Geodetic Model
The following elements comprise the Geodetic Model:
	Horizontal Datum Name, mandatory if applicable the identification given to the reference system used for defining the coordinates of points. Valid Domains include: "North American Datum of 1927 | North American Datum of 1983 | free text"
	Ellipsoid Name, mandatory identification given to established representations of the Earth's shape. Valid Domains include: "Clarke 1866 | Geodetic Reference System 80 | free text"
	Semi-major Axis, mandatory radius of the equatorial axis of the ellipsoid. Semi-major Axis must be greater than 0.0
	Denominator of Flattening Ratio, mandatory the denominator of the ratio of the difference between the equatorial and polar radii of the ellipsoid when the numerator is set to 1. Denominator of Flattening must be greater than 0.0
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