Package org.orekit.orbits

Class KeplerianExtendedPositionProvider

java.lang.Object

org.orekit.orbits.KeplerianExtendedPositionProvider

All Implemented Interfaces:

ExtendedPositionProvider, PVCoordinatesProvider

public class KeplerianExtendedPositionProvider
extends Object
implements ExtendedPositionProvider

Position provider assuming pure Keplerian motion. Propagation is computed with the same orbital parameters used to define the reference.

Since:

14.0

Author:

Romain Serra

See Also:

ExtendedPositionProvider, Orbit, FieldOrbit

Constructor Summary

Constructors

Constructor	Description
KeplerianExtendedPositionProvider(Orbit referenceOrbit)	Constructor.

Method Summary

Modifier and Type	Method	Description
Vector3D	getPosition(AbsoluteDate date, Frame frame)	Get the position of the body in the selected frame.
<T extends CalculusFieldElement<T>> FieldVector3D<T>	getPosition(FieldAbsoluteDate<T> date, Frame frame)	Get the position in the selected frame.
TimeStampedPVCoordinates	getPVCoordinates(AbsoluteDate date, Frame frame)	Get the PVCoordinates of the body in the selected frame.
<T extends CalculusFieldElement<T>> TimeStampedFieldPVCoordinates<T>	getPVCoordinates(FieldAbsoluteDate<T> date, Frame frame)	Get the position-velocity-acceleration in the selected frame.
Vector3D	getVelocity(AbsoluteDate date, Frame frame)	Get the velocity of the body in the selected frame.
<T extends CalculusFieldElement<T>> FieldVector3D<T>	getVelocity(FieldAbsoluteDate<T> date, Frame frame)	Get the velocity vector in the selected frame.

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.ExtendedPositionProvider

toFieldPVCoordinatesProvider

Constructor Detail

KeplerianExtendedPositionProvider

public KeplerianExtendedPositionProvider(Orbit referenceOrbit)

Constructor.

Parameters:

referenceOrbit - reference orbit (non-Keplerian terms will be ignored if any)

Method Detail

getPosition

public Vector3D getPosition(AbsoluteDate date,
                            Frame frame)

Get the position of the body in the selected frame.

Specified by:

getPosition in interface PVCoordinatesProvider

Parameters:

date - current date

frame - the frame where to define the position

Returns:

position of the body (m and)

getVelocity

public Vector3D getVelocity(AbsoluteDate date,
                            Frame frame)

Get the velocity of the body in the selected frame.

Specified by:

getVelocity in interface ExtendedPositionProvider

Specified by:

getVelocity in interface PVCoordinatesProvider

Parameters:

date - current date

frame - the frame where to define the velocity

Returns:

velocity of the body (m/s)

getPVCoordinates

public TimeStampedPVCoordinates getPVCoordinates(AbsoluteDate date,
                                                 Frame frame)

Get the PVCoordinates of the body in the selected frame.

Specified by:

getPVCoordinates in interface ExtendedPositionProvider

Specified by:

getPVCoordinates in interface PVCoordinatesProvider

Parameters:

date - current date

frame - the frame where to define the position

Returns:

time-stamped position/velocity of the body (m and m/s)

getPosition

public <T extends CalculusFieldElement<T>> FieldVector3D<T> getPosition(FieldAbsoluteDate<T> date,
                                                                        Frame frame)

Get the position in the selected frame.

Specified by:

getPosition in interface ExtendedPositionProvider

Type Parameters:

T - field type

Parameters:

date - current date

frame - the frame where to define the position

Returns:

position

getVelocity

public <T extends CalculusFieldElement<T>> FieldVector3D<T> getVelocity(FieldAbsoluteDate<T> date,
                                                                        Frame frame)

Get the velocity vector in the selected frame.

Specified by:

getVelocity in interface ExtendedPositionProvider

Type Parameters:

T - field type

Parameters:

date - current date

frame - the frame where to define the velocity

Returns:

velocity

getPVCoordinates

public <T extends CalculusFieldElement<T>> TimeStampedFieldPVCoordinates<T> getPVCoordinates(FieldAbsoluteDate<T> date,
                                                                                             Frame frame)

Get the position-velocity-acceleration in the selected frame.

Specified by:

getPVCoordinates in interface ExtendedPositionProvider

Type Parameters:

T - field type

Parameters:

date - current date

frame - the frame where to define the position

Returns:

position-velocity-acceleration vector