Solar System
Dynamics
Group 		(144898) 2004 VD17
older result



Number of original observations: 974
Arc : 2002 02 16 - 2009 01 03
Nominal rms: 0″.25 (1914 residuals)

Possible collisions in: 2102, 2104





Year: 2102


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
 		 20090109

21020427		 1.508111190
17.97
1.502345249		 0.588824053
-16.89
0.588037804		 4.2227689
3.31
4.2296208		 224.2245174
6.42
222.5131803		 90.7112747
-0.29
92.5438011		 120.4630185
-18.33
327.7254525		 0″.28

 

Impact date: 2102 05 04.891(UT)   Vimpact= 21.630 km/sec   Ψimpact = 26°.86  

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.


Year: 2104


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
 		 20090109

21040427		 1.508111187
18.13
1.587192745		 0.588824027
-14.72
0.598451391		 4.2227653
5.14
4.1978695		 224.2244737
11.58
222.4801399		 90.7113266
-6.40
89.0973898		 120.4630160
-18.17
331.1141867		 0″.28

 

Impact date: 2104 05 04.371(UT)   Vimpact= 21.622 km/sec   Ψimpact = 26°.84  


External links:

2004 VD17 page (NASA JPL) and Impact Risk page NEO Program (NASA JPL)
2004 VD17 page and Impact Risk page at the NEO Dynamic Site (NEODyS)





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