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(2011 WN2)
Classification: Apollo [NEO]          SPK-ID: 3588015
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5907507570394073 0.00021384  
a 2.394578842738576 0.0011796 au
q .9799795786002146 2.9324e-05 au
i 5.423318646854981 0.0014997 deg
node 232.5429145165559 0.00057072 deg
peri 208.6505047556491 0.00032415 deg
M 102.8231025762538 0.61612 deg
tp 2458613.928046771963
(2019-May-10.42804677)
2.0307 TDB
period 1353.449756672024
3.71
1.0001
0.002738
d
yr
n .2659869701297211 0.00019654 deg/d
Q 3.809178106876938 0.0018764 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      6 days  
   first obs. used      2011-11-17  
   last obs. used      2011-11-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .52429  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:52:01  

Additional Information
 Earth MOID = .0206628 au 
 Jupiter MOID = 1.48723 au 
 T_jup = 3.263 
[ 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 25.2   n/a MPO227507  

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