fr.cnes.sirius.patrius.frames.transformations

Class TEMEProvider

java.lang.Object

fr.cnes.sirius.patrius.frames.transformations.TEMEProvider

All Implemented Interfaces:

TransformProvider, Serializable

public final class TEMEProvider
extends Object
implements TransformProvider

True Equator Mean Equinox Frame.

This frame is used for the SGP4 model in TLE propagation. This frame has no official definition and there are some ambiguities about whether it should be used as "of date" or "of epoch". This frame should therefore be used only for TLE propagation and not for anything else, as recommended by the CCSDS Orbit Data Message blue book.

Spin derivative is never computed and is either 0 or null. No analytical formula is currently available for spin derivative. Spin is also 0.

Frames configuration is unused.

Author:

Luc Maisonobe

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TEMEProvider()

Method Summary

Modifier and Type	Method and Description
Transform	getTransform(AbsoluteDate date) Get the transform from True Of Date date.
Transform	getTransform(AbsoluteDate date, boolean computeSpinDerivatives) Get the transform from True Of Date date.
Transform	getTransform(AbsoluteDate date, FramesConfiguration config) Get the transform from True Of Date date.
Transform	getTransform(AbsoluteDate date, FramesConfiguration config, boolean computeSpinDerivatives) Get the transform from True Of Date date.

Methods inherited from class java.lang.Object

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

Constructor Detail

TEMEProvider

public TEMEProvider()

Method Detail

getTransform

public Transform getTransform(AbsoluteDate date)
                       throws PatriusException

Get the transform from True Of Date date.

The update considers the earth rotation from IERS data.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - new value of the date

Returns:

transform at the specified date

Throws:

PatriusException - if the nutation model data embedded in the library cannot be read

getTransform

public Transform getTransform(AbsoluteDate date,
                              boolean computeSpinDerivatives)
                       throws PatriusException

Get the transform from True Of Date date.

The update considers the earth rotation from IERS data.

Spin derivative is never computed and is either 0 or null. No analytical formula is currently available for spin derivative. Spin is also 0.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - new value of the date

computeSpinDerivatives - unused param

Returns:

transform at the specified date

Throws:

PatriusException - if the nutation model data embedded in the library cannot be read

getTransform

public Transform getTransform(AbsoluteDate date,
                              FramesConfiguration config)
                       throws PatriusException

Get the transform from True Of Date date.

The update considers the earth rotation from IERS data.

Frames configuration is unused.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - new value of the date

config - frames configuration to use

Returns:

transform at the specified date

Throws:

PatriusException - if the nutation model data embedded in the library cannot be read

getTransform

public Transform getTransform(AbsoluteDate date,
                              FramesConfiguration config,
                              boolean computeSpinDerivatives)
                       throws PatriusException

Get the transform from True Of Date date.

The update considers the earth rotation from IERS data.

Spin derivative is never computed and is either 0 or null. No analytical formula is currently available for spin derivative. Spin is also 0.

Frames configuration is unused.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - new value of the date

config - frames configuration to use

computeSpinDerivatives - unused param

Returns:

transform at the specified date

Throws:

PatriusException - if the nutation model data embedded in the library cannot be read