Event between 04KC19 and star UC4-345-099167 with event index number of 126022
Geocentric closest approach at 2017/10/09 06:12:52 UTC
J2000 position of star is 17:24:11.7 -21:01:14
Equinox of date position of star is 17:25:14.6 -21:02:08
Stellar brightness R=16.5,
use SENSEUP=128
Star is 161 degrees from the moon.
Moon is 84% illuminated.
TNO apparent brightness V=23.5
TNO is 30.2 AU from the Sun
and 30.6 AU from the Earth.
The TNO is moving 18.7
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 2688 seconds.
The 1-sigma cross-track error in the shadow position is
1847 km.
The TNO has an absolute magnitude Hv=8.5
Diameter=121.3 km assuming a 5% albedo -- 6.5 sec chord
Diameter=49.5 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is 3:2E
Star training set for 04KC19, (2017/10/09 06:13UT) Object RA Dec mag sep mel Antares 16:30:30.0 -26:28:12 0.9 13.65 168 35Eta Oph 17:11:23.9 -15:44:45 2.6 6.23 165 PPM 266825 17:25:45.9 -21:27:24 6.1 0.44 161 PPM 266845 17:26:29.5 -20:51:51 9.6 0.34 161 04KC19 17:25:15.3 -21:02:09 16.5 161 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, (2017/10/09 06:13UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 13.65 168 35Eta Oph 17:10:22.7 -15:43:29 2.6 6.23 165 PPM 266825 17:24:42.0 -21:26:30 6.1 0.44 161 PPM 266845 17:25:25.9 -20:50:58 9.6 0.34 161 04KC19 17:24:11.7 -21:01:14 16.5 161 Positions are for J2000
Event circumstances last updated at 2017/08/01 16:33:22 UT
Marc W. Buie, Southwest Research Institute