OrbitPhysicalPropertiesWriter.java
- /* Copyright 2002-2025 CS GROUP
- * Licensed to CS GROUP (CS) under one or more
- * 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
- * the License. You may obtain a copy of the License at
- *
- * 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,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- package org.orekit.files.ccsds.ndm.odm.ocm;
- import java.io.IOException;
- import org.hipparchus.linear.RealMatrix;
- import org.orekit.files.ccsds.definitions.TimeConverter;
- import org.orekit.files.ccsds.definitions.Units;
- import org.orekit.files.ccsds.section.AbstractWriter;
- import org.orekit.files.ccsds.utils.generation.Generator;
- import org.orekit.time.AbsoluteDate;
- import org.orekit.utils.units.Unit;
- /** Writer for physical properties data.
- * @author Luc Maisonobe
- * @since 11.0
- */
- class OrbitPhysicalPropertiesWriter extends AbstractWriter {
- /** Physical properties block. */
- private final OrbitPhysicalProperties phys;
- /** Converter for dates. */
- private final TimeConverter timeConverter;
- /** Create a writer.
- * @param phys physical properties to write
- * @param timeConverter converter for dates
- */
- OrbitPhysicalPropertiesWriter(final OrbitPhysicalProperties phys, final TimeConverter timeConverter) {
- super(OcmDataSubStructureKey.phys.name(), OcmDataSubStructureKey.PHYS.name());
- this.phys = phys;
- this.timeConverter = timeConverter;
- }
- /** {@inheritDoc} */
- @Override
- protected void writeContent(final Generator generator) throws IOException {
- // physical properties block
- generator.writeComments(phys.getComments());
- generator.writeEntry(OrbitPhysicalPropertiesKey.MANUFACTURER.name(), phys.getManufacturer(), null, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.BUS_MODEL.name(), phys.getBusModel(), null, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.DOCKED_WITH.name(), phys.getDockedWith(), false);
- // drag
- generator.writeEntry(OrbitPhysicalPropertiesKey.DRAG_CONST_AREA.name(), phys.getDragConstantArea(), Units.M2, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.DRAG_COEFF_NOM.name(), phys.getDragCoefficient(), Unit.ONE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.DRAG_UNCERTAINTY.name(), phys.getDragUncertainty(), Unit.PERCENT, false);
- // mass
- generator.writeEntry(OrbitPhysicalPropertiesKey.INITIAL_WET_MASS.name(), phys.getInitialWetMass(), Unit.KILOGRAM, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.WET_MASS.name(), phys.getWetMass(), Unit.KILOGRAM, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.DRY_MASS.name(), phys.getDryMass(), Unit.KILOGRAM, false);
- // Optimally Enclosing Box
- generator.writeEntry(OrbitPhysicalPropertiesKey.OEB_PARENT_FRAME.name(), phys.getOebParentFrame().getName(), null, false);
- final AbsoluteDate oebParentFrameEpoch = phys.getOebParentFrameEpoch();
- // oebParentFrameEpoch may be null. Usually checked in writeEntry(...)
