* Astronomy

The 20 metre wide asteroid 2007 YM will make a close pass, travelling at 8.04 km/second, to the Earth-Moon system on the 4th December, 2010.

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2007 YM Earth Impact Risk Summary
Torino Scale (maximum) 0 Palermo Scale (maximum) -5.32 Palermo Scale (cumulative) -5.20 Impact Probability (cumulative) 5.8e-06 Number of Potential Impacts 110	Vimpact 13.75 km/s Vinfinity 8.04 km/s H 26.1 Diameter 0.020 km Mass 1.1e+07 kg Energy 2.5e-01 MT all above are mean values weighted by impact probability
Analysis based on 12 observations spanning .12805 days (2007-Dec-17.39661 to 2007-Dec-17.52466)