Event between 05UN524 and star UC4-647-038536 with event index number of 98764
Geocentric closest approach at 2018/01/23 19:48:31 UTC
J2000 position of star is 06:30:21.1 +39:16:48
Equinox of date position of star is 06:31:35.6 +39:15:59
Stellar brightness R=13.6,
use SENSEUP=64
Star is 78 degrees from the moon.
Moon is 38% illuminated.
TNO apparent brightness V=22.1
TNO is 18.7 AU from the Sun
and 17.9 AU from the Earth.
The TNO is moving 19.9
km/sec on the sky relative to the star, or,
5.5 arcsec/hr.
The 1-sigma error in the time of the event is 893 seconds.
The 1-sigma cross-track error in the shadow position is
3279 km.
The TNO has an absolute magnitude Hv=9.3
Diameter=84.3 km assuming a 5% albedo -- 4.2 sec chord
Diameter=34.4 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
Star training set for 05UN524, (2018/01/23 19:49UT) Object RA Dec mag sep mel Pollux 07:46:25.1 +27:58:52 1.1 19.17 94 34Bet Aur 06:00:51.3 +44:56:50 1.9 8.04 73 51 Aur 06:39:54.6 +39:22:23 5.7 1.61 80 PPM 071664 06:29:46.7 +39:05:51 7.8 0.39 78 PPM 071691 06:31:18.8 +38:57:06 8.8 0.32 78 PPM 071710 06:32:18.9 +39:09:26 10.7 0.18 78 05UN524 06:31:36.2 +39:15:59 13.6 78 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 05UN524, (2018/01/23 19:49UT) Object RA Dec mag sep mel Pollux 07:45:18.1 +28:01:33 1.1 19.17 94 34Bet Aur 05:59:31.6 +44:56:51 1.9 8.04 73 51 Aur 06:38:39.5 +39:23:25 5.7 1.61 80 PPM 071664 06:28:31.7 +39:06:37 7.8 0.39 78 PPM 071691 06:30:03.9 +38:57:55 8.8 0.32 78 PPM 071710 06:31:03.9 +39:10:16 10.7 0.18 78 05UN524 06:30:21.1 +39:16:48 13.6 78 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:12:28 UT
Marc W. Buie, Southwest Research Institute