driver.ted.astro
Class T_Nutate

java.lang.Object
  driver.ted.astro.T_Nutate

All Implemented Interfaces:

java.io.Serializable

public class T_Nutate
extends java.lang.Object
implements java.io.Serializable

Title: T_Utilities Description: This project will be used to create and maintain the utility classes in the utility package driver.ted.utilities Copyright: (c) 2001 - 2006

Version:

1.1 Change from version 1.0:

Author:

Ted Driver

See Also:

Serialized Form

Constructor Summary

T_Nutate()
Default constructor, initializes all of the Nutation numeric arrays.

Method Summary

double	get_deps(T_JulianDate J) Method to Return delta epsilon, in radians.
double	get_dpsi(T_JulianDate J) Method to Return delta psi (the nutation in longitude) in radians.
double	get_eps(T_JulianDate J) Method to Return the true obliquity of the elipitic in radians.

Methods inherited from class java.lang.Object

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

Constructor Detail

T_Nutate

public T_Nutate()

Default constructor, initializes all of the Nutation numeric arrays. This constructor initializes the numeric arrays to the values outlined in Chapter 21 of Jean Meeus' Astronomical Algorithms, pages 133-134.

Method Detail

get_dpsi

public double get_dpsi(T_JulianDate J)

Method to Return delta psi (the nutation in longitude) in radians. This method is provided a T_JulianDate object and then returns the nutation in Longitude.

Parameters:

J - The Julian Date for which the nutation in longitude is desired

Returns:

The nutation in longitude, delta psi in radians

get_eps

public double get_eps(T_JulianDate J)

Method to Return the true obliquity of the elipitic in radians. This method is provided a T_JulianDate object and then returns true obliquity of the elipitic in radians. (epsilon + delta epsilon)

Parameters:

J - The Julian Date for which the true obliquity of the eliptic is desired

Returns:

true obliquity of the eliptic , epsilon + delta epsilon in radians

get_deps

public double get_deps(T_JulianDate J)

Method to Return delta epsilon, in radians. This method is provided a T_JulianDate object and then returns delta eps of the true obliquity of the elipitic in radians. (epsilon + delta epsilon)

Parameters:

J - The T_JulianDate object for which the true obliquity of the eliptic is desired

Returns:

delta epsilon, the change from the true obliquity of the eliptic , epsilon + delta epsilon in radians