* Astronomy

Blobrana · L

RE: Asteroid 2009 QH6

Blobrana · L

The 77 - 170 metre wide asteroid 2009 QH6 will make a close pass (24.0 Lunar Distances, 0.0616 AU), travelling at 9.58 km/s, to the Earth-Moon system on the 22nd August, 2009.

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

Blobrana · L

2009 QH6
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-5.04
Palermo Scale (cumulative)	-4.83
Impact Probability (cumulative)	1.1e-06
Number of Potential Impacts	67

V_impact	14.35 km/s
V_infinity	9.04 km/s
H	22.7
Diameter	0.098 km
Mass	1.3e+09 kg
Energy	3.1e+01 MT
all above are mean values weighted by impact probability

Analysis based on
33 observations spanning .68393 days
(2009-Aug-19.40403 to 2009-Aug-20.087957)

Blobrana · L

Orbital elements:
2009 QH6                                                 Earth MOID = 0.0025 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 227.24344              (2000.0)            P               Q
n   0.90174362     Peri.  102.87441     +0.37715437     -0.91475673
a   1.0610781      Node   323.87424     +0.72557063     +0.38902217
e   0.1842382      Incl.   14.22037     +0.57558826     +0.10900402
P   1.09           H   22.7           G   0.15           U   9

MPEC 2009 - Q28

2009 QH6
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-4.72
Palermo Scale (cumulative)	-4.32
Impact Probability (cumulative)	3.2e-06
Number of Potential Impacts	171

V_impact	14.34 km/s
V_infinity	9.02 km/s
H	22.7
Diameter	0.096 km
Mass	1.2e+09 kg
Energy	2.9e+01 MT
all above are mean values weighted by impact probability

Analysis based on
20 observations spanning .53698 days
(2009-Aug-19.40403 to 2009-Aug-19.94101)

Source