Package org.orekit.models.earth.atmosphere

Enum Class NRLMSISE00.LocalSolarTimeMode

java.lang.Object

java.lang.Enum<NRLMSISE00.LocalSolarTimeMode>

org.orekit.models.earth.atmosphere.NRLMSISE00.LocalSolarTimeMode

All Implemented Interfaces:

Serializable, Comparable<NRLMSISE00.LocalSolarTimeMode>, Constable

Enclosing class:

NRLMSISE00

public static enum NRLMSISE00.LocalSolarTimeMode
extends Enum<NRLMSISE00.LocalSolarTimeMode>

Convention used to compute the local solar time driving the diurnal density terms.

The NRLMSISE-00 empirical coefficients were fitted using mean local solar time (the reference Fortran driver defines it as stl = sec/3600 + glong/15, i.e. UT plus geographic longitude, with no equation of time). The independent variable fed to the model must therefore use the same convention it was calibrated with; feeding apparent solar time (the true Sun hour angle, which includes the equation of time up to about ±16 min) is inconsistent with that calibration and introduces a spurious seasonal density modulation of a few percent.

Since:

13.1.8

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
APPARENT	Apparent local solar time, computed as the satellite/true-Sun hour angle about Earth's rotation axis.
MEAN	Mean local solar time (UT + geographic longitude), matching the NRLMSISE-00 reference driver.

Method Summary

Modifier and Type	Method	Description
static NRLMSISE00.LocalSolarTimeMode	valueOf(String name)	Returns the enum constant of this class with the specified name.
static NRLMSISE00.LocalSolarTimeMode[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

MEAN

public static final NRLMSISE00.LocalSolarTimeMode MEAN

Mean local solar time (UT + geographic longitude), matching the NRLMSISE-00 reference driver. The Sun position is not used.

APPARENT

public static final NRLMSISE00.LocalSolarTimeMode APPARENT

Apparent local solar time, computed as the satellite/true-Sun hour angle about Earth's rotation axis. Includes the equation of time.

Method Details

values

public static NRLMSISE00.LocalSolarTimeMode[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static NRLMSISE00.LocalSolarTimeMode valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null