First, save the following text as a file called "2005YU55.ssc" in /usr/share/celestia/extras
Then you can sit on YU55 while it flies by the Earth-Moon system, or on the Earth, or above or below. While YU55 comes closer to the Earth than the Moon, on 11/8/11 at about 21.36UT, it does not come between the Earth and Moon. It's below the plane of the Earth-Moon system by a significant distance. No danger of collision.
Code:
"2005 YU55" "Sol" { Class "asteroid" Mesh "ky26.cmod" Texture "asteroid.jpg" Radius 0.4 # maximum semi-axis MeshCenter [ -0.000718 -0.000099 0.000556 ] InfoURL "[url]http://en.wikipedia.org/wiki/2005_YU55"[/url] EllipticalOrbit { Epoch 2455800.5 # Epoch 2011 Aug. 27.0 Period 1.22 SemiMajorAxis 1.1427166 Eccentricity 0.4289481 Inclination 0.51346 AscendingNode 39.31601 ArgOfPericenter 268.77407 MeanAnomaly 348.84963 } RotationPeriod 0.9 Albedo 0.15 }
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