AuxiliaryElements (ORbit Extrapolation KIT 9.2 API)

java.lang.Object
- org.orekit.propagation.semianalytical.dsst.utilities.AuxiliaryElements

```
public class AuxiliaryElements
extends Object
```
Container class for common parameters used by all DSST forces.
Most of them are defined in Danielson paper at § 2.1.

Author:

Pascal Parraud

Constructor Summary

Constructors
Constructor Description

AuxiliaryElements(Orbit orbit, int retrogradeFactor)
Simple constructor.

Constructors
Constructor	Description
`AuxiliaryElements(Orbit orbit, int retrogradeFactor)`	Simple constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`getA()`	Get A = sqrt(μ * a).
`double`	`getAlpha()`	Get direction cosine α for central body.
`double`	`getB()`	Get B = sqrt(1 - e²).
`double`	`getBeta()`	Get direction cosine β for central body.
`double`	`getC()`	Get C = 1 + p² + q².
`AbsoluteDate`	`getDate()`	Get the date of the orbit.
`double`	`getEcc()`	Get the eccentricity.
`Frame`	`getFrame()`	Get the definition frame of the orbit.
`double`	`getGamma()`	Get direction cosine γ for central body.
`double`	`getH()`	Get the y component of eccentricity vector.
`double`	`getK()`	Get the x component of eccentricity vector.
`double`	`getKeplerianPeriod()`	Get the Keplerian period.
`double`	`getLf()`	Get the eccentric longitude.
`double`	`getLM()`	Get the mean longitude.
`double`	`getLv()`	Get the true longitude.
`double`	`getMeanMotion()`	Get the Keplerian mean motion.
`double`	`getMu()`	Get the central body attraction coefficient.
`double`	`getP()`	Get the y component of inclination vector.
`double`	`getQ()`	Get the x component of inclination vector.
`int`	`getRetrogradeFactor()`	Get the retrograde factor.
`double`	`getSma()`	Get the semi-major axis.
`Vector3D`	`getVectorF()`	Get equinoctial frame vector f.
`Vector3D`	`getVectorG()`	Get equinoctial frame vector g.
`Vector3D`	`getVectorW()`	Get equinoctial frame vector w.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AuxiliaryElements
```
public AuxiliaryElements(Orbit orbit,
                         int retrogradeFactor)
```
    Simple constructor.
    
    Parameters:
    
    orbit - related mean orbit for auxiliary elements
    
    retrogradeFactor - retrograde factor I [Eq. 2.1.2-(2)]
- Method Detail
  - getDate
```
public AbsoluteDate getDate()
```
    Get the date of the orbit.
    
    Returns:
    
    the date
  - getFrame
```
public Frame getFrame()
```
    Get the definition frame of the orbit.
    
    Returns:
    
    the definition frame
  - getMu
```
public double getMu()
```
    Get the central body attraction coefficient.
    
    Returns:
    
    μ
  - getEcc
```
public double getEcc()
```
    Get the eccentricity.
    
    Returns:
    
    ecc
  - getMeanMotion
```
public double getMeanMotion()
```
    Get the Keplerian mean motion.
    
    Returns:
    
    n
  - getKeplerianPeriod
```
public double getKeplerianPeriod()
```
    Get the Keplerian period.
    
    Returns:
    
    period
  - getSma
```
public double getSma()
```
    Get the semi-major axis.
    
    Returns:
    
    the semi-major axis a
  - getK
```
public double getK()
```
    Get the x component of eccentricity vector.
    This element called k in DSST corresponds to ex for the EquinoctialOrbit
    
    Returns:
    
    k
  - getH
```
public double getH()
```
    Get the y component of eccentricity vector.
    This element called h in DSST corresponds to ey for the EquinoctialOrbit
    
    Returns:
    
    h
  - getQ
```
public double getQ()
```
    Get the x component of inclination vector.
    This element called q in DSST corresponds to hx for the EquinoctialOrbit
    
    Returns:
    
    q
  - getP
```
public double getP()
```
    Get the y component of inclination vector.
    This element called p in DSST corresponds to hy for the EquinoctialOrbit
    
    Returns:
    
    p
  - getLM
```
public double getLM()
```
    Get the mean longitude.
    
    Returns:
    
    lm
  - getLv
```
public double getLv()
```
    Get the true longitude.
    
    Returns:
    
    lv
  - getLf
```
public double getLf()
```
    Get the eccentric longitude.
    
    Returns:
    
    lf
  - getRetrogradeFactor
```
public int getRetrogradeFactor()
```
    Get the retrograde factor.
    
    Returns:
    
    the retrograde factor I
  - getA
```
public double getA()
```
    Get A = sqrt(μ * a).
    
    Returns:
    
    A
  - getB
```
public double getB()
```
    Get B = sqrt(1 - e²).
    
    Returns:
    
    B
  - getC
```
public double getC()
```
    Get C = 1 + p² + q².
    
    Returns:
    
    C
  - getVectorF
```
public Vector3D getVectorF()
```
    Get equinoctial frame vector f.
    
    Returns:
    
    f vector
  - getVectorG
```
public Vector3D getVectorG()
```
    Get equinoctial frame vector g.
    
    Returns:
    
    g vector
  - getVectorW
```
public Vector3D getVectorW()
```
    Get equinoctial frame vector w.
    
    Returns:
    
    w vector
  - getAlpha
```
public double getAlpha()
```
    Get direction cosine α for central body.
    
    Returns:
    
    α
  - getBeta
```
public double getBeta()
```
    Get direction cosine β for central body.
    
    Returns:
    
    β
  - getGamma
```
public double getGamma()
```
    Get direction cosine γ for central body.
    
    Returns:
    
    γ

Class AuxiliaryElements

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

AuxiliaryElements

Method Detail

getDate

getFrame

getMu

getEcc

getMeanMotion

getKeplerianPeriod

getSma

getK

getH

getQ

getP

getLM

getLv

getLf

getRetrogradeFactor

getA

getB

getC

getVectorF

getVectorG

getVectorW

getAlpha

getBeta

getGamma