* Astronomy

Orbital elements:
2012 DF31                                                Earth MOID = 0.0233 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
M 311.25383              (2000.0)            P               Q
n   0.84588127     Peri.  164.43710     +0.08517662     +0.99602590
a   1.1072944      Node   110.44351     -0.91708648     +0.08858325
e   0.4746220      Incl.    1.59161     -0.38948341     +0.00924205
P   1.17           H   24.4           G   0.15           U   8

MPEC 2012 - D69

The 34 - 76 metre wide asteroid 2012 DF31 will make a close pass (21.3 lunar distances, 0.0548 AU), travelling at 13.76 km/second, to the Earth-Moon system on the 10th March, 2012 @ 11:48 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).