* Astronomy

Orbital elements:
2011 BW10                                                Earth MOID = 0.0138 AU
Epoch 2011 Jan. 19.0 TT = JDT 2455580.5                 MPC
M  18.66434              (2000.0)            P               Q
n   0.42116874     Peri.   65.40062     +0.96527435     -0.25039837
a   1.7626468      Node   309.01236     +0.19128785     +0.87162898
e   0.7469688      Incl.    5.49992     +0.17791678     +0.42138293
P   2.34           H   25.4           G   0.15
From 15 observations 2011 Jan. 24.

MPEC 2011 - B30

The 22 - 50 metre wide asteroid 2011 BW10 will make a close pass (7.8 lunar distances, 0.0201 AU), travelling at 24.00 km/second, to the Earth-Moon system on the 20th January, 2011 @ 14:18 UT ±01:50.

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