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Post Info TOPIC: Asteroid 2010 HP20
Blobrana


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RE: Asteroid 2010 HP20
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The 8 - 18 metre wide asteroid 2010 HP20 made a close pass (0.6 lunar distances, 0.0016 AU), travelling at 10.77 km/second, to the Earth-Moon system on the 18h April, 2010.

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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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2010 HP20
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -7.78
Palermo Scale (cumulative) -6.02
Impact Probability (cumulative) 5.0e-05
Number of Potential Impacts 539
Vimpact 13.16 km/s
Vinfinity 6.92 km/s
H 28.3
Diameter 0.008 km
Mass 6.0e+05 kg
Energy 1.3e-02 MT
all above are mean values
weighted by impact probability
Analysis based on
12 observations spanning .04822 days
(2010-Apr-20.44799 to 2010-Apr-20.49621)



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Blobrana


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Orbital elements:
2010 HP20                                                Earth MOID = 0.0012 AU
Epoch 2010 July 23.0 TT = JDT 2455400.5                 MPC
M  41.48792              (2000.0)            P               Q
n   0.33254349     Peri.  320.92429     -0.98197095     -0.17695141
a   2.0633382      Node   209.08986     +0.18863923     -0.93996737
e   0.5511473      Incl.    7.86070     -0.01217797     -0.29180396
P   2.96           H   27.5           G   0.15           U   6

MPEC 2010 - H46

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