* Astronomy

Orbital elements:
2012 YD7                                                 Earth MOID = 0.0176 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
M  78.76524              (2000.0)            P               Q
n   1.19299424     Peri.  201.59528     +0.07853466     +0.99600337
a   0.8804617      Node    72.92909     -0.90801005     +0.08908050
e   0.2196224      Incl.    2.55049     -0.41152163     -0.00647646
P   0.83           H   24.3           G   0.15           U   8

MPEC 2013 - A04

The 33 - 74 metre wide asteroid 2012 YD7 will make a close pass (35.0 lunar distances, 0.0901 AU), travelling at 4.98 km/second, to the Earth-Moon system on the 5th January, 2013 @ 06:52 UT ±00:36. 

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