Event between 04KC19 and star UC4-345-099389 with event index number of 126027
Geocentric closest approach at 2017/10/12 10:33:56 UTC
J2000 position of star is 17:24:28.7 -21:01:35
Equinox of date position of star is 17:25:31.7 -21:02:28
Stellar brightness R=15.6,
use SENSEUP=128
Star is 154 degrees from the moon.
Moon is 51% illuminated.
TNO apparent brightness V=23.5
TNO is 30.2 AU from the Sun
and 30.7 AU from the Earth.
The TNO is moving 20.1
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 2495 seconds.
The 1-sigma cross-track error in the shadow position is
3791 km.
The TNO has an absolute magnitude Hv=8.5
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, (2017/10/12 10:34UT) Object RA Dec mag sep mel Antares 16:30:30.0 -26:28:12 0.9 13.70 141 35Eta Oph 17:11:23.9 -15:44:45 2.6 6.27 150 PPM 266825 17:25:45.9 -21:27:24 6.1 0.42 154 PPM 266845 17:26:29.5 -20:51:51 9.6 0.28 154 04KC19 17:25:32.4 -21:02:29 15.6 154 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, (2017/10/12 10:34UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 13.70 141 35Eta Oph 17:10:22.7 -15:43:29 2.6 6.27 150 PPM 266825 17:24:42.0 -21:26:30 6.1 0.42 154 PPM 266845 17:25:25.9 -20:50:58 9.6 0.28 154 04KC19 17:24:28.7 -21:01:35 15.6 153 Positions are for J2000
Event circumstances last updated at 2017/08/01 16:33:26 UT
Marc W. Buie, Southwest Research Institute