Event between 01VN71 and star GA1220:02850712 with event index number of 168610
Geocentric closest approach at 2018/12/12 15:36:25 UTC
J2000 position of star is 06:39:40.2 +32:16:46
Equinox of date position of star is 06:40:53.8 +32:15:40
Stellar brightness G=16.3,
use SENSEUP=128
Star is 138 degrees from the moon.
Moon is 24% illuminated.
TNO apparent brightness V=23.7
TNO is 30.4 AU from the Sun
and 29.5 AU from the Earth.
The TNO is moving 23.3
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 334 seconds.
The 1-sigma cross-track error in the shadow position is
2325 km.
The TNO has an absolute magnitude Hv=8.9
Diameter=102.3 km assuming a 5% albedo -- 4.4 sec chord
Diameter=41.8 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is 3:2E
Star training set for 01VN71, (2018/12/12 15:36UT) Object RA Dec mag sep mel Pollux 07:46:28.4 +27:58:44 1.1 14.79 153 PPM 071742 06:33:41.3 +32:26:24 6.0 1.53 137 PPM 071904 06:40:19.5 +31:44:53 7.8 0.53 138 PPM 071939 06:42:23.8 +32:23:51 9.5 0.34 139 PPM 071911 06:40:52.1 +31:55:11 10.3 0.34 139 01VN71 06:40:54.2 +32:15:40 16.3 139 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 01VN71, (2018/12/12 15:36UT) Object RA Dec mag sep mel Pollux 07:45:18.1 +28:01:33 1.1 14.79 153 PPM 071742 06:32:27.2 +32:27:18 6.0 1.53 137 PPM 071904 06:39:05.8 +31:45:58 7.8 0.53 138 PPM 071939 06:41:09.7 +32:25:00 9.5 0.34 139 PPM 071911 06:39:38.3 +31:56:17 10.3 0.34 139 01VN71 06:39:40.2 +32:16:46 16.3 138 Positions are for J2000
Event circumstances last updated at 2018/11/04 22:24:16 UT
Marc W. Buie, Southwest Research Institute