* Astronomy

Orbital elements:
2014 OP2                                                 Earth MOID = 0.0007 AU
Epoch 2014 May 23.0 TT = JDT 2456800.5                  MPC
M 351.26042              (2000.0)            P               Q
n   0.26641909     Peri.  139.87597     -0.13202503     +0.99089790
a   2.3919888      Node   122.52214     -0.91725430     -0.11207542
e   0.6104789      Incl.    1.78620     -0.37578442     -0.07456847
P   3.70           H   29.1           G   0.15           U   6

MPEC 2014 - O35

The 4 - 9 metre wide asteroid 2014 OP2 made a close pass (0.5 lunar distances, 0.0013 AU), travelling at 11.71 km/second, to the Earth-Moon system on the 24th July 2014 @ 08:34 UT ±00:01. 

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