* Astronomy

Orbital elements:
2011 QD50                                                Earth MOID = 0.0197 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M  40.10072              (2000.0)            P               Q
n   0.71478650     Peri.   82.24878     -0.67483927     +0.73376451
a   1.2388493      Node   144.89276     -0.71944827     -0.63044565
e   0.5574721      Incl.    7.85752     -0.16427461     -0.25323491
P   1.38           H   23.7           G   0.15           U   7

MPEC 2011 - R09

The 48 - 110 metre wide asteroid 2011 QD50 made a close pass (8.7 lunar distances, 0.0224 AU), travelling at 18.57 km/second, to the Earth-Moon system on the 27th August, 2011 @ 01:54 UT ±00:01.

Returns on the 2nd May, 2126.

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