Package org.orekit.propagation.semianalytical.dsst.forces

Class FieldDSSTThirdBodyDynamicContext<T extends CalculusFieldElement<T>>

java.lang.Object

org.orekit.propagation.semianalytical.dsst.forces.FieldForceModelContext<T>

org.orekit.propagation.semianalytical.dsst.forces.FieldDSSTThirdBodyDynamicContext<T>

Type Parameters:

T - type of the field elements

public class FieldDSSTThirdBodyDynamicContext<T extends CalculusFieldElement<T>>
extends FieldForceModelContext<T>

This class is a container for the common "field" parameters used in DSSTThirdBody.

It performs parameters initialization at each integration step for the third body attraction perturbation. These parameters change for each integration step.

Since:

12.0

Author:

Bryan Cazabonne

Constructor Summary

Constructors

Constructor	Description
FieldDSSTThirdBodyDynamicContext(FieldAuxiliaryElements<T> aux, CelestialBody body, T[] parameters)	Constructor.

Method Summary

Modifier and Type	Method	Description
T	getA()	Get A = sqrt(μ * a).
T	getAlpha()	Get direction cosine α for central body.
T	getb()	Get b = 1 / (1 + sqrt(1 - e²)) = 1 / (1 + B).
T	getBB()	Get B².
T	getBBB()	Get B³.
T	getBeta()	Get direction cosine β for central body.
T	getBoA()	Get B / A.
T	getBoABpo()	Get BoABpo = B / A(1 + B).
T	getGamma()	Get direction cosine γ for central body.
T	getHXXX()	Get hXXX = h * Χ³.
T	getKXXX()	Get kXXX = h * Χ³.
T	getM2aoA()	Get m2aoA = -2 * a / A.
T	getMCo2AB()	Get mCo2AB = -C / 2AB.
T	getMeanMotion()	Get the Keplerian mean motion.
T	getMuoR3()	Get muoR3 = mu3 / R3.
T	getOoAB()	Get ooAB = 1 / (A * B).
T	getR3()	Get the distance from center of mass of the central body to the 3rd body.
T	getX()	Get Χ = 1 / sqrt(1 - e²) = 1 / B.
T	getXX()	Get Χ².

Methods inherited from class org.orekit.propagation.semianalytical.dsst.forces.FieldForceModelContext

getFieldAuxiliaryElements

Methods inherited from class java.lang.Object

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

Constructor Details

FieldDSSTThirdBodyDynamicContext

public FieldDSSTThirdBodyDynamicContext(FieldAuxiliaryElements<T> aux,
 CelestialBody body,
 T[] parameters)

Constructor.

Parameters:

aux - auxiliary elements related to the current orbit

body - body the 3rd body to consider

parameters - values of the force model parameters

Method Details

getA

public T getA()

Get A = sqrt(μ * a).

Returns:

A

getR3

public T getR3()

Get the distance from center of mass of the central body to the 3rd body.

Returns:

the distance from center of mass of the central body to the 3rd body

getAlpha

public T getAlpha()

Get direction cosine α for central body.

Returns:

α

getBeta

public T getBeta()

Get direction cosine β for central body.

Returns:

β

getGamma

public T getGamma()

Get direction cosine γ for central body.

Returns:

γ

getBB

public T getBB()

Get B².

Returns:

B²

getBBB

public T getBBB()

Get B³.

Returns:

B³

getb

public T getb()

Get b = 1 / (1 + sqrt(1 - e²)) = 1 / (1 + B).

Returns:

b

getX

public T getX()

Get Χ = 1 / sqrt(1 - e²) = 1 / B.

Returns:

Χ

getXX

public T getXX()

Get Χ².

Returns:

Χ²

getM2aoA

public T getM2aoA()

Get m2aoA = -2 * a / A.

Returns:

m2aoA

getBoA

public T getBoA()

Get B / A.

Returns:

BoA

getOoAB

public T getOoAB()

Get ooAB = 1 / (A * B).

Returns:

ooAB

getMCo2AB

public T getMCo2AB()

Get mCo2AB = -C / 2AB.

Returns:

mCo2AB

getBoABpo

public T getBoABpo()

Get BoABpo = B / A(1 + B).

Returns:

BoABpo

getMuoR3

public T getMuoR3()

Get muoR3 = mu3 / R3.

Returns:

muoR3

getHXXX

public T getHXXX()

Get hXXX = h * Χ³.

Returns:

hXXX

getKXXX

public T getKXXX()

Get kXXX = h * Χ³.

Returns:

kXXX

getMeanMotion

public T getMeanMotion()

Get the Keplerian mean motion.

The Keplerian mean motion is computed directly from semi major axis and central acceleration constant.

Returns:

Keplerian mean motion in radians per second