* Astronomy

Orbital elements:
2011 SK189                                               Earth MOID = 0.1111 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M 348.31851              (2000.0)            P               Q
n   0.42694456     Peri.  355.24860     +0.99774425     -0.03069071
a   1.7467137      Node     7.35443     +0.06573595     +0.62697411
e   0.3633544      Incl.   27.80134     -0.01360840     +0.77843532
P   2.31           H   23.9           G   0.15           U   8

MPEC 2011 - S102

The 44 - 99 metre wide asteroid 2011 SK189 made a close pass (47.4 lunar distances, 0.1219 AU), travelling at 15.35 km/second, to the Earth-Moon system on the 28th September, 2011 @ 13:32 UT ±00:08.

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