* Astronomy

Blobrana · L

RE: Asteroid 2009 SM98

Blobrana · L

2009 SM98
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-5.82
Palermo Scale (cumulative)	-5.82
Impact Probability (cumulative)	5.0e-08
Number of Potential Impacts	1

V_impact	20.88 km/s
V_infinity	17.65 km/s
H	22.4
Diameter	0.110 km
Mass	2.1e+09 kg
Energy	1.1e+02 MT
all above are mean values weighted by impact probability

Analysis based on
31 observations spanning 4.9607 days
(2009-Sep-24.24446 to 2009-Sep-29.20516)

Blobrana · L

2009 SM98
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-4.36
Palermo Scale (cumulative)	-4.30
Impact Probability (cumulative)	1.8e-06
Number of Potential Impacts	4

V_impact	21.07 km/s
V_infinity	17.88 km/s
H	22.3
Diameter	0.120 km
Mass	2.1e+09 kg
Energy	1.1e+02 MT
all above are mean values weighted by impact probability

Analysis based on
26 observations spanning 2.1401 days
(2009-Sep-24.24446 to 2009-Sep-26.38458)

Blobrana · L

2009 SM98
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-4.32
Palermo Scale (cumulative)	-4.02
Impact Probability (cumulative)	3.2e-06
Number of Potential Impacts	10

V_impact	21.34 km/s
V_infinity	18.20 km/s
H	22.3
Diameter	0.120 km
Mass	2.1e+09 kg
Energy	1.2e+02 MT
all above are mean values weighted by impact probability

Analysis based on
23 observations spanning .72297 days
(2009-Sep-24.24446 to 2009-Sep-24.96743)

Blobrana · L

2009 SM98
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-4.62
Palermo Scale (cumulative)	-4.47
Impact Probability (cumulative)	1.1e-06
Number of Potential Impacts	11

V_impact	21.16 km/s
V_infinity	17.99 km/s
H	22.3
Diameter	0.120 km
Mass	2.2e+09 kg
Energy	1.2e+02 MT
all above are mean values weighted by impact probability

Analysis based on
21 observations spanning .38678 days
(2009-Sep-24.24446 to 2009-Sep-24.63124)

Blobrana · L

Orbital elements:
2009 SM98                                                Earth MOID = 0.0039 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 347.70311              (2000.0)            P               Q
n   0.28673020     Peri.  112.85624     +0.15927718     +0.98679664
a   2.2776506      Node   166.21150     -0.94493765     +0.16100327
e   0.6717342      Incl.    7.08084     -0.28587343     +0.01761665
P   3.44           H   22.3           G   0.15           U   9

MPEC 2009 - S87