Package talonsoalbi_at_gmail_dot_com.ssoxmatch.ephem.moons

Class Mars07

java.lang.Object

talonsoalbi_at_gmail_dot_com.ssoxmatch.ephem.moons.Mars07

public class Mars07
extends Object

An implementation of the martian moons ephemerides using Lainey et al. 2007 theory. Reference: Lainey, V., Dehant, V. and Paetzold, M. "First numerical ephemerides of the Martian moons", Astron. Astrophys., vol 465 pp.1075-1084 (2007).

Author:

talonso

Method Summary

Modifier and Type	Method	Description
static double[]	getMoonPosition(double jd, int target, boolean positions)	This method delivers the ephemerides of the Martian moons.

Methods inherited from class java.lang.Object

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

Method Details

getMoonPosition

public static double[] getMoonPosition(double jd,
 int target,
 boolean positions)

This method delivers the ephemerides of the Martian moons. It is based on a numerical model fitted to observations dispatched from 1877 to 2005. The expected accuracy of these ephemerides is around 500 meters for the period [1998:2010], and few kilometers for the period [1967:2020].

There are no explicit time limit in the use of this subroutine. However we DO NOT recommend its use outside the period [1877-2025]. More details are available in (Lainey, Dehant, Patzold, 2007).

Parameters:

jd - Ephemeris time, TDB.

target - Satellite, from 1 (Phobos) to 2 (Deimos).

positions - Select the output type. True to get rectangular positions, false for orbital elements.

Returns:

The output elements/positions. Angles in radians, positions in AU (mean equatorial J2000).