Package org.orekit.orbits

Class EquinoctialLongitudeArgumentUtility

java.lang.Object

org.orekit.orbits.EquinoctialLongitudeArgumentUtility

public class EquinoctialLongitudeArgumentUtility
extends Object

Utility methods for converting between different longitude arguments used by EquinoctialOrbit.

Since:

12.1

Author:

Romain Serra

See Also:

EquinoctialOrbit

Method Summary

Modifier and Type	Method	Description
static double	eccentricToMean(double ex, double ey, double lE)	Computes the mean longitude argument from the eccentric longitude argument.
static double	eccentricToTrue(double ex, double ey, double lE)	Computes the true longitude argument from the eccentric longitude argument.
static double	meanToEccentric(double ex, double ey, double lM)	Computes the eccentric longitude argument from the mean longitude argument.
static double	meanToTrue(double ex, double ey, double lM)	Computes the true longitude argument from the eccentric longitude argument.
static double	trueToEccentric(double ex, double ey, double lV)	Computes the eccentric longitude argument from the true longitude argument.
static double	trueToMean(double ex, double ey, double lV)	Computes the mean longitude argument from the eccentric longitude argument.

Methods inherited from class java.lang.Object

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

Method Detail

eccentricToTrue

public static double eccentricToTrue(double ex,
                                     double ey,
                                     double lE)

Computes the true longitude argument from the eccentric longitude argument.

Parameters:

ex - e cos(ω), first component of eccentricity vector

ey - e sin(ω), second component of eccentricity vector

lE - = E + ω + Ω eccentric longitude argument (rad)

Returns:

the true longitude argument.

trueToEccentric

public static double trueToEccentric(double ex,
                                     double ey,
                                     double lV)

Computes the eccentric longitude argument from the true longitude argument.

Parameters:

ex - e cos(ω), first component of eccentricity vector

ey - e sin(ω), second component of eccentricity vector

lV - = V + ω + Ω true longitude argument (rad)

Returns:

the eccentric longitude argument.

meanToEccentric

public static double meanToEccentric(double ex,
                                     double ey,
                                     double lM)

Computes the eccentric longitude argument from the mean longitude argument.

Parameters:

ex - e cos(ω), first component of eccentricity vector

ey - e sin(ω), second component of eccentricity vector

lM - = M + ω + Ω mean longitude argument (rad)

Returns:

the eccentric longitude argument.

eccentricToMean

public static double eccentricToMean(double ex,
                                     double ey,
                                     double lE)

Computes the mean longitude argument from the eccentric longitude argument.

Parameters:

ex - e cos(ω), first component of eccentricity vector

ey - e sin(ω), second component of eccentricity vector

lE - = E + ω + Ω mean longitude argument (rad)

Returns:

the mean longitude argument.

trueToMean

public static double trueToMean(double ex,
                                double ey,
                                double lV)

Computes the mean longitude argument from the eccentric longitude argument.

Parameters:

ex - e cos(ω), first component of eccentricity vector

ey - e sin(ω), second component of eccentricity vector

lV - = V + ω + Ω true longitude argument (rad)

Returns:

the mean longitude argument.

meanToTrue

public static double meanToTrue(double ex,
                                double ey,
                                double lM)

Computes the true longitude argument from the eccentric longitude argument.

Parameters:

ex - e cos(ω), first component of eccentricity vector

ey - e sin(ω), second component of eccentricity vector

lM - = M + ω + Ω mean longitude argument (rad)

Returns:

the true longitude argument.