Event between 15BH518 and star UC4-413-054786 with event index number of 142376
Geocentric closest approach at 2018/03/01 18:22:46 UTC
J2000 position of star is 11:15:00.0 -07:27:52
Equinox of date position of star is 11:15:54.5 -07:33:45
Stellar brightness R=14.3,
use SENSEUP=64
Star is 20 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=22.0
TNO is 25.4 AU from the Sun
and 24.5 AU from the Earth.
The TNO is moving 23.2
km/sec on the sky relative to the star, or,
4.7 arcsec/hr.
The 1-sigma error in the time of the event is 169 seconds.
The 1-sigma cross-track error in the shadow position is
3493 km.
The TNO has an absolute magnitude Hv=8.0
Diameter=154.2 km assuming a 5% albedo -- 6.6 sec chord
Diameter=62.9 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is CENTAURR
Star training set for 15BH518, (2018/03/01 18:23UT) Object RA Dec mag sep mel Regulus 10:09:20.3 +11:52:40 1.3 25.53 8 4Gam Crv 12:16:44.6 -17:38:34 2.6 17.92 37 PPM 194312 11:17:53.5 -07:14:03 6.1 0.59 20 PPM 194262 11:15:16.9 -07:37:40 9.4 0.17 20 15BH518 11:15:55.2 -07:33:50 14.3 20 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 15BH518, (2018/03/01 18:23UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 25.53 8 4Gam Crv 12:15:48.2 -17:32:31 2.6 17.92 37 PPM 194312 11:16:58.2 -07:08:05 6.1 0.59 20 PPM 194262 11:14:21.7 -07:31:43 9.4 0.17 20 15BH518 11:15:00.0 -07:27:52 14.3 20 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:18:55 UT
Marc W. Buie, Southwest Research Institute