[Proj] triaxial ellipsoid

Charles Karney charles.karney at sri.com
Thu Oct 18 15:52:35 EST 2012

I don't know of any references to help you on this specific question.  I
suggest either looking at the relevant coefficients in the EGM2008
gravity model, or, in order to incorporate the zeta-to-N correction,
compute the needed spherical harmonic components of the geoid height

On 2012-10-18 14:11, Aleksander Yanovskiy wrote:
> Thank you Charles,
> could you please let me ask one more question: please, point me to the publication (if you know any)  where the calculation of the principal axes orientation of the (3,2) (third degree second order zonal harmonics) Earth figure is being discussed ?
>   -Aleksander

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