* Astronomy

Orbital elements:
2012 PC20                                                Earth MOID = 0.1612 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
M  76.34058              (2000.0)            P               Q
n   0.64420043     Peri.  290.12026     -0.15327237     +0.98039058
a   1.3277675      Node   330.20808     -0.78772513     -0.19689760
e   0.1839038      Incl.   14.43577     -0.59665459     +0.00810252
P   1.53           H   21.3           G   0.15           U   7

MPEC 2012 - Q06

The 140 - 320 metre wide asteroid 2012 PC20 made a close pass (71.3 lunar distances, 0.1831 AU), travelling at 7.60 km/second, to the Earth-Moon system on the 8th August, 2012 @ 23:10 UT ±03:44. 

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