org.orekit.frames.configuration.precessionnutation
Class NoPrecessionNutation

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

All Implemented Interfaces:

PrecessionNutationModel

public class NoPrecessionNutation
extends Object
implements PrecessionNutationModel

In this model the CIP doesnt move.

Since:

1.3

Version:

$Id: NoPrecessionNutation.java 7602 2013-02-06 10:38:18Z HoudrogeR $

Author:

Rami Houdroge

Constructor Summary

NoPrecessionNutation()

Method Summary

double[]	getCIPMotion(AbsoluteDate t) Compute the Celestial Intermediate pole motion in the GCRS.
double[]	getCIPMotionTimeDerivative(AbsoluteDate t) Compute the Celestial Intermediate pole motion in the GCRS.
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

NoPrecessionNutation

public NoPrecessionNutation()

Method Detail

getCIPMotion

public double[] getCIPMotion(AbsoluteDate t)

Compute the Celestial Intermediate pole motion in the GCRS.

Specified by:

getCIPMotion in interface PrecessionNutationModel

Parameters:

t - date

Returns:

CIP motion as an array of doubles

getCIPMotionTimeDerivative

public double[] getCIPMotionTimeDerivative(AbsoluteDate t)

Compute the Celestial Intermediate pole motion in the GCRS.

Specified by:

getCIPMotionTimeDerivative in interface PrecessionNutationModel

Parameters:

t - date

Returns:

CIP motion time derivatives as an array of doubles

isDirect

public boolean isDirect()

Return computation type : direct or interpolated.

Specified by:

isDirect in interface PrecessionNutationModel

Returns:

true if direct computation, false if interpolated