org.orekit.frames.configuration.sp
Interface SPrimeModel

All Superinterfaces:

Serializable

All Known Implementing Classes:

IERS2003SPCorrection, IERS2010SPCorrection, NoSpCorrection

public interface SPrimeModel
extends Serializable

This interface provides the s' correction (used for the following transformation : TIRF -> ITRF).

s is a quantity, named "TIO (Terrestrial Intermediate Origin) locator", which provides the position of the TIO on the equator of the CIP (Celestial Intermediate Pole) corresponding to the kinematical definition of the "non-rotating" origin (NRO) in the ITRS when the CIP is moving with respect to the ITRS due to polar motion. (see chapter 5.4.1 of the IERS Convention 2010)

Since:

1.2

Version:

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

Author:

Julie Anton

Method Summary

FrameConvention	getOrigin() Get IERS model origin.
double	getSP(AbsoluteDate t) Compute the correction S' at a given date.

Method Detail

getSP

double getSP(AbsoluteDate t)

Compute the correction S' at a given date.

Parameters:

t - date

Returns:

correction S'

getOrigin

FrameConvention getOrigin()

Get IERS model origin.

Returns:

IERS model origin