Event between 01VN71 and star UC4-610-032029 with event index number of 97827
Geocentric closest approach at 2018/01/31 14:15:22 UTC
J2000 position of star is 06:22:17.9 +31:49:56
Equinox of date position of star is 06:23:27.8 +31:49:20
Stellar brightness R=16.5,
use SENSEUP=128
Star is 38 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=23.8
TNO is 30.3 AU from the Sun
and 29.5 AU from the Earth.
The TNO is moving 18.7
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 415 seconds.
The 1-sigma cross-track error in the shadow position is
3640 km.
The TNO has an absolute magnitude Hv=8.9
Diameter=102.3 km assuming a 5% albedo -- 5.5 sec chord
Diameter=41.8 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is 3:2E
Star training set for 01VN71, (2018/01/31 14:15UT) Object RA Dec mag sep mel Pollux 07:46:25.2 +27:58:52 1.1 18.35 20 Alnath 05:27:26.2 +28:37:16 1.6 12.51 50 48 Aur 06:29:43.8 +30:28:49 6.4 1.90 37 PPM 071595 06:26:23.5 +32:15:37 8.1 0.76 38 PPM 071536 06:23:01.1 +31:56:09 10.0 0.15 38 01VN71 06:23:28.4 +31:49:20 16.5 38 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, (2018/01/31 14:15UT) Object RA Dec mag sep mel Pollux 07:45:18.1 +28:01:33 1.1 18.35 20 Alnath 05:26:17.5 +28:36:24 1.6 12.51 50 48 Aur 06:28:34.1 +30:29:35 6.4 1.90 37 PPM 071595 06:25:12.7 +32:16:18 8.1 0.76 38 PPM 071536 06:21:50.5 +31:56:45 10.0 0.15 38 01VN71 06:22:17.9 +31:49:56 16.5 38 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:14:03 UT
Marc W. Buie, Southwest Research Institute