DSSTNewtonianAttractionContext.java

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 *
 *   http://www.apache.org/licenses/LICENSE-2.0
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package org.orekit.propagation.semianalytical.dsst.forces;

import org.orekit.propagation.semianalytical.dsst.utilities.AuxiliaryElements;

/**
 * This class is a container for the common parameters used in {@link DSSTNewtonianAttraction}.
 * <p>
 * It performs parameters initialization at each integration step for the central body attraction.
 * </p>
 * @author Bryan Cazabonne
 * @since 10.0
 */
public class DSSTNewtonianAttractionContext extends ForceModelContext {

    /** Standard gravitational parameter μ for the body in m³/s². */
    private final double gm;

    /**
     * Simple constructor.
     *
     * @param auxiliaryElements auxiliary elements related to the current orbit
     * @param parameters        values of the force model parameters
     */
    public DSSTNewtonianAttractionContext(final AuxiliaryElements auxiliaryElements, final double[] parameters) {

        super(auxiliaryElements);
        this.gm = parameters[0];
    }

    /** Get standard gravitational parameter μ for the body in m³/s².
     * @return gm
     */
    public double getGM() {
        return gm;
    }
}