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

Class StelaVariableDispersedDragCoef

java.lang.Object

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

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

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

All Implemented Interfaces:

Serializable

public class StelaVariableDispersedDragCoef
extends StelaVariableDragCoef

Class for drag coefficients depending on space object's height, with a multiplicative coefficient applied to the read drag coefficients.

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

Constructor and Description
StelaVariableDispersedDragCoef(Map<Double,Double> cdMap, double rEq, double f) Constructor with default coefficient = 1
StelaVariableDispersedDragCoef(Map<Double,Double> cdMap, double rEq, double f, double coef) Constructor for a Cd model depending on spacecraft altitude.
StelaVariableDispersedDragCoef(Map<Double,Double> cdMap, GeodPosition geodeticPosition, double coef) Constructor for a Cd model depending on spacecraft altitude with a GeodPosition.

Method Summary

Modifier and Type	Method and Description
StelaVariableDispersedDragCoef	copy() Copy drag coefficient.
double	getCoef() Get the coefficient of the variable drag coef.
double	getDragCoef(StelaDragCoefInput stelaDragCoefInput) Compute the value of the Cd coefficient depending on spacecraft altitude and the dispersed coefficient.
String	getStatInformation() Get statistical coefficient information.
String	toString()

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

getCdMap, getGeodPosition

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

StelaVariableDispersedDragCoef

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

Constructor with default coefficient = 1

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

StelaVariableDispersedDragCoef

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

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

coef - the coefficient applied to the drag coef

StelaVariableDispersedDragCoef

public StelaVariableDispersedDragCoef(Map<Double,Double> cdMap,
                                      GeodPosition geodeticPosition,
                                      double coef)

Constructor for a Cd model depending on spacecraft altitude with a GeodPosition.

Parameters:

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

geodeticPosition - the geodetic model

coef - the coefficient applied to the drag coef

Method Detail

getDragCoef

public double getDragCoef(StelaDragCoefInput stelaDragCoefInput)
                   throws PatriusException

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

Overrides:

getDragCoef in class StelaVariableDragCoef

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

copy

public StelaVariableDispersedDragCoef copy()

Copy drag coefficient.

Overrides:

copy in class StelaVariableDragCoef

Returns:

copied drag coefficient

getCoef

public double getCoef()

Get the coefficient of the variable drag coef.

Returns:

the coefficient of the variable drag coef.

toString

public String toString()

Overrides:

toString in class StelaVariableDragCoef

getStatInformation

public String getStatInformation()

Get statistical coefficient information.

Returns:

statistical coefficient information