IERSConventions (ORbit Extrapolation KIT 9.3.1 API)

java.lang.Object
- java.lang.Enum<IERSConventions>
- - org.orekit.utils.IERSConventions

All Implemented Interfaces:

Serializable, Comparable<IERSConventions>
```
public enum IERSConventions
extends Enum<IERSConventions>
```
Supported IERS conventions.

Since:

6.0

Author:

Luc Maisonobe

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static interface`	`IERSConventions.NutationCorrectionConverter`	Interface for functions converting nutation corrections between δΔψ/δΔε to δX/δY.

Enum Constant Summary

Enum Constants
Enum Constant Description

IERS_1996
Constant for IERS 1996 conventions.

IERS_2003
Constant for IERS 2003 conventions.

IERS_2010
Constant for IERS 2010 conventions.

Enum Constants
Enum Constant	Description
`IERS_1996`	Constant for IERS 1996 conventions.
`IERS_2003`	Constant for IERS 2003 conventions.
`IERS_2010`	Constant for IERS 2010 conventions.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`evaluateTC(AbsoluteDate date)`	Evaluate the date offset between the current date and the `reference date`.
`<T extends org.hipparchus.RealFieldElement<T>> T`	`evaluateTC(FieldAbsoluteDate<T> date)`	Evaluate the date offset between the current date and the `reference date`.
`TimeScalarFunction`	`getEarthOrientationAngleFunction(TimeScale ut1)`	Get the function computing the raw Earth Orientation Angle.
`abstract TimeVectorFunction`	`getEOPTidalCorrection()`	Get the function computing tidal corrections for Earth Orientation Parameters.
`abstract TimeScalarFunction`	`getGASTFunction(TimeScale ut1, EOPHistory eopHistory)`	Get the function computing Greenwich apparent sidereal time, in radians.
`abstract TimeScalarFunction`	`getGMSTFunction(TimeScale ut1)`	Get the function computing Greenwich mean sidereal time, in radians.
`abstract TimeScalarFunction`	`getGMSTRateFunction(TimeScale ut1)`	Get the function computing Greenwich mean sidereal time rate, in radians per second.
`abstract LoveNumbers`	`getLoveNumbers()`	Get the Love numbers.
`abstract TimeScalarFunction`	`getMeanObliquityFunction()`	Get the function computing mean obliquity of the ecliptic.
`abstract double[]`	`getNominalTidalDisplacement()`	Get the nominal values of the displacement numbers.
`abstract FundamentalNutationArguments`	`getNutationArguments(TimeScale timeScale)`	Get the fundamental nutation arguments.
`IERSConventions.NutationCorrectionConverter`	`getNutationCorrectionConverter()`	Create a function converting nutation corrections between δX/δY and δΔψ/δΔε.
`abstract TimeVectorFunction`	`getNutationFunction()`	Get the function computing the nutation angles.
`AbsoluteDate`	`getNutationReferenceEpoch()`	Get the reference epoch for fundamental nutation arguments.
`abstract TimeVectorFunction`	`getOceanPoleTide(EOPHistory eopHistory)`	Get the function computing ocean pole tide (ΔC₂₁, ΔS₂₁).
`abstract double`	`getPermanentTide()`	Get the permanent tide to be removed from ΔC₂₀ when zero-tide potentials are used.
`abstract TimeVectorFunction`	`getPrecessionFunction()`	Get the function computing the precession angles.
`abstract TimeVectorFunction`	`getSolidPoleTide(EOPHistory eopHistory)`	Get the function computing solid pole tide (ΔC₂₁, ΔS₂₁).
`abstract PoissonSeries.CompiledSeries`	`getTidalDisplacementFrequencyCorrectionDiurnal()`	Get the correction function for tidal displacement for diurnal tides.
`protected static PoissonSeries.CompiledSeries`	`getTidalDisplacementFrequencyCorrectionDiurnal(String tableName, int cols, int rIp, int rOp, int tIp, int tOp)`	Get the correction function for tidal displacement for diurnal tides.
`abstract PoissonSeries.CompiledSeries`	`getTidalDisplacementFrequencyCorrectionZonal()`	Get the correction function for tidal displacement for zonal tides.
`protected static PoissonSeries.CompiledSeries`	`getTidalDisplacementFrequencyCorrectionZonal(String tableName, int cols, int rIp, int rOp, int tIp, int tOp)`	Get the correction function for tidal displacement for zonal tides.
`abstract TimeVectorFunction`	`getTideFrequencyDependenceFunction(TimeScale ut1)`	Get the function computing frequency dependent terms (ΔC₂₀, ΔC₂₁, ΔS₂₁, ΔC₂₂, ΔS₂₂).
`abstract TimeVectorFunction`	`getXYSpXY2Function()`	Get the function computing the Celestial Intermediate Pole and Celestial Intermediate Origin components.
`protected LoveNumbers`	`loadLoveNumbers(String nameLove)`	Load the Love numbers.
