Solar System
Dynamics
Group 		2009 TD17

Asteroid 2009 TD17 was discovered on October 9, 2009 by the Catalina Sky Survey. This object has a diameter less than 10 meters.

Number of original observations: 19
Arc : 2009 10 09 - 2009 10 11
Nominal rms: 0″.49 (37 residuals) (NASA)

Possible collisions in: 2047a, 2047b, 2049, 2055, 2057, 2064, 2070a, 2070b, 2070c





Year: 2047a


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20100104
20471008		 1.127073617
1.102048309		 0.219912492
0.214603459		 0.0778493
0.0360818		 219.1991132
199.9627430		 82.0892694
106.1934697		 122.9948333
46.1677965		 0″.61
 

Impact date: 2047 10 15.568 (UT)   Vimpact= 13.364 km/sec   Ψimpact = 21°.21  

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: 2047b


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20100104
20471008		 1.127411640
1.102066087		 0.220378379
0.214998499		 0.0777166
0.0397190		 219.2679633
202.9260878		 82.0069186
103.2225274		 122.9277220
46.1334872		 0″.69
 

Impact date: 2047 10 15.635 (UT)   Vimpact= 13.265 km/sec   Ψimpact = 50°.13  

Year: 2049


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20100104
20491008		 1.126783917
1.097715969		 0.219574659
0.213480624		 0.0777032
0.0322612		 219.2103414
196.8300255		 82.0791570
110.2154584		 123.0549598
45.8762754		 0″.58
 

Impact date: 2049 10 16.755 (UT)   Vimpact= 13.288 km/sec   Ψimpact = 7°.68  

Year: 2055


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20100104
20551010		 1.127416735
1.097924625		 0.220383522
0.214216637		 0.0777305
0.0274467		 219.2639991
187.3049923		 82.0109938
119.6695877		 122.9266351
47.1125157		 0″.69
 

Impact date: 2055 10 17.332 (UT)   Vimpact= 12.912 km/sec   Ψimpact = 55°.24  

Year: 2057


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20100104
20571010		 1.126784400
1.096386391		 0.219592834
0.213289563		 0.0776338
0.0287642		 219.2290114
189.3789652		 82.0574978
117.9199805		 123.0555938
47.3310786		 0″.58
 

Impact date: 2057 10 17.343 (UT)   Vimpact= 12.992 km/sec   Ψimpact = 45°.22  

Year: 2064


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20100104
20641009		 1.126780661
1.099270758		 0.219666867
0.213879731		 0.0773204
0.0395830		 219.3130347
199.1480799		 81.9602149
107.5718354		 123.0596187
47.1250932		 0″.60
 

Impact date: 2064 10 15.989 (UT)   Vimpact= 13.374 km/sec   Ψimpact = 17°.99  

Year: 2070a


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20100104
20701009		 1.127070192
1.099234958		 0.219970452
0.214018215		 0.0776046
0.0309096		 219.2643430
187.2356166		 82.0135457
119.4194604		 122.9981232
46.7079624		 0″.59
 

Impact date: 2070 10 16.512 (UT)   Vimpact= 12.948 km/sec   Ψimpact = 51°.15  

Year: 2070b


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20100104
20701009		 1.127415131
1.099231400		 0.220382537
0.214352126		 0.0777342
0.0341403		 219.2625616
191.6674696		 82.0122815
114.9974842		 122.9270095
46.6645191		 0″.68
 

Impact date: 2070 10 16.580 (UT)   Vimpact= 13.176 km/sec   Ψimpact = 26°.15  

Year: 2070c


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20100104
20701009		 1.127415852
1.100647265		 0.220410321
0.214723629		 0.0776386
0.0301438		 219.2884935
187.6478555		 81.9817098
119.5230112		 122.9280369
46.2104970		 0″.68
 

Impact date: 2070 10 16.775 (UT)   Vimpact= 13.001 km/sec   Ψimpact = 45°.92  




External links:

2009 TD17 page (NASA JPL) and Impact Risk page NEO Program (NASA JPL)
2009 TD17 page and Impact Risk page at the NEO Dynamic Site (NEODyS)




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