Package org.orekit.control.heuristics

Class MeanSmaChangeImpulseProvider

java.lang.Object

org.orekit.control.heuristics.AbstractInPlaneImpulseProvider

org.orekit.control.heuristics.MeanSmaChangeImpulseProvider

All Implemented Interfaces:

ImpulseProvider

public class MeanSmaChangeImpulseProvider
extends AbstractInPlaneImpulseProvider

Class modelling impulsive maneuvers to set the mean semi-major axis to a given value. The impulse vector is tangential and computed in the same frame as the orbit. The resulting osculating eccentricity depends on the execution location. The instantaneous orbital plane is left unchanged. A constraint on the maximum magnitude can be optionally set.

Since:

14.0

Author:

Romain Serra

See Also:

• OsculatingSmaChangeImpulseProvider
• OsculatingToMeanConverter

Constructor Summary

Constructors

Constructor	Description
MeanSmaChangeImpulseProvider(double maximumMagnitude, double targetSemiMajorAxis, OsculatingToMeanConverter osculatingToMeanConverter)	Constructor.
MeanSmaChangeImpulseProvider(double targetSemiMajorAxis, OsculatingToMeanConverter osculatingToMeanConverter)	Constructor with default maximum magnitude set to positive infinity (unconstrained).

Method Summary

Modifier and Type	Method	Description
Vector3D	getUnconstrainedImpulse(SpacecraftState state, boolean isForward)	Compute the impulse without magnitude constraint.

Methods inherited from class org.orekit.control.heuristics.AbstractInPlaneImpulseProvider

getImpulse, getMaximumMagnitude

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.forces.maneuvers.ImpulseProvider

finish, init

Constructor Details

MeanSmaChangeImpulseProvider

public MeanSmaChangeImpulseProvider(double targetSemiMajorAxis,
 OsculatingToMeanConverter osculatingToMeanConverter)

Constructor with default maximum magnitude set to positive infinity (unconstrained).

Parameters:

targetSemiMajorAxis - osculating value to achieve

osculatingToMeanConverter - mean orbit converter

MeanSmaChangeImpulseProvider

public MeanSmaChangeImpulseProvider(double maximumMagnitude,
 double targetSemiMajorAxis,
 OsculatingToMeanConverter osculatingToMeanConverter)

Constructor.

Parameters:

maximumMagnitude - maximum magnitude

targetSemiMajorAxis - osculating value to achieve

osculatingToMeanConverter - mean orbit converter

Method Details

getUnconstrainedImpulse

public Vector3D getUnconstrainedImpulse(SpacecraftState state,
 boolean isForward)

Description copied from class: AbstractInPlaneImpulseProvider

Compute the impulse without magnitude constraint.

Specified by:

getUnconstrainedImpulse in class AbstractInPlaneImpulseProvider

Parameters:

state - state immediately before (or after in backward time) the maneuver

isForward - flag on propagation direction

Returns:

impulse vector