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Blobrana · L

RE: Asteroid 2009 SB

Blobrana · L

2009 SB
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-4.36
Palermo Scale (cumulative)	-4.28
Impact Probability (cumulative)	1.7e-07
Number of Potential Impacts	6

V_impact	28.74 km/s
V_infinity	26.49 km/s
H	20.4
Diameter	0.281 km
Mass	3.1e+10 kg
Energy	3.0e+03 MT
all above are mean values weighted by impact probability

Analysis based on
27 observations spanning 4.9026 days
(2009-Sep-16.24433 to 2009-Sep-21.14696)

Blobrana · L

2009 SB
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-4.89
Palermo Scale (cumulative)	-4.08
Impact Probability (cumulative)	1.9e-07
Number of Potential Impacts	82

V_impact	25.26 km/s
V_infinity	22.62 km/s
H	20.8
Diameter	0.233 km
Mass	2.0e+10 kg
Energy	1.9e+03 MT
all above are mean values weighted by impact probability

Analysis based on
21 observations spanning 2.1760 days
(2009-Sep-16.24433 to 2009-Sep-18.42036)

Blobrana · L

2009 SB
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-4.80
Palermo Scale (cumulative)	-4.04
Impact Probability (cumulative)	2.4e-07
Number of Potential Impacts	253

V_impact	21.24 km/s
V_infinity	18.05 km/s
H	21.0
Diameter	0.218 km
Mass	1.4e+10 kg
Energy	8.1e+02 MT
all above are mean values weighted by impact probability

Analysis based on
18 observations spanning 1.0765 days
(2009-Sep-16.24433 to 2009-Sep-17.3208)

Blobrana · L

Orbital elements:
2009 SB                                             PHA, Earth MOID = 0.0310 AU
Epoch 2009 Sept. 6.0 TT = JDT 2455080.5                 MPC
M 329.33194              (2000.0)            P               Q
n   0.26354100     Peri.  272.66258     -0.63639236     -0.76898589
a   2.4093723      Node   217.08719     +0.74159989     -0.58835445
e   0.8424490      Incl.    5.76210     +0.21221303     -0.24999949
P   3.74           H   20.3           G   0.15
From 18 observations 2009 Sept. 16-17.

MPEC 2009 - S05