Class EcksteinHechlerTheory

  • All Implemented Interfaces:
    MeanTheory

    public class EcksteinHechlerTheory
    extends Object
    implements MeanTheory
    Eckstein-Hechler theory for osculating to mean orbit conversion.
    Since:
    13.0
    Author:
    Pascal Parraud
    • Field Detail

    • Constructor Detail

      • EcksteinHechlerTheory

        public EcksteinHechlerTheory​(double referenceRadius,
                                     double mu,
                                     double c20,
                                     double c30,
                                     double c40,
                                     double c50,
                                     double c60)
        Constructor.
        Parameters:
        referenceRadius - reference radius of the Earth for the potential model (m)
        mu - central attraction coefficient (m³/s²)
        c20 - un-normalized zonal coefficient (about -1.08e-3 for Earth)
        c30 - un-normalized zonal coefficient (about +2.53e-6 for Earth)
        c40 - un-normalized zonal coefficient (about +1.62e-6 for Earth)
        c50 - un-normalized zonal coefficient (about +2.28e-7 for Earth)
        c60 - un-normalized zonal coefficient (about -5.41e-7 for Earth)
    • Method Detail

      • getTheoryName

        public String getTheoryName()
        Gets the name of the theory used for osculating to mean conversion.
        Specified by:
        getTheoryName in interface MeanTheory
        Returns:
        the actual theory
      • getReferenceRadius

        public double getReferenceRadius()
        Gets reference radius of the central body (m).
        Specified by:
        getReferenceRadius in interface MeanTheory
        Returns:
        reference radius of the central body
      • meanToOsculating

        public Orbit meanToOsculating​(Orbit mean)
        Gets osculating orbit from mean orbit.
        Specified by:
        meanToOsculating in interface MeanTheory
        Parameters:
        mean - mean orbit
        Returns:
        osculating orbit
      • postprocessing

        public Orbit postprocessing​(Orbit osculating,
                                    Orbit mean)
        Post-treatment of the converted mean orbit.

        The mean orbit returned is circular.

        Specified by:
        postprocessing in interface MeanTheory
        Parameters:
        osculating - the osculating orbit to be converted
        mean - the converted mean orbit
        Returns:
        postprocessed mean orbit
      • postprocessing

        public <T extends CalculusFieldElement<T>> FieldOrbit<T> postprocessing​(FieldOrbit<T> osculating,
                                                                                FieldOrbit<T> mean)
        Post-treatment of the converted mean orbit.

        The mean orbit returned is circular.

        Specified by:
        postprocessing in interface MeanTheory
        Type Parameters:
        T - type of the field elements
        Parameters:
        osculating - the osculating orbit to be converted
        mean - the converted mean orbit
        Returns:
        postprocessed mean orbit