Package org.orekit.propagation.conversion

Class AbstractAnalyticalPropagatorBuilder

java.lang.Object

org.orekit.propagation.conversion.AbstractPropagatorBuilder

org.orekit.propagation.conversion.AbstractAnalyticalPropagatorBuilder

All Implemented Interfaces:

Cloneable, PropagatorBuilder

Direct Known Subclasses:

BrouwerLyddanePropagatorBuilder, EcksteinHechlerPropagatorBuilder, KeplerianPropagatorBuilder, TLEPropagatorBuilder

public abstract class AbstractAnalyticalPropagatorBuilder
extends AbstractPropagatorBuilder

Abstract class for propagator builders of analytical models (except for ephemeris i.e. interpolated ones).

Since:

12.2

Author:

Romain Serra

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractAnalyticalPropagatorBuilder(Orbit templateOrbit, PositionAngleType positionAngleType, double positionScale, boolean addDriverForCentralAttraction, AttitudeProvider attitudeProvider, double initialMass)	Build a new instance.

Method Summary

Modifier and Type	Method	Description
void	addImpulseManeuver(ImpulseManeuver impulseManeuver)	Add impulse maneuver.
AbstractBatchLSModel	buildLeastSquaresModel(PropagatorBuilder[] builders, List<ObservedMeasurement<?>> measurements, ParameterDriversList estimatedMeasurementsParameters, ModelObserver observer)	Build a new batch least squares model.
void	clearImpulseManeuvers()	Remove all impulse maneuvers.
protected List<ImpulseManeuver>	getImpulseManeuvers()	Protected getter for the impulse maneuvers.

Methods inherited from class org.orekit.propagation.conversion.AbstractPropagatorBuilder

addAdditionalDerivativesProvider, addSupportedParameters, clone, createInitialOrbit, deselectDynamicParameters, getAdditionalDerivativesProviders, getAttitudeProvider, getFrame, getInitialOrbitDate, getMass, getMu, getOrbitalParametersDrivers, getOrbitType, getPositionAngleType, getPositionScale, getPropagationParametersDrivers, getSelectedNormalizedParameters, resetOrbit, setAttitudeProvider, setMass, setParameters

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.propagation.conversion.PropagatorBuilder

buildPropagator, buildPropagator

Constructor Detail

AbstractAnalyticalPropagatorBuilder

protected AbstractAnalyticalPropagatorBuilder(Orbit templateOrbit,
                                              PositionAngleType positionAngleType,
                                              double positionScale,
                                              boolean addDriverForCentralAttraction,
                                              AttitudeProvider attitudeProvider,
                                              double initialMass)

Build a new instance.

The template orbit is used as a model to create initial orbit. It defines the inertial frame, the central attraction coefficient, the orbit type, and is also used together with the positionScale to convert from the normalized parameters used by the callers of this builder to the real orbital parameters. The default attitude provider is aligned with the orbit's inertial frame.

By default, all the orbital parameters drivers are selected, which means that if the builder is used for orbit determination or propagator conversion, all orbital parameters will be estimated. If only a subset of the orbital parameters must be estimated, caller must retrieve the orbital parameters by calling AbstractPropagatorBuilder.getOrbitalParametersDrivers() and then call setSelected(false).

Parameters:

templateOrbit - reference orbit from which real orbits will be built

positionAngleType - position angle type to use

positionScale - scaling factor used for orbital parameters normalization (typically set to the expected standard deviation of the position)

addDriverForCentralAttraction - if true, a ParameterDriver should be set up for central attraction coefficient

attitudeProvider - for the propagator

initialMass - mass

Method Detail

getImpulseManeuvers

protected List<ImpulseManeuver> getImpulseManeuvers()

Protected getter for the impulse maneuvers.

Returns:

impulse maneuvers

addImpulseManeuver

public void addImpulseManeuver(ImpulseManeuver impulseManeuver)

Add impulse maneuver.

Parameters:

impulseManeuver - impulse maneuver

clearImpulseManeuvers

public void clearImpulseManeuvers()

Remove all impulse maneuvers.

buildLeastSquaresModel

public AbstractBatchLSModel buildLeastSquaresModel(PropagatorBuilder[] builders,
                                                   List<ObservedMeasurement<?>> measurements,
                                                   ParameterDriversList estimatedMeasurementsParameters,
                                                   ModelObserver observer)

Build a new batch least squares model.

Parameters:

builders - builders to use for propagation

measurements - measurements

estimatedMeasurementsParameters - estimated measurements parameters

observer - observer to be notified at model calls

Returns:

a new model for the Batch Least Squares orbit determination