Solar System
Dynamics
Group 		2009 SH1

Asteroid 2009 SH1 was discovered on September 18, 2009 by the Mount Lemmon Survey four days after it had passed about 875000 kilometers from the Earth. This object has a diameter less than 10 meters.

Number of original observations: 12
Arc : 2009 09 18.211 - 2009 09 18.391
Nominal rms: 0″.59 (23 residuals) (NASA)

Possible collisions in: 2062, 2074, 2082, 2084, 2088, 2090, 2106





Year: 2062


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20090926
20620908		 1.114841229
1.115391803		 0.166032527
0.166782861		 2.0962828
2.0297822		 354.9326801
351.8488181		 294.3174608
297.8265908		 56.0175668
40.1938170		 1″.06
 

Impact date: 2062 09 15.021 (UT)   Vimpact= 12.109 km/sec   Ψimpact = 39°.44  

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: 2074


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20090926
20740908		 1.118795001
1.118110166		 0.170453196
0.170657581		 2.1645661
2.1149477		 354.9334143
352.8123604		 294.3226149
297.6354980		 55.5631201
39.1396236		 1″.07
 

Impact date: 2074 09 16.057 (UT)   Vimpact= 12.159 km/sec   Ψimpact = 57°.60  

Year: 2082


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20090926
20820908		 1.116340509
1.109818390		 0.166327389
0.164490746		 2.1221994
2.0761784		 354.9324586
351.7085631		 294.7209077
296.4812549		 55.6372809
41.4819256		 1″.02
 

Impact date: 2082 09 15.049 (UT)   Vimpact= 12.140 km/sec   Ψimpact = 18°.04  

Year: 2084


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20090926
20840908		 1.108405219
1.111949054		 0.158681955
0.160523558		 1.9823764
1.9452721		 354.9311357
351.4728161		 294.3143904
298.4864092		 56.7714542
40.8079781		 1″.15
 

Impact date: 2084 09 14.224 (UT)   Vimpact= 12.038 km/sec   Ψimpact = 56°.53  

Year: 2088


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20090926
20880908		 1.116520361
1.115356137		 0.167919622
0.168074213		 2.1253676
2.0594424		 354.9329594
351.3543888		 294.3186476
297.4726419		 55.8243073
41.0667352		 1″.05
 

Impact date: 2088 09 14.317 (UT)   Vimpact= 12.289 km/sec   Ψimpact = 7°.41  

Year: 2090


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20090926
20900908		 1.108425122
1.114914349		 0.158701389
0.161455667		 1.9827311
1.9405639		 354.9311304
351.7522556		 294.3157179
299.4341582		 56.7683190
39.2669544		 1″.19
 

Impact date: 2090 09 15.112 (UT)   Vimpact= 12.055 km/sec   Ψimpact = 28°.37  

Year: 2106


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

Epoch [TT] a [AU] e i [deg] Ω [deg] ω [deg] M [deg] rms
20090926
21060910		 1.118826021
1.121214094		 0.170488997
0.171762528		 2.1650085
2.1102083		 354.9332707
352.3984094		 294.3209834
298.5738510		 55.5609604
39.3117359		 1″.02
 

Impact date: 2106 09 17.015 (UT)   Vimpact= 12.381 km/sec   Ψimpact = 16°.23  




External links:

2009 SH1 page (NASA JPL) and Impact Risk page NEO Program (NASA JPL)
2009 SH1 page and Impact Risk page at the NEO Dynamic Site (NEODyS)




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