Event between (511130) 13WV107 and star GA0860:03698261 with event index number of 1021998
Geocentric closest approach at 2020/12/20 20:59:25 UTC
J2000 position of star is 09:11:59.0 -02:19:12
Equinox of date position of star is 09:12:58.0 -02:24:02
Stellar brightness G=15.2,
use SENSEUP=128
Star is 146 degrees from the moon.
Moon is 39% illuminated.
TNO apparent brightness V=20.5
TNO is 10.7 AU from the Sun
and 10.1 AU from the Earth.
The TNO is moving 13.5
km/sec on the sky relative to the star, or,
6.6 arcsec/hr.
The 1-sigma error in the time of the event is 278 seconds.
The 1-sigma cross-track error in the shadow position is
3153 km.
The TNO has an absolute magnitude Hv=9.9
Diameter=63.1 km assuming a 5% albedo -- 4.7 sec chord
Diameter=25.8 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
Star training set for 511130, (2020/12/20 20:59UT) Object RA Dec mag sep mel Regulus 10:09:29.2 +11:51:50 1.3 20.01 162 Alphard 09:28:37.1 -08:45:02 2.0 7.43 146 28 Hya 09:26:26.9 -05:12:32 5.6 4.36 148 PPM 192135 09:13:44.9 -03:07:14 7.1 0.73 146 PPM 177772 09:12:55.1 -02:19:20 9.0 0.09 146 511130 09:13:02.7 -02:24:25 15.2 146 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 511130, (2020/12/20 20:59UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 20.01 162 Alphard 09:27:35.2 -08:39:31 2.0 7.43 146 28 Hya 09:25:24.0 -05:07:03 5.6 4.36 148 PPM 192135 09:12:41.4 -03:02:00 7.1 0.73 146 PPM 177772 09:11:51.4 -02:14:07 9.0 0.09 146 511130 09:11:59.0 -02:19:12 15.2 146 Positions are for J2000
Event circumstances last updated at 2019/06/08 00:45:46 UT
Marc W. Buie, Southwest Research Institute