* Astronomy

Blobrana · L

RE: Asteroid 2009 KM

Blobrana · L

2009 KM
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-4.01
Palermo Scale (cumulative)	-4.01
Impact Probability (cumulative)	2.9e-07
Number of Potential Impacts	1

V_impact	29.55 km/s
V_infinity	27.37 km/s
H	20.1
Diameter	0.320 km
Mass	4.3e+10 kg
Energy	4.5e+03 MT
all above are mean values weighted by impact probability

Analysis based on
44 observations spanning 4.9258 days
(2009-May-17.26047 to 2009-May-22.18624)

Blobrana · L

2009 KM
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-4.05
Palermo Scale (cumulative)	-4.04
Impact Probability (cumulative)	2.8e-07
Number of Potential Impacts	2

V_impact	29.54 km/s
V_infinity	27.36 km/s
H	20.2
Diameter	0.310 km
Mass	4.1e+10 kg
Energy	4.2e+03 MT
all above are mean values weighted by impact probability

Analysis based on
38 observations spanning 2.9428 days
(2009-May-17.26047 to 2009-May-20.20324)

Blobrana · L

2009 KM
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-6.39
Palermo Scale (cumulative)	-6.00
Impact Probability (cumulative)	2.3e-09
Number of Potential Impacts	5

V_impact	28.01 km/s
V_infinity	25.69 km/s
H	20.1
Diameter	0.325 km
Mass	4.7e+10 kg
Energy	4.4e+03 MT
all above are mean values weighted by impact probability

Analysis based on
31 observations spanning 1.9207 days
(2009-May-17.26047 to 2009-May-19.181122)

Blobrana · L

2009 KM
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-5.22
Palermo Scale (cumulative)	-4.62
Impact Probability (cumulative)	7.2e-08
Number of Potential Impacts	32

V_impact	28.52 km/s
V_infinity	26.25 km/s
H	20.2
Diameter	0.314 km
Mass	4.3e+10 kg
Energy	4.1e+03 MT
all above are mean values weighted by impact probability

Analysis based on
27 observations spanning 1.0733 days
(2009-May-17.26047 to 2009-May-18.33374)

Source

Blobrana · L

Orbital elements:
2009 KM                                                  Earth MOID = 0.1050 AU
Epoch 2009 May 9.0 TT = JDT 2454960.5                   MPC
M 344.10755              (2000.0)            P               Q
n   0.23338635     Peri.  227.31679     +0.88021323     +0.44590984
a   2.6126772      Node   105.60127     -0.37097683     +0.85997256
e   0.8002978      Incl.    9.70999     -0.29597444     +0.24821686
P   4.22           H   20.2           G   0.15
From 27 observations 2009 May 17-18.

MPEC 2009 - K10