org.orekit.propagation.semianalytical.dsst.forces

Interface J2SquaredModel

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

Modifier and Type	Method and Description
double[]	computeMeanEquinoctialSecondOrderTerms(DSSTJ2SquaredClosedFormContext context) Compute the J2-squared second-order terms in equinoctial elements.
<T extends org.hipparchus.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 org.hipparchus.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]