fr.cnes.sirius.patrius.stela.forces.gravity
Class TesseralQuad

java.lang.Object
  fr.cnes.sirius.patrius.stela.forces.gravity.TesseralQuad

public final class TesseralQuad
extends Object

Tesseral harmonics quad (n, m, p, q) and related data.

Since:

1.3

Version:

$Id: TesseralQuad.java 16763 2016-10-10 09:31:17Z bignon $

Author:

Emmanuel Bignon, Rami Houdroge

Concurrency :

not thread-safe

Concurrency comment :

use of internal mutable attributes

Constructor Summary

TesseralQuad(PotentialCoefficientsProvider provider, int coefN, int coefM, int coefP, int coefQ, Orbit orbit)
Constructor.

Method Summary

double	getCentralEccentricity() Getter for the central eccentricity ec.
double	getDeltaEccentricity() Getter for the delta eccentricity Δe.
double[]	getDiffTaylorCoeffs() Getter for the Taylor coefficients (up to the 2nd order) of the eccentricity function derivative G'(e).
double	getFc() Getter for fc.
double	getFs() Getter for fs.
int	getM() Getter for m coefficient.
int	getN() Getter for n coefficient.
int	getP() Getter for p coefficient.
int	getQ() Getter for q coefficient.
int[]	getQuad() Getter for quads as an array.
double[]	getTaylorCoeffs() Getter for the Taylor coefficients (up to the 2nd order) of the eccentricity function G(e).
void	updateEccentricityInterval(Orbit orbit) Update eccentricity interval [ec - Δe; ec + Δe].

Methods inherited from class java.lang.Object

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

Constructor Detail

TesseralQuad

public TesseralQuad(PotentialCoefficientsProvider provider,
                    int coefN,
                    int coefM,
                    int coefP,
                    int coefQ,
                    Orbit orbit)
             throws OrekitException

Constructor.

Parameters:

provider - potential coefficients provider

coefN - n coefficient

coefM - m coefficient

coefP - p coefficient

coefQ - q coefficient

orbit - the orbit

Throws:

OrekitException - if couldn't get potential coefficients data

Method Detail

updateEccentricityInterval

public void updateEccentricityInterval(Orbit orbit)

Update eccentricity interval [e_c - Δe; e_c + Δe]. G(e) and G'(e) functions using taylor approximations are valid upon this interval.

Parameters:

orbit - the orbit

getN

public int getN()

Getter for n coefficient.

Returns:

n coefficient

getM

public int getM()

Getter for m coefficient.

Returns:

m coefficient

getP

public int getP()

Getter for p coefficient.

Returns:

p coefficient

getQ

public int getQ()

Getter for q coefficient.

Returns:

q coefficient

getFc

public double getFc()

Getter for f_c.

Returns:

f_c

getFs

public double getFs()

Getter for f_s.

Returns:

f_s

getCentralEccentricity

public double getCentralEccentricity()

Getter for the central eccentricity e_c.

Returns:

the central eccentricity e_c

getDeltaEccentricity

public double getDeltaEccentricity()

Getter for the delta eccentricity Δe.

Returns:

the delta eccentricity Δe

getTaylorCoeffs

public double[] getTaylorCoeffs()

Getter for the Taylor coefficients (up to the 2nd order) of the eccentricity function G(e).

Returns:

the Taylor coefficients (up to the 2nd order) of the eccentricity function G(e)

getDiffTaylorCoeffs

public double[] getDiffTaylorCoeffs()

Getter for the Taylor coefficients (up to the 2nd order) of the eccentricity function derivative G'(e).

Returns:

the Taylor coefficients (up to the 2nd order) of the eccentricity function derivative G'G(e)

getQuad

public int[] getQuad()

Getter for quads as an array.

Returns:

quad list as an array