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Post Info TOPIC: Asteroid 2009 SW17
Blobrana


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RE: Asteroid 2009 SW17
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Orbital elements:
2009 SW17                                           PHA, Earth MOID = 0.0432 AU
Epoch 2010 July 23.0 TT = JDT 2455400.5                 MPC
M  82.82159              (2000.0)            P               Q
n   0.34513188     Peri.   41.64449     +0.10171391     -0.98979289
a   2.0128558      Node    42.79974     +0.86948388     +0.03969535
e   0.5985918      Incl.    8.44834     +0.48337569     +0.13687332
P   2.86           H   19.9           G   0.15           U   4

MPEC 2010 - G121

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Blobrana


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The 330 - 730 metre wide asteroid 2009 SW17 will make a close pass (22.1 Lunar Distances, 0.0568 AU), travelling at 17.25 km/s, to the Earth-Moon system on the 13th October, 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 SW17
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -5.09
Palermo Scale (cumulative) -4.67
Impact Probability (cumulative) 3.9e-08
Number of Potential Impacts 30
Vimpact 22.57 km/s
Vinfinity 19.63 km/s
H 19.5
Diameter 0.430 km
Mass 1.1e+11 kg
Energy 6.5e+03 MT
all above are mean values
weighted by impact probability
Analysis based on
17 observations spanning .44189 days
(2009-Sep-21.37881 to 2009-Sep-21.8207)



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Blobrana


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Orbital elements:
2009 SW17                                           PHA, Earth MOID = 0.0410 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 308.46141              (2000.0)            P               Q
n   0.32377240     Peri.   50.90029     +0.05093825     -0.99375840
a   2.1004362      Node    36.55061     +0.85713217     -0.00750123
e   0.6350190      Incl.    9.59303     +0.51257169     +0.11130124
P   3.04           H   19.5           G   0.15           U   9

MPEC 2009 - S65

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