Solar System
Dynamics
Group 		2011 GN44
older result

Asteroid 2011 GN44 was discovered on April 3, 2011 by the Pan-STARRS 1, Haleakala. This object has a diameter 0.7 - 1.5 kilometers.

Number of original observations: 60
Arc : 2011 04 03 - 2011 05 07
Nominal rms: 0″.30 (120 residuals)

Possible collisions in: 2068





Year: 2068


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
 		 20110608

20681003		 2.236027520
13.38
2.236094321		 0.599331356
10.41
0.592845599		 54.7633815
13.52
54.9549550		 16.9199386
13.54
16.5875611		 319.5301700
-13.33
319.6841879		 316.4482312
12.28
6.7700055		 0″.48

 

Impact date: 2068 10 10.015 (UT)   Vimpact= 34.080 km/sec   Ψimpact =0°.24  

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.



Oldest results



Number of original observations: 32
Arc : 2011 04 03 - 2011 04 13
Nominal rms: 0″.57 (64 residuals)

Possible collisions in: 2035





Year: 2035


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
 		 20110208

20351003		 2.264566151
-1.62
2.264215332		 0.601829246
-1.52
0.599339394		 55.4961620
-1.62
55.5750960		 17.0471557
-1.61
16.9088259		 319.0155347
1.61
319.0878843		 282.4326157
-1.59
6.4779907		 0″.59

 

Impact date: 2035 10 10.884 (UT)   Vimpact= 34.377 km/sec   Ψimpact = 30°.43  

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 GN44 page (NASA JPL) and Impact Risk page NEO Program (NASA JPL)
2011 GN44 page and Impact Risk page at the NEO Dynamic Site (NEODyS)




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