Event between 14YJ50 and star UC4-572-044981 with event index number of 141854
Geocentric closest approach at 2017/10/27 23:41:45 UTC
J2000 position of star is 08:54:58.1 +24:13:41
Equinox of date position of star is 08:55:59.1 +24:09:40
Stellar brightness R=14.1,
use SENSEUP=64
Star is 171 degrees from the moon.
Moon is 51% illuminated.
TNO apparent brightness V=22.3
TNO is 35.2 AU from the Sun
and 35.3 AU from the Earth.
The TNO is moving 7.9
km/sec on the sky relative to the star, or,
1.1 arcsec/hr.
The 1-sigma error in the time of the event is 1821 seconds.
The 1-sigma cross-track error in the shadow position is
3459 km.
The TNO has an absolute magnitude Hv=6.7
Diameter=271.7 km assuming a 5% albedo -- 34.4 sec chord
Diameter=110.9 km assuming a 30% albedo -- 14.0 sec chord
Dynamical classification is 3:2E
Star training set for 14YJ50, (2017/10/27 23:42UT) Object RA Dec mag sep mel Pollux 07:46:24.3 +27:58:54 1.1 16.08 165 69Nu Cnc 09:03:46.6 +24:22:54 5.4 1.78 170 PPM 099167 08:57:16.2 +24:22:42 7.1 0.36 171 PPM 099132 08:54:58.6 +24:01:12 10.0 0.27 171 PPM 099151 08:56:23.6 +24:18:52 10.4 0.18 171 14YJ50 08:56:00.6 +24:09:33 14.1 171 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 14YJ50, (2017/10/27 23:42UT) Object RA Dec mag sep mel Pollux 07:45:18.1 +28:01:33 1.1 16.08 165 69Nu Cnc 09:02:44.2 +24:27:10 5.4 1.78 170 PPM 099167 08:56:13.7 +24:26:51 7.1 0.36 171 PPM 099132 08:53:56.1 +24:05:19 10.0 0.27 171 PPM 099151 08:55:21.1 +24:23:00 10.4 0.18 171 14YJ50 08:54:58.1 +24:13:41 14.1 171 Positions are for J2000
Event circumstances last updated at 2017/05/16 18:35:13 UT
Marc W. Buie, Southwest Research Institute