Event between (500878) 13JG64 and star GA0800:05006827 with event index number of 220928
Geocentric closest approach at 2018/07/14 17:44:57 UTC
J2000 position of star is 16:05:16.1 -09:58:10
Equinox of date position of star is 16:06:16.6 -10:01:06
Stellar brightness G=14.5,
use SENSEUP=128
Star is 106 degrees from the moon.
Moon is 4% illuminated.
TNO apparent brightness V=24.4
TNO is 45.5 AU from the Sun
and 44.8 AU from the Earth.
The TNO is moving 14.7
km/sec on the sky relative to the star, or,
1.6 arcsec/hr.
The 1-sigma error in the time of the event is 320 seconds.
The 1-sigma cross-track error in the shadow position is
1924 km.
The TNO has an absolute magnitude Hv=7.7
Diameter=173.8 km assuming a 5% albedo -- 11.8 sec chord
Diameter=70.9 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is SCATEXTD
Star training set for 500878, (2018/07/14 17:45UT) Object RA Dec mag sep mel Antares 16:30:32.8 -26:28:18 0.9 17.42 115 1Del Oph 16:15:19.1 -03:44:27 2.7 6.67 106 15Psi Sco 16:13:00.9 -10:06:39 4.9 1.66 107 PPM 199248 16:05:10.6 -09:58:10 7.8 0.28 105 PPM 231177 16:06:31.3 -10:12:59 9.1 0.21 106 500878 16:06:16.9 -10:01:07 14.5 106 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 500878, (2018/07/14 17:45UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 17.42 115 1Del Oph 16:14:20.7 -03:41:42 2.7 6.67 106 15Psi Sco 16:12:00.0 -10:03:51 4.9 1.66 107 PPM 199248 16:04:09.8 -09:55:11 7.8 0.28 105 PPM 231177 16:05:30.4 -10:10:02 9.1 0.21 106 500878 16:05:16.1 -09:58:10 14.5 106 Positions are for J2000
Event circumstances last updated at 2018/06/05 16:14:45 UT
Marc W. Buie, Southwest Research Institute