EarthITU834AtmosphereRefraction (OREKIT 13.0-SNAPSHOT API)

java.lang.Object
- org.orekit.models.earth.EarthITU834AtmosphereRefraction

All Implemented Interfaces:

Serializable, AtmosphericRefractionModel
```
public class EarthITU834AtmosphereRefraction
extends Object
implements AtmosphericRefractionModel
```
Implementation of refraction model for Earth exponential atmosphere based on ITU-R P.834-9 recommendation.
Refraction angle is computed according to the International Telecommunication Union recommendation formula. For reference, see ITU-R P.834-9 (December 2017).

Since:

7.1

Author:

Thierry Ceolin

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

EarthITU834AtmosphereRefraction(double altitude)
Creates a new default instance.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`getRefraction(double elevation)`	Compute the refraction angle from the true (geometrical) elevation.
`double`	`getTheta0()`	Get the station elevation angle under free-space propagation .
`double`	`getThetaMin()`	Get the station minimal elevation angle.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - EarthITU834AtmosphereRefraction
```
public EarthITU834AtmosphereRefraction(double altitude)
```
    Creates a new default instance.
    
    Parameters:
    
    altitude - altitude of the ground station from which measurement is performed (m)
- Method Detail
  - getThetaMin
```
public double getThetaMin()
```
    Get the station minimal elevation angle.
    
    Returns:
    
    the minimal elevation angle (rad)
  - getTheta0
```
public double getTheta0()
```
    Get the station elevation angle under free-space propagation .
    
    Returns:
    
    the elevation angle under free-space propagation (rad)
  - getRefraction
```
public double getRefraction(double elevation)
```
    Description copied from interface: AtmosphericRefractionModel
    
    Compute the refraction angle from the true (geometrical) elevation.
    
    Specified by:
    
    getRefraction in interface AtmosphericRefractionModel
    
    Parameters:
    
    elevation - true elevation (rad)
    
    Returns:
    
    refraction angle (rad)