Event between 04DN64 and star GA0820:04348383 with event index number of 132877
Geocentric closest approach at 2018/08/08 22:50:24 UTC
J2000 position of star is 13:19:45.9 -06:51:23
Equinox of date position of star is 13:20:43.6 -06:57:10
Stellar brightness G=13.2,
use SENSEUP=32
Star is 100 degrees from the moon.
Moon is 9% illuminated.
TNO apparent brightness V=24.0
TNO is 42.2 AU from the Sun
and 42.7 AU from the Earth.
The TNO is moving 17.4
km/sec on the sky relative to the star, or,
2.0 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
1547 km.
The TNO has an absolute magnitude Hv=7.6
Diameter=183.7 km assuming a 5% albedo -- 10.5 sec chord
Diameter=75.0 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is CLASSICAL
Star training set for 04DN64, (2018/08/08 22:50UT) Object RA Dec mag sep mel Spica 13:26:10.5 -11:15:28 1.0 4.51 102 66 Vir 13:25:31.5 -05:15:39 6.1 2.07 100 PPM 196397 13:20:43.1 -06:38:20 8.4 0.31 99 PPM 196403 13:21:07.0 -07:06:33 9.6 0.18 100 04DN64 13:20:44.2 -06:57:13 13.2 100 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 04DN64, (2018/08/08 22:50UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 4.51 102 66 Vir 13:24:33.4 -05:09:51 6.1 2.07 100 PPM 196397 13:19:44.9 -06:32:30 8.4 0.31 99 PPM 196403 13:20:08.7 -07:00:43 9.6 0.18 100 04DN64 13:19:45.9 -06:51:23 13.2 99 Positions are for J2000
Event circumstances last updated at 2018/06/05 16:19:10 UT
Marc W. Buie, Southwest Research Institute