* Astronomy

Orbital elements:
2010 YO                                                  Earth MOID = 0.0038 AU
Epoch 2011 Feb. 8.0 TT = JDT 2455600.5                  MPC
M 196.31729              (2000.0)            P               Q
n   1.57058235     Peri.  203.87971     +0.43371788     +0.80421641
a   0.7329858      Node    94.07311     -0.74713134     +0.57307205
e   0.4391872      Incl.   24.04063     -0.50367009     -0.15755760
P   0.63           H   24.6           G   0.15           U   8

MPEC 2010 - Y33

The 33 - 75 metre wide asteroid 2010 YO made a close pass (2.0 lunar distances, 0.0052 AU), travelling at 14.86 km/second, to the Earth-Moon system on the 25th December, 2010 @ 21:11 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).