* Astronomy

Orbital elements:
2011 YD29                                                Earth MOID = 0.0158 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
M 273.71968              (2000.0)            P               Q
n   1.47691422     Peri.    5.01559     +0.29413950     +0.94871017
a   0.7636585      Node   282.12648     -0.88096569     +0.22209617
e   0.3120929      Incl.    6.80768     -0.37064998     +0.22499403
P   0.67           H   26.0           G   0.15           U   8

MPEC 2011 - Y64

The 17 - 38 metre wide asteroid 2011 YD29 made a close pass (6.0 lunar distances, 0.0154 AU), travelling at 6.67 km/second, to the Earth-Moon system on the 30th December, 2011 @ 00:46 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).