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(2008 WN61)
Classification: Main-belt Asteroid          SPK-ID: 3440682
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4553338301880197 8.7018e-06  
a 3.06567106890363 0.00022138 au
q 1.669767319003139 0.00014535 au
i 16.29188192170269 0.00048154 deg
node 196.9840925917455 0.00062107 deg
peri 171.5196301653779 0.0026622 deg
M 60.8914575073054 0.076384 deg
tp 2458668.880065851165
(2019-Jul-04.38006585)
0.38008 TDB
period 1960.589895212437
5.37
0.21237
0.0005814
d
yr
n .1836182063771132 1.9889e-05 deg/d
Q 4.461574818804119 0.00032218 au
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      83 days  
   first obs. used      2008-09-07  
   last obs. used      2008-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .5124  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-08 11:25:22  

Additional Information
 Earth MOID = .671461 au 
 Jupiter MOID = 1.03408 au 
 T_jup = 3.009 
[ show covariance matrix ]

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 17.2   n/a MPO149162  

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