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(2008 GO20)
Classification: Apollo [NEO]          SPK-ID: 3408681
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4909768350318259 2.8374e-05  
a 1.892852717691221 9.7887e-05 au
q .9635058811777948 3.8851e-06 au
i 2.249751849107505 8.9087e-05 deg
node 119.5928278625965 0.00064674 deg
peri 160.6433975632237 0.00060105 deg
M 283.3761999915948 0.13219 deg
tp 2459402.957955428366
(2021-Jul-07.45795543)
0.36499 TDB
period 951.2039855269078
2.60
0.073786
0.000202
d
yr
n .3784677161551026 2.9358e-05 deg/d
Q 2.822199554204647 0.00014595 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      124 days  
   first obs. used      2008-04-09  
   last obs. used      2008-08-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .60548  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:03:44  

Additional Information
 Earth MOID = .00891039 au 
 Jupiter MOID = 2.34646 au 
 T_jup = 3.799 
[ hide covariance matrix ]
Orbital Elements at Epoch 2454584.5 (2008-Apr-28.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4910977164659646 2.7344e-05  
q .9630059582502659 2.6978e-06 au
tp 2454647.042698701691
(2008-Jun-29.54269870)
0.00012752 TDB
node 119.7624125883577 0.00063754 deg
peri 160.5285834903258 0.00058411 deg
i 2.242148114906402 8.9054e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      124 days  
   first obs. used      2008-04-09  
   last obs. used      2008-08-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .60548  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:03:44  

Additional Information
 Jupiter MOID = 2.34646 au 
 T_jup = 3.799 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.476800256531449E-10 -7.358307320641199E-11 -1.99356488019466E-9 9.026983725436254E-9 -7.672312631349334E-9 2.422828511553209E-9
q -7.358307320641199E-11 7.278272662929191E-12 1.966226493230613E-10 -8.740503977656725E-10 7.377675165909258E-10 -2.382238817724468E-10
tp -1.99356488019466E-9 1.966226493230613E-10 1.626090725023127E-8 8.887039577267677E-9 -5.442811552509014E-9 -5.771752620142477E-9
node 9.026983725436254E-9 -8.740503977656725E-10 8.887039577267677E-9 4.064549938117988E-7 -3.701548158165783E-7 3.11173996330795E-8
peri -7.672312631349334E-9 7.377675165909258E-10 -5.442811552509014E-9 -3.701548158165783E-7 3.41187912233786E-7 -2.630455642447742E-8
i 2.422828511553209E-9 -2.382238817724468E-10 -5.771752620142477E-9 3.11173996330795E-8 -2.630455642447742E-8 7.930635786757005E-9

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 22.3   n/a MPO141921  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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