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351431 (2005 GR122)
Classification: Main-belt Asteroid          SPK-ID: 2351431
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262000643258744 5.395e-08  
a 2.643272101328565 3.0473e-08 au
q 2.309690992110111 1.4452e-07 au
i 8.334932803112844 7.1661e-06 deg
node 354.4775710019434 4.8258e-05 deg
peri 49.39103433001767 5.7612e-05 deg
M 316.6805956167984 3.5996e-05 deg
tp 2459189.382277650438
(2020-Dec-05.88227765)
0.00015863 TDB
period 1569.680398942098
4.30
2.7144e-05
7.432e-08
d
yr
n .2293460504715646 3.9661e-09 deg/d
Q 2.97685321054702 3.4319e-08 au
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      6097 days (16.69 yr)  
   first obs. used      2003-11-19  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62201  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 21:53:48  

Additional Information
 Earth MOID = 1.32738 au 
 Jupiter MOID = 2.46264 au 
 T_jup = 3.368 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456667.5 (2014-Jan-10.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .128482653255549 5.4251e-08  
q 2.303021401005911 1.4567e-07 au
tp 2456045.304604394240
(2012-Apr-27.80460439)
0.00013384 TDB
node 354.7023665388459 4.8189e-05 deg
peri 48.32859895169926 5.7168e-05 deg
i 8.344911289950275 7.1673e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      6097 days (16.69 yr)  
   first obs. used      2003-11-19  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62201  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 21:53:48  

Additional Information
 Jupiter MOID = 2.46264 au 
 T_jup = 3.368 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.943129917616009E-15 -7.77136913232114E-15 3.89316862040485E-13 -3.85511563717458E-15 7.918614134436912E-14 -1.999422557910498E-15
q -7.77136913232114E-15 2.122047579106317E-14 -2.358870614609001E-13 1.425466525024029E-14 2.332568820567421E-14 7.528981746050663E-15
tp 3.89316862040485E-13 -2.358870614609001E-13 1.791401254791326E-8 4.299374377369404E-11 4.163525610573994E-9 -5.488041215818183E-12
node -3.85511563717458E-15 1.425466525024029E-14 4.299374377369404E-11 2.322174607284286E-9 -2.287084695060942E-9 -8.135476531320797E-11
peri 7.918614134436912E-14 2.332568820567421E-14 4.163525610573994E-9 -2.287084695060942E-9 3.268200333922801E-9 7.933956940795601E-11
i -1.999422557910498E-15 7.528981746050663E-15 -5.488041215818183E-12 -8.135476531320797E-11 7.933956940795601E-11 5.136950371701203E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO440578  

351431 (2005 GR122)          Discovered 2005-Apr-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20130127/Numbers.arcLast Updated: 2013-01-31

Alternate Designations
 2005 GR122 = 2003 WE20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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