AdditionalParameters.java

  1. /* Copyright 2002-2022 CS GROUP
  2.  * Licensed to CS GROUP (CS) under one or more
  3.  * contributor license agreements.  See the NOTICE file distributed with
  4.  * this work for additional information regarding copyright ownership.
  5.  * CS licenses this file to You under the Apache License, Version 2.0
  6.  * (the "License"); you may not use this file except in compliance with
  7.  * the License.  You may obtain a copy of the License at
  8.  *
  9.  *   http://www.apache.org/licenses/LICENSE-2.0
  10.  *
  11.  * Unless required by applicable law or agreed to in writing, software
  12.  * distributed under the License is distributed on an "AS IS" BASIS,
  13.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14.  * See the License for the specific language governing permissions and
  15.  * limitations under the License.
  16.  */
  17. package org.orekit.files.ccsds.ndm.cdm;

  19. import org.orekit.errors.OrekitException;
  20. import org.orekit.errors.OrekitMessages;
  21. import org.orekit.files.ccsds.ndm.CommonPhysicalProperties;

  23. /**
  24.  * Container for additional parameters data block.
  25.  * @author Melina Vanel
  26.  * @since 11.2
  27.  */
  28. public class AdditionalParameters extends CommonPhysicalProperties {

  30.     /** The actual area of the object. */
  31.     private double areaPC;

  33.     /** The minimum area of the object to be used to compute the collision probability. */
  34.     private double areaPCMin;

  36.     /** The maximum area of the object to be used to compute the collision probability. */
  37.     private double areaPCMax;

  39.     /** The effective area of the object exposed to atmospheric drag. */
  40.     private double areaDRG;

  42.     /** The effective area of the object exposed to solar radiation pressure. */
  43.     private double areaSRP;

  45.     /** The object hard body radius. */
  46.     private double hbr;

  48.     /** The mass of the object. */
  49.     private double mass;

  51.     /** The object’s Cd x A/m used to propagate the state vector and covariance to TCA. */
  52.     private double cdAreaOverMass;

  54.     /** The object’s Cr x A/m used to propagate the state vector and covariance to TCA. */
  55.     private double crAreaOverMass;

  57.     /** The object’s acceleration due to in-track thrust used to propagate the state vector and covariance to TCA. */
  58.     private double thrustAcceleration;

  60.     /** The amount of energy being removed from the object’s orbit by atmospheric drag. This value is an average calculated during the OD. */
  61.     private double sedr;

  63.     /** The distance of the furthest point in the objects orbit above the equatorial radius of the central body. */
  64.     private double apoapsisAltitude;

  66.     /** The distance of the closest point in the objects orbit above the equatorial radius of the central body . */
  67.     private double periapsissAltitude;

  69.     /** The angle between the objects orbit plane and the orbit centers equatorial plane. */
  70.     private double inclination;

  72.     /** A measure of the confidence in the covariance errors matching reality. */
  73.     private double covConfidence;

  75.     /** The method used for the calculation of COV_CONFIDENCE. */
  76.     private String covConfidenceMethod;

  78.     /** Simple constructor.
  79.      */
  80.     public AdditionalParameters() {

  82.        // Call to CommonPhysicalProperties constructor
  83.         super();

  85.         // we don't call the setXxx() methods in order to avoid
  86.         // calling refuseFurtherComments as a side effect
  87.         areaPC              = Double.NaN;
  88.         areaDRG             = Double.NaN;
  89.         areaSRP             = Double.NaN;
  90.         mass                = Double.NaN;
  91.         cdAreaOverMass      = Double.NaN;
  92.         crAreaOverMass      = Double.NaN;
  93.         thrustAcceleration  = Double.NaN;
  94.         sedr                = Double.NaN;
  95.         hbr                 = Double.NaN;
  96.         apoapsisAltitude      = Double.NaN;
  97.         periapsissAltitude    = Double.NaN;
  98.         inclination         = Double.NaN;
  99.         covConfidence       = Double.NaN;
  100.     }

  102.     /** {@inheritDoc} */
  103.     @Override
  104.     public void validate(final double version) {
  105.         super.validate(version);
  106.     }

  108.     /**
  109.      * Get the actual area of the object.
  110.      * @return the object area (in m²)
  111.      */
  112.     public double getAreaPC() {
  113.         return areaPC;
  114.     }

  116.     /**
  117.      * Set the actual area of the object.
  118.      * @param areaPC area  (in m²) value to be set
  119.      */
  120.     public void setAreaPC(final double areaPC) {
  121.         refuseFurtherComments();
  122.         this.areaPC = areaPC;
  123.     }

