Event between 03UT292 and star UC4-494-012850 with event index number of 93088
Geocentric closest approach at 2017/12/27 21:48:01 UTC
J2000 position of star is 05:34:13.6 +08:39:00
Equinox of date position of star is 05:35:12.4 +08:39:39
Stellar brightness R=16.0,
use SENSEUP=128
Star is 58 degrees from the moon.
Moon is 66% illuminated.
TNO apparent brightness V=21.4
TNO is 28.1 AU from the Sun
and 27.2 AU from the Earth.
The TNO is moving 23.3
km/sec on the sky relative to the star, or,
4.3 arcsec/hr.
The 1-sigma error in the time of the event is 288 seconds.
The 1-sigma cross-track error in the shadow position is
1678 km.
The TNO has an absolute magnitude Hv=6.9
Diameter=252.4 km assuming a 5% albedo -- 10.8 sec chord
Diameter=103.0 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is 3:2E
Star training set for 03UT292, (2017/12/27 21:48UT) Object RA Dec mag sep mel Betelgeuse 05:56:08.8 +07:24:32 0.4 5.33 63 Bellatrix 05:26:05.8 +06:21:52 1.6 3.22 56 PPM 149227 05:38:18.4 +08:57:42 5.8 0.82 59 PPM 149091 05:32:40.2 +09:14:17 7.8 0.85 58 PPM 149127 05:34:18.5 +08:33:00 9.1 0.25 58 03UT292 05:35:12.6 +08:39:39 16.0 58 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 03UT292, (2017/12/27 21:48UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 5.33 63 Bellatrix 05:25:07.8 +06:20:58 1.6 3.22 56 PPM 149227 05:37:19.3 +08:57:07 5.8 0.82 59 PPM 149091 05:31:41.0 +09:13:34 7.8 0.85 58 PPM 149127 05:33:19.6 +08:32:19 9.1 0.25 58 03UT292 05:34:13.6 +08:39:00 16.0 58 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:08:44 UT
Marc W. Buie, Southwest Research Institute