* Astronomy

Orbital elements:
2012 AZ                                                  Earth MOID = 0.0334 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
M   6.72706              (2000.0)            P               Q
n   0.63680152     Peri.  264.10685     -0.99455420     +0.01639486
a   1.3380325      Node   276.80108     +0.02705666     -0.91307349
e   0.3786464      Incl.    5.94953     -0.10064733     -0.40746534
P   1.55           H   25.8           G   0.15           U   8

MPEC 2012 - A22

The 19 - 42 metre wide asteroid 2012 AZ will make a close pass (15.8 lunar distances, 0.0405 AU), travelling at 11.04 km/second, to the Earth-Moon system on the 13th January, 2012 @ 23:21 UT ±00:52.

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