* Astronomy

Orbital elements:
2009 SA                                                  Earth MOID = 0.1451 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 335.94199              (2000.0)            P               Q
n   0.29610390     Peri.  166.91698     +0.96347418     +0.26758141
a   2.2293245      Node   177.48375     -0.26253330     +0.95174176
e   0.4858462      Incl.   14.30624     -0.05285609     +0.15029239
P   3.33           H   24.4           G   0.15           U   8

MPEC 2009 - S03

The 35 - 78 metre wide asteroid 2009 SA made a close pass (56.5 Lunar Distances, 0.1453 AU), travelling at 9.04 km/s, to the Earth-Moon system on the 13th September, 2009.

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