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(2017 WJ16)
Classification: Aten [NEO]          SPK-ID: 3789720
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2118974322438483 0.0001095  
a .8242107446370162 6.1353e-05 au
q .6495626042206423 0.0001386 au
i 5.770808655486079 0.0035464 deg
node 59.19414662323624 0.0017662 deg
peri 187.0520943584943 0.001334 deg
M 300.7000516872852 0.14062 deg
tp 2459045.520223701049
(2020-Jul-15.02022370)
0.11178 TDB
period 273.3101966111246
0.75
0.030517
8.355e-05
d
yr
n 1.31718466586236 0.00014707 deg/d
Q .99885888505339 7.4354e-05 au
  Orbit Determination Parameters
   # obs. used (total)      43  
   data-arc span      35 days  
   first obs. used      2017-11-25  
   last obs. used      2017-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .29694  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Jan-12 06:22:50  

Additional Information
 Earth MOID = .00851041 au 
 Jupiter MOID = 4.004 au 
 T_jup = 7.087 
[ 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 24.3   n/a MPO435150  

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