`static IERSConventions`	`valueOf(String name)`	Returns the enum constant of this type with the specified name.
`static IERSConventions[]`	`values()`	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - IERS_1996
```
public static final IERSConventions IERS_1996
```
    Constant for IERS 1996 conventions.
  - IERS_2003
```
public static final IERSConventions IERS_2003
```
    Constant for IERS 2003 conventions.
  - IERS_2010
```
public static final IERSConventions IERS_2010
```
    Constant for IERS 2010 conventions.
- Method Detail
  - values
```
public static IERSConventions[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
```
for (IERSConventions c : IERSConventions.values())
    System.out.println(c);
```
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static IERSConventions valueOf(String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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 type has no constant with the specified name
    
    NullPointerException - if the argument is null
  - getNutationReferenceEpoch
```
public AbsoluteDate getNutationReferenceEpoch()
```
    Get the reference epoch for fundamental nutation arguments.
    
    Returns:
    
    reference epoch for fundamental nutation arguments
    
    Since:
    
    6.1
  - evaluateTC
```
public double evaluateTC(AbsoluteDate date)
```
    Evaluate the date offset between the current date and the reference date.
    
    Parameters:
    
    date - current date
    
    Returns:
    
    date offset in Julian centuries
    
    Since:
    
    6.1
  - evaluateTC
```
public <T extends org.hipparchus.RealFieldElement<T>> T evaluateTC(FieldAbsoluteDate<T> date)
```
    Evaluate the date offset between the current date and the reference date.
    
    Type Parameters:
    
    T - type of the field elements
    
    Parameters:
    
    date - current date
    
    Returns:
    
    date offset in Julian centuries
    
    Since:
    
    9.0
  - getNutationArguments
```
public abstract FundamentalNutationArguments getNutationArguments(TimeScale timeScale)
```
    Get the fundamental nutation arguments.
    
    Parameters:
    
    timeScale - time scale for computing Greenwich Mean Sidereal Time (typically UT1)
    
    Returns:
    
    fundamental nutation arguments
    
    Since:
    
    6.1
  - getMeanObliquityFunction
```
public abstract TimeScalarFunction getMeanObliquityFunction()
```
    Get the function computing mean obliquity of the ecliptic.
    
    Returns:
    
    function computing mean obliquity of the ecliptic
    
    Since:
    
    6.1
  - getXYSpXY2Function
```
public abstract TimeVectorFunction getXYSpXY2Function()
```
    Get the function computing the Celestial Intermediate Pole and Celestial Intermediate Origin components.
    The returned function computes the two X, Y components of CIP and the S+XY/2 component of the non-rotating CIO.
    
    Returns:
    
    function computing the Celestial Intermediate Pole and Celestial Intermediate Origin components
    
    Since:
    
    6.1
  - getEarthOrientationAngleFunction
```
public TimeScalarFunction getEarthOrientationAngleFunction(TimeScale ut1)
```
    Get the function computing the raw Earth Orientation Angle.
    The raw angle does not contain any correction. If for example dTU1 correction due to tidal effect is desired, it must be added afterward by the caller. The returned value contain the angle as the value and the angular rate as the first derivative.
    
    Parameters:
    
    ut1 - UT1 time scale
    
    Returns:
    
    function computing the rawEarth Orientation Angle, in the non-rotating origin paradigm
    
    Since:
    
    6.1
  - getPrecessionFunction
```
public abstract TimeVectorFunction getPrecessionFunction()
```
    Get the function computing the precession angles.
    The function returned computes the three precession angles ψ_A (around Z axis), ω_A (around X axis) and χ_A (around Z axis). The constant angle ε₀ for the fourth rotation (around X axis) can be retrieved by evaluating the function returned by getMeanObliquityFunction() at nutation reference epoch.
    
    Returns:
    
    function computing the precession angle
    
    Since:
    
    6.1
  - getNutationFunction
```
public abstract TimeVectorFunction getNutationFunction()
```
    Get the function computing the nutation angles.
    The function returned computes the two classical angles ΔΨ and Δε, and the correction to the equation of equinoxes introduced since 1997-02-27 by IAU 1994 resolution C7 (the correction is forced to 0 before this date)
    
