Event between (174567) Varda and star UC4-439-066796 with event index number of 85147
Geocentric closest approach at 2017/10/06 05:19:26 UTC
J2000 position of star is 17:14:44.9 -02:18:17
Equinox of date position of star is 17:15:37.3 -02:19:22
Stellar brightness R=13.2
Star is 121 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=20.2
TNO is 46.8 AU from the Sun
and 47.2 AU from the Earth.
The TNO is moving 19.5
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 130 seconds.
The 1-sigma cross-track error in the shadow position is
2145 km.
The TNO has an absolute magnitude Hv=3.4
Diameter=1259.0 km assuming a 5% albedo -- 67.7 sec chord
Diameter=514.0 km assuming a 30% albedo -- 27.6 sec chord
Dynamical classification is SCATEXTD
Star training set for 174567, (2017/10/06 05:19UT) Object RA Dec mag sep mel Antares 16:30:30.0 -26:28:12 0.9 26.47 128 60Bet Oph 17:44:21.0 +04:33:40 2.8 9.94 113 PPM 180004 17:09:08.7 -01:06:06 6.5 2.04 122 PPM 200547 17:19:46.1 -02:49:42 7.0 1.14 119 PPM 180020 17:15:53.7 -02:31:20 8.8 0.21 120 174567 17:15:40.4 -02:19:26 13.2 120 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 174567, (2017/10/06 05:19UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:55 0.9 26.47 128 60Bet Oph 17:43:28.3 +04:34:05 2.8 9.94 113 PPM 180004 17:08:13.6 -01:04:47 6.5 2.04 122 PPM 200547 17:18:50.3 -02:48:39 7.0 1.14 119 PPM 180020 17:14:58.0 -02:30:11 8.8 0.21 120 174567 17:14:44.9 -02:18:17 13.2 120 Positions are for J2000
Event circumstances last updated at 2016/10/08 16:38:08 UT
Marc W. Buie, Southwest Research Institute