Event between (32532) Thereus and star UC4-447-041625 with event index number of 110003
Geocentric closest approach at 2018/03/16 11:05:01 UTC
J2000 position of star is 07:54:42.6 -00:39:56
Equinox of date position of star is 07:55:38.0 -00:42:51
Stellar brightness R=15.0,
use SENSEUP=128
Star is 133 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=20.4
TNO is 12.7 AU from the Sun
and 12.1 AU from the Earth.
The TNO is moving 13.6
km/sec on the sky relative to the star, or,
5.6 arcsec/hr.
The 1-sigma error in the time of the event is 61 seconds.
The 1-sigma cross-track error in the shadow position is
1104 km.
The TNO has an absolute magnitude Hv=9.1
Diameter=91.2 km assuming a 5% albedo -- 6.7 sec chord
Diameter=37.2 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is CENTAURR
Star training set for 32532, (2018/03/16 11:05UT) Object RA Dec mag sep mel Sirius 06:45:57.0 -16:44:32 -1.5 23.48 112 15Rho Pup 08:08:19.2 -24:21:28 2.8 23.84 126 13Zet CMi 07:52:38.6 +01:43:09 5.1 2.55 132 PPM 177184 07:55:38.0 -00:40:21 8.4 0.04 133 32532 07:55:38.4 -00:42:52 15.0 133 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 32532, (2018/03/16 11:05UT) Object RA Dec mag sep mel Sirius 06:45:08.2 -16:43:20 -1.5 23.48 112 15Rho Pup 08:07:32.5 -24:18:15 2.8 23.84 126 13Zet CMi 07:51:42.0 +01:46:01 5.1 2.55 132 PPM 177184 07:54:42.3 -00:37:25 8.4 0.04 133 32532 07:54:42.6 -00:39:56 15.0 133 Positions are for J2000
Event circumstances last updated at 2018/02/05 17:12:35 UT
Marc W. Buie, Southwest Research Institute