Event between (471512) 12CG and star UC4-524-051670 with event index number of 144675
Geocentric closest approach at 2017/11/04 03:02:03 UTC
J2000 position of star is 10:47:47.6 +14:43:38
Equinox of date position of star is 10:48:42.9 +14:38:07
Stellar brightness R=14.5,
use SENSEUP=128
Star is 118 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=22.5
TNO is 22.5 AU from the Sun
and 22.9 AU from the Earth.
The TNO is moving 19.2
km/sec on the sky relative to the star, or,
4.2 arcsec/hr.
The 1-sigma error in the time of the event is 103 seconds.
The 1-sigma cross-track error in the shadow position is
968 km.
The TNO has an absolute magnitude Hv=8.7
Diameter=109.7 km assuming a 5% albedo -- 5.7 sec chord
Diameter=44.8 km assuming a 30% albedo -- 2.3 sec chord
Dynamical classification is CENTAURR
Star training set for 471512, (2017/11/04 03:02UT) Object RA Dec mag sep mel Regulus 10:09:19.2 +11:52:46 1.3 9.98 109 68Del Leo 11:15:03.3 +20:25:32 2.6 8.54 121 52 Leo 10:47:21.9 +14:06:00 5.5 0.63 117 PPM 127714 10:49:00.3 +14:07:01 8.1 0.52 118 PPM 127709 10:48:31.2 +14:32:52 9.8 0.10 118 471512 10:48:44.3 +14:37:58 14.5 118 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 471512, (2017/11/04 03:02UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 9.98 109 68Del Leo 11:14:06.7 +20:31:23 2.6 8.54 121 52 Leo 10:46:25.1 +14:11:39 5.5 0.63 117 PPM 127714 10:48:03.6 +14:12:42 8.1 0.52 118 PPM 127709 10:47:34.4 +14:38:33 9.8 0.10 118 471512 10:47:47.6 +14:43:38 14.5 118 Positions are for J2000
Event circumstances last updated at 2017/05/16 18:35:21 UT
Marc W. Buie, Southwest Research Institute