* Astronomy

Orbital elements:
2011 QE48                                                Earth MOID = 0.1333 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M   1.67183              (2000.0)            P               Q
n   0.27298175     Peri.  335.18785     +0.82591698     +0.56284794
a   2.3534969      Node   350.35729     -0.47931315     +0.67053248
e   0.5214150      Incl.   11.22583     -0.29685023     +0.48330983
P   3.61           H   21.7           G   0.15           U   6

MPEC 2011 - R04

The 120 - 270 metre wide asteroid 2011 QE48 made a close pass (52.4 lunar distances, 0.1348 AU), travelling at 8.43 km/second, to the Earth-Moon system on the 31st August, 2011 @ 10:20 UT ±01:06.

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