Event between 08QB43 and star UC4-545-148677 with event index number of 169565
Geocentric closest approach at 2017/06/25 22:59:53 UTC
J2000 position of star is 23:46:31.9 +18:48:33
Equinox of date position of star is 23:47:24.7 +18:54:19
Stellar brightness R=14.8,
use SENSEUP=128
Star is 115 degrees from the moon.
Moon is 5% illuminated.
TNO apparent brightness V=21.3
TNO is 38.2 AU from the Sun
and 38.2 AU from the Earth.
The TNO is moving 12.0
km/sec on the sky relative to the star, or,
1.6 arcsec/hr.
The 1-sigma error in the time of the event is 366 seconds.
The 1-sigma cross-track error in the shadow position is
4458 km.
The TNO has an absolute magnitude Hv=5.3
Diameter=532.1 km assuming a 5% albedo -- 44.3 sec chord
Diameter=217.2 km assuming a 30% albedo -- 18.1 sec chord
Dynamical classification is SCATEXTD
Star training set for 08QB43, (2017/06/25 23:00UT) Object RA Dec mag sep mel Deneb 20:42:01.7 +45:20:37 1.3 46.41 116 Algenib 00:14:08.3 +15:16:50 2.8 7.34 111 81Phi Peg 23:53:22.8 +19:13:03 5.1 1.44 114 PPM 142769 23:43:24.5 +18:45:49 8.0 0.96 116 PPM 142876 23:49:31.7 +18:36:21 9.3 0.58 115 PPM 142812 23:46:10.4 +18:59:37 10.7 0.31 115 08QB43 23:47:25.3 +18:54:22 14.8 115 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 08QB43, (2017/06/25 23:00UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 46.41 116 Algenib 00:13:14.2 +15:11:01 2.8 7.34 111 81Phi Peg 23:52:29.3 +19:07:12 5.1 1.44 114 PPM 142769 23:42:31.4 +18:40:00 8.0 0.96 116 PPM 142876 23:48:38.3 +18:30:31 9.3 0.58 115 PPM 142812 23:45:17.1 +18:53:47 10.7 0.31 115 08QB43 23:46:31.9 +18:48:33 14.8 115 Positions are for J2000
Event circumstances last updated at 2017/04/24 16:08:36 UT
Marc W. Buie, Southwest Research Institute