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(2015 WK)
Classification: Apollo [NEO]          SPK-ID: 3735391
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3963519794229197 4.8084e-05  
a 1.682040177905793 0.00013993 au
q 1.015360223923952 3.5878e-06 au
i 2.28688381761553 0.00024968 deg
node 178.9542346933921 0.00038996 deg
peri 272.1952456491184 0.000315 deg
M 12.69649423775302 0.091664 deg
tp 2458972.398189944562
(2020-May-02.89818994)
0.19938 TDB
period 796.8066956527009
2.18
0.099429
0.0002722
d
yr
n .4518034323307329 5.6378e-05 deg/d
Q 2.348720131887634 0.00019539 au
  Orbit Determination Parameters
   # obs. used (total)      69  
   data-arc span      77 days  
   first obs. used      2015-11-17  
   last obs. used      2016-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .46348  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:30:31  

Additional Information
 Earth MOID = .051067 au 
 Jupiter MOID = 2.87401 au 
 T_jup = 4.137 
[ 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 25.0   n/a E2015Y91  

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