Event between 15VN171 and star GA1060:00344692 with event index number of 1019003
Geocentric closest approach at 2019/02/01 20:17:17 UTC
J2000 position of star is 03:22:21.4 +17:01:57
Equinox of date position of star is 03:23:26.1 +17:05:59
Stellar brightness G=16.9,
use SENSEUP=128
Star is 133 degrees from the moon.
Moon is 8% illuminated.
TNO apparent brightness V=24.6
TNO is 45.0 AU from the Sun
and 44.9 AU from the Earth.
The TNO is moving 1.5
km/sec on the sky relative to the star, or,
0.2 arcsec/hr.
The 1-sigma error in the time of the event is 3959 seconds.
The 1-sigma cross-track error in the shadow position is
4299 km.
The TNO has an absolute magnitude Hv=7.9
Diameter=156.3 km assuming a 5% albedo -- 101.5 sec chord
Diameter=63.8 km assuming a 30% albedo -- 41.4 sec chord
Dynamical classification is CLASSICAL
Star training set for 15VN171, (2019/02/01 20:17UT) Object RA Dec mag sep mel Aldebaran 04:37:01.1 +16:32:46 0.8 17.61 150 Menkar 03:03:16.8 +04:09:49 2.5 13.85 124 57Del Ari 03:12:43.5 +19:47:52 4.3 3.71 131 PPM 119006 03:21:04.2 +17:34:09 8.2 0.73 132 PPM 119026 03:22:26.7 +17:19:23 9.9 0.33 133 PPM 119028 03:22:41.3 +16:59:00 10.5 0.21 133 15VN171 03:23:26.2 +17:05:59 16.9 133 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 15VN171, (2019/02/01 20:17UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 17.61 150 Menkar 03:02:16.8 +04:05:21 2.5 13.85 124 57Del Ari 03:11:38.0 +19:43:36 4.3 3.71 131 PPM 119006 03:19:59.3 +17:30:04 8.2 0.73 132 PPM 119026 03:21:21.8 +17:15:20 9.9 0.33 133 PPM 119028 03:21:36.6 +16:54:57 10.5 0.21 133 15VN171 03:22:21.4 +17:01:57 16.9 133 Positions are for J2000
Event circumstances last updated at 2019/01/31 17:59:29 UT
Marc W. Buie, Southwest Research Institute