Solar System
Dynamics
Group 		2011 UE305

Asteroid 2011 UE305 was discovered on October 30, 2011 by Mt. Lemmon Survey. It has a diameter of about 150—330 meters.

Older results based on shorter arcs

Number of original observations: 41
Arc : 2011 10 30 - 2011 12 06
Nominal rms: 0″.34 (82 residuals)

Possible collisions in: 2109





Year: 2109


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
 		 20111225

21090713		 2.414734770
1.61
2.426806226		 0.674099596
1.61
0.669285952		 4.7594933
1.60
4.3815120 		304.4370738
-1.17
295.7656963		 52.1565963
1.19
61.7579624		 23.4759374
-1.61
347.4161121		 0″.40

 

Impact date: 2109 07 20.183 (UT)   Vimpact= 19.344 km/sec   Ψimpact = 1°.29  

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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:

2011 UE305 page (NASA JPL) and Impact Risk page NEO Program (NASA JPL)
2011 UE305 page and Impact Risk page at the NEO Dynamic Site (NEODyS)




Solar System Dynamics & Planetology Group, 2011. All rights reserved