  125.     /**
  126.      * Get the effective area of the object exposed to atmospheric drag.
  127.      * @return the object area (in m²) exposed to atmospheric drag
  128.      */
  129.     public double getAreaDRG() {
  130.         return areaDRG;
  131.     }

  133.     /**
  134.      * Set the effective area of the object exposed to atmospheric drag.
  135.      * @param areaDRG area (in m²) value to be set
  136.      */
  137.     public void setAreaDRG(final double areaDRG) {
  138.         refuseFurtherComments();
  139.         this.areaDRG = areaDRG;
  140.     }

  142.     /**
  143.      * Get the effective area of the object exposed to solar radiation pressure.
  144.      * @return the object area (in m²) exposed to solar radiation pressure
  145.      */
  146.     public double getAreaSRP() {
  147.         return areaSRP;
  148.     }

  150.     /**
  151.      * Set the effective area of the object exposed to solar radiation pressure.
  152.      * @param areaSRP area (in m²) to be set
  153.      */
  154.     public void setAreaSRP(final double areaSRP) {
  155.         refuseFurtherComments();
  156.         this.areaSRP = areaSRP;
  157.     }

  159.     /**
  160.      * Get the mass of the object.
  161.      * @return the mass (in kg) of the object
  162.      */
  163.     public double getMass() {
  164.         return mass;
  165.     }

  167.     /**
  168.      * Set the mass of the object.
  169.      * @param mass mass (in kg) of the object to be set
  170.      */
  171.     public void setMass(final double mass) {
  172.         refuseFurtherComments();
  173.         this.mass = mass;
  174.     }

  176.     /**
  177.      * Get the object’s Cd x A/m used to propagate the state vector and covariance to TCA.
  178.      * @return the object’s Cd x A/m (in m²/kg)
  179.      */
  180.     public double getCDAreaOverMass() {
  181.         return cdAreaOverMass;
  182.     }

  184.     /**
  185.      * Set the object’s Cd x A/m used to propagate the state vector and covariance to TCA.
  186.      * @param CDAreaOverMass object’s Cd x A/m (in m²/kg) value to be set
  187.      */
  188.     public void setCDAreaOverMass(final double CDAreaOverMass) {
  189.         refuseFurtherComments();
  190.         this.cdAreaOverMass = CDAreaOverMass;
  191.     }

  193.     /**
  194.      * Get the object’s Cr x A/m used to propagate the state vector and covariance to TCA.
  195.      * @return the object’s Cr x A/m (in m²/kg)
  196.      */
  197.     public double getCRAreaOverMass() {
  198.         return crAreaOverMass;
  199.     }

  201.     /**
  202.      * Set the object’s Cr x A/m used to propagate the state vector and covariance to TCA.
  203.      * @param CRAreaOverMass object’s Cr x A/m (in m²/kg) value to be set
  204.      */
  205.     public void setCRAreaOverMass(final double CRAreaOverMass) {
  206.         refuseFurtherComments();
  207.         this.crAreaOverMass = CRAreaOverMass;
  208.     }

  210.     /**
  211.      * Get the object’s acceleration due to in-track thrust used to propagate the state vector and covariance to TCA.
  212.      * @return the object’s acceleration (in m/s²) due to in-track thrust
  213.      */
  214.     public double getThrustAcceleration() {
  215.         return thrustAcceleration;
  216.     }

  218.     /**
  219.      * Set the object’s acceleration due to in-track thrust used to propagate the state vector and covariance to TCA.
  220.      * @param thrustAcceleration object’s acceleration (in m/s²) due to in-track thrust
  221.      */
  222.     public void setThrustAcceleration(final double thrustAcceleration) {
  223.         refuseFurtherComments();
  224.         this.thrustAcceleration = thrustAcceleration;
  225.     }

  227.     /**
  228.      * Get the amount of energy being removed from the object’s orbit by atmospheric drag. This value is an average
  229.      * calculated during the OD. SEDR = Specific Energy Dissipation Rate.
  230.      * @return the amount of energy (in W/kg) being removed from the object’s orbit by atmospheric drag
  231.      */
  232.     public double getSedr() {
  233.         return sedr;
  234.     }

  236.     /**
  237.      * Set the amount of energy being removed from the object’s orbit by atmospheric drag. This value is an average
  238.      * calculated during the OD. SEDR = Specific Energy Dissipation Rate.
  239.      * @param SEDR amount of energy (in W/kg) being removed from the object’s orbit by atmospheric drag
  240.      */
  241.     public void setSedr(final double SEDR) {
  242.         refuseFurtherComments();
  243.         this.sedr = SEDR;
  244.     }

