 13AP183, (2020/12/17 22:01UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 13.51 159 PPM 126297 09:17:51.3 +11:30:04 6.4 1.97 168 PPM 126270 09:16:07.7 +14:07:28 8.4 1.25 170 PPM 126193 09:11:25.5 +12:53:28 9.2 0.48 170 PPM 126230 09:13:56.1 +13:07:56 10.8 0.19 169 13AP183 09:13:11.0 +13:06:20 14.4 170 Positions are for J2000
Event circumstances last updated at 2019/06/08 00:44:57 UT
Marc W. Buie, Southwest Research Institute