* Astronomy

Orbital elements:
2011 SC108                                               Earth MOID = 0.0023 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M 340.97217              (2000.0)            P               Q
n   0.24902477     Peri.   81.98873     +0.08181746     -0.99662284
a   2.5021174      Node     3.34214     +0.86069508     +0.06712057
e   0.7430486      Incl.    6.88303     +0.50250361     +0.04730475
P   3.96           H   27.9           G   0.15           U   6

MPEC 2011 - S84

The 7 - 16 metre wide asteroid 2011 SC108 made a close pass (1.2 lunar distances, 0.0032 AU), travelling at 20.67 km/second, to the Earth-Moon system on the 27th September, 2011 @ 22:09 UT ±00:01.

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