org.orekit.propagation.conversion

Class TLEPropagatorBuilder

java.lang.Object

org.orekit.propagation.conversion.AbstractPropagatorBuilder

org.orekit.propagation.conversion.TLEPropagatorBuilder

All Implemented Interfaces:

PropagatorBuilder

public class TLEPropagatorBuilder
extends AbstractPropagatorBuilder

Builder for TLEPropagator.

Since:

6.0

Author:

Pascal Parraud

Field Summary

Fields

Modifier and Type	Field and Description
static String	B_STAR Parameter name for B* coefficient.

Constructor Summary

Constructors

Constructor and Description
TLEPropagatorBuilder(TLE templateTLE, PositionAngle positionAngle, double positionScale) Build a new instance.
TLEPropagatorBuilder(TLE templateTLE, PositionAngle positionAngle, double positionScale, DataContext dataContext) Build a new instance.

Method Summary

Modifier and Type	Method and Description
Propagator	buildPropagator(double[] normalizedParameters) Build a propagator.

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

addAdditionalEquations, addSupportedParameter, createInitialOrbit, getAdditionalEquations, getAttitudeProvider, getFrame, getInitialOrbitDate, getMu, getOrbitalParametersDrivers, getOrbitType, getPositionAngle, getPositionScale, getPropagationParametersDrivers, getSelectedNormalizedParameters, resetOrbit, setAttitudeProvider, setParameters

Methods inherited from class java.lang.Object

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

Field Detail

B_STAR

public static final String B_STAR

Parameter name for B* coefficient.

See Also:

Constant Field Values

Constructor Detail

TLEPropagatorBuilder

@DefaultDataContext
public TLEPropagatorBuilder(TLE templateTLE,
                                                PositionAngle positionAngle,
                                                double positionScale)

Build a new instance. This constructor uses the default data context.

The template TLE is used as a model to create initial orbit. It defines the inertial frame, the central attraction coefficient, orbit type, satellite number, classification, .... 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.

Parameters:

templateTLE - reference TLE from which real orbits will be built

positionAngle - position angle type to use

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

Since:

7.1

See Also:

TLEPropagatorBuilder(TLE, PositionAngle, double, DataContext)

TLEPropagatorBuilder

public TLEPropagatorBuilder(TLE templateTLE,
                            PositionAngle positionAngle,
                            double positionScale,
                            DataContext dataContext)

Build a new instance.

The template TLE is used as a model to create initial orbit. It defines the inertial frame, the central attraction coefficient, orbit type, satellite number, classification, .... 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.

Parameters:

templateTLE - reference TLE from which real orbits will be built

positionAngle - position angle type to use

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

dataContext - used to access frames and time scales.

Since:

10.1

Method Detail

buildPropagator

public Propagator buildPropagator(double[] normalizedParameters)

Build a propagator.

Parameters:

normalizedParameters - normalized values for the selected parameters

Returns:

an initialized propagator