* Astronomy

Orbital elements:
2012 KO18                                                Earth MOID = 0.0308 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
M 323.37250              (2000.0)            P               Q
n   0.29628417     Peri.   94.95978     +0.72087163     +0.68986394
a   2.2284202      Node   221.44384     -0.66905544     +0.66761214
e   0.6608974      Incl.    5.77254     -0.18085603     +0.27996745
P   3.33           H   22.1           G   0.15           U   9

MPEC 2012 - K49

The 100 - 220 metre wide asteroid 2012 KO18 will make a close pass (32.2 lunar distances, 0.0827 AU), travelling at 15.29 km/second, to the Earth-Moon system on the 2nd June, 2012 @ 21:13 UT ±00:02. 

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