Package org.orekit.forces.empirical

Interface AccelerationModel

All Superinterfaces:
ParameterDriversProvider
All Known Implementing Classes:
HarmonicAccelerationModel, PolynomialAccelerationModel
public interface AccelerationModel extends ParameterDriversProvider
Acceleration model used by empirical force.
Since:
10.3
Author:
Bryan Cazabonne

  • Method Details

    • init

      default void init(SpacecraftState initialState, AbsoluteDate target)
      Initialize the acceleration model at the start of the propagation.

      The default implementation of this method does nothing

      Parameters:
      initialState - spacecraft state at the start of propagation.
      target - date of propagation. Not equal to initialState.getDate().

    • signedAmplitude

      double signedAmplitude(SpacecraftState state, double[] parameters)
      Compute the signed amplitude of the acceleration.

      The acceleration is the direction multiplied by the signed amplitude. So if signed amplitude is negative, the acceleratin is towards the opposite of the direction specified at construction.

      Parameters:
      state - current state information: date, kinematics, attitude
      parameters - values of the force model parameters
      Returns:
      norm of the acceleration

    • signedAmplitude

      <T extends CalculusFieldElement<T>> T signedAmplitude(FieldSpacecraftState<T> state, T[] parameters)
      Compute the signed amplitude of the acceleration.

      The acceleration is the direction multiplied by the signed amplitude. So if signed amplitude is negative, the acceleratin is towards the opposite of the direction specified at construction.

      Type Parameters:
      T - type of the elements
      Parameters:
      state - current state information: date, kinematics, attitude
      parameters - values of the force model parameters
      Returns:
      norm of the acceleration