Event between (471513) 12CE17 and star GA0860:04097539 with event index number of 1022438
Geocentric closest approach at 2020/12/08 18:27:57 UTC
J2000 position of star is 12:34:42.7 -02:27:33
Equinox of date position of star is 12:35:46.1 -02:34:20
Stellar brightness G=16.8,
use SENSEUP=128
Star is 13 degrees from the moon.
Moon is 42% illuminated.
TNO apparent brightness V=23.1
TNO is 19.0 AU from the Sun
and 19.4 AU from the Earth.
The TNO is moving 18.4
km/sec on the sky relative to the star, or,
4.7 arcsec/hr.
The 1-sigma error in the time of the event is 89 seconds.
The 1-sigma cross-track error in the shadow position is
1085 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=104.7 km assuming a 5% albedo -- 3.3 sec chord
Diameter=42.8 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
Star training set for 471513, (2020/12/08 18:28UT) Object RA Dec mag sep mel Spica 13:26:17.9 -11:16:12 1.0 15.25 28 Vindemiatrix 13:03:13.2 +10:50:49 2.8 15.06 17 PPM 195577 12:32:43.4 -05:10:04 6.4 2.70 14 PPM 178830 12:38:11.6 -02:26:17 7.5 0.62 13 PPM 178824 12:36:52.7 -02:27:25 9.9 0.30 13 PPM 178816 12:34:50.5 -02:26:59 10.6 0.27 13 471513 12:35:47.2 -02:34:27 16.8 13 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 471513, (2020/12/08 18:28UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 15.25 28 Vindemiatrix 13:02:10.2 +10:57:33 2.8 15.06 17 PPM 195577 12:31:38.7 -05:03:09 6.4 2.70 14 PPM 178830 12:37:07.1 -02:19:23 7.5 0.62 13 PPM 178824 12:35:48.1 -02:20:31 9.9 0.30 13 PPM 178816 12:33:45.9 -02:20:04 10.6 0.27 13 471513 12:34:42.7 -02:27:33 16.8 13 Positions are for J2000
Event circumstances last updated at 2020/07/29 23:33:13 UT
Marc W. Buie, Southwest Research Institute