Event between 15VO172 and star GA1060:00357885 with event index number of 1019264
Geocentric closest approach at 2019/12/24 13:24:53 UTC
J2000 position of star is 03:27:59.6 +17:31:41
Equinox of date position of star is 03:29:04.6 +17:35:36
Stellar brightness G=12.6,
use SENSEUP=16
Star is 162 degrees from the moon.
Moon is 3% illuminated.
TNO apparent brightness V=25.0
TNO is 44.1 AU from the Sun
and 43.3 AU from the Earth.
The TNO is moving 19.4
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 664 seconds.
The 1-sigma cross-track error in the shadow position is
3569 km.
The TNO has an absolute magnitude Hv=8.5
Diameter=119.7 km assuming a 5% albedo -- 6.2 sec chord
Diameter=48.9 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 15VO172, (2019/12/24 13:25UT) Object RA Dec mag sep mel Aldebaran 04:37:04.2 +16:32:52 0.8 16.27 176 Menkar 03:03:19.6 +04:10:01 2.5 14.84 151 PPM 119253 03:40:33.7 +16:36:01 6.2 2.91 165 PPM 119101 03:29:17.2 +17:14:08 8.5 0.36 162 15VO172 03:29:07.7 +17:35:47 12.6 162 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 15VO172, (2019/12/24 13:25UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 16.27 176 Menkar 03:02:16.8 +04:05:21 2.5 14.84 151 PPM 119253 03:39:25.8 +16:32:11 6.2 2.91 165 PPM 119101 03:28:09.2 +17:10:03 8.5 0.36 162 15VO172 03:27:59.6 +17:31:41 12.6 162 Positions are for J2000
Event circumstances last updated at 2019/01/30 20:47:49 UT
Marc W. Buie, Southwest Research Institute