__init__ (
        self,
        primary,
        semimajorAxis,
        eccentricity,
        )

__str__ ( self )

apoapsis ( self )

area ( self )

eccentricity ( self )

focalWidth ( self )

focusCenterDistance ( self )

focusDirectrixDistance ( self )

isCircular ( self )

massicAngularMomentum ( self )

orbitalSpeedAtApoapsis ( self )

orbitalSpeedAtPeriapsis ( self )

periapsis ( self )

period ( self )

semiFocalDistance ( self )

semimajorAxis ( self )

semiminorAxis ( self )