Event between 03TK58 and star UC4-574-020622 with event index number of 93077
Geocentric closest approach at 2017/12/19 17:15:33 UTC
J2000 position of star is 05:53:34.2 +24:39:59
Equinox of date position of star is 05:54:40.3 +24:40:08
Stellar brightness R=15.1,
use SENSEUP=128
Star is 164 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=23.6
TNO is 45.9 AU from the Sun
and 44.9 AU from the Earth.
The TNO is moving 26.0
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 526 seconds.
The 1-sigma cross-track error in the shadow position is
4576 km.
The TNO has an absolute magnitude Hv=7.0
Diameter=235.5 km assuming a 5% albedo -- 9.0 sec chord
Diameter=96.1 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 03TK58, (2017/12/19 17:16UT) Object RA Dec mag sep mel Betelgeuse 05:56:08.7 +07:24:32 0.4 17.26 160 Alnath 05:27:25.8 +28:37:15 1.6 7.26 157 PPM 095124 05:58:02.1 +24:15:03 5.8 0.87 165 PPM 095035 05:54:39.7 +24:17:22 8.1 0.38 164 PPM 095060 05:55:24.8 +24:19:50 9.9 0.38 165 PPM 095066 05:55:59.6 +24:53:03 11.3 0.37 165 03TK58 05:54:40.4 +24:40:08 15.1 165 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 03TK58, (2017/12/19 17:16UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 17.26 160 Alnath 05:26:17.5 +28:36:24 1.6 7.26 157 PPM 095124 05:56:56.1 +24:14:59 5.8 0.87 165 PPM 095035 05:53:33.6 +24:17:13 8.1 0.38 164 PPM 095060 05:54:18.7 +24:19:42 9.9 0.38 165 PPM 095066 05:54:53.2 +24:52:56 11.3 0.37 165 03TK58 05:53:34.2 +24:39:59 15.1 164 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:06:45 UT
Marc W. Buie, Southwest Research Institute