  246.     /** Set the minimum area of the object to be used to compute the collision probability.
  247.      * @return the areaPCMin
  248.      */
  249.     public double getAreaPCMin() {
  250.         return areaPCMin;
  251.     }

  253.     /** Get the minimum area of the object to be used to compute the collision probability.
  254.      * @param areaPCMin the areaPCMin to set
  255.      */
  256.     public void setAreaPCMin(final double areaPCMin) {
  257.         this.areaPCMin = areaPCMin;
  258.     }

  260.     /** Get the maximum area of the object to be used to compute the collision probability.
  261.      * @return the areaPCMax
  262.      */
  263.     public double getAreaPCMax() {
  264.         return areaPCMax;
  265.     }

  267.     /** Set the maximum area for the object to be used to compute the collision probability.
  268.      * @param areaPCMax the areaPCMax to set
  269.      */
  270.     public void setAreaPCMax(final double areaPCMax) {
  271.         this.areaPCMax = areaPCMax;
  272.     }

  274.      /** Get the object hard body radius.
  275.      * @return the object hard body radius.
  276.      */
  277.     public double getHbr() {
  278.         return hbr;
  279.     }

  281.     /** Set the object hard body radius.
  282.      * @param hbr the object hard body radius.
  283.      */
  284.     public void setHbr(final double hbr) {
  285.         refuseFurtherComments();
  286.         this.hbr = hbr;
  287.     }

  289.     /** Get the distance of the furthest point in the objects orbit above the equatorial radius of the central body.
  290.      * @return the apoapsisAltitude
  291.      */
  292.     public double getApoapsisAltitude() {
  293.         return apoapsisAltitude;
  294.     }

  296.     /** Set the distance of the furthest point in the objects orbit above the equatorial radius of the central body.
  297.      * @param apoapsisAltitude the apoapsisHeight to set
  298.      */
  299.     public void setApoapsisAltitude(final double apoapsisAltitude) {
  300.         refuseFurtherComments();
  301.         this.apoapsisAltitude = apoapsisAltitude;
  302.     }

  304.     /** Get the distance of the closest point in the objects orbit above the equatorial radius of the central body.
  305.      * @return the periapsissAltitude
  306.      */
  307.     public double getPeriapsissAltitude() {
  308.         return periapsissAltitude;
  309.     }

  311.     /** Set the distance of the closest point in the objects orbit above the equatorial radius of the central body.
  312.      * @param periapsissAltitude the periapsissHeight to set
  313.      */
  314.     public void setPeriapsissAltitude(final double periapsissAltitude) {
  315.         refuseFurtherComments();
  316.         this.periapsissAltitude = periapsissAltitude;
  317.     }

  319.     /** Get the angle between the objects orbit plane and the orbit centers equatorial plane.
  320.      * @return the inclination
  321.      */
  322.     public double getInclination() {
  323.         return inclination;
  324.     }

  326.     /** Set the angle between the objects orbit plane and the orbit centers equatorial plane.
  327.      * @param inclination the inclination to set
  328.      */
  329.     public void setInclination(final double inclination) {
  330.         refuseFurtherComments();
  331.         this.inclination = inclination;
  332.     }

  334.     /** Get the measure of the confidence in the covariance errors matching reality.
  335.      * @return the covConfidence
  336.      */
  337.     public double getCovConfidence() {
  338.         return covConfidence;
  339.     }

  341.     /** Set the measure of the confidence in the covariance errors matching reality.
  342.      * @param covConfidence the covConfidence to set
  343.      */
  344.     public void setCovConfidence(final double covConfidence) {
  345.         refuseFurtherComments();
  346.         this.covConfidence = covConfidence;
  347.     }

  349.     /** Get the method used for the calculation of COV_CONFIDENCE.
  350.      * @return the covConfidenceMethod
  351.      */
  352.     public String getCovConfidenceMethod() {
  353.         return covConfidenceMethod;
  354.     }

  356.     /** Set the method used for the calculation of COV_CONFIDENCE.
  357.      * @param covConfidenceMethod the covConfidenceMethod to set
  358.      */
  359.     public void setCovConfidenceMethod(final String covConfidenceMethod) {
  360.         refuseFurtherComments();

  362.         // Check key condition
  363.         if (Double.isNaN(getCovConfidence())) {
  364.             throw new OrekitException(OrekitMessages.CCSDS_MISSING_KEYWORD, AdditionalParametersKey.COV_CONFIDENCE);
  365.         }

  367.         this.covConfidenceMethod = covConfidenceMethod;
  368.     }
  369. }
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