Package org.orekit.propagation.conversion.osc2mean

Class TLETheory

java.lang.Object

org.orekit.propagation.conversion.osc2mean.TLETheory

All Implemented Interfaces:

MeanTheory

public class TLETheory
extends Object
implements MeanTheory

TLE, i.e. SGP4/SDP4, theory for osculating to mean orbit conversion.

Since:

13.0

Author:

Pascal Parraud

Field Summary

Fields

Modifier and Type	Field	Description
static final String	THEORY	Theory used for converting from osculating to mean orbit.
static final String	TMP_L1	First line of arbitrary TLE.
static final String	TMP_L2	Second line of arbitrary TLE.

Constructor Summary

Constructors

Constructor	Description
TLETheory()	Constructor with default data context and default TLE template.
TLETheory(DataContext dataContext)	Constructor with default TLE template.
TLETheory(FieldTLE<T> template)	Constructor with default data context.
TLETheory(FieldTLE<T> template, DataContext dataContext)	Constructor.
TLETheory(FieldTLE<T> template, TimeScale utc, Frame teme)	Constructor.
TLETheory(TLE template)	Constructor with default data context.
TLETheory(TLE template, DataContext dataContext)	Constructor.
TLETheory(TLE template, TimeScale utc, Frame teme)	Constructor.
TLETheory(TimeScale utc, Frame teme)	Constructor.

Method Summary

Modifier and Type	Method	Description
double	getReferenceRadius()	Gets reference radius of the central body (m).
String	getTheoryName()	Gets the name of the theory used for osculating to mean conversion.
<T extends CalculusFieldElement<T>> FieldOrbit<T>	meanToOsculating(FieldOrbit<T> mean)	Gets osculating orbit from mean orbit.
Orbit	meanToOsculating(Orbit mean)	Gets osculating orbit from mean orbit.
<T extends CalculusFieldElement<T>> FieldOrbit<T>	postprocessing(FieldOrbit<T> osculating, FieldOrbit<T> mean)	Post-treatment of the converted mean orbit.
Orbit	postprocessing(Orbit osculating, Orbit mean)	Post-treatment of the converted mean orbit.
<T extends CalculusFieldElement<T>> FieldOrbit<T>	preprocessing(FieldOrbit<T> osculating)	Pre-treatment of the osculating orbit to be converted.
Orbit	preprocessing(Orbit osculating)	Pre-treatment of the osculating orbit to be converted.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.propagation.conversion.osc2mean.MeanTheory

initialize, initialize

Field Details

TMP_L1

public static final String TMP_L1

First line of arbitrary TLE. Should not impact conversion.

See Also:

• Constant Field Values

TMP_L2

public static final String TMP_L2

Second line of arbitrary TLE. Should not impact conversion.

See Also:

• Constant Field Values

THEORY

public static final String THEORY

Theory used for converting from osculating to mean orbit.

See Also:

• Constant Field Values

Constructor Details

TLETheory

@DefaultDataContext
public TLETheory()

Constructor with default data context and default TLE template.

TLETheory

@DefaultDataContext
public TLETheory(TLE template)

Constructor with default data context.

Parameters:

template - template TLE

TLETheory

@DefaultDataContext
public TLETheory(FieldTLE<T> template)

Constructor with default data context.

Type Parameters:

T - type of the elements

Parameters:

template - template TLE

TLETheory

public TLETheory(DataContext dataContext)

Constructor with default TLE template.

Parameters:

dataContext - data context

TLETheory

public TLETheory(TimeScale utc,
 Frame teme)

Constructor.

Parameters:

utc - UTC scale

teme - TEME frame scale

TLETheory

public TLETheory(TLE template,
 DataContext dataContext)

Constructor.

Parameters:

template - template TLE

dataContext - data context

TLETheory

public TLETheory(TLE template,
 TimeScale utc,
 Frame teme)

Constructor.

Parameters:

template - template TLE

utc - UTC scale

teme - TEME frame scale

TLETheory

public TLETheory(FieldTLE<T> template,
 DataContext dataContext)

Constructor.

Type Parameters:

T - type of the elements

Parameters:

template - template TLE

dataContext - data context

TLETheory

public TLETheory(FieldTLE<T> template,
 TimeScale utc,
 Frame teme)

Constructor.

Type Parameters:

T - type of the elements

Parameters:

template - template TLE

utc - UTC scale

teme - TEME frame scale

Method Details

getTheoryName

public String getTheoryName()

Gets the name of the theory used for osculating to mean conversion.

Specified by:

getTheoryName in interface MeanTheory

Returns:

the actual theory

getReferenceRadius

public double getReferenceRadius()

Gets reference radius of the central body (m).

Specified by:

getReferenceRadius in interface MeanTheory

Returns:

reference radius of the central body

preprocessing

public Orbit preprocessing(Orbit osculating)

Pre-treatment of the osculating orbit to be converted.

The osculating orbit is transformed to TEME frame.

Specified by:

preprocessing in interface MeanTheory

Parameters:

osculating - the osculating orbit to be treated

Returns:

preprocessed osculating orbit

meanToOsculating

public Orbit meanToOsculating(Orbit mean)

Gets osculating orbit from mean orbit.

Specified by:

meanToOsculating in interface MeanTheory

Parameters:

mean - mean orbit

Returns:

osculating orbit

postprocessing

public Orbit postprocessing(Orbit osculating,
 Orbit mean)

Post-treatment of the converted mean orbit.

The mean orbit returned is a Keplerian orbit in TEME frame.

Specified by:

postprocessing in interface MeanTheory

Parameters:

osculating - the osculating orbit to be converted

mean - the converted mean orbit

Returns:

postprocessed mean orbit

preprocessing

public <T extends CalculusFieldElement<T>>
FieldOrbit<T> preprocessing(FieldOrbit<T> osculating)

Pre-treatment of the osculating orbit to be converted.

The osculating orbit is transformed to TEME frame.

Specified by:

preprocessing in interface MeanTheory

Type Parameters:

T - type of the field elements

Parameters:

osculating - the osculating orbit to be treated

Returns:

preprocessed osculating orbit

meanToOsculating

public <T extends CalculusFieldElement<T>>
FieldOrbit<T> meanToOsculating(FieldOrbit<T> mean)

Gets osculating orbit from mean orbit.

Specified by:

meanToOsculating in interface MeanTheory

Type Parameters:

T - type of the field elements

Parameters:

mean - mean orbit

Returns:

osculating orbit

postprocessing

public <T extends CalculusFieldElement<T>>
FieldOrbit<T> postprocessing(FieldOrbit<T> osculating,
 FieldOrbit<T> mean)

Post-treatment of the converted mean orbit.

The mean orbit returned is a Keplerian orbit in TEME frame.

Specified by:

postprocessing in interface MeanTheory

Type Parameters:

T - type of the field elements

Parameters:

osculating - the osculating orbit to be converted

mean - the converted mean orbit

Returns:

postprocessed mean orbit