* Astronomy

Orbital elements:
2009 SO104                                               Earth MOID = 0.0703 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 304.40837              (2000.0)            P               Q
n   0.66897937     Peri.  341.58868     +0.96882515     +0.24613895
a   1.2947748      Node     4.45830     -0.15606889     +0.69466124
e   0.1766133      Incl.   21.24570     -0.19240668     +0.67591521
P   1.47           H   25.9           G   0.15           U   8

MPEC 2009 - S115

The 17 - 39 metre wide asteroid 2009 SO104 made a close pass (27.9 Lunar Distances, 0.0716 AU), travelling at 11.48 km/s, to the Earth-Moon system on the 26th 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).