org.orekit.bodies
Class MeeusSun

java.lang.Object
  org.orekit.bodies.AbstractCelestialBody
      org.orekit.bodies.MeeusSun

All Implemented Interfaces:

Serializable, CelestialBody, PVCoordinatesProvider

public class MeeusSun
extends AbstractCelestialBody

This class implements the Sun ephemerides according to the algorithm of Meeus, it only provides the position. Note that it is not possible to build this Sun from the CelestialBodyFactory.

See "Astronomical Algorithms", chapter 24 "Solar Coordinates", Jean Meeus, 1991.

Note that pole information allowing to define inertially-centered frame and rotating frame are defined in IAUPoleFactory since Meeus model does not provide the information.

Since:

1.1

Version:

$Id: MeeusSun.java 15818 2016-04-07 14:08:12Z bignon $

Author:

Julie Anton

See Also:

CelestialBody, Serialized Form

Concurrency :

immutable

Constructor Summary

MeeusSun()
Simple constructor.

Method Summary

PVCoordinates

getPVCoordinates(AbsoluteDate date, Frame frame) Get the PVCoordinates of the body in the selected frame.

Methods inherited from class org.orekit.bodies.AbstractCelestialBody

getBodyOrientedFrame, getFrame, getGM, getInertiallyOrientedFrame, getName

Methods inherited from class java.lang.Object

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

Constructor Detail

MeeusSun

public MeeusSun()
         throws OrekitException

Simple constructor.

Throws:

OrekitException - if data embedded in the library cannot be read

Method Detail

getPVCoordinates

public PVCoordinates getPVCoordinates(AbsoluteDate date,
                                      Frame frame)
                               throws OrekitException

Description copied from class: AbstractCelestialBody

Get the PVCoordinates of the body in the selected frame.

Specified by:

getPVCoordinates in interface PVCoordinatesProvider

Specified by:

getPVCoordinates in class AbstractCelestialBody

Parameters:

date - current date

frame - the frame where to define the position

Returns:

position/velocity of the body (m and m/s)

Throws:

OrekitException - if position cannot be computed in given frame