* Astronomy

Orbital elements:
2011 SN25                                                Earth MOID = 0.0339 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M 328.93903              (2000.0)            P               Q
n   0.44860190     Peri.   59.95768     +0.64127690     -0.76708404
a   1.6900335      Node   350.09002     +0.66152255     +0.56498623
e   0.4501788      Incl.    6.20480     +0.38878251     +0.30392866
P   2.20           H   26.4           G   0.15           U   8

MPEC 2011 - S43

The 14 - 31 metre wide asteroid 2011 SN25 will make a close pass (13.3 lunar distances, 0.0342 AU), travelling at 9.12 km/second, to the Earth-Moon system on the 30th September, 2011 @ 16:10 UT ±00:14.

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