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Post Info TOPIC: Asteroid 2009 WM1


L

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RE: Asteroid 2009 WM1
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2009 WM1
Earth Impact Risk Summary
Torino Scale (maximum) 1
Palermo Scale (maximum) -1.24
Palermo Scale (cumulative) -0.95
Impact Probability (cumulative) 1.9e-04
Number of Potential Impacts 116
Vimpact 18.09 km/s
Vinfinity 14.26 km/s
H 20.4
Diameter 0.280 km
Mass 3.1e+10 kg
Energy 1.2e+03 MT
all above are mean values
weighted by impact probability
Analysis based on
49 observations spanning 6.0057 days
(2009-Nov-17.4641 to 2009-Nov-23.4698)



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Posts: 113638
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2009 WM1
Earth Impact Risk Summary
Torino Scale (maximum) 1
Palermo Scale (maximum) -1.33
Palermo Scale (cumulative) -1.05
Impact Probability (cumulative) 1.5e-04
Number of Potential Impacts 103
Vimpact 18.10 km/s
Vinfinity 14.27 km/s
H 20.4
Diameter 0.280 km
Mass 3.1e+10 kg
Energy 1.2e+03 MT
all above are mean values
weighted by impact probability
Analysis based on
46 observations spanning 5.0667 days
(2009-Nov-17.4641 to 2009-Nov-22.53083)



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L

Posts: 113638
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2009 WM1
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -2.12
Palermo Scale (cumulative) -1.69
Impact Probability (cumulative) 4.9e-05
Number of Potential Impacts 87
Vimpact 18.12 km/s
Vinfinity 14.29 km/s
H 20.5
Diameter 0.272 km
Mass 2.8e+10 kg
Energy 1.1e+03 MT
all above are mean values
weighted by impact probability
Analysis based on
33 observations spanning 4.0254 days
(2009-Nov-17.4641 to 2009-Nov-21.4895)



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L

Posts: 113638
Date:
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2009 WM1
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -2.47
Palermo Scale (cumulative) -1.99
Impact Probability (cumulative) 3.0e-05
Number of Potential Impacts 94
Vimpact 18.11 km/s
Vinfinity 14.28 km/s
H 20.5
Diameter 0.272 km
Mass 2.8e+10 kg
Energy 1.1e+03 MT
all above are mean values
weighted by impact probability
Analysis based on
30 observations spanning 3.0170 days
(2009-Nov-17.4641 to 2009-Nov-20.48107)



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L

Posts: 113638
Date:
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2009 WM1
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -2.24
Palermo Scale (cumulative) -1.84
Impact Probability (cumulative) 3.6e-05
Number of Potential Impacts 148
Vimpact 18.13 km/s
Vinfinity 14.30 km/s
H 20.4
Diameter 0.277 km
Mass 2.9e+10 kg
Energy 1.1e+03 MT
all above are mean values
weighted by impact probability
Analysis based on
27 observations spanning 2.0177 days
(2009-Nov-17.4641 to 2009-Nov-19.48183)



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L

Posts: 113638
Date:
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2009 WM1
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -2.41
Palermo Scale (cumulative) -1.65
Impact Probability (cumulative) 5.1e-05
Number of Potential Impacts 989
Vimpact 18.32 km/s
Vinfinity 14.54 km/s
H 20.4
Diameter 0.280 km
Mass 3.0e+10 kg
Energy 1.2e+03 MT
all above are mean values
weighted by impact probability
Analysis based on
25 observations spanning 1.0411 days
(2009-Nov-17.4641 to 2009-Nov-18.50524)


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Orbital elements:
2009 WM1 PHA, Earth MOID = 0.0008 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 49.84341 (2000.0) P Q
n 0.74538592 Peri. 163.60933 +0.69185486 -0.60991002
a 1.2047084 Node 240.55222 +0.60260159 +0.78258974
e 0.1851285 Incl. 26.34593 +0.39775392 -0.12475203
P 1.32 H 20.4 G 0.15 U 8

MPEC 2009 - W30


The 220 - 490 metre wide asteroid 2009 WM1 made a close pass (66.5 Lunar Distances, 0.1709 AU), travelling at 14.89 km/s, to the Earth-Moon system on the  14th November, 2009.

See more

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


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