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

Class FieldDSSTGravityContext<T extends CalculusFieldElement<T>>

java.lang.Object

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

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

Direct Known Subclasses:

FieldDSSTTesseralContext, FieldDSSTZonalContext

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

This class is a container for the common parameters used in DSSTTesseral and DSSTZonal.

It performs parameters initialization at each integration step for the Tesseral and Zonal contribution to the central body gravitational perturbation.

Since:

12.2

Author:

Bryan Cazabonne, Maxime Journot

Method Summary

Modifier and Type	Method	Description
T	getA()	A = sqrt(μ * a).
T	getAlpha()	Get direction cosine α for central body.
T	getAx2oA()	Getter for the ax2oA.
T	getBeta()	Get direction cosine β for central body.
T	getBoA()	Get B / A.
T	getBoABpo()	Get BoABpo = B / A(1 + B).
FieldStaticTransform<T>	getBodyFixedToInertialTransform()	Getter for the bodyFixedToInertialTransform.
T	getChi()	Get Χ = 1 / sqrt(1 - e²) = 1 / B.
T	getChi2()	Get Χ².
T	getCo2AB()	Get Co2AB = C / 2AB.
T	getGamma()	Get direction cosine γ for central body.
T	getMeanMotion()	Get the Keplerian mean motion.
T	getMuoa()	Get muoa = μ / a.
T	getOoAB()	Get ooAB = 1 / (A * B).
T	getRoa()	Get roa = R / a.

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

Method Detail

getA

public T getA()

A = sqrt(μ * a).

Returns:

A

getChi

public T getChi()

Get Χ = 1 / sqrt(1 - e²) = 1 / B.

Returns:

chi

getChi2

public T getChi2()

Get Χ².

Returns:

chi2

getAx2oA

public T getAx2oA()

Getter for the ax2oA.

Returns:

the ax2oA

getOoAB

public T getOoAB()

Get ooAB = 1 / (A * B).

Returns:

ooAB

getBoA

public T getBoA()

Get B / A.

Returns:

BoA

getBoABpo

public T getBoABpo()

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

Returns:

BoABpo

getCo2AB

public T getCo2AB()

Get Co2AB = C / 2AB.

Returns:

Co2AB

getMuoa

public T getMuoa()

Get muoa = μ / a.

Returns:

the muoa

getRoa

public T getRoa()

Get roa = R / a.

Returns:

roa

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

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:

the γ

getBodyFixedToInertialTransform

public FieldStaticTransform<T> getBodyFixedToInertialTransform()

Getter for the bodyFixedToInertialTransform.

Returns:

the bodyFixedToInertialTransform