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Post Info TOPIC: Asteroid 2009 QL8


L

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RE: Asteroid 2009 QL8
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The 360 - 790 metre wide asteroid 2009 QL8 will make a close pass (31.4 Lunar Distances, 0.0807 AU), travelling at 12.11 km/s, to the Earth-Moon system on the 6th 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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L

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2009 QL8
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -4.68
Palermo Scale (cumulative) -3.92
Impact Probability (cumulative) 9.6e-08
Number of Potential Impacts 133
Vimpact 15.75 km/s
Vinfinity 11.13 km/s
H 19.0
Diameter 0.528 km
Mass 2.0e+11 kg
Energy 5.9e+03 MT
all above are mean values
weighted by impact probability
Analysis based on
25 observations spanning 1.6541 days
(2009-Aug-20.39152 to 2009-Aug-22.04558)


<param NAME="Name" VALUE="(2009 QL8)">
<param NAME="Eqnx" VALUE="2000.0">

<param NAME="Epoch" VALUE="20090821.0">
<param NAME="e" VALUE=".5357927006797882">
<param NAME="Incl" VALUE="4.212151405551034">
<param NAME="Peri" VALUE="339.4169987120832">
<param NAME="Node" VALUE="84.5509103057489">
<param NAME="M" VALUE="329.1924408144331">
<param NAME="a" VALUE="1.912626479165613">



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L

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Orbital elements:
2009 QL8 Earth MOID = 0.0504 AU
Epoch 2009 Aug. 17.0 TT = JDT 2455060.5 MPC
M 327.35840 (2000.0) P Q
n 0.37970015 Peri. 352.80965 +0.36965055 -0.92676124
a 1.8887546 Node 75.47844 +0.85590008 +0.31160551
e 0.5601141 Incl. 3.96118 +0.36165388 +0.20979899
P 2.60 H 19.4 G 0.15
From 24 observations 2009 Aug. 20-21.

MPEC 2009 - Q36


2009 QL8
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -5.63
Palermo Scale (cumulative) -5.15
Impact Probability (cumulative) 6.0e-09
Number of Potential Impacts 18
Vimpact 24.92 km/s
Vinfinity 22.10 km/s
H 19.5
Diameter 0.434 km
Mass 1.1e+11 kg
Energy 8.3e+03 MT
all above are mean values
weighted by impact probability
Analysis based on
22 observations spanning .67040 days
(2009-Aug-20.39152 to 2009-Aug-21.06192)



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