* Astronomy

Blobrana · L

Asteroid 2009 WA105

Blobrana · L

Removed from Earth Impact Risk List.

Blobrana · L

Asteroid 2009 WA105 has just passed the Earth.

Blobrana · L

2009 WA105
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-8.63
Palermo Scale (cumulative)	-8.56
Impact Probability (cumulative)	1.7e-09
Number of Potential Impacts	2

V_impact	14.60 km/s
V_infinity	9.44 km/s
H	23.9
Diameter	0.057 km
Mass	2.6e+08 kg
Energy	6.5e+00 MT
all above are mean values weighted by impact probability

Analysis based on
20 observations spanning .23898 days
(2009-Nov-25.15421 to 2009-Nov-25.39319)

Blobrana · L

Orbital elements:
2009 WA105                                               Earth MOID = 0.0433 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M   9.09803              (2000.0)            P               Q
n   0.24881078     Peri.    7.54429     +0.41076449     -0.90396029
a   2.5035518      Node    58.27169     +0.82903871     +0.31606269
e   0.5891653      Incl.    8.03325     +0.37943030     +0.28802808
P   3.96           H   23.9           G   0.15           U   8

MPEC 2009 - W113

The 43 - 97 metre wide asteroid 2009 WA105 will make a close pass (17.9 lunar distances, 0.0459 AU), travelling at 8.29 km/second, to the Earth-Moon system on the 26th November, 2009.

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