* Astronomy

Orbital elements:
2012 SK8                                                 Earth MOID = 0.1285 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
M  44.26509              (2000.0)            P               Q
n   0.63564292     Peri.  119.19017     +0.55967388     +0.82789602
a   1.3396579      Node   185.30509     -0.82848587     +0.56000809
e   0.2259777      Incl.   23.44567     +0.01939893     +0.03129082
P   1.55           H   20.1           G   0.15           U   7

MPEC 2012 - S34

The 260 - 580 metre wide asteroid 2012 SK8 will make a close pass (65.0 lunar distances, 0.1671 AU), travelling at 12.42 km/second, to the Earth-Moon system on the 20th September, 2012 @ 22:06 UT ±00:22. 

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