org.orekit.forces.maneuvers

Class ConfigurableLowThrustManeuver

java.lang.Object

org.orekit.forces.maneuvers.Maneuver

org.orekit.forces.maneuvers.ConfigurableLowThrustManeuver

All Implemented Interfaces:

ForceModel, EventDetectorsProvider, ParameterDriversProvider

public class ConfigurableLowThrustManeuver
extends Maneuver

This class implements a configurable low thrust maneuver.

The maneuver is composed of succession of a burn interval. Burn intervals are defined by two detectors. See StartStopEventsTrigger for more details on the detectors. The attitude and the thrust direction are provided by an instance of ThrustDirectionProvider See ThrustDirectionProvider for more details on thrust direction and attitude.

Since:

10.2

Author:

Mikael Fillastre, Andrea Fiorentino

Field Summary

Fields inherited from interface org.orekit.propagation.events.EventDetectorsProvider

DATATION_ACCURACY

Constructor Summary

Constructors

Constructor and Description
ConfigurableLowThrustManeuver(ThrustDirectionAndAttitudeProvider thrustDirectionProvider, ManeuverTriggers trigger, double thrust, double isp) Constructor.

Method Summary

Modifier and Type	Method and Description
double	getIsp() Get the specific impulse.
double	getIsp(AbsoluteDate date) Get the specific impulse.
ThrustDirectionAndAttitudeProvider	getThrustDirectionProvider() Getter on Thrust direction and spacecraft attitude provided by an external object.
double	getThrustMagnitude() Get the thrust magnitude.
double	getThrustMagnitude(AbsoluteDate date) Get the thrust magnitude.

Methods inherited from class org.orekit.forces.maneuvers.Maneuver

acceleration, acceleration, addContribution, addContribution, dependsOnPositionOnly, getAttitudeOverride, getControl3DVectorCostType, getEventDetectors, getFieldEventDetectors, getManeuverTriggers, getName, getParametersDrivers, getPropulsionModel, init, init

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.utils.ParameterDriversProvider

getNbParametersDriversValue, getParameterDriver, getParameters, getParameters, getParameters, getParameters, getParametersAllValues, getParametersAllValues, isSupported

Methods inherited from interface org.orekit.propagation.events.EventDetectorsProvider

getEventDetectors, getFieldEventDetectors

Constructor Detail

ConfigurableLowThrustManeuver

public ConfigurableLowThrustManeuver(ThrustDirectionAndAttitudeProvider thrustDirectionProvider,
                                     ManeuverTriggers trigger,
                                     double thrust,
                                     double isp)

Constructor.

See StartStopEventsTrigger for requirements on detectors

Parameters:

thrustDirectionProvider - thrust direction and attitude provider

trigger - maneuver triggers

thrust - the thrust force (N)

isp - engine specific impulse (s)

Since:

11.1

Method Detail

getThrustDirectionProvider

public ThrustDirectionAndAttitudeProvider getThrustDirectionProvider()

Getter on Thrust direction and spacecraft attitude provided by an external object.

Returns:

internal field

getThrustMagnitude

public double getThrustMagnitude(AbsoluteDate date)

Get the thrust magnitude.

Parameters:

date - at which the Thrust wants to be known

Returns:

thrust force (N).

getThrustMagnitude

public double getThrustMagnitude()

Get the thrust magnitude.

Returns:

thrust force (N). Will throw an exception if the Thrust driver has several values driven

getIsp

public double getIsp(AbsoluteDate date)

Get the specific impulse.

Parameters:

date - at which the ISP wants to be known

Returns:

specific impulse (s).

getIsp

public double getIsp()

Get the specific impulse.

Returns:

specific impulse (s). Will throw an exception if the Thrust driver has several values driven