org.jeospace.physics.orbit
Class Pluto

java.lang.Object
  org.jeospace.physics.orbit.SolarWorld
      org.jeospace.physics.orbit.Pluto

All Implemented Interfaces:

GeocentricWorld, Identifiable, KineticBody, OrbitalBody, World

public class Pluto

extends SolarWorld

Pluto, the ninth planet from the Sun. The calculations of orbital motion are derived from Meeus, Astronomical Algorithms, Chapter 36. Additional physical data contained in the class has been obtained from: http://nssdc.gsfc.nasa.gov/planetary/factsheet/plutofact.html

Version:

$Revision: 1.1.1.1 $

Author:

Rex Melton

Field Summary

protected static double	equatorial_radius_kilometers
protected static double	mass_in_kilograms
protected static double	polar_radius_kilometers
protected static double	siderealRotationPeriod_hours

Fields inherited from class org.jeospace.physics.orbit.SolarWorld

LIGHTDAYS_PER_AU

Constructor Summary

Pluto()
Construct the default instance

Method Summary

void	getCoordinate(double julianDay, Cartesian cartesian) Calculate the position of the world referenced to it's orbital plane about it's parent world at the specified time and initialize the passed Cartesian object with the position coordinate.
void	getCoordinate(double julianDay, Spherical coordinate) Calculate the position of the world referenced to it's orbital plane about it's parent world at the specified time and initialize the passed Spherical object with the position coordinate.
OrbitalElements	getOrbitalElements(double julianDay) Return the orbital elements for the world at the specified time
Spherical	getRotationalAxis(double julianDay) Return the position on the celestial sphere that is intersected by a vector along the rotational axis of the world - from it's origin, through the world's the North Pole.

Methods inherited from class org.jeospace.physics.orbit.SolarWorld

getEllipsoid, getGeocentricEclipticCoordinate, getGravitationalConstant, getIdentification, getLightTimeCorrectedGeocentricEclipticCoordinate, getLongitudeNormalization, getReferenceFrame, getSiderealRotation, read_periodic_terms

Methods inherited from class java.lang.Object

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

Field Detail

equatorial_radius_kilometers

protected static final double equatorial_radius_kilometers

See Also:

Constant Field Values

polar_radius_kilometers

protected static final double polar_radius_kilometers

See Also:

Constant Field Values

mass_in_kilograms

protected static final double mass_in_kilograms

See Also:

Constant Field Values

siderealRotationPeriod_hours

protected static final double siderealRotationPeriod_hours

See Also:

Constant Field Values

Constructor Detail

Pluto

public Pluto()

Construct the default instance

Method Detail

getCoordinate

public void getCoordinate(double julianDay,
                          Spherical coordinate)

Calculate the position of the world referenced to it's orbital plane about it's parent world at the specified time and initialize the passed Spherical object with the position coordinate. If the argument Spherical object is null, a new object will be created and returned.

Specified by:

getCoordinate in interface KineticBody

Overrides:

getCoordinate in class SolarWorld

Parameters:

julianDay - the time instant for calculating the world's position

coordinate - the object to initialize with the world's position coordinate.

getCoordinate

public void getCoordinate(double julianDay,
                          Cartesian cartesian)

Calculate the position of the world referenced to it's orbital plane about it's parent world at the specified time and initialize the passed Cartesian object with the position coordinate.

Specified by:

getCoordinate in interface KineticBody

Overrides:

getCoordinate in class SolarWorld

Parameters:

julianDay - the time instant for calculating the world's position

cartesian - the object to initialize with the world's position coordinate

getRotationalAxis

public Spherical getRotationalAxis(double julianDay)

Return the position on the celestial sphere that is intersected by a vector along the rotational axis of the world - from it's origin, through the world's the North Pole.

Specified by:

getRotationalAxis in interface World

Specified by:

getRotationalAxis in class SolarWorld

Parameters:

julianDay - the time instant at which to calculate the rotational axis alignment

Returns:

the position on the celestial sphere that is 'pointed to' by the rotational axis of the world.

getOrbitalElements

public OrbitalElements getOrbitalElements(double julianDay)

Return the orbital elements for the world at the specified time

Specified by:

getOrbitalElements in interface OrbitalBody

Overrides:

getOrbitalElements in class SolarWorld

Parameters:

julianDay - the time instant for which the elements should be calculated

Returns:

the orbital elements of the world at the specified time