* Astronomy

Orbital elements:
2012 KZ41                                                Earth MOID = 0.0095 AU
Epoch 2012 May 13.0 TT = JDT 2456060.5                  MPC
M 345.33534              (2000.0)            P               Q
n   0.28404132     Peri.  201.43983     +0.41752023     +0.90826384
a   2.2920022      Node    93.24676     -0.82969201     +0.39321762
e   0.5994534      Incl.    1.55461     -0.37052400     +0.14295702
P   3.47           H   24.9           G   0.15
From 34 observations 2012 May 26-28.

MPEC 2012 - K63

The 27 - 61 metre wide asteroid 2012 KZ41 will make a close pass (8.1 lunar distances, 0.0208 AU), travelling at 12.38 km/second, to the Earth-Moon system on the 31st May, 2012 @ 19:26 UT ±00:01. 

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