• St. Helena Vertical Datum 2015

  EPSG:1177
  Area of use: St Helena, Ascension and Tristan da Cunha - St Helena Island - onshore.
  

• St. Helena Tritan Vertical Datum 2011

  EPSG:1176
  Area of use: St Helena, Ascension and Tristan da Cunha - St Helena Island - onshore.
  

• Jamestown 1971

  EPSG:1175
  Area of use: St Helena, Ascension and Tristan da Cunha - St Helena Island - onshore.
  

• 1

Type of results

• Coordinate reference systems (27)

•    Projected (5)
•    Geodetic (6)
•    Geodetic 3D (4)
•    Geocentric (5)
•    Vertical (3)
•    Compound (4)

• Operation (15)

•    Transformation (13)
•    Conversion (2)

• Datum (8)

•    Vertical (3)
•    Geodetic (5)

• Area (5)