* Astronomy

Orbital elements:
2011 WR46                                           PHA, Earth MOID = 0.0273 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M 317.80360              (2000.0)            P               Q
n   0.29095977     Peri.  323.51855     -0.91239149     +0.40304296
a   2.2555238      Node   240.39791     -0.35343960     -0.86373857
e   0.8815834      Incl.    4.71042     -0.20645149     -0.30250959
P   3.39           H   20.0           G   0.15           U   9

MPEC 2011 - W74


The 270 - 600 metre wide asteroid 2011 WR46 will make a close pass (16.7 lunar distances, 0.0428 AU), travelling at 32.76 km/second, to the Earth-Moon system on the 11th December, 2011 @ 07:07 UT ±03:11.

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