* Astronomy

Orbital elements:
2012 MX2                                                 Earth MOID = 0.0210 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
M   6.75122              (2000.0)            P               Q
n   1.31550875     Peri.  205.20608     -0.36215783     -0.92781856
a   0.8249106      Node   266.13182     +0.86966448     -0.30181438
e   0.4754610      Incl.    5.14150     +0.33544804     -0.21922773
P   0.75           H   23.2           G   0.15           U   9

MPEC 2012 - M25

The 60 - 130 metre wide asteroid 2012 MX2 will make a close pass (64.1 lunar distances, 0.1646 AU), travelling at 9.76 km/second, to the Earth-Moon system on the 21st June, 2012 @ 03:04 UT ±01:13. 

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