* Astronomy

Orbital elements:
2012 YQ3                                                 Earth MOID = 0.1548 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
M 332.65792              (2000.0)            P               Q
n   0.21035213     Peri.   47.39105     -0.77905766     -0.61043306
a   2.8000865      Node    94.48175     +0.52502288     -0.75984714
e   0.6061737      Incl.    8.24518     +0.34266622     -0.22361532
P   4.69           H   22.1           G   0.15           U   7

MPEC 2012 - Y25

The 97 - 220 metre wide asteroid 2012 YQ3 will make a close pass (63.2 lunar distances, 0.1624 AU), travelling at 8.10 km/second, to the Earth-Moon system on the 26th January, 2013 @ 13:42 UT ±00:32. 

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