GeodesyData

GeodesyData["name","property"] gives the value of the specified property for a named geodetic datum or reference ellipsoid.

GeodesyData[{a,b},"property"] gives the value of the property for the ellipsoid with semimajor axis a and semiminor axis b.

GeodesyData[obj,{"property",coords}] gives the value of the property at the specified coordinates.

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