AstroLib
Class ELP85

java.lang.Object
  |
  +--AstroLib.ELP85

public class ELP85

extends java.lang.Object

Implementation of the ELP 2000-85.

See article:

Astronomy and Astrophysics, 190, 342-352 (1988). "ELP 2000-85: a semi-analytical lunar ephemeris adequate for historical times" by M. Chapront-Touze and J. Chapront

Official ftp site:

ftp://ftp.bdl.fr/pub/ephem/moon/elp82b/

Field Summary

protected double	D
protected double	F
protected double	Ju
protected double	l
protected double	L
protected double	ll
protected double	Ma
protected double	T
protected double	t1
protected double	t2
protected double	t3
protected double	t4
protected double	t5
protected double	Ve

Constructor Summary

ELP85(double jdate)
Construct ELP85 object.

Method Summary

double	getLat() Calculates Geocentric Ecliptic Latitude.
double	getLng() Calculates Geocentric Ecliptic Longitude.
double	getRad() Calculates Geocentric Ecliptic Distance.
void	setJdate(double jdate) Set Julian date to other value.

Methods inherited from class java.lang.Object

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

Field Detail

t1

protected double t1

t2

protected double t2

t3

protected double t3

t4

protected double t4

t5

protected double t5

D

protected double D

ll

protected double ll

l

protected double l

F

protected double F

L

protected double L

T

protected double T

Ve

protected double Ve

Ma

protected double Ma

Ju

protected double Ju

Constructor Detail

ELP85

public ELP85(double jdate)

Construct ELP85 object.

Method Detail

setJdate

public void setJdate(double jdate)

Set Julian date to other value.

getLng

public double getLng()

Calculates Geocentric Ecliptic Longitude.

Returns:

longitude in radians

getLat

public double getLat()

Calculates Geocentric Ecliptic Latitude.

Returns:

latitude in radians

getRad

public double getRad()

Calculates Geocentric Ecliptic Distance.

Returns:

distance in kilometers