Interface for specifying orbit size and shape using Semimajor Axis and Eccentricity.
  Eccentricity | Describes the shape of the ellipse (a real number >= 0 and <1, where 0 = a circular orbit). Dimensionless. | 
  SemiMajorAxis | Half the length of the major (longest) axis of the orbital ellipse. Uses Distance Dimension. | 
| Implemented Interface | 
|---|
| IAgClassicalSizeShape | 





