* Astronomy

Blobrana · L

RE: Asteroid 2009 XC2

Blobrana · L

Removed from Earth Impact Risk List.

Blobrana · L

2009 XC2
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-3.17
Palermo Scale (cumulative)	-3.11
Impact Probability (cumulative)	9.3e-09
Number of Potential Impacts	24

V_impact	20.85 km/s
V_infinity	17.63 km/s
H	17.1
Diameter	1.300 km
Mass	3.1e+12 kg
Energy	1.6e+05 MT
all above are mean values weighted by impact probability

Analysis based on
22 observations spanning 1.0548 days
(2009-Dec-11.442 to 2009-Dec-12.49682)

Blobrana · L

Orbital elements:
2009 XC2                                                 Earth MOID = 0.1374 AU
Epoch 2009 Nov. 25.0 TT = JDT 2455160.5                 MPC
M 319.46540              (2000.0)            P               Q
n   0.34711185     Peri.  110.37500     -0.74397795     +0.52169664
a   2.0051941      Node   103.29887     -0.64955990     -0.71122403
e   0.5335107      Incl.   25.40620     +0.15674421     -0.47116133
P   2.84           H   16.9           G   0.15
From 19 observations 2009 Dec. 11-12.

MPEC 2009 - X44

2009 XC2
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-4.53
Palermo Scale (cumulative)	-3.91
Impact Probability (cumulative)	6.1e-09
Number of Potential Impacts	24

V_impact	21.00 km/s
V_infinity	17.80 km/s
H	17.0
Diameter	1.400 km
Mass	3.5e+12 kg
Energy	1.8e+05 MT
all above are mean values weighted by impact probability

Analysis based on
19 observations spanning 1.0548 days
(2009-Dec-11.442 to 2009-Dec-12.49682)