semiMajorAxisKm property
      
      num
      get
      semiMajorAxisKm
      
    
    
    
Implementation
num get semiMajorAxisKm => _semiMajorAxisKm;
      
      set
      semiMajorAxisKm
      (num semiMajorAxisKm) 
      
    
    
    
Implementation
set semiMajorAxisKm(num semiMajorAxisKm) =>
    _semiMajorAxisKm = semiMajorAxisKm;