Event between (145453) 05RR43 and star UC4-507-007341 with event index number of 59156
Geocentric closest approach at 2017/08/23 16:40:30 UTC
J2000 position of star is 04:30:14.8 +11:22:38
Equinox of date position of star is 04:31:13.2 +11:24:51
Stellar brightness R=15.4,
use SENSEUP=128
Star is 108 degrees from the moon.
Moon is 5% illuminated.
TNO apparent brightness V=20.2
TNO is 39.5 AU from the Sun
and 39.6 AU from the Earth.
The TNO is moving 8.2
km/sec on the sky relative to the star, or,
1.0 arcsec/hr.
The 1-sigma error in the time of the event is 263 seconds.
The 1-sigma cross-track error in the shadow position is
2026 km.
The TNO has an absolute magnitude Hv=4.1
Diameter=912.0 km assuming a 5% albedo -- 110.9 sec chord
Diameter=372.3 km assuming a 30% albedo -- 45.3 sec chord
Dynamical classification is SCATEXTD
Star training set for 145453, (2017/08/23 16:40UT) Object RA Dec mag sep mel Aldebaran 04:36:56.1 +16:32:36 0.8 5.31 106 Bellatrix 05:26:04.7 +06:21:51 1.6 14.45 95 PPM 119911 04:28:27.2 +11:15:02 5.9 0.70 109 PPM 119975 04:31:55.7 +10:47:19 7.0 0.65 108 PPM 119978 04:32:09.6 +11:16:53 9.0 0.27 108 PPM 119957 04:30:58.9 +11:25:43 10.9 0.06 108 145453 04:31:13.5 +11:24:52 15.4 108 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 145453, (2017/08/23 16:40UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 5.31 106 Bellatrix 05:25:07.8 +06:20:58 1.6 14.45 95 PPM 119911 04:27:28.7 +11:12:44 5.9 0.70 109 PPM 119975 04:30:57.3 +10:45:06 7.0 0.65 108 PPM 119978 04:31:11.0 +11:14:40 9.0 0.27 108 PPM 119957 04:30:00.2 +11:23:29 10.9 0.06 108 145453 04:30:14.8 +11:22:38 15.4 108 Positions are for J2000
Event circumstances last updated at 2017/07/25 16:12:54 UT
Marc W. Buie, Southwest Research Institute