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(2006 WE4)
Classification: Atira [NEO]          SPK-ID: 3360486
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1828990578688043 4.3097e-07  
a .7847985224230974 8.177e-09 au
q .6412596120550832 3.3741e-07 au
i 24.7666937410993 5.8742e-05 deg
node 311.0072898317434 7.2824e-05 deg
peri 318.6036897376745 0.00016798 deg
M 201.9129373337196 0.00028729 deg
tp 2459508.014032631187
(2021-Oct-20.51403263)
0.00020382 TDB
period 253.9426760807924
0.70
3.9688e-06
1.087e-08
d
yr
n 1.417642774960225 2.2156e-08 deg/d
Q .9283374327911117 9.6725e-09 au
  Orbit Determination Parameters
   # obs. used (total)      59  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      4995 days (13.68 yr)  
   first obs. used      2006-11-21  
   last obs. used      2020-07-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .35157  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 00:15:49  

Additional Information
 Earth MOID = .100469 au 
 Jupiter MOID = 4.21295 au 
 T_jup = 7.324 
[ 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 18.9   n/a MPO369051  

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