Event between 07VK305 and star UC4-457-005646 with event index number of 89667
Geocentric closest approach at 2017/11/11 14:55:24 UTC
J2000 position of star is 04:04:33.5 +01:20:34
Equinox of date position of star is 04:05:23.8 +01:23:10
Stellar brightness R=14.8
Star is 90 degrees from the moon.
Moon is 42% illuminated.
TNO apparent brightness V=23.2
TNO is 54.5 AU from the Sun
and 53.5 AU from the Earth.
The TNO is moving 26.0
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 1104 seconds.
The 1-sigma cross-track error in the shadow position is
2918 km.
The TNO has an absolute magnitude Hv=5.8
Diameter=416.9 km assuming a 5% albedo -- 16.1 sec chord
Diameter=170.2 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is SCATNEAR
Star training set for 07VK305, (2017/11/11 14:55UT) Object RA Dec mag sep mel Aldebaran 04:36:56.9 +16:32:38 0.8 17.02 79 Menkar 03:03:12.9 +04:09:32 2.5 15.79 104 PPM 147177 04:05:06.0 +02:52:27 5.9 1.49 90 PPM 147207 04:07:37.2 +01:43:50 8.3 0.63 89 PPM 147183 04:05:31.7 +01:21:43 9.8 0.03 90 07VK305 04:05:28.9 +01:23:26 14.8 90 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.
Event circumstances last updated at 2016/03/15 17:43:34 UT
Marc W. Buie, Southwest Research Institute