    Returns:
    
    function computing the nutation in longitude ΔΨ and Δε and the correction of equation of equinoxes
    
    Since:
    
    6.1
  - getGMSTFunction
```
public abstract TimeScalarFunction getGMSTFunction(TimeScale ut1)
```
    Get the function computing Greenwich mean sidereal time, in radians.
    
    Parameters:
    
    ut1 - UT1 time scale
    
    Returns:
    
    function computing Greenwich mean sidereal time
    
    Since:
    
    6.1
  - getGMSTRateFunction
```
public abstract TimeScalarFunction getGMSTRateFunction(TimeScale ut1)
```
    Get the function computing Greenwich mean sidereal time rate, in radians per second.
    
    Parameters:
    
    ut1 - UT1 time scale
    
    Returns:
    
    function computing Greenwich mean sidereal time rate
    
    Since:
    
    9.0
  - getGASTFunction
```
public abstract TimeScalarFunction getGASTFunction(TimeScale ut1,
                                                   EOPHistory eopHistory)
```
    Get the function computing Greenwich apparent sidereal time, in radians.
    
    Parameters:
    
    ut1 - UT1 time scale
    
    eopHistory - EOP history
    
    Returns:
    
    function computing Greenwich apparent sidereal time
    
    Since:
    
    6.1
  - getEOPTidalCorrection
```
public abstract TimeVectorFunction getEOPTidalCorrection()
```
    Get the function computing tidal corrections for Earth Orientation Parameters.
    
    Returns:
    
    function computing tidal corrections for Earth Orientation Parameters, for xp, yp, ut1 and lod respectively
    
    Since:
    
    6.1
  - getLoveNumbers
```
public abstract LoveNumbers getLoveNumbers()
```
    Get the Love numbers.
    
    Returns:
    
    Love numbers
    
    Since:
    
    6.1
  - getTideFrequencyDependenceFunction
```
public abstract TimeVectorFunction getTideFrequencyDependenceFunction(TimeScale ut1)
```
    Get the function computing frequency dependent terms (ΔC₂₀, ΔC₂₁, ΔS₂₁, ΔC₂₂, ΔS₂₂).
    
    Parameters:
    
    ut1 - UT1 time scale
    
    Returns:
    
    frequency dependence model for tides computation (ΔC₂₀, ΔC₂₁, ΔS₂₁, ΔC₂₂, ΔS₂₂).
    
    Since:
    
    6.1
  - getPermanentTide
```
public abstract double getPermanentTide()
```
    Get the permanent tide to be removed from ΔC₂₀ when zero-tide potentials are used.
    
    Returns:
    
    permanent tide to remove
  - getSolidPoleTide
```
public abstract TimeVectorFunction getSolidPoleTide(EOPHistory eopHistory)
```
    Get the function computing solid pole tide (ΔC₂₁, ΔS₂₁).
    
    Parameters:
    
    eopHistory - EOP history
    
    Returns:
    
    model for solid pole tide (ΔC₂₀, ΔC₂₁, ΔS₂₁, ΔC₂₂, ΔS₂₂).
    
    Since:
    
    6.1
  - getOceanPoleTide
```
public abstract TimeVectorFunction getOceanPoleTide(EOPHistory eopHistory)
```
    Get the function computing ocean pole tide (ΔC₂₁, ΔS₂₁).
    
    Parameters:
    
    eopHistory - EOP history
    
    Returns:
    
    model for ocean pole tide (ΔC₂₀, ΔC₂₁, ΔS₂₁, ΔC₂₂, ΔS₂₂).
    
    Since:
    
    6.1
  - getNominalTidalDisplacement
```
public abstract double[] getNominalTidalDisplacement()
```
    Get the nominal values of the displacement numbers.
    
    Returns:
    
    an array containing h⁽⁰⁾, h⁽²⁾, h₃, hI diurnal, hI semi-diurnal, l⁽⁰⁾, l⁽¹⁾ diurnal, l⁽¹⁾ semi-diurnal, l⁽²⁾, l₃, lI diurnal, lI semi-diurnal, H₀ permanent deformation amplitude
    
    Since:
    
    9.1
  - getTidalDisplacementFrequencyCorrectionDiurnal
```
public abstract PoissonSeries.CompiledSeries getTidalDisplacementFrequencyCorrectionDiurnal()
```
    Get the correction function for tidal displacement for diurnal tides.
    - f[0]: radial correction, longitude cosine part
    - f[1]: radial correction, longitude sine part
    - f[2]: North correction, longitude cosine part
    - f[3]: North correction, longitude sine part
    - f[4]: East correction, longitude cosine part
    - f[5]: East correction, longitude sine part
    Returns:
    
    correction function for tidal displacement
    
    Since:
    
    9.1
  - getTidalDisplacementFrequencyCorrectionDiurnal
```
protected static PoissonSeries.CompiledSeries getTidalDisplacementFrequencyCorrectionDiurnal(String tableName,
                                                                                             int cols,
                                                                                             int rIp,
