J2SquaredModel (OREKIT 12.1.2 API)

All Known Implementing Classes:

ZeisModel
```
public interface J2SquaredModel
```
Semi-analytical J2-squared model.
This interface is implemented by models providing J2-squared second-order terms in equinoctial elements. These terms are used in the computation of the closed-form J2-squared perturbation in semi-analytical satellite theory.

Since:

12.0

Author:

Bryan Cazabonne

See Also:

ZeisModel

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`double[]`	`computeMeanEquinoctialSecondOrderTerms(DSSTJ2SquaredClosedFormContext context)`	Compute the J2-squared second-order terms in equinoctial elements.
`<T extends CalculusFieldElement<T>> T[]`	`computeMeanEquinoctialSecondOrderTerms(FieldDSSTJ2SquaredClosedFormContext<T> context)`	Compute the J2-squared second-order terms in equinoctial elements.

- Method Detail
  - computeMeanEquinoctialSecondOrderTerms
```
double[] computeMeanEquinoctialSecondOrderTerms(DSSTJ2SquaredClosedFormContext context)
```
    Compute the J2-squared second-order terms in equinoctial elements.
    
    Parameters:
    
    context - model context
    
    Returns:
    
    the J2-squared second-order terms in equinoctial elements. Order must follow: [A, K, H, Q, P, M]
  - computeMeanEquinoctialSecondOrderTerms
```
<T extends CalculusFieldElement<T>> T[] computeMeanEquinoctialSecondOrderTerms(FieldDSSTJ2SquaredClosedFormContext<T> context)
```
    Compute the J2-squared second-order terms in equinoctial elements.
    
    Type Parameters:
    
    T - type of the elements
    
    Parameters:
    
    context - model context
    
    Returns:
    
    the J2-squared second-order terms in equinoctial elements. Order must follow: [A, K, H, Q, P, M]