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Post Info TOPIC: Asteroid 2009 UZ87


L

Posts: 131433
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RE: Asteroid 2009 UZ87
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2009 UZ87
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -8.26
Palermo Scale (cumulative) -7.58
Impact Probability (cumulative) 8.2e-08
Number of Potential Impacts 51
Vimpact 12.28 km/s
Vinfinity 5.16 km/s
H 25.7
Diameter 0.025 km
Mass 2.1e+07 kg
Energy 3.8e-01 MT
all above are mean values
weighted by impact probability
Analysis based on 18 observations spanning .08406 days
(2009-Oct-27.43652 to 2009-Oct-27.52058)



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L

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Orbital elements:
2009 UZ87 Earth MOID = 0.0128 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 197.69970 (2000.0) P Q
n 1.13411696 Peri. 39.94886 -0.20348092 +0.97812993
a 0.9106765 Node 218.36684 -0.91508986 -0.20564997
e 0.1863228 Incl. 3.98146 -0.34814661 -0.03114372
P 0.87 H 25.6 G 0.15 U 9

MPEC 2009 - U122


The 20 - 44 metre wide asteroid 2009 UZ87 made a close pass (8.7 Lunar Distances, 0.0223 AU), travelling at 5.26 km/s, to the Earth-Moon system on the 23rd 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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