* Astronomy

Orbital elements:
2011 SF3                                                 Earth MOID = 0.0914 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M 351.61073              (2000.0)            P               Q
n   0.22134698     Peri.  198.56565     +0.99370660     -0.10563299
a   2.7065766      Node   167.32390     +0.11151261     +0.96435180
e   0.5986923      Incl.    9.77796     -0.01058910     +0.24262581
P   4.45           H   20.6           G   0.15           U   6

MPEC 2011 - S06

The 200 - 440 metre wide asteroid 2011 SF3 will make a close pass (51.0 lunar distances, 0.1312 AU), travelling at 8.69 km/second, to the Earth-Moon system on the 2nd October, 2011 @ 00:14 UT ±02:45.

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