Event between (55638) 02VE95 and star UC4-489-015045 with event index number of 101232
Geocentric closest approach at 2018/01/28 12:31:03 UTC
J2000 position of star is 05:52:16.1 +07:41:10
Equinox of date position of star is 05:53:10.7 +07:41:21
Stellar brightness R=16.5
Star is 12 degrees from the moon.
Moon is 87% illuminated.
TNO apparent brightness V=20.4
TNO is 29.8 AU from the Sun
and 29.0 AU from the Earth.
The TNO is moving 17.8
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 106 seconds.
The 1-sigma cross-track error in the shadow position is
1297 km.
The TNO has an absolute magnitude Hv=5.6
Diameter=457.1 km assuming a 5% albedo -- 26.9 sec chord
Diameter=186.6 km assuming a 30% albedo -- 11.0 sec chord
Dynamical classification is 3:2E
Star training set for 55638, (2018/01/28 12:31UT) Object RA Dec mag sep mel Betelgeuse 05:56:09.1 +07:24:32 0.4 0.77 12 Bellatrix 05:26:06.1 +06:21:53 1.6 6.86 14 52 Ori 05:48:58.5 +06:27:33 5.5 1.62 13 PPM 149553 05:52:06.1 +08:06:39 8.5 0.51 11 PPM 149580 05:53:34.2 +07:33:03 9.6 0.16 12 55638 05:53:14.9 +07:41:21 16.5 12 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 55638, (2018/01/28 12:31UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 0.77 12 Bellatrix 05:25:07.8 +06:20:59 1.6 6.86 14 52 Ori 05:48:00.2 +06:27:15 5.5 1.62 13 PPM 149553 05:51:07.1 +08:06:25 8.5 0.51 11 PPM 149580 05:52:35.4 +07:32:52 9.6 0.16 12 55638 05:52:16.1 +07:41:10 16.5 12 Positions are for J2000
Event circumstances last updated at 2016/10/09 17:24:25 UT
Marc W. Buie, Southwest Research Institute