QZSSAlmanac.java

/* Copyright 2002-2025 CS GROUP
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 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * CS licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
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 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
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package org.orekit.propagation.analytical.gnss.data;

import org.hipparchus.CalculusFieldElement;
import org.hipparchus.Field;
import org.orekit.gnss.SatelliteSystem;
import org.orekit.time.TimeScales;

/**
 * This class holds a QZSS almanac as read from YUMA files.
 *
 * @author Bryan Cazabonne
 * @since 10.0
 *
 */
public class QZSSAlmanac extends AbstractAlmanac<QZSSAlmanac> {

    /** Source of the almanac. */
    private String src;

    /** Health status. */
    private int health;

    /**
     * Constructor.
     * @param timeScales known time scales
     * @param system     satellite system to consider for interpreting week number
     *                   (may be different from real system, for example in Rinex nav, weeks
     *                   are always according to GPS)
     */
    public QZSSAlmanac(final TimeScales timeScales, final SatelliteSystem system) {
        super(GNSSConstants.QZSS_MU, GNSSConstants.QZSS_AV, GNSSConstants.QZSS_WEEK_NB, timeScales, system);
    }

    /** Constructor from field instance.
     * @param <T> type of the field elements
     * @param original regular field instance
     */
    public <T extends CalculusFieldElement<T>> QZSSAlmanac(final FieldQZSSAlmanac<T> original) {
        super(original);
        setSource(original.getSource());
        setHealth(original.getHealth());
    }

    /** {@inheritDoc} */
    @SuppressWarnings("unchecked")
    @Override
    public <T extends CalculusFieldElement<T>, F extends FieldGnssOrbitalElements<T, QZSSAlmanac>>
        F toField(final Field<T> field) {
        return (F) new FieldQZSSAlmanac<>(field, this);
    }

    /**
     * Setter for the Square Root of Semi-Major Axis (m^1/2).
     * <p>
     * In addition, this method set the value of the Semi-Major Axis.
     * </p>
     * @param sqrtA the Square Root of Semi-Major Axis (m^1/2)
     */
    public void setSqrtA(final double sqrtA) {
        setSma(sqrtA * sqrtA);
    }

    /**
     * Gets the source of this QZSS almanac.
     *
     * @return the source of this QZSS almanac
     */
    public String getSource() {
        return src;
    }

    /**
     * Sets the source of this GPS almanac.
     *
     * @param source the source of this GPS almanac
     */
    public void setSource(final String source) {
        this.src = source;
    }

    /**
     * Gets the Health status.
     *
     * @return the Health status
     */
    public int getHealth() {
        return health;
    }

    /**
     * Sets the health status.
     *
     * @param health the health status to set
     */
    public void setHealth(final int health) {
        this.health = health;
    }

}