Solar System
Dynamics
Group 		2009 XO

Asteroid 2009 XO was discovered on December 9, 2009 by OAM, Observatory La Sagra. It has a diameter of about 230—530 meters.

Older results based on shorter arcs

Number of original observations: 222
Arc : 2009 12 09 - 2010 04 04
Nominal rms: 0″.38 (444 residuals)

Possible collision in: 2083





Year: 2083


Orbital elements of impact orbit for two dates (equ. J2000)

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
 
dev/σ
 		 20100104

20830109		 1.855079832
-2.60
1.838687907		 0.543179963
-2.62
0.539463850		 0.3574086
-2.72
0.0866769		 27.6726737
-1.58
290.3869609		 140.6320199
1.48
237.7778834		 342.6400865
-2.58
342.2950019		 0″.38

 

Impact date: 2083 01 16.347 (UT)   Vimpact= 16.461 km/sec   Ψimpact = 36°.93  

dev/σ
Deviation from the nominal orbit parameter divided by the respective uncertainty.
Vimpact
The velocity of the asteroid relative to the Earth at the moment of impact.
Ψimpact
The impact angle is measured from the vertical axis that goes through the impact point. Thus, the impact angle is 0 degrees for a vertical impact.
rms
Root mean square for the derived impact orbit.



External links:

2009 XO page (NASA JPL) and Impact Risk page NEO Program (NASA JPL)
2009 XO page and Impact Risk page at the NEO Dynamic Site (NEODyS)




Solar System Dynamics & Planetology Group, 2008. All rights reserved