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JPL Small-Body Database Browser
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(2014 WE121)
Classification: Amor [NEO]          SPK-ID: 3697799
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2644458848878006 3.1655e-05  
a 1.44188606863256 7.3575e-05 au
q 1.06058523130563 8.4794e-06 au
i 4.22171985307299 0.00040495 deg
node 255.0362195268058 0.00042248 deg
peri 186.429889318949 0.00015042 deg
M 52.90887048596084 0.086601 deg
tp 2458907.556112192754
(2020-Feb-28.05611219)
0.14502 TDB
period 632.4043454960344
1.73
0.048405
0.0001325
d
yr
n .5692560504429005 4.3571e-05 deg/d
Q 1.823186905959489 9.3032e-05 au
  Orbit Determination Parameters
   # obs. used (total)      42  
   data-arc span      58 days  
   first obs. used      2014-11-22  
   last obs. used      2015-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .54912  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:37:19  

Additional Information
 Earth MOID = .0766204 au 
 Jupiter MOID = 3.4073 au 
 T_jup = 4.621 
[ 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 23.6   n/a MPO335308  

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