                                                                                             int rOp,
                                                                                             int tIp,
                                                                                             int tOp)
```
    Get the correction function for tidal displacement for diurnal tides.
    - f[0]: radial correction, longitude cosine part
    - f[1]: radial correction, longitude sine part
    - f[2]: North correction, longitude cosine part
    - f[3]: North correction, longitude sine part
    - f[4]: East correction, longitude cosine part
    - f[5]: East correction, longitude sine part
    Parameters:
    
    tableName - name for the diurnal tides table
    
    cols - total number of columns of the diurnal tides table
    
    rIp - column holding ∆Rf(ip) in the diurnal tides table, counting from 1
    
    rOp - column holding ∆Rf(op) in the diurnal tides table, counting from 1
    
    tIp - column holding ∆Tf(ip) in the diurnal tides table, counting from 1
    
    tOp - column holding ∆Tf(op) in the diurnal tides table, counting from 1
    
    Returns:
    
    correction function for tidal displacement for diurnal tides
    
    Since:
    
    9.1
  - getTidalDisplacementFrequencyCorrectionZonal
```
public abstract PoissonSeries.CompiledSeries getTidalDisplacementFrequencyCorrectionZonal()
```
    Get the correction function for tidal displacement for zonal tides.
    - f[0]: radial correction
    - f[1]: North correction
    Returns:
    
    correction function for tidal displacement
    
    Since:
    
    9.1
  - getTidalDisplacementFrequencyCorrectionZonal
```
protected static PoissonSeries.CompiledSeries getTidalDisplacementFrequencyCorrectionZonal(String tableName,
                                                                                           int cols,
                                                                                           int rIp,
                                                                                           int rOp,
                                                                                           int tIp,
                                                                                           int tOp)
```
    Get the correction function for tidal displacement for zonal tides.
    - f[0]: radial correction
    - f[1]: North correction
    Parameters:
    
    tableName - name for the zonal tides table
    
    cols - total number of columns of the table
    
    rIp - column holding ∆Rf(ip) in the table, counting from 1
    
    rOp - column holding ∆Rf(op) in the table, counting from 1
    
    tIp - column holding ∆Tf(ip) in the table, counting from 1
    
    tOp - column holding ∆Tf(op) in the table, counting from 1
    
    Returns:
    
    correction function for tidal displacement for zonal tides
    
    Since:
    
    9.1
  - getNutationCorrectionConverter
```
public IERSConventions.NutationCorrectionConverter getNutationCorrectionConverter()
```
    Create a function converting nutation corrections between δX/δY and δΔψ/δΔε.
    - δX/δY nutation corrections are used with the Non-Rotating Origin paradigm.
    - δΔψ/δΔε nutation corrections are used with the equinox-based paradigm.
    Returns:
    
    a new converter
    
    Since:
    
    6.1
  - loadLoveNumbers
```
protected LoveNumbers loadLoveNumbers(String nameLove)
```
    Load the Love numbers.
    
    Parameters:
    
    nameLove - name of the Love number resource
    
    Returns:
    
    Love numbers

Enum IERSConventions

Nested Class Summary

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

IERS_1996

IERS_2003

IERS_2010

Method Detail

values

valueOf

getNutationReferenceEpoch

evaluateTC

evaluateTC

getNutationArguments

getMeanObliquityFunction

getXYSpXY2Function

getEarthOrientationAngleFunction

getPrecessionFunction

getNutationFunction

getGMSTFunction

getGMSTRateFunction

getGASTFunction

getEOPTidalCorrection

getLoveNumbers

getTideFrequencyDependenceFunction

getPermanentTide

getSolidPoleTide

getOceanPoleTide

getNominalTidalDisplacement

getTidalDisplacementFrequencyCorrectionDiurnal

getTidalDisplacementFrequencyCorrectionDiurnal

getTidalDisplacementFrequencyCorrectionZonal

getTidalDisplacementFrequencyCorrectionZonal

getNutationCorrectionConverter

loadLoveNumbers