Event between 15BF518 and star GA0820:04076135 with event index number of 1540612
Geocentric closest approach at 2020/07/08 20:05:43 UTC
J2000 position of star is 11:10:34.2 -06:45:27
Equinox of date position of star is 11:11:36.5 -06:52:08
Stellar brightness G=17.0,
use SENSEUP=128
Star is 154 degrees from the moon.
Moon is 86% illuminated.
TNO apparent brightness V=22.8
TNO is 17.5 AU from the Sun
and 17.9 AU from the Earth.
The TNO is moving 21.6
km/sec on the sky relative to the star, or,
6.0 arcsec/hr.
The 1-sigma error in the time of the event is 141 seconds.
The 1-sigma cross-track error in the shadow position is
1018 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=64.0 km assuming a 5% albedo -- 2.8 sec chord
Diameter=26.1 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
Star training set for 15BF518, (2020/07/08 20:06UT) Object RA Dec mag sep mel Regulus 10:09:27.8 +11:51:58 1.3 24.29 176 4Gam Crv 12:16:51.9 -17:39:21 2.6 19.22 136 PPM 194312 11:18:00.6 -07:14:49 6.1 1.63 153 PPM 194180 11:11:20.8 -06:48:02 8.1 0.10 154 PPM 194191 11:11:51.8 -06:54:26 9.4 0.07 154 15BF518 11:11:36.6 -06:52:09 17.0 154 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 15BF518, (2020/07/08 20:06UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 24.29 176 4Gam Crv 12:15:48.1 -17:32:31 2.6 19.22 136 PPM 194312 11:16:58.2 -07:08:05 6.1 1.63 153 PPM 194180 11:10:18.3 -06:41:20 8.1 0.10 154 PPM 194191 11:10:49.4 -06:47:44 9.4 0.07 154 15BF518 11:10:34.2 -06:45:27 17.0 154 Positions are for J2000
Event circumstances last updated at 2020/06/21 04:44:03 UT
Marc W. Buie, Southwest Research Institute