St Helena - St Helena Island - EPSG:7954
Detailed Extent
WKT
HVCOORDSYS["Astro_DOS_71_UTM_Zone_30S_and_Jamestown_1971_height",
PROJCS["Astro_DOS_71_4_UTM_zone_30S",
GEOGCS["GCS_DOS_71_4",
DATUM["D_DOS_71_4",
SPHEROID["International_1924", 6378388.0, 297.0]],
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["Jamestown_1971_height",
VDATUM["Jamestown_1971"],
PARAMETER["Vertical_Shift", 0.0],
PARAMETER["Direction", 1.0],
UNIT["Meter", 1.0]]]
WKT2
COMPOUNDCRS["Astro_DOS_71_UTM_Zone_30S_and_Jamestown_1971_height",
PROJCRS["Astro_DOS_71_4_UTM_zone_30S",
BASEGEOGCRS["GCS_DOS_71_4",
DATUM["D_DOS_71_4",
ELLIPSOID["International_1924", 6378388.0, 297.0]],
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["Jamestown_1971_height",
VDATUM["Jamestown_1971"],
CS[vertical, 1],
AXIS["Gravity-related height (H)", up,
LENGTHUNIT["Meter", 1.0]]],
ID["EPSG", "7954"]]
Data from @esri/proj-codes
{
"wkid": 7954,
"latestWkid": 7954,
"pcsWkid": 7878,
"gcsWkid": 4710,
"vcsWkid": 7888,
"macro": "PE_HVC_DOS_71_UTM_30S_JAMESTOWN_1971_HT",
"name": "Astro_DOS_71_UTM_Zone_30S_and_Jamestown_1971_height",
"wkt": "HVCOORDSYS[\"Astro_DOS_71_UTM_Zone_30S_and_Jamestown_1971_height\",PROJCS[\"Astro_DOS_71_4_UTM_zone_30S\",GEOGCS[\"GCS_DOS_71_4\",DATUM[\"D_DOS_71_4\",SPHEROID[\"International_1924\",6378388.0,297.0]],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[\"Jamestown_1971_height\",VDATUM[\"Jamestown_1971\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]]",
"wkt2": "COMPOUNDCRS[\"Astro_DOS_71_UTM_Zone_30S_and_Jamestown_1971_height\",PROJCRS[\"Astro_DOS_71_4_UTM_zone_30S\",BASEGEOGCRS[\"GCS_DOS_71_4\",DATUM[\"D_DOS_71_4\",ELLIPSOID[\"International_1924\",6378388.0,297.0]],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[\"Jamestown_1971_height\",VDATUM[\"Jamestown_1971\"],CS[vertical,1],AXIS[\"Gravity-related height (H)\",up,LENGTHUNIT[\"Meter\",1.0]]],ID[\"EPSG\",\"7954\"]]",
"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
}
}