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Blobrana · L

RE: Asteroid 2009 WZ53

Blobrana · L

2009 WZ53
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-7.43
Palermo Scale (cumulative)	-7.05
Impact Probability (cumulative)	2.6e-08
Number of Potential Impacts	6

V_impact	22.01 km/s
V_infinity	18.98 km/s
H	24.1
Diameter	0.052 km
Mass	1.9e+08 kg
Energy	1.1e+01 MT
all above are mean values weighted by impact probability

Analysis based on
22 observations spanning 2.9471 days
(2009-Nov-23.28123 to 2009-Nov-26.22829)

Blobrana · L

The 37 - 84 metre wide asteroid 2009 WZ53 will make a close pass (69.9 lunar distances, 0.1796 AU), travelling at 16.72 km/second, to the Earth-Moon system on the 29th 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).

Blobrana · L

2009 WZ53
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-5.94
Palermo Scale (cumulative)	-5.78
Impact Probability (cumulative)	9.8e-08
Number of Potential Impacts	66

V_impact	22.02 km/s
V_infinity	18.99 km/s
H	24.1
Diameter	0.051 km
Mass	1.8e+08 kg
Energy	1.0e+01 MT
all above are mean values weighted by impact probability

Analysis based on
18 observations spanning 1.1753 days
(2009-Nov-23.28123 to 2009-Nov-24.45654)

Blobrana · L

Orbital elements:
2009 WZ53                                                Earth MOID = 0.0339 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M 307.25561              (2000.0)            P               Q
n   0.82141389     Peri.  112.59842     -0.87003053     -0.15312086
a   1.1291753      Node    61.59565     -0.16477616     -0.80556046
e   0.2387617      Incl.   32.19163     +0.46464576     -0.57238654
P   1.20           H   24.2           G   0.15           U   9

MPEC 2009 - W87