* Astronomy

The 21 - 46 metre wide asteroid 2010 WA9 will make a close pass (2.8 lunar distances, 0.0071 AU), travelling at 8.67 km/second, to the Earth-Moon system on the 12th December, 2010 @ 19:19 UT.

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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).

Orbital elements:
2010 WA9                                                 Earth MOID = 0.0028 AU
Epoch 2010 July 23.0 TT = JDT 2455400.5                 MPC
M 220.47412              (2000.0)            P               Q
n   0.71789536     Peri.   59.95145     -0.85582598     -0.51688872
a   1.2352702      Node    88.91826     +0.46753936     -0.78928459
e   0.3291278      Incl.    1.12879     +0.22128904     -0.33144516
P   1.37           H   25.5           G   0.15           U   9

MPEC 2010 - X05