org.orekit.propagation.analytical.twod
Class Analytical2DParameterModel

java.lang.Object
  org.orekit.propagation.analytical.twod.Analytical2DParameterModel

All Implemented Interfaces:

Serializable

public class Analytical2DParameterModel
extends Object
implements Serializable

This class represents an analytical 2D orbital parameter model. The adapted circular parameter represented by this model is decomposed into a linear and a trigonometric part.

Since:

1.3

Version:

$Id: Analytical2DParameterModel.java 17582 2017-05-10 12:58:16Z bignon $

Author:

Rami Houdroge

See Also:

Analytical2DOrbitModel, Analytical2DPropagator, Serialized Form

Concurrency :

immutable

Constructor Summary

Analytical2DParameterModel(UnivariateDateFunction centeredFunction, double[][] trigonometricCoefs)
Create a new analytical 2D orbital parameter model, with given polynomial and trigonometric developments.

Method Summary

UnivariateDateFunction	getCenteredModel() Get model for centered part of analytical model.
double	getCenteredValue(AbsoluteDate date) Get the centered value of the model.
int	getMaxTrigonometricOrder() Return the highest trigonometric order.
double	getOneHarmonicValue(double pso, double lna, int order) Get the value of the nth trigonometric contribution.
double[][]	getTrigonometricCoefficients() Returns the trigonometric coefficients array.
double	getTrigonometricValue(double pso, double lna) Get the value of the trigonometric contribution with maximum order.
double	getTrigonometricValue(double pso, double lna, int order) Get the value of the trigonometric contribution up to provided order.
double	getValue(AbsoluteDate date, double pso, double lna) Get the value of the model at provided date.
double	getValue(AbsoluteDate date, double pso, double lna, int order) Get the value of the model at provided date.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Analytical2DParameterModel

public Analytical2DParameterModel(UnivariateDateFunction centeredFunction,
                                  double[][] trigonometricCoefs)

Create a new analytical 2D orbital parameter model, with given polynomial and trigonometric developments.

Parameters:

centeredFunction - centered part of the model

trigonometricCoefs - trigonometric development coefficients [ ..., [n, k, amp, phi], ...]. Lines must be ordered along decreasing amplitudes.

Method Detail

getValue

public double getValue(AbsoluteDate date,
                       double pso,
                       double lna)

Get the value of the model at provided date.

Parameters:

date - date

pso - centered latitude argument

lna - longitude of ascending node

Returns:

the value of the model at provided date

getValue

public double getValue(AbsoluteDate date,
                       double pso,
                       double lna,
                       int order)

Get the value of the model at provided date.

Parameters:

date - date

pso - centered latitude argument

lna - longitude of ascending node

order - order of the trigonometric development

Returns:

the value of the model at provided date

getCenteredValue

public double getCenteredValue(AbsoluteDate date)

Get the centered value of the model.

Parameters:

date - a date

Returns:

centered value of the model

getTrigonometricValue

public double getTrigonometricValue(double pso,
                                    double lna)

Get the value of the trigonometric contribution with maximum order.

Parameters:

pso - centered latitude argument

lna - longitude of ascending node

Returns:

the value of the trigonometric contribution

getTrigonometricValue

public double getTrigonometricValue(double pso,
                                    double lna,
                                    int order)

Get the value of the trigonometric contribution up to provided order.

Parameters:

pso - centered latitude argument

lna - longitude of ascending node

order - trigonometric order of the development

Returns:

the value of the trigonometric contribution

getOneHarmonicValue

public double getOneHarmonicValue(double pso,
                                  double lna,
                                  int order)

Get the value of the nth trigonometric contribution.

Parameters:

pso - centered value of mean aol

lna - centered value of the longitude of ascending node

order - order of the development

Returns:

the value of the nth harmonic contribution

getCenteredModel

public UnivariateDateFunction getCenteredModel()

Get model for centered part of analytical model.

Returns:

model for centered part of analytical model

getTrigonometricCoefficients

public double[][] getTrigonometricCoefficients()

Returns the trigonometric coefficients array.

Returns:

the trigonometric coefficients array

getMaxTrigonometricOrder

public int getMaxTrigonometricOrder()

Return the highest trigonometric order.

Returns:

highest trigonometric order