- if (!timeConverter.getReferenceDate().equals(oebParentFrameEpoch) &&
- phys.getOebParentFrame().asOrbitRelativeFrame() == null &&
- phys.getOebParentFrame().asSpacecraftBodyFrame() == null) {
- generator.writeEntry(OrbitPhysicalPropertiesKey.OEB_PARENT_FRAME_EPOCH.name(), timeConverter, oebParentFrameEpoch, true, false);
- }
- generator.writeEntry(OrbitPhysicalPropertiesKey.OEB_Q1.name(), phys.getOebQ().getQ1(), Unit.ONE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.OEB_Q2.name(), phys.getOebQ().getQ2(), Unit.ONE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.OEB_Q3.name(), phys.getOebQ().getQ3(), Unit.ONE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.OEB_QC.name(), phys.getOebQ().getQ0(), Unit.ONE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.OEB_MAX.name(), phys.getOebMax(), Unit.METRE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.OEB_INT.name(), phys.getOebIntermediate(), Unit.METRE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.OEB_MIN.name(), phys.getOebMin(), Unit.METRE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.AREA_ALONG_OEB_MAX.name(), phys.getOebAreaAlongMax(), Units.M2, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.AREA_ALONG_OEB_INT.name(), phys.getOebAreaAlongIntermediate(), Units.M2, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.AREA_ALONG_OEB_MIN.name(), phys.getOebAreaAlongMin(), Units.M2, false);
- // collision probability
- generator.writeEntry(OrbitPhysicalPropertiesKey.AREA_MIN_FOR_PC.name(), phys.getMinAreaForCollisionProbability(), Units.M2, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.AREA_MAX_FOR_PC.name(), phys.getMaxAreaForCollisionProbability(), Units.M2, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.AREA_TYP_FOR_PC.name(), phys.getTypAreaForCollisionProbability(), Units.M2, false);
- // radar cross section
- generator.writeEntry(OrbitPhysicalPropertiesKey.RCS.name(), phys.getRcs(), Units.M2, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.RCS_MIN.name(), phys.getMinRcs(), Units.M2, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.RCS_MAX.name(), phys.getMaxRcs(), Units.M2, false);
- // solar radiation pressure
- generator.writeEntry(OrbitPhysicalPropertiesKey.SRP_CONST_AREA.name(), phys.getSrpConstantArea(), Units.M2, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.SOLAR_RAD_COEFF.name(), phys.getSrpCoefficient(), Unit.ONE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.SOLAR_RAD_UNCERTAINTY.name(), phys.getSrpUncertainty(), Unit.PERCENT, false);
- // visual magnitude
- generator.writeEntry(OrbitPhysicalPropertiesKey.VM_ABSOLUTE.name(), phys.getVmAbsolute(), Unit.ONE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.VM_APPARENT_MIN.name(), phys.getVmApparentMin(), Unit.ONE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.VM_APPARENT.name(), phys.getVmApparent(), Unit.ONE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.VM_APPARENT_MAX.name(), phys.getVmApparentMax(), Unit.ONE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.REFLECTANCE.name(), phys.getReflectance(), Unit.ONE, false);
- // attitude
- generator.writeEntry(OrbitPhysicalPropertiesKey.ATT_CONTROL_MODE.name(), phys.getAttitudeControlMode(), null, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.ATT_ACTUATOR_TYPE.name(), phys.getAttitudeActuatorType(), null, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.ATT_KNOWLEDGE.name(), phys.getAttitudeKnowledgeAccuracy(), Unit.DEGREE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.ATT_CONTROL.name(), phys.getAttitudeControlAccuracy(), Unit.DEGREE, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.ATT_POINTING.name(), phys.getAttitudePointingAccuracy(), Unit.DEGREE, false);
- // maneuvers
- generator.writeEntry(OrbitPhysicalPropertiesKey.AVG_MANEUVER_FREQ.name(), phys.getManeuversFrequency(), Units.NB_PER_Y, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.MAX_THRUST.name(), phys.getMaxThrust(), Unit.NEWTON, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.DV_BOL.name(), phys.getBolDv(), Units.KM_PER_S, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.DV_REMAINING.name(), phys.getRemainingDv(), Units.KM_PER_S, false);
- // inertia
- final RealMatrix inertia = phys.getInertiaMatrix();
- if (inertia != null) {
- generator.writeEntry(OrbitPhysicalPropertiesKey.IXX.name(), inertia.getEntry(0, 0), Units.KG_M2, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.IYY.name(), inertia.getEntry(1, 1), Units.KG_M2, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.IZZ.name(), inertia.getEntry(2, 2), Units.KG_M2, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.IXY.name(), inertia.getEntry(0, 1), Units.KG_M2, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.IXZ.name(), inertia.getEntry(0, 2), Units.KG_M2, false);
- generator.writeEntry(OrbitPhysicalPropertiesKey.IYZ.name(), inertia.getEntry(1, 2), Units.KG_M2, false);
- }
- }
- }