* Astronomy

Blobrana · L

RE: Asteroid 2009 XQ2

Blobrana · L

Removed from Earth Impact Risk List.

Blobrana · L

2009 XQ2
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-8.94
Palermo Scale (cumulative)	-8.42
Impact Probability (cumulative)	6.3e-10
Number of Potential Impacts	4

V_impact	29.22 km/s
V_infinity	27.01 km/s
H	24.1
Diameter	0.052 km
Mass	1.9e+08 kg
Energy	1.9e+01 MT
all above are mean values weighted by impact probability

Analysis based on
12 observations spanning .07173 days
(2009-Dec-13.19944 to 2009-Dec-13.27117)

Blobrana · L

The 25 - 55 metre wide asteroid 2009 XQ2 will make a close pass (6.1 lunar distances, 0.0156 AU), travelling at 18.76 km/second, to the Earth-Moon system on the 16th December, 2009.

See more

The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).

-- Edited by Blobrana on Sunday 13th of December 2009 07:41:59 PM

Blobrana · L

Orbital elements:
2009 XQ2                                                 Earth MOID = 0.0155 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M 333.63178              (2000.0)            P               Q
n   0.75961709     Peri.  281.99155     -0.96461997     +0.23700640
a   1.1896144      Node   271.80041     -0.17358008     -0.90061791
e   0.5801661      Incl.    6.63476     -0.19843959     -0.36430119
P   1.30           H   25.2           G   0.15           U   9

MPEC 2009 - X51

-- Edited by Blobrana on Sunday 13th of December 2009 07:27:28 PM