EPSG:7877Projected
Astro DOS 71 / SHLG71
Type
Projected
Unit
metre
Accuracy
1 m
Area of use
St Helena, Ascension and Tristan da Cunha - St Helena Island - onshore.
proj4 definition
+proj=tmerc +lat_0=-15.9666666666667 +lon_0=-5.71666666666667 +k=1 +x_0=300000 +y_0=2000000 +ellps=intl +towgs84=-323.65,551.39,-491.22,0,0,0,0 +units=m +no_defs +type=crs
Well-Known Text (WKT)
PROJCS["Astro DOS 71 / SHLG71",GEOGCS["Astro DOS 71",DATUM["Astro_DOS_71",SPHEROID["International 1924",6378388,297],TOWGS84[-323.65,551.39,-491.22,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4710"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",-15.9666666666667],PARAMETER["central_meridian",-5.71666666666667],PARAMETER["scale_factor",1],PARAMETER["false_easting",300000],PARAMETER["false_northing",2000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","7877"]]