Package org.orekit.models.earth.ionosphere.nequick

Class NeQuickParameters

java.lang.Object

org.orekit.models.earth.ionosphere.nequick.NeQuickParameters

public class NeQuickParameters
extends Object

This class performs the computation of the parameters used by the NeQuick model.

Since:

10.1

Author:

Bryan Cazabonne

See Also:

"European Union (2016). European GNSS (Galileo) Open Service-Ionospheric Correction Algorithm for Galileo Single Frequency Users. 1.2.", ITU-R P.531

Constructor Summary

Constructors

Constructor	Description
NeQuickParameters(DateTimeComponents dateTime, double[] flattenF2, double[] flattenFm3, double latitude, double longitude, double az, double modip)	Build a new instance.

Method Summary

Modifier and Type	Method	Description
double	getAzr()	Get effective sunspot number.
double	getB2Bot()	Get the F2 layer thickness parameter (bottom).
double	getBE(double h)	Get the E layer thickness parameter.
double	getBF1(double h)	Get the F1 layer thickness parameter.
DateTimeComponents	getDateTime()	Get current date time components.
double	getFoF2()	Get F2 layer critical frequency.
double	getHmE()	Get the E layer maximum density height.
double	getHmF1()	Get the F1 layer maximum density height.
double	getHmF2()	Get the F2 layer maximum density height.
double[]	getLayerAmplitudes()	Get the F2, F1 and E layer amplitudes.
double	getNmF2()	Get the F2 layer maximum density.

Methods inherited from class java.lang.Object

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

Constructor Detail

NeQuickParameters

public NeQuickParameters(DateTimeComponents dateTime,
                         double[] flattenF2,
                         double[] flattenFm3,
                         double latitude,
                         double longitude,
                         double az,
                         double modip)

Build a new instance.

Parameters:

dateTime - current date time components

flattenF2 - F2 coefficients used by the F2 layer (flatten array)

flattenFm3 - Fm3 coefficients used by the M(3000)F2 layer (flatten array)

latitude - latitude of a point along the integration path, in radians

longitude - longitude of a point along the integration path, in radians

az - effective ionisation level

modip - modip

Method Detail

getDateTime

public DateTimeComponents getDateTime()

Get current date time components.

Returns:

current date time components

Since:

13.0

getAzr

public double getAzr()

Get effective sunspot number.

Returns:

effective sunspot number

Since:

13.0

getFoF2

public double getFoF2()

Get F2 layer critical frequency.

Returns:

F2 layer critical frequency

Since:

13.0

getNmF2

public double getNmF2()

Get the F2 layer maximum density.

Returns:

nmF2

getHmF2

public double getHmF2()

Get the F2 layer maximum density height.

Returns:

hmF2 in km

getHmF1

public double getHmF1()

Get the F1 layer maximum density height.

Returns:

hmF1 in km

getHmE

public double getHmE()

Get the E layer maximum density height.

Returns:

hmE in km

getB2Bot

public double getB2Bot()

Get the F2 layer thickness parameter (bottom).

Returns:

B2Bot in km

getBF1

public double getBF1(double h)

Get the F1 layer thickness parameter.

Parameters:

h - current height (km)

Returns:

B1 in km

Since:

13.0

getBE

public double getBE(double h)

Get the E layer thickness parameter.

Parameters:

h - current height (km)

Returns:

Be in km

Since:

13.0

getLayerAmplitudes

public double[] getLayerAmplitudes()

Get the F2, F1 and E layer amplitudes.

The resulting element is an array having the following form:

• double[0] = A1 → F2 layer amplitude
• double[1] = A2 → F1 layer amplitude
• double[2] = A3 → E layer amplitude

Returns:

layer amplitudes