* Astronomy

Orbital elements:
2011 SR12                                                Earth MOID = 0.1406 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M  29.39837              (2000.0)            P               Q
n   0.39088899     Peri.   22.70842     -0.66897561     +0.73897284
a   1.8525379      Node   205.52573     -0.70726483     -0.66593980
e   0.7674748      Incl.   10.69126     -0.22857840     -0.10219257
P   2.52           H   19.7           G   0.15           U   9

MPEC 2011 - S20

The 180 - 390 metre wide asteroid 2011 SQ12 will make a close pass (37.4 lunar distances, 0.0961 AU), travelling at 8.97 km/second, to the Earth-Moon system on the 14th October, 2011 @ 08:15 UT ±01:29.

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