* Astronomy

Orbital elements:
2010 YD                                                  Earth MOID = 0.0016 AU
Epoch 2011 Feb. 8.0 TT = JDT 2455600.5                  MPC
M   4.11681              (2000.0)            P               Q
n   0.33833896     Peri.   39.79769     -0.69059989     -0.72319671
a   2.0397082      Node    93.88141     +0.66159325     -0.63596765
e   0.5375025      Incl.    0.43849     +0.29217487     -0.26931702
P   2.91           H   26.5           G   0.15           U   7

MPEC 2010 - Y27

The 13 - 30 metre wide asteroid 2010 YD will make a close pass (6.6 lunar distances, 0.0171 AU), travelling at 9.35 km/second, to the Earth-Moon system on the 2nd January, 2011 @ 12:52 UT ±00:37.

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