* Astronomy

Blobrana · L

RE: Asteroid 2009 TH8

Blobrana · L

The 29 m - 65 metre wide asteroid 2009 TH8 will make a close pass (4.5 Lunar Distances, 0.0116 AU), travelling at 13.10 km/s, to the Earth-Moon system on the 19th October, 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 TH8
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-5.33
Palermo Scale (cumulative)	-5.17
Impact Probability (cumulative)	8.7e-06
Number of Potential Impacts	6

V_impact	17.13 km/s
V_infinity	13.02 km/s
H	24.8
Diameter	0.037 km
Mass	7.0e+07 kg
Energy	2.5e+00 MT
all above are mean values weighted by impact probability

Analysis based on
16 observations spanning 1.0434 days
(2009-Oct-14.54405 to 2009-Oct-15.58745)

Blobrana · L

Orbital elements:
2009 TH8                                                 Earth MOID = 0.0088 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M  13.01365              (2000.0)            P               Q
n   0.33837583     Peri.   49.72681     +0.16077221     -0.98599667
a   2.0395600      Node    31.10575     +0.87752807     +0.12225104
e   0.5915167      Incl.    4.91962     +0.45177073     +0.11342511
P   2.91           H   24.8           G   0.15           U   7

MPEC 2009 - T62