* Astronomy

Orbital elements:
2009 SN                                             PHA, Earth MOID = 0.0114 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 293.29177              (2000.0)            P               Q
n   0.57245894     Peri.   37.58513     +0.90864588     -0.40033739
a   1.4365028      Node   344.63040     +0.18107293     +0.63393902
e   0.3258982      Incl.   26.60879     +0.37626488     +0.66170333
P   1.72           H   21.6           G   0.15           U   9

MPEC 2009 - S25

The 130 - 290 metre wide asteroid 2009 SN made a close pass (17.9 Lunar Distances, 0.0461 AU), travelling at 15.23 km/s, to the Earth-Moon system on the 10th 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).