org.orekit.frames.configuration.precessionnutation
Class IERS20032010PrecessionNutation

java.lang.Object
  org.orekit.frames.configuration.precessionnutation.IERS20032010PrecessionNutation

All Implemented Interfaces:

PrecessionNutationModel

public class IERS20032010PrecessionNutation
extends Object
implements PrecessionNutationModel

This class implement the IERS 2003 and 2010 Precession Nutation models.

Since:

1.3

Version:

$Id: IERS20032010PrecessionNutation.java 17602 2017-05-18 08:25:23Z bignon $

Author:

Rami Houdroge

See Also:

PrecessionNutationModel

Constructor Summary

IERS20032010PrecessionNutation(PrecessionNutationConvention convention, boolean nonConstantRotation)
Constructor.

Method Summary

double[]	getCIPMotion(AbsoluteDate date) Compute the Celestial Intermediate pole motion in the GCRS.
double[]	getCIPMotionTimeDerivative(AbsoluteDate date) Compute the Celestial Intermediate pole motion in the GCRS.
FrameConvention	getOrigin() Get IERS model origin.
boolean	isConstant() Returns true if model uses constant rotation.
boolean	isDirect() Return computation type : direct or interpolated.

Methods inherited from class java.lang.Object

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

Constructor Detail

IERS20032010PrecessionNutation

public IERS20032010PrecessionNutation(PrecessionNutationConvention convention,
                                      boolean nonConstantRotation)

Constructor.

Parameters:

convention - IERS convention to use

nonConstantRotation - true if derivatives are to be computed, false otherwise

Method Detail

getCIPMotion

public double[] getCIPMotion(AbsoluteDate date)

Compute the Celestial Intermediate pole motion in the GCRS.

Specified by:

getCIPMotion in interface PrecessionNutationModel

Parameters:

date - date

Returns:

CIP motion as an array of doubles

getCIPMotionTimeDerivative

public double[] getCIPMotionTimeDerivative(AbsoluteDate date)

Compute the Celestial Intermediate pole motion in the GCRS.

Specified by:

getCIPMotionTimeDerivative in interface PrecessionNutationModel

Parameters:

date - date

Returns:

CIP motion time derivatives as an array of doubles

isDirect

public boolean isDirect()

Description copied from interface: PrecessionNutationModel

Return computation type : direct or interpolated.

Specified by:

isDirect in interface PrecessionNutationModel

Returns:

true if direct computation, false if interpolated

getOrigin

public FrameConvention getOrigin()

Get IERS model origin.

Specified by:

getOrigin in interface PrecessionNutationModel

Returns:

IERS model origin

isConstant

public boolean isConstant()

Returns true if model uses constant rotation.

Specified by:

isConstant in interface PrecessionNutationModel

Returns:

true if model uses constant rotation