* Astronomy

Orbital elements:
2009 SO98                                                Earth MOID = 0.0287 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 251.64062              (2000.0)            P               Q
n   0.75164685     Peri.   45.66142     +0.63677107     -0.77059713
a   1.1980092      Node     5.00593     +0.59233453     +0.46687913
e   0.1767302      Incl.   17.68492     +0.49362172     +0.43382478
P   1.31           H   24.5           G   0.15           U   8

MPEC 2009 - S89

The 34 - 76 metre wide asteroid 2009 SO98  will make a close pass (14.5 Lunar Distances, 0.0372 AU), travelling at 10.01 km/s, to the Earth-Moon system on the 28th 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).

2009 SO98 Earth Impact Risk Summary
Torino Scale (maximum) 0 Palermo Scale (maximum) -8.13 Palermo Scale (cumulative) -8.02 Impact Probability (cumulative) 1.4e-09 Number of Potential Impacts 5	Vimpact 18.06 km/s Vinfinity 14.21 km/s H 24.5 Diameter 0.042 km Mass 1.0e+08 kg Energy 4.0e+00 MT all above are mean values weighted by impact probability
Analysis based on 13 observations spanning .06909 days (2009-Sep-24.44211 to 2009-Sep-24.5112)