fr.cnes.sirius.patrius.forces.radiation

Class KnockeRiesModel

java.lang.Object

fr.cnes.sirius.patrius.forces.radiation.KnockeRiesModel

All Implemented Interfaces:

IEmissivityModel

public final class KnockeRiesModel
extends Object
implements IEmissivityModel

Since:

1.2

Version:

$Id: KnockeRiesModel.java 17582 2017-05-10 12:58:16Z bignon $

Author:

ClaudeD

Description :

Earth emissivity of the Knocke-Ries model (albedo and infrared)

Concurrency :

immutable

Field Summary

Fields

Modifier and Type	Field and Description
static double	A0 coefficient a0 of Knocke-Ries model.
static double	A2 coefficient a2 of Knocke-Ries model.
static double	C1AL coefficient c1al of Knocke-Ries model.
static double	C1IR coefficient c1ir of Knocke-Ries model.
static double	D0 coefficient a0 of Knocke-Ries model.
static double	DAYSYEAR duration of a year (in days).
static double	E2 coefficient a2 of Knocke-Ries model.
static AbsoluteDate	REFDAY reference day of Knocke-Ries model.

Constructor Summary

Constructors

Constructor and Description
KnockeRiesModel()

Method Summary

Modifier and Type	Method and Description
double[]	getEmissivity(AbsoluteDate cdate, double latitude, double longitude) Computing of the emissivities of earth (albedo and infrared) based of the Knocke-Reis model (the longitude is not used in this model) See Obelix Reference manuel (NT-07-1)

Methods inherited from class java.lang.Object

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

Field Detail

A0

public static final double A0

coefficient a0 of Knocke-Ries model.

See Also:

Constant Field Values

A2

public static final double A2

coefficient a2 of Knocke-Ries model.

See Also:

Constant Field Values

C1AL

public static final double C1AL

coefficient c1al of Knocke-Ries model.

See Also:

Constant Field Values

D0

public static final double D0

coefficient a0 of Knocke-Ries model.

See Also:

Constant Field Values

E2

public static final double E2

coefficient a2 of Knocke-Ries model.

See Also:

Constant Field Values

C1IR

public static final double C1IR

coefficient c1ir of Knocke-Ries model.

See Also:

Constant Field Values

REFDAY

public static final AbsoluteDate REFDAY

reference day of Knocke-Ries model.

DAYSYEAR

public static final double DAYSYEAR

duration of a year (in days).

See Also:

Constant Field Values

Constructor Detail

KnockeRiesModel

public KnockeRiesModel()

Method Detail

getEmissivity

public double[] getEmissivity(AbsoluteDate cdate,
                              double latitude,
                              double longitude)

Computing of the emissivities of earth (albedo and infrared) based of the Knocke-Reis model (the longitude is not used in this model)

See Obelix Reference manuel (NT-07-1)

Specified by:

getEmissivity in interface IEmissivityModel

Parameters:

cdate - current date

latitude - (rad) geocentric latitude. The angle between the radius (from centre to the point on the surface) and the equatorial plane

longitude - (rad) geocentric longitude

Returns:

albedo emissivity (emissivity[0]) and infrared emissivity (emissivity[1])

Since:

1.2