* Astronomy

Blobrana · L

RE: Asteroid 2010 HV20

Blobrana · L

Removed as an Earth Impact Risk.

Blobrana · L

2010 HV20
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-6.26
Palermo Scale (cumulative)	-6.14
Impact Probability (cumulative)	1.7e-08
Number of Potential Impacts	3

V_impact	27.89 km/s
V_infinity	25.57 km/s
H	21.9
Diameter	0.140 km
Mass	4.1e+09 kg
Energy	3.8e+02 MT
all above are mean values weighted by impact probability

Analysis based on
42 observations spanning 1.1078 days
(2010-Apr-25.36474 to 2010-Apr-26.47256)

Blobrana · L

Orbital elements:
2010 HV20                                                Earth MOID = 0.0904 AU
Epoch 2010 July 23.0 TT = JDT 2455400.5                 MPC
M   8.04397              (2000.0)            P               Q
n   0.22850736     Peri.  215.26843     +0.70690704     +0.69865830
a   2.6497359      Node   100.00579     -0.62050682     +0.68740134
e   0.7915388      Incl.    6.42894     -0.33949038     +0.19838341
P   4.31           H   21.9           G   0.15           U   8

MPEC 2010 - H64

The 110 - 250 metre wide asteroid 2010 HV20 will make a close pass (36.8 lunar distances, 0.0945 AU), travelling at 24.69 km/second, to the Earth-Moon system on the 4th May, 2010.

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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).