* Astronomy

153814 2001 WN5 Earth Impact Risk Summary
Torino Scale (maximum) n/a Palermo Scale (maximum) -1.18 Palermo Scale (cumulative) -1.18 Impact Probability (cumulative) 1.0e-04 Number of Potential Impacts 1	Vimpact 15.05 km/s Vinfinity 10.12 km/s H 18.2 Diameter 0.780 km Mass 6.4e+11 kg Energy 1.7e+04 MT all above are mean values weighted by impact probability
Analysis based on 119 observations spanning 5115.1 days (1996-Feb-10.39593 to 2010-Feb-11.48277)

Asteroid (153814) 2001 WN5
Minimum distance: 0.1073 AU
Date of closest approach: 2010-10-10 04:48:00 UT
Date of maximum brightness: 2010-10-11 17:00:00 UT
Maximum brightness at closest approach: 15.9 V.
Maximum angular velocity: 10.37"/min
maximum date and time the angular velocity: 2010-10-10 11:00:00 UT
Absolute brightness: 18.3

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