| Package | Description | 
|---|---|
| agi.foundation.celestial | 
 Contains types used in modeling characteristics of celestial objects and celestial phenomena. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
Iau1980Nutation
Provides Earth Nutation information according to the IAU 1980 model 
 | 
| Modifier and Type | Method and Description | 
|---|---|
NutationModel | 
JplDE.getEarthNutationModel()
Creates a  
NutationModel which uses this JPL DE data for the nutation of the Earth. | 
NutationModel | 
EarthCentralBody.getNutationModel()
Gets the default nutation model used in the FK5 transformation from 
    J2000 to the Fixed frame. 
 | 
static NutationModel | 
IersTechnicalNote21.getUpdated1980NutationModel()
Gets an instance of the nutation model published by the
    IERS in 1996 to modify the fundamental arguments of the
    IAU1980 Nutation theory. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
protected abstract boolean | 
NutationModel.checkForSameDefinition(NutationModel other)
Checks to determine if another instance has the same definition as this instance and
    returns  
true if it does. | 
protected boolean | 
Iau1980Nutation.checkForSameDefinition(NutationModel other)
Checks to determine if another instance has the same definition as this instance and
    returns  
true if it does. | 
void | 
EarthCentralBody.setNutationModel(NutationModel value)
Sets the default nutation model used in the FK5 transformation from 
    J2000 to the Fixed frame. 
 | 
| Constructor and Description | 
|---|
NutationModel(NutationModel existingInstance,
             CopyContext context)
Initializes a new instance as a copy of an existing instance. 
 |