Event between 15VN171 and star GA1060:00345519 with event index number of 1019004
Geocentric closest approach at 2019/02/26 10:36:33 UTC
J2000 position of star is 03:22:43.1 +17:04:19
Equinox of date position of star is 03:23:47.9 +17:08:21
Stellar brightness G=14.5,
use SENSEUP=128
Star is 165 degrees from the moon.
Moon is 51% illuminated.
TNO apparent brightness V=24.6
TNO is 45.0 AU from the Sun
and 45.3 AU from the Earth.
The TNO is moving 11.6
km/sec on the sky relative to the star, or,
1.3 arcsec/hr.
The 1-sigma error in the time of the event is 511 seconds.
The 1-sigma cross-track error in the shadow position is
5247 km.
The TNO has an absolute magnitude Hv=7.9
Diameter=156.3 km assuming a 5% albedo -- 13.5 sec chord
Diameter=63.8 km assuming a 30% albedo -- 5.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 15VN171, (2019/02/26 10:37UT) Object RA Dec mag sep mel Aldebaran 04:37:01.3 +16:32:47 0.8 17.52 177 Menkar 03:03:17.0 +04:09:50 2.5 13.92 156 63Tau2Ari 03:23:51.6 +20:48:33 6.2 3.67 165 PPM 119006 03:21:04.4 +17:34:10 8.2 0.78 165 PPM 119026 03:22:26.9 +17:19:24 9.9 0.37 165 PPM 119043 03:24:33.3 +17:13:35 10.2 0.20 166 15VN171 03:23:48.1 +17:08:22 14.5 166 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 15VN171, (2019/02/26 10:37UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 17.52 177 Menkar 03:02:16.8 +04:05:21 2.5 13.92 156 63Tau2Ari 03:22:45.2 +20:44:31 6.2 3.67 165 PPM 119006 03:19:59.3 +17:30:04 8.2 0.78 165 PPM 119026 03:21:21.8 +17:15:20 9.9 0.37 165 PPM 119043 03:23:28.3 +17:09:33 10.2 0.20 166 15VN171 03:22:43.1 +17:04:19 14.5 165 Positions are for J2000
Event circumstances last updated at 2019/02/12 06:20:04 UT
Marc W. Buie, Southwest Research Institute