* Astronomy

Orbital elements:
2011 QE23                                                Earth MOID = 0.0182 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M  13.36858              (2000.0)            P               Q
n   0.56943490     Peri.  314.38345     +0.61201494     +0.79083494
a   1.4415841      Node   353.34791     -0.71483620     +0.55090202
e   0.3015844      Incl.    2.08800     -0.33830005     +0.26662157
P   1.73           H   25.6           G   0.15           U   6

MPEC 2011 - Q40

The 20 - 44 metre wide asteroid 2011 QE23 made a close pass (7.6 lunar distances, 0.0194 AU), travelling at 5.21 km/second, to the Earth-Moon system on the 22nd August, 2011 @ 08:35 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).