Event between 11EY90 and star GA0760:04788602 with event index number of 1576976
Geocentric closest approach at 2020/08/11 23:26:34 UTC
J2000 position of star is 13:22:06.7 -13:38:26
Equinox of date position of star is 13:23:12.4 -13:44:52
Stellar brightness G=15.2,
use SENSEUP=128
Star is 150 degrees from the moon.
Moon is 47% illuminated.
TNO apparent brightness V=25.8
TNO is 36.1 AU from the Sun
and 36.5 AU from the Earth.
The TNO is moving 18.5
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 156 seconds.
The 1-sigma cross-track error in the shadow position is
1565 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=251.2 km assuming a 5% albedo -- 3.3 sec chord
Diameter=102.6 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is 2:1E
Star training set for 11EY90, (2020/08/11 23:27UT) Object RA Dec mag sep mel Spica 13:26:16.9 -11:16:06 1.0 2.59 151 68 Vir 13:27:48.7 -12:48:52 5.3 1.46 151 PPM 227232 13:24:46.0 -13:45:21 8.2 0.38 151 PPM 227191 13:23:25.3 -13:37:23 9.3 0.14 150 11EY90 13:23:12.5 -13:44:52 15.2 151 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 11EY90, (2020/08/11 23:27UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 2.59 151 68 Vir 13:26:43.0 -12:42:28 5.3 1.46 151 PPM 227232 13:23:40.2 -13:38:56 8.2 0.38 151 PPM 227191 13:22:19.6 -13:30:57 9.3 0.14 150 11EY90 13:22:06.7 -13:38:26 15.2 150 Positions are for J2000
Event circumstances last updated at 2020/07/31 20:52:07 UT
Marc W. Buie, Southwest Research Institute