org.orekit.frames.configuration.tides
Class IERS2003TidalCorrection

java.lang.Object
  org.orekit.frames.configuration.tides.IERS2003TidalCorrection

All Implemented Interfaces:

TidalCorrectionModel

public class IERS2003TidalCorrection
extends Object
implements TidalCorrectionModel

Compute tidal correction to the pole motion.

This class computes the diurnal and semidiurnal variations in the Earth orientation. It is a java translation of the fortran subroutine found at ftp://tai.bipm.org/iers/conv2003/chapter8/ortho_eop.f.

This class has been adapted from the TidalCorrection Orekit class.

Since:

1.3

Version:

$Id: IERS2003TidalCorrection.java 17602 2017-05-18 08:25:23Z bignon $

Author:

Rami Houdroge

Constructor Summary

IERS2003TidalCorrection()
Simple constructor.

Method Summary

protected TidalCorrection	computeCorrections(AbsoluteDate date) Compute the partials of the tidal variations to the orthoweights.
double	getLODCorrection(AbsoluteDate t) Get length of day correction.
FrameConvention	getOrigin() Get IERS model origin.
PoleCorrection	getPoleCorrection(AbsoluteDate date) Compute the pole corrections at a given date.
double	getUT1Correction(AbsoluteDate date) Compute the UT1-TAI corrections at a given date.
boolean	isDirect() Returns true if model uses direct computation, false if interpolated computation.

Methods inherited from class java.lang.Object

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

Constructor Detail

IERS2003TidalCorrection

public IERS2003TidalCorrection()

Simple constructor.

Method Detail

computeCorrections

protected TidalCorrection computeCorrections(AbsoluteDate date)

Compute the partials of the tidal variations to the orthoweights.

Parameters:

date - date at which corrections are to be computed

Returns:

a TidesCorrection object containing a PoleCorrection and a double for the time gap correction

getPoleCorrection

public PoleCorrection getPoleCorrection(AbsoluteDate date)

Compute the pole corrections at a given date.

Specified by:

getPoleCorrection in interface TidalCorrectionModel

Parameters:

date - date

Returns:

pole correction

getUT1Correction

public double getUT1Correction(AbsoluteDate date)

Compute the UT1-TAI corrections at a given date.

Specified by:

getUT1Correction in interface TidalCorrectionModel

Parameters:

date - date

Returns:

ut1-tai corrections

getLODCorrection

public double getLODCorrection(AbsoluteDate t)

Get length of day correction.

Specified by:

getLODCorrection in interface TidalCorrectionModel

Parameters:

t - date

Returns:

length of day correction (in secs)

getOrigin

public FrameConvention getOrigin()

Get IERS model origin.

Specified by:

getOrigin in interface TidalCorrectionModel

Returns:

IERS model origin

isDirect

public boolean isDirect()

Returns true if model uses direct computation, false if interpolated computation.

Specified by:

isDirect in interface TidalCorrectionModel

Returns:

true if model uses direct computation, false if interpolated computation