Event between 04KC19 and star GA0680:20305287 with event index number of 282587
Geocentric closest approach at 2020/08/17 19:52:20 UTC
J2000 position of star is 17:53:58.1 -20:35:29
Equinox of date position of star is 17:55:11.4 -20:35:39
Stellar brightness G=15.6,
use SENSEUP=128
Star is 140 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=25.0
TNO is 30.5 AU from the Sun
and 29.9 AU from the Earth.
The TNO is moving 10.0
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 510 seconds.
The 1-sigma cross-track error in the shadow position is
1200 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=121.3 km assuming a 5% albedo -- 6.0 sec chord
Diameter=49.5 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is 3:2E
Star training set for 04KC19, (2020/08/17 19:52UT) Object RA Dec mag sep mel Antares 16:30:40.5 -26:28:34 0.9 20.22 122 35Eta Oph 17:11:33.8 -15:44:57 2.6 11.44 129 PPM 267640 18:01:13.8 -20:20:22 6.0 1.44 141 PPM 267493 17:55:55.0 -21:01:25 8.5 0.46 140 PPM 267468 17:54:39.5 -20:30:09 9.4 0.16 140 04KC19 17:55:11.9 -20:35:39 15.6 140 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 04KC19, (2020/08/17 19:52UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 20.22 122 35Eta Oph 17:10:22.7 -15:43:29 2.6 11.44 129 PPM 267640 18:00:00.1 -20:20:23 6.0 1.44 141 PPM 267493 17:54:41.0 -21:01:17 8.5 0.46 140 PPM 267468 17:53:25.7 -20:29:58 9.4 0.16 140 04KC19 17:53:58.1 -20:35:29 15.6 140 Positions are for J2000
Event circumstances last updated at 2020/06/21 05:55:11 UT
Marc W. Buie, Southwest Research Institute