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St. Helena Tritan
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Geographic 3D CRS used in St Helena - St Helena Island

St. Helena Tritan is a geographic 3D CRS last revised on January 25, 2021 and is suitable for use in St Helena, Ascension and Tristan da Cunha - St Helena Island - onshore. St. Helena Tritan uses the St. Helena Tritan as its datum. St. Helena Tritan is a CRS for Engineering surveys including Airport and Ruperts Wharf construction. It was defined by information from St. Helena Government, Environment and Natural Resources Directorate (ENRD).. Closely aligned to SHGD2015 (CRS code 7885) with difference attributable to different reference epoch and 10 cm difference in ellipsoid height. Replaced by SHGD2015 from 2015.

St. Helena Tritan Open in New Tab
Geographic 3D CRS Details
Name:St. Helena Tritan
CRS Type:geographic 3D
Area Of Use: St Helena - St Helena IslandOpen
Datum: St. Helena TritanOpen
Coordinate System:Ellipsoidal 3D CS. Axes: latitude, longitude, ellipsoidal height. Orientations: north, east, up. UoM: degree, degree, metre.
Base Geographic CRS:St. Helena Tritan Open in New Tab
Projection:geocentric to geographic3DOpen in New Tab