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EarthGravitationalModel2008 Class

Provides the semimajor axis, gravitational parameter, and 2nd, 3rd, 4th, and 5th zonal harmonic coefficients for the Earth Gravitational Model of 2008 (EGM2008) according to the Journal of Geophysical Research, Vol 117, Issue B4, April 2012.
Inheritance Hierarchy
SystemObject
  AGI.Foundation.CelestialEarthGravitationalModel2008

Namespace:  AGI.Foundation.Celestial
Assembly:  AGI.Foundation.Models (in AGI.Foundation.Models.dll) Version: 25.1.421.0 (25.1.421.0)
Syntax
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public static class EarthGravitationalModel2008

The EarthGravitationalModel2008 type exposes the following members.

Methods
  NameDescription
Public methodStatic memberNormalizationFactor
The normalization factor for the spherical harmonic terms of the specified degree and order. The unnormalized value divided by the normalization factor yields the normalized value.
Public methodStatic memberNormalize
Computes the corresponding normalized value of an unnormalized coefficient.
Public methodStatic memberUnnormalize
Computes the corresponding unnormalized value of a normalized coefficient.
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Fields
  NameDescription
Public fieldStatic memberGravitationalParameter
The gravitational parameter of the Earth in meters cubed per second squared as defined by the EGM2008 model.
Public fieldStatic memberJ2NormalizedValue
The normalized second zonal harmonic coefficient.
Public fieldStatic memberJ2UnnormalizedValue
The non-normalized second zonal harmonic coefficient.
Public fieldStatic memberJ3NormalizedValue
The normalized third zonal harmonic coefficient.
Public fieldStatic memberJ3UnnormalizedValue
The non-normalized third zonal harmonic coefficient.
Public fieldStatic memberJ4NormalizedValue
The normalized fourth zonal harmonic coefficient.
Public fieldStatic memberJ4UnnormalizedValue
The non-normalized fourth zonal harmonic coefficient.
Public fieldStatic memberJ5NormalizedValue
The normalized fifth zonal harmonic coefficient.
Public fieldStatic memberJ5UnnormalizedValue
The non-normalized fifth zonal harmonic coefficient.
Public fieldStatic memberSemimajorAxis
The semimajor axis of the Earth in meters as defined by the EGM2008 model.
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Remarks
By convention, there is a sign difference between the two conventions for expressing the zonal harmonics such that the zonal harmonic coefficient has the opposite sign of the corresponding spherical harmonic coefficient.
See Also