Event between (470027) 06RC103 and star UC4-499-145280 with event index number of 147232
Geocentric closest approach at 2017/12/11 16:59:17 UTC
J2000 position of star is 23:22:12.1 +09:42:45
Equinox of date position of star is 23:23:06.5 +09:48:39
Stellar brightness R=16.1,
use SENSEUP=128
Star is 160 degrees from the moon.
Moon is 36% illuminated.
TNO apparent brightness V=21.7
TNO is 37.0 AU from the Sun
and 36.9 AU from the Earth.
The TNO is moving 6.0
km/sec on the sky relative to the star, or,
0.8 arcsec/hr.
The 1-sigma error in the time of the event is 361 seconds.
The 1-sigma cross-track error in the shadow position is
1981 km.
The TNO has an absolute magnitude Hv=5.9
Diameter=398.1 km assuming a 5% albedo -- 66.7 sec chord
Diameter=162.5 km assuming a 30% albedo -- 27.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 470027, (2017/12/11 16:59UT) Object RA Dec mag sep mel Markab 23:05:39.4 +15:18:08 2.5 6.95 153 66 Peg 23:23:58.9 +12:24:46 6.3 2.61 159 PPM 173953 23:18:54.3 +09:36:06 8.3 1.06 159 PPM 174009 23:21:53.5 +09:44:47 9.0 0.31 160 PPM 174036 23:23:59.4 +09:52:07 11.1 0.22 160 470027 23:23:06.6 +09:48:39 16.1 160 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 470027, (2017/12/11 16:59UT) Object RA Dec mag sep mel Markab 23:04:45.7 +15:12:18 2.5 6.95 153 66 Peg 23:23:04.6 +12:18:51 6.3 2.61 159 PPM 173953 23:17:59.9 +09:30:12 8.3 1.06 159 PPM 174009 23:20:59.0 +09:38:52 9.0 0.31 160 PPM 174036 23:23:04.8 +09:46:12 11.1 0.22 160 470027 23:22:12.1 +09:42:45 16.1 160 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:05:42 UT
Marc W. Buie, Southwest Research Institute