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Blobrana · L

Asteroid 2011 DX4

Blobrana · L

2011 DX4
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-7.68
Palermo Scale (cumulative)	-7.36
Impact Probability (cumulative)	9.8e-08
Number of Potential Impacts	43

V_impact	20.33 km/s
V_infinity	17.00 km/s
H	26.6
Diameter	0.016 km
Mass	5.6e+06 kg
Energy	2.8e-01 MT
all above are mean values weighted by impact probability

Analysis based on
12 observations spanning .17442 days
(2011-Feb-25.19028 to 2011-Feb-25.3647)

Blobrana · L

Orbital elements:
2011 DX4                                                 Earth MOID = 0.0019 AU
Epoch 2011 Feb. 8.0 TT = JDT 2455600.5                  MPC
M  11.68081              (2000.0)            P               Q
n   0.35302848     Peri.  107.39787     +0.32524847     -0.94556750
a   1.9827268      Node   323.61587     +0.86057416     +0.30068634
e   0.6614965      Incl.    1.03827     +0.39195095     +0.12445815
P   2.79           H   26.4           G   0.15           U   9

MPEC 2011 - D39

Object Name	Close Approach Date	Miss Distance (AU)	Miss Distance (LD)	Estimated Diameter*	H (mag)	Relative Velocity (km/s)
(2011 DX4)	2011-Feb-20	0.0206	8.0	14 m - 31 m	26.4	18.65