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Post Info TOPIC: Asteroid 2010 PM9


L

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RE: Asteroid 2010 PM9
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Removed as an Earth Impact Risk.

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L

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The 310 - 700 metre wide asteroid 2010 PM9 will make a close pass (54.4 lunar distances, 0.1398 AU), travelling at 22.79 km/second, to the Earth-Moon system on the 31st August, 2010 @ 07:27 UT.

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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).


2010 PM9
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -5.56
Palermo Scale (cumulative) -5.11
Impact Probability (cumulative) 1.0e-08
Number of Potential Impacts 38
Vimpact 15.89 km/s
Vinfinity 11.31 km/s
H 19.8
Diameter 0.364 km
Mass 6.6e+10 kg
Energy 2.0e+03 MT
all above are mean values
weighted by impact probability
Analysis based on
7 observations spanning 1.3311 days
(2010-Aug-05.39539 to 2010-Aug-06.72646)



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Orbital elements:
2010 PM9 PHA, Earth MOID = 0.0453 AU
Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC
M 341.17851 (2000.0) P Q
n 0.22268797 Peri. 149.14610 +0.53578205 -0.84055882
a 2.6956999 Node 268.34531 +0.75744127 +0.52033262
e 0.7275857 Incl. 4.58993 +0.37312238 +0.15071443
P 4.43 H 19.6 G 0.15 U 9

MPEC 2010 - P31


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