org.orekit.orbits

Class HaloOrbit

java.lang.Object

org.orekit.orbits.LibrationOrbit

org.orekit.orbits.HaloOrbit

public class HaloOrbit
extends LibrationOrbit

Class calculating different parameters of a Halo Orbit.

Since:

10.2

Author:

Vincent Mouraux

Constructor Summary

Constructors

Constructor and Description
HaloOrbit(CR3BPSystem syst, PVCoordinates pv, double orbitalPeriod) Simple Constructor.
HaloOrbit(RichardsonExpansion richardson, double az, LibrationOrbitFamily type) Simple Constructor.

Method Summary

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

Methods inherited from class org.orekit.orbits.LibrationOrbit

applyDifferentialCorrection, applyDifferentialCorrection, getInitialPV, getManifolds, getOrbitalPeriod

Methods inherited from class java.lang.Object

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

Constructor Detail

HaloOrbit

public HaloOrbit(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 Halo Orbit. In that case, it is assumed that the user knows the characteristics of the Halo Orbit leading to this first guess/point. Also, the orbital period of this Halo 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 Halo Orbit first guess

HaloOrbit

public HaloOrbit(RichardsonExpansion richardson,
                 double az,
                 LibrationOrbitFamily type)

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

az - z-axis Amplitude of the required Halo Orbit, meters

type - type of the Halo Orbit (Northern or Southern)

Method Detail

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