Event between 05EX297 and star UC4-503-054716 with event index number of 108286
Geocentric closest approach at 2018/03/20 18:41:49 UTC
J2000 position of star is 10:57:52.3 +10:27:40
Equinox of date position of star is 10:58:48.5 +10:21:54
Stellar brightness R=15.2,
use SENSEUP=128
Star is 122 degrees from the moon.
Moon is 12% illuminated.
TNO apparent brightness V=22.5
TNO is 44.0 AU from the Sun
and 43.0 AU from the Earth.
The TNO is moving 24.1
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 318 seconds.
The 1-sigma cross-track error in the shadow position is
5812 km.
The TNO has an absolute magnitude Hv=6.1
Diameter=359.8 km assuming a 5% albedo -- 14.9 sec chord
Diameter=146.9 km assuming a 30% albedo -- 6.1 sec chord
Dynamical classification is CLASSICAL
Star training set for 05EX297, (2018/03/20 18:42UT) Object RA Dec mag sep mel Regulus 10:09:20.4 +11:52:39 1.3 12.23 110 68Del Leo 11:15:04.5 +20:25:25 2.6 10.79 122 53 Leo 10:50:12.8 +10:26:54 5.3 2.12 120 PPM 157450 11:03:29.8 +09:04:29 7.7 1.73 123 PPM 127829 10:56:46.5 +10:01:24 9.4 0.61 121 PPM 127853 10:58:43.0 +10:33:24 10.2 0.20 122 05EX297 10:58:49.5 +10:21:48 15.2 122 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 05EX297, (2018/03/20 18:42UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 12.23 110 68Del Leo 11:14:06.7 +20:31:23 2.6 10.79 122 53 Leo 10:49:15.4 +10:32:42 5.3 2.12 120 PPM 157450 11:02:32.8 +09:10:23 7.7 1.73 123 PPM 127829 10:55:49.3 +10:07:15 9.4 0.61 121 PPM 127853 10:57:45.7 +10:39:16 10.2 0.20 122 05EX297 10:57:52.3 +10:27:40 15.2 122 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:22:15 UT
Marc W. Buie, Southwest Research Institute