Package org.orekit.models.earth.displacement

Class Tide

java.lang.Object

org.orekit.models.earth.displacement.Tide

public class Tide
extends Object

Class representing a tide.

Since:

9.1

Author:

Luc Maisonobe

Field Summary

Fields

Modifier and Type	Field	Description
static final Tide	K1	K₁ tide.
static final Tide	K2	K₂ tide.
static final Tide	M2	M₂ tide.
static final Tide	MF	Mf tide.
static final Tide	MM	Mm tide.
static final Tide	N2	N₂ tide.
static final Tide	O1	O₁ tide.
static final Tide	P1	P₁ tide.
static final Tide	Q1	Q₁ tide.
static final Tide	S2	S₂ tide.
static final Tide	SSA	Ssa tide.

Constructor Summary

Constructors

Constructor	Description
Tide(int doodsonNumber)	Simple constructor.
Tide(int cTau, int cS, int cH, int cP, int cNprime, int cPs)	Simple constructor.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object object)
int[]	getDelaunayMultipliers()	Get the multipliers for Delaunay arguments (l, l', F, D, Ω).
int[]	getDoodsonMultipliers()	Get the multipliers for Doodson arguments (τ, s, h, p, N', ps).
int	getDoodsonNumber()	Get the Doodson number.
double	getPhase(BodiesElements elements)	Get the phase of the tide.
double	getRate(BodiesElements elements)	Get the angular rate of the tide.
int	getTauMultiplier()	Get the multiplier for the τ Doodson argument.
int	hashCode()

Methods inherited from class java.lang.Object

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

Field Details

M2

public static final Tide M2

M₂ tide.

S2

public static final Tide S2

S₂ tide.

N2

public static final Tide N2

N₂ tide.

K2

public static final Tide K2

K₂ tide.

K1

public static final Tide K1

K₁ tide.

O1

public static final Tide O1

O₁ tide.

P1

public static final Tide P1

P₁ tide.

Q1

public static final Tide Q1

Q₁ tide.

MF

public static final Tide MF

Mf tide.

MM

public static final Tide MM

Mm tide.

SSA

public static final Tide SSA

Ssa tide.

Constructor Details

Tide

public Tide(int cTau,
 int cS,
 int cH,
 int cP,
 int cNprime,
 int cPs)

Simple constructor.

Parameters:

cTau - coefficient for mean lunar time

cS - coefficient for mean longitude of the Moon

cH - coefficient for mean longitude of the Sun

cP - coefficient for longitude of Moon mean perigee

cNprime - negative of the longitude of the Moon's mean ascending node on the ecliptic

cPs - coefficient for longitude of Sun mean perigee

Tide

public Tide(int doodsonNumber)

Simple constructor.

Parameters:

doodsonNumber - Doodson Number

Method Details

getDelaunayMultipliers

public int[] getDelaunayMultipliers()

Get the multipliers for Delaunay arguments (l, l', F, D, Ω).

Beware that for tides the multipliers for Delaunay arguments have an opposite sign with respect to the convention used for nutation computation! Here, we obey the tides convention.

Returns:

multipliers for Delaunay arguments (l, l', F, D, Ω)

getDoodsonMultipliers

public int[] getDoodsonMultipliers()

Get the multipliers for Doodson arguments (τ, s, h, p, N', ps).

Returns:

multipliers for Doodson arguments (τ, s, h, p, N', ps)

getDoodsonNumber

public int getDoodsonNumber()

Get the Doodson number.

Returns:

Doodson number

getTauMultiplier

public int getTauMultiplier()

Get the multiplier for the τ Doodson argument.

This multiplier identifies semi-diurnal tides (2), diurnal tides (1) and long period tides (0)

Returns:

multiplier for the τ Doodson argument

getPhase

public double getPhase(BodiesElements elements)

Get the phase of the tide.

Parameters:

elements - elements to use

Returns:

phase of the tide (radians)

getRate

public double getRate(BodiesElements elements)

Get the angular rate of the tide.

Parameters:

elements - elements to use

Returns:

angular rate of the tide (radians/second)

equals

public boolean equals(Object object)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object