* Astronomy

Orbital elements:
2011 QF23                                                Earth MOID = 0.1609 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M   0.75900              (2000.0)            P               Q
n   0.38657582     Peri.  165.50853     +0.84086380     +0.52431929
a   1.8662920      Node   160.96422     -0.52848939     +0.84892302
e   0.3772409      Incl.   24.31625     -0.11682050     -0.06647548
P   2.55           H   19.0           G   0.15           U   8

MPEC 2011 - Q41

The 440 - 990 metre wide asteroid 2011 QF23 will make a close pass (72.7 lunar distances, 0.1867 AU), travelling at 13.97 km/second, to the Earth-Moon system on the 2nd September, 2011 @ 13:32 UT ±09:05.

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