* Astronomy

Blobrana · L

RE: Asteroid 2009 WQ25

Blobrana · L

2009 WQ25
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-6.60
Palermo Scale (cumulative)	-6.35
Impact Probability (cumulative)	1.1e-07
Number of Potential Impacts	3

V_impact	20.81 km/s
V_infinity	17.57 km/s
H	23.9
Diameter	0.055 km
Mass	2.3e+08 kg
Energy	1.2e+01 MT
all above are mean values weighted by impact probability

Analysis based on
26 observations spanning 3.9900 days
(2009-Nov-21.16281 to 2009-Nov-25.15286)

Blobrana · L

2009 WQ25
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-6.80
Palermo Scale (cumulative)	-6.53
Impact Probability (cumulative)	1.0e-07
Number of Potential Impacts	2

V_impact	20.30 km/s
V_infinity	16.97 km/s
H	23.9
Diameter	0.055 km
Mass	2.3e+08 kg
Energy	1.1e+01 MT
all above are mean values weighted by impact probability

Analysis based on
24 observations spanning 2.9289 days
(2009-Nov-21.16281 to 2009-Nov-24.0917)

Blobrana · L

2009 WQ25
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-9.38
Palermo Scale (cumulative)	-9.38
Impact Probability (cumulative)	1.2e-10
Number of Potential Impacts	1

V_impact	22.78 km/s
V_infinity	19.87 km/s
H	24.0
Diameter	0.054 km
Mass	2.1e+08 kg
Energy	1.3e+01 MT
all above are mean values weighted by impact probability

Analysis based on
21 observations spanning 1.0821 days
(2009-Nov-21.16281 to 2009-Nov-22.24493)

Blobrana · L

Orbital elements:
2009 WQ25                                                Earth MOID = 0.0009 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M  25.75092              (2000.0)            P               Q
n   0.25923611     Peri.  286.16303     +0.87236065     +0.48581164
a   2.4359725      Node    44.80986     -0.41374605     +0.79312582
e   0.7134620      Incl.    4.43797     -0.26038644     +0.36733975
P   3.80           H   23.9           G   0.15           U   9

MPEC 2009 - W66