St Helena - St Helena Island - EPSG:7956
Detailed Extent
WKT
HVCOORDSYS["SHMG2015_and_SHVD2015_height",
PROJCS["SHMG2015",
GEOGCS["SHGD2015",
DATUM["St_Helena_Geodetic_Datum_2015",
SPHEROID["GRS_1980", 6378137.0, 298.257222101]],
PRIMEM["Greenwich", 0.0],
UNIT["Degree", 0.0174532925199433]],
PROJECTION["Transverse_Mercator"],
PARAMETER["False_Easting", 500000.0],
PARAMETER["False_Northing", 10000000.0],
PARAMETER["Central_Meridian", -3.0],
PARAMETER["Scale_Factor", 0.9996],
PARAMETER["Latitude_Of_Origin", 0.0],
UNIT["Meter", 1.0]],
VERTCS["SHVD2015_height",
VDATUM["St_Helena_Vertical_Datum_2015"],
PARAMETER["Vertical_Shift", 0.0],
PARAMETER["Direction", 1.0],
UNIT["Meter", 1.0]]]
WKT2
COMPOUNDCRS["SHMG2015_and_SHVD2015_height",
PROJCRS["SHMG2015",
BASEGEOGCRS["SHGD2015",
DATUM["St_Helena_Geodetic_Datum_2015",
ELLIPSOID["GRS_1980", 6378137.0, 298.257222101]],
PRIMEM["Greenwich", 0.0],
CS[ellipsoidal, 2],
AXIS["Latitude (lat)", north,
ORDER[1]],
AXIS["Longitude (lon)", east,
ORDER[2]],
ANGLEUNIT["Degree", 0.0174532925199433]],
CONVERSION["Transverse_Mercator",
METHOD["Transverse_Mercator"],
PARAMETER["False_Easting", 500000.0],
PARAMETER["False_Northing", 10000000.0],
PARAMETER["Central_Meridian", -3.0],
PARAMETER["Scale_Factor", 0.9996],
PARAMETER["Latitude_Of_Origin", 0.0]],
CS[Cartesian, 2],
AXIS["Easting (X)", east,
ORDER[1]],
AXIS["Northing (Y)", north,
ORDER[2]],
LENGTHUNIT["Meter", 1.0]],
VERTCRS["SHVD2015_height",
VDATUM["St_Helena_Vertical_Datum_2015"],
CS[vertical, 1],
AXIS["Gravity-related height (H)", up,
LENGTHUNIT["Meter", 1.0]]],
ID["EPSG", "7956"]]
Data from @esri/proj-codes
{
"wkid": 7956,
"latestWkid": 7956,
"pcsWkid": 7887,
"gcsWkid": 7886,
"vcsWkid": 7890,
"macro": "PE_HVC_SHMG2015_SHVD2015_HT",
"name": "SHMG2015_and_SHVD2015_height",
"wkt": "HVCOORDSYS[\"SHMG2015_and_SHVD2015_height\",PROJCS[\"SHMG2015\",GEOGCS[\"SHGD2015\",DATUM[\"St_Helena_Geodetic_Datum_2015\",SPHEROID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",500000.0],PARAMETER[\"False_Northing\",10000000.0],PARAMETER[\"Central_Meridian\",-3.0],PARAMETER[\"Scale_Factor\",0.9996],PARAMETER[\"Latitude_Of_Origin\",0.0],UNIT[\"Meter\",1.0]],VERTCS[\"SHVD2015_height\",VDATUM[\"St_Helena_Vertical_Datum_2015\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]]",
"wkt2": "COMPOUNDCRS[\"SHMG2015_and_SHVD2015_height\",PROJCRS[\"SHMG2015\",BASEGEOGCRS[\"SHGD2015\",DATUM[\"St_Helena_Geodetic_Datum_2015\",ELLIPSOID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433]],CONVERSION[\"Transverse_Mercator\",METHOD[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",500000.0],PARAMETER[\"False_Northing\",10000000.0],PARAMETER[\"Central_Meridian\",-3.0],PARAMETER[\"Scale_Factor\",0.9996],PARAMETER[\"Latitude_Of_Origin\",0.0]],CS[Cartesian,2],AXIS[\"Easting (X)\",east,ORDER[1]],AXIS[\"Northing (Y)\",north,ORDER[2]],LENGTHUNIT[\"Meter\",1.0]],VERTCRS[\"SHVD2015_height\",VDATUM[\"St_Helena_Vertical_Datum_2015\"],CS[vertical,1],AXIS[\"Gravity-related height (H)\",up,LENGTHUNIT[\"Meter\",1.0]]],ID[\"EPSG\",\"7956\"]]",
"description": "St Helena - St Helena Island",
"authority": "EPSG",
"version": "9.0(10.8.0)",
"deprecated": "no",
"areaname": "St Helena - St Helena Island",
"extent": {
"slat": -16.08,
"nlat": -15.85,
"llon": -5.85,
"rlon": -5.59
}
}