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Post Info TOPIC: Asteroid 2009 ST103


L

Posts: 131433
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RE: Asteroid 2009 ST103
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2009 ST103
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -4.40
Palermo Scale (cumulative) -3.55
Impact Probability (cumulative) 1.2e-07
Number of Potential Impacts 34
Vimpact 21.38 km/s
Vinfinity 18.24 km/s
H 17.9
Diameter 0.898 km
Mass 9.9e+11 kg
Energy 5.4e+04 MT
all above are mean values
weighted by impact probability
Analysis based on
30 observations spanning 1.7495 days
(2009-Sep-26.12896 to 2009-Sep-27.87849)



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L

Posts: 131433
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Orbital elements:
2009 ST103 PHA, Earth MOID = 0.0457 AU
Epoch 2009 Sept. 26.0 TT = JDT 2455100.5 MPC
M 335.97873 (2000.0) P Q
n 0.24766704 Peri. 232.94529 -0.16616510 -0.96591876
a 2.5112536 Node 227.87624 +0.96820283 -0.12164150
e 0.6971795 Incl. 15.52079 +0.18700921 -0.22848257
P 3.98 H 18.0 G 0.15
From 22 observations 2009 Sept. 26-26.

MPEC 2009 - S106


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