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TOPIC: Asteroid 2009 OF
Blobrana


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RE: Asteroid 2009 OF
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2009 OF
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -4.11
Palermo Scale (cumulative) -4.11
Impact Probability (cumulative) 7.8e-07
Number of Potential Impacts 1
Vimpact 16.68 km/s
Vinfinity 12.41 km/s
H 21.3
Diameter 0.180 km
Mass 8.5e+09 kg
Energy 2.8e+02 MT
all above are mean values
weighted by impact probability
Analysis based on
87 observations spanning 7.0313 days
(2009-Jul-17.21281 to 2009-Jul-24.24407)



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Blobrana


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The 150 - 330 metre wide asteroid 2009 OF will make a close pass (15.5 Lunar Distances, 0.0399 AU), travelling at 10.97 km/s, to the Earth-Moon system on the 8th August, 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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Posts: 131433
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2009 OF
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -3.68
Palermo Scale (cumulative) -3.68
Impact Probability (cumulative) 2.0e-06
Number of Potential Impacts 1
Vimpact 16.68 km/s
Vinfinity 12.41 km/s
H 21.3
Diameter 0.190 km
Mass 8.9e+09 kg
Energy 2.9e+02 MT
all above are mean values
weighted by impact probability
Analysis based on
67 observations spanning 4.6830 days
(2009-Jul-17.21281 to 2009-Jul-21.89584)



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Blobrana


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Posts: 131433
Date:
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2009 OF
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -3.69
Palermo Scale (cumulative) -3.59
Impact Probability (cumulative) 2.2e-06
Number of Potential Impacts 2
Vimpact 16.68 km/s
Vinfinity 12.41 km/s
H 21.2
Diameter 0.190 km
Mass 1.0e+10 kg
Energy 3.3e+02 MT
all above are mean values
weighted by impact probability
Analysis based on
25 observations spanning 2.7231 days
(2009-Jul-17.21281 to 2009-Jul-19.93588)



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Blobrana


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Posts: 131433
Date:
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2009 OF
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -3.82
Palermo Scale (cumulative) -3.53
Impact Probability (cumulative) 2.5e-06
Number of Potential Impacts 2
Vimpact 16.69 km/s
Vinfinity 12.42 km/s
H 21.2
Diameter 0.200 km
Mass 1.0e+10 kg
Energy 3.4e+02 MT
all above are mean values
weighted by impact probability
Analysis based on
22 observations spanning 2.0005 days
(2009-Jul-17.21281 to 2009-Jul-19.21328)



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Blobrana


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Orbital elements:
2009 OF                                             PHA, Earth MOID = 0.0092 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 340.77790              (2000.0)            P               Q
n   0.25685499     Peri.  217.83555     +0.95789606     +0.25472852
a   2.4510041      Node   126.88940     -0.20596639     +0.93109533
e   0.6126583      Incl.    9.53388     -0.20003243     +0.26110317
P   3.84           H   21.1           G   0.15           U   9

MPEC 2009 - O07

2009 OF
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -4.44
Palermo Scale (cumulative) -4.31
Impact Probability (cumulative) 3.8e-07
Number of Potential Impacts 3
Vimpact 16.68 km/s
Vinfinity 12.42 km/s
H 21.1
Diameter 0.200 km
Mass 1.1e+10 kg
Energy 3.8e+02 MT
all above are mean values
weighted by impact probability
Analysis based on
17 observations spanning 1.0448 days
(2009-Jul-17.21281 to 2009-Jul-18.25762)

Source

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