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Questions and Answers
 
Relationship of ITRF with other references
 
What are the transformation parameters between WGS84 and ITRF2000?
Please consult: ftp://itrf.ensg.ign.fr/pub/itrf/WGS84.TXT
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General Information
 
What is the ellipsoid associated with the realizations of ITRS ?
The ITRF solutions do not directly use an ellipsoid. ITRF solutions are specified by cartesian equatorial coordinates X, Y, and Z. If needed they can be transformed to geographical coordinates (Longitude, Latitude and Height) referred to an ellipsoid. In this case the GRS80 ellipsoid is recommended (semi-major axis a=6378137.0 m, eccentricity**2 =0.00669438002290).
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