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TOPIC: Asteroid 2009 CR4
Blobrana


L

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RE: Asteroid 2009 CR4
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The 120 - 280 metre wide asteroid 2009 CR4 is to make a close pass (36.5 Lunar Distances, 0.0939 AU), travelling at 6.39 km/s, to the Earth-Moon system on the 9th May, 2009.

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

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Blobrana


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2009 CR4
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -8.42
Palermo Scale (cumulative) -8.42
Impact Probability (cumulative) 1.1e-10
Number of Potential Impacts 1
Vimpact 16.70 km/s
Vinfinity 12.44 km/s
H 21.8
Diameter 0.150 km
Mass 4.4e+09 kg
Energy 1.5e+02 MT
all above are mean values
weighted by impact probability
Analysis based on
12 observations spanning .68389 days
(2009-Feb-13.1142 to 2009-Feb-13.79809)

Source

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Blobrana


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Asteroid 2009 CR4 = SW40fq (NEOCPO)
Orbital elements:
2009 CR4                                                 Earth MOID = 0.0800 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5                 MPC
M 290.52690              (2000.0)            P               Q
n   0.47335020     Peri.  243.84269     -0.87432227     +0.48297082
a   1.6306009      Node   324.97904     -0.41011053     -0.78801600
e   0.3626513      Incl.    4.79348     -0.25955715     -0.38179833
P   2.08           H   21.7           G   0.15           U   9
MPEC 2009 -C82

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