* Astronomy

Blobrana · L

RE: Asteroid 2009 YQ

Blobrana · L

Orbital elements:
2009 YQ                                                  Earth MOID = 0.0702 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M 337.64820              (2000.0)            P               Q
n   0.39934137     Peri.  306.71271     -0.85797620     +0.49476579
a   1.8263045      Node   263.32282     -0.41571346     -0.82673212
e   0.6382049      Incl.    7.99502     -0.30176011     -0.26780742
P   2.47           H   20.6           G   0.15           U   9

MPEC 2009 - Y29

2009 YQ
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-5.64
Palermo Scale (cumulative)	-5.32
Impact Probability (cumulative)	4.2e-09
Number of Potential Impacts	13

V_impact	21.22 km/s
V_infinity	18.04 km/s
H	20.3
Diameter	0.293 km
Mass	3.4e+10 kg
Energy	1.9e+03 MT
all above are mean values weighted by impact probability

Analysis based on
12 observations spanning 1.0671 days
(2009-Dec-18.47637 to 2009-Dec-19.54348)