fr.cnes.sirius.patrius.stela.forces.drag

Class StelaVariableDragCoef

java.lang.Object

fr.cnes.sirius.patrius.stela.forces.drag.AbstractStelaDragCoef

fr.cnes.sirius.patrius.stela.forces.drag.StelaVariableDragCoef

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

StelaVariableDispersedDragCoef

public class StelaVariableDragCoef
extends AbstractStelaDragCoef

Class for drag coefficients depending on space object's altitude.

Since:

4.16

Author:

Mathis Guillemette HISTORY VERSION:4.16:OPENFD-468:25/04/2025:[PATRIUS] Renommer toutes les mentions du GeodeticPoint VERSION:4.16:OPENFD-388:25/04/2025:[STELA-PATRIUS] Coefficients de frottement Cook, tabule END-HISTORY

See Also:

Serialized Form

Field Summary

Fields inherited from class fr.cnes.sirius.patrius.stela.forces.drag.AbstractStelaDragCoef

MAXIMUM_FRACTION_DIGITS, stelaDragCoefType

Constructor Summary

Constructors

Modifier	Constructor and Description
	StelaVariableDragCoef(Map<Double,Double> cdMap, double rEq, double f) Constructor for a Cd model depending on spacecraft altitude.
	StelaVariableDragCoef(Map<Double,Double> cdMap, GeodPosition geodeticPosition) Constructor for a Cd model depending on spacecraft altitude.
protected	StelaVariableDragCoef(StelaDragCoefType dragCoefType, Map<Double,Double> cdMap, GeodPosition geodeticPosition) Protected constructor which allow a child different dragCoefType

Method Summary

Modifier and Type	Method and Description
StelaVariableDragCoef	copy() Copy drag coefficient.
Map<Double,Double>	getCdMap() Get the spacecraft drag coefficient map
double	getDragCoef(StelaDragCoefInput stelaDragCoefInput) Compute the value of the Cd coefficient depending on spacecraft altitude.
GeodPosition	getGeodPosition() Get the geodetic model
String	toString()

Methods inherited from class fr.cnes.sirius.patrius.stela.forces.drag.AbstractStelaDragCoef

getDragCoefType, getStatInformation

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

StelaVariableDragCoef

public StelaVariableDragCoef(Map<Double,Double> cdMap,
                             double rEq,
                             double f)

Constructor for a Cd model depending on spacecraft altitude.

Parameters:

cdMap - the map containing the Cd value with respect to the geodetic altitude of the spacecraft

rEq - the Earth radius

f - the Earth flattening

StelaVariableDragCoef

public StelaVariableDragCoef(Map<Double,Double> cdMap,
                             GeodPosition geodeticPosition)

Constructor for a Cd model depending on spacecraft altitude.

Parameters:

cdMap - the map containing the Cd value with respect to the geodetic altitude of the spacecraft

geodeticPosition - the geodetic model

StelaVariableDragCoef

protected StelaVariableDragCoef(StelaDragCoefType dragCoefType,
                                Map<Double,Double> cdMap,
                                GeodPosition geodeticPosition)

Protected constructor which allow a child different dragCoefType

Parameters:

dragCoefType - child class drag coef type

cdMap - the map containing the Cd value with respect to the geodetic altitude of the spacecraft

geodeticPosition - the geodetic model

Method Detail

getCdMap

public Map<Double,Double> getCdMap()

Get the spacecraft drag coefficient map

Returns:

The spacecraft drag coefficient map

getGeodPosition

public GeodPosition getGeodPosition()

Get the geodetic model

Returns:

The geodetic model

getDragCoef

public double getDragCoef(StelaDragCoefInput stelaDragCoefInput)
                   throws PatriusException

Compute the value of the Cd coefficient depending on spacecraft altitude.

Specified by:

getDragCoef in class AbstractStelaDragCoef

Parameters:

stelaDragCoefInput - the input which gives the spacecraft position in the inertial frame

Returns:

the value of the drag coefficient

Throws:

PatriusException - if error while computing geodetic altitude

toString

public String toString()

Overrides:

toString in class Object

copy

public StelaVariableDragCoef copy()

Copy drag coefficient.

Specified by:

copy in class AbstractStelaDragCoef

Returns:

copied drag coefficient