* Astronomy

Orbital elements:
2011 SS25                                                Earth MOID = 0.0906 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M 316.70305              (2000.0)            P               Q
n   0.44673608     Peri.  108.49397     -0.55705467     -0.81336684
a   1.6947359      Node    18.54708     +0.40948257     -0.44469116
e   0.6768409      Incl.   31.81854     +0.72250545     -0.37507885
P   2.21           H   17.9           G   0.15           U   9

MPEC 2011 - S48

The 710 - 1600 metre wide asteroid 2011 SS25 will make a close pass (70.2 lunar distances, 0.1803 AU), travelling at 29.90 km/second, to the Earth-Moon system on the 13th October, 2011 @ 03:30 UT ±21:02.

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