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Post Info TOPIC: Asteroid 2009 WJ1


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Date:
Asteroid 2009 WJ1
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Orbital elements:
2009 WJ1 PHA, Earth MOID = 0.0070 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 359.24104 (2000.0) P Q
n 0.21868852 Peri. 193.77398 -0.32129454 -0.94691783
a 2.7284671 Node 274.96809 +0.86985914 -0.29060558
e 0.6995612 Incl. 0.62061 +0.37431924 -0.13745915
P 4.51 H 21.3 G 0.15 U 9

MPEC 2009 - W27


2009 WJ1
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -5.96
Palermo Scale (cumulative) -4.98
Impact Probability (cumulative) 1.5e-07
Number of Potential Impacts 49
Vimpact 16.67 km/s
Vinfinity 12.28 km/s
H 21.2
Diameter 0.190 km
Mass 9.6e+09 kg
Energy 3.2e+02 MT
all above are mean values
weighted by impact probability
Analysis based on
22 observations spanning 1.0820 days
(2009-Nov-17.10881 to 2009-Nov-18.19086)



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