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SphericalHarmonicGravityModel Class

Contains the coefficient data for a gravity model, either specified upon construction or read in from a file. This type is passed to a SphericalHarmonicGravityField which down selects to the desired subset of this full model, and sets other configuration options. The field is then used by SphericalHarmonicGravity in order to calculate the gravitational force.
Inheritance Hierarchy
SystemObject
  AGI.Foundation.CelestialSphericalHarmonicGravityModel

Namespace:  AGI.Foundation.Celestial
Assembly:  AGI.Foundation.OrbitPropagation (in AGI.Foundation.OrbitPropagation.dll) Version: 24.2.419.0 (24.2.419.0)
Syntax
public class SphericalHarmonicGravityModel

The SphericalHarmonicGravityModel type exposes the following members.

Constructors
  NameDescription
Public methodSphericalHarmonicGravityModel
Initializes a new instance.
Public methodSphericalHarmonicGravityModel(String, String, Double, Double, Double, Double, Double, Boolean, Boolean)
Initializes a new instance.
Public methodSphericalHarmonicGravityModel(String, String, Double, Double, Double, Double, Double, Boolean, Boolean, SphericalHarmonicGravitySecularVariations)
Initializes a new instance.
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Properties
  NameDescription
Public propertyCentralBodyName
Gets or sets the name of the central body described by the model.
Public propertyCosineCoefficients
Gets the list of this model's Cosine coefficients (m= [1, L])
Public propertyFileDegree
Gets or sets the maximum degree of the gravitation coefficients defined by the .grv file.
Public propertyFileOrder
Gets or sets the maximum order of the gravitation coefficients defined by the .grv file.
Public propertyGravitationalParameter
Gets or sets the gravitational parameter of the central body.
Public propertyIncludesPermanentTides
Gets or sets a value indicating whether the coefficients of the gravity model include permanent tides.
Public propertyModelName
Gets or sets the name of the gravity model being used.
Public propertyNormalized
Gets or sets a value indicating whether the coefficients of the gravity model are normalized.
Public propertyReferenceDistance
Gets or sets the reference distance of the central body.
Public propertySecularVariations
Gets or sets the linear model for the secular variations of this gravity model.
Public propertySineCoefficients
Gets the list of this model's Sine coefficients (m= [1, L])
Public propertyZonalCoefficients
Gets the list of this model's zonal coefficients (cosine coefficients for m=0).
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Methods
  NameDescription
Public methodStatic memberCreateEarthPermanentTideCoefficients
Creates a set of the default IERS 2003 permanent tide coefficients for Earth. These are identical to those created by the default constructor of PermanentSolidTideModel.
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Public methodStatic memberReadFrom(String)
Reads the gravity model information in from a file (most likely a .grv) and returns a SphericalHarmonicGravityModel.
Public methodStatic memberReadFrom(TextReader)
Reads the gravity model information in from a TextReader and returns a SphericalHarmonicGravityModel
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
Public methodWithoutEarthPermanentTides
Removes the IERS2003 Earth permanent tide contributions so that a time-varying tide model can be applied instead.
Public methodWithoutPermanentTides
Removes the permanent tide contributions so that a time-varying tide model can be applied instead.
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See Also