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Post Info TOPIC: Asteroid 2011 DS


L

Posts: 131433
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RE: Asteroid 2011 DS
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2011 DS
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -7.05
Palermo Scale (cumulative) -6.51
Impact Probability (cumulative) 3.2e-06
Number of Potential Impacts 28
Vimpact 12.94 km/s
Vinfinity 6.57 km/s
H 27.0
Diameter 0.013 km
Mass 3.3e+06 kg
Energy 6.7e-02 MT
all above are mean values
weighted by impact probability
Analysis based on
15 observations spanning .52088 days
(2011-Feb-23.39905 to 2011-Feb-23.91993)



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L

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Object
Name
Close
Approach
Date
Miss
Distance
(AU)
Miss
Distance
(LD)
Estimated
Diameter*
H
(mag)
Relative
Velocity
(km/s)
(2011 DS) 2011-Feb-180.00512.011 m - 24 m27.06.61


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L

Posts: 131433
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Orbital elements:
2011 DS Earth MOID = 0.0014 AU
Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC
M 53.60863 (2000.0) P Q
n 0.92152030 Peri. 66.45279 +0.49679713 -0.86786662
a 1.0458421 Node 353.75885 +0.79498051 +0.45524899
e 0.2303700 Incl. 0.19896 +0.34813588 +0.19888664
P 1.07 H 27.0 G 0.15 U 9
MPEC 2011 - D31

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