Event between 15BE568 and star GA0740:04967233 with event index number of 2643555
Geocentric closest approach at 2021/12/20 23:23:37 UTC
J2000 position of star is 13:14:46.1 -14:46:26
Equinox of date position of star is 13:15:56.0 -14:53:22
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 95 degrees from the moon.
Moon is 97% illuminated.
TNO apparent brightness V=22.8
TNO is 21.7 AU from the Sun
and 22.1 AU from the Earth.
The TNO is moving 19.4
km/sec on the sky relative to the star, or,
4.4 arcsec/hr.
The 1-sigma error in the time of the event is 150 seconds.
The 1-sigma cross-track error in the shadow position is
1129 km.
The TNO has an absolute magnitude Hv=9.2
Diameter=88.7 km assuming a 5% albedo -- 4.6 sec chord
Diameter=36.2 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
Star training set for 15BE568, (2021/12/20 23:24UT) Object RA Dec mag sep mel Spica 13:26:21.2 -11:16:31 1.0 4.42 95 53 Vir 13:13:13.9 -16:18:59 4.8 1.57 95 PPM 226980 13:15:19.1 -14:23:53 8.2 0.51 94 PPM 226998 13:15:58.8 -15:08:01 8.6 0.24 95 15BE568 13:15:56.2 -14:53:23 16.3 95 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 15BE568, (2021/12/20 23:24UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 4.42 95 53 Vir 13:12:03.7 -16:12:01 4.8 1.57 95 PPM 226980 13:14:09.2 -14:16:56 8.2 0.51 94 PPM 226998 13:14:48.6 -15:01:04 8.6 0.24 95 15BE568 13:14:46.1 -14:46:26 16.3 95 Positions are for J2000
Event circumstances last updated at 2021/12/05 02:00:10 UT
Marc W. Buie, Southwest Research Institute