Package org.orekit.orbits.cr3bp

Class LyapunovOrbit

java.lang.Object

org.orekit.orbits.cr3bp.LibrationOrbit

org.orekit.orbits.cr3bp.LyapunovOrbit

public class LyapunovOrbit
extends LibrationOrbit

Class calculating different parameters of a Lyapunov Orbit.

Since:

10.2

Author:

Vincent Mouraux

Constructor Summary

Constructors

Constructor	Description
LyapunovOrbit(CR3BPSystem syst, PVCoordinates pv, double orbitalPeriod)	Simple Constructor.
LyapunovOrbit(RichardsonExpansion richardson, double ay)	Simple Constructor.

Method Summary

Modifier and Type	Method	Description
protected PVCoordinates	applyCorrectionOnPV(CR3BPDifferentialCorrection diff)	Apply the differential correction to compute more accurate initial PV.

Methods inherited from class org.orekit.orbits.cr3bp.LibrationOrbit

applyDifferentialCorrection, getInitialPV, getManifolds, getOrbitalPeriod

Methods inherited from class java.lang.Object

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

Constructor Details

LyapunovOrbit

public LyapunovOrbit(CR3BPSystem syst,
 PVCoordinates pv,
 double orbitalPeriod)

Simple Constructor.

This constructor can be used if the user wants to use a first guess from any other sources or if he has the initial conditions of a well defined Lyapunov Orbit. In that case, it is assumed that the user knows the characteristics of the Lyapunov Orbit leading to this first guess/point. Also, the orbital period of this Lyapunov Orbit has to be specified for further computation.

Parameters:

syst - CR3BP System considered

pv - PVCoordinates of the initial point or of the first guess

orbitalPeriod - Normalized orbital period linked to the given Lyapunov Orbit first guess

LyapunovOrbit

public LyapunovOrbit(RichardsonExpansion richardson,
 double ay)

Simple Constructor.

Standard constructor, the first guess will be computed with both start time and phase equal to zero.

Parameters:

richardson - third-Order Richardson Expansion

ay - y-axis amplitude of the required Lyapunov Orbit, meters

Method Details

applyCorrectionOnPV

protected PVCoordinates applyCorrectionOnPV(CR3BPDifferentialCorrection diff)

Apply the differential correction to compute more accurate initial PV.

Specified by:

applyCorrectionOnPV in class LibrationOrbit

Parameters:

diff - cr3bp differential correction

Returns:

corrected PV coordinates