Event between (488644) 03HY56 and star GA0740:05178442 with event index number of 193884
Geocentric closest approach at 2019/04/04 15:42:18 UTC
J2000 position of star is 14:23:28.5 -14:21:14
Equinox of date position of star is 14:24:31.2 -14:26:24
Stellar brightness G=17.0,
use SENSEUP=128
Star is 148 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=24.1
TNO is 41.9 AU from the Sun
and 41.0 AU from the Earth.
The TNO is moving 22.4
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 168 seconds.
The 1-sigma cross-track error in the shadow position is
2177 km.
The TNO has an absolute magnitude Hv=7.9
Diameter=158.5 km assuming a 5% albedo -- 7.1 sec chord
Diameter=64.7 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is CLASSICAL
Star training set for 488644, (2019/04/04 15:42UT) Object RA Dec mag sep mel Spica 13:26:12.6 -11:15:41 1.0 14.56 161 27Bet Lib 15:18:02.8 -09:27:10 2.6 14.00 137 2 Lib 14:24:28.0 -11:48:04 6.2 2.64 149 PPM 228754 14:25:38.8 -14:10:04 7.6 0.38 148 PPM 228757 14:25:42.4 -14:28:24 9.5 0.29 148 488644 14:24:31.6 -14:26:26 17.0 148 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 488644, (2019/04/04 15:42UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 14.56 161 27Bet Lib 15:17:00.3 -09:22:59 2.6 14.00 137 2 Lib 14:23:25.6 -11:42:52 6.2 2.64 149 PPM 228754 14:24:35.8 -14:04:53 7.6 0.38 148 PPM 228757 14:24:39.2 -14:23:13 9.5 0.29 148 488644 14:23:28.5 -14:21:14 17.0 148 Positions are for J2000
Event circumstances last updated at 2019/02/12 07:08:47 UT
Marc W. Buie, Southwest Research Institute