metre
Engineering survey prior to 2016 including Airport and Ruperts Wharfe construction.
None
St Helena, Ascension and Tristan da Cunha - St Helena Island - onshore.
Data Source: EPSG v11.016 2024-08-31
Datum: St. Helena Geodetic Datum 2015
Coordinate System: cartesian
Projection: UTM zone 30S
Geodetic CRS: SHGD2015
PROJCRS["SHMG2015",
BASEGEOGCRS["SHGD2015",
DATUM["St. Helena Geodetic Datum 2015",
ELLIPSOID["GRS 1980",6378137,298.257222101,
LENGTHUNIT["metre",1]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",7886]],
CONVERSION["UTM zone 30S",
METHOD["Transverse Mercator",
ID["EPSG",9807]],
PARAMETER["Latitude of natural origin",0,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8801]],
PARAMETER["Longitude of natural origin",-3,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8802]],
PARAMETER["Scale factor at natural origin",0.9996,
SCALEUNIT["unity",1],
ID["EPSG",8805]],
PARAMETER["False easting",500000,
LENGTHUNIT["metre",1],
ID["EPSG",8806]],
PARAMETER["False northing",10000000,
LENGTHUNIT["metre",1],
ID["EPSG",8807]]],
CS[Cartesian,2],
AXIS["(E)",east,
ORDER[1],
LENGTHUNIT["metre",1]],
AXIS["(N)",north,
ORDER[2],
LENGTHUNIT["metre",1]],
USAGE[
SCOPE["Engineering survey prior to 2016 including Airport and Ruperts Wharfe construction."],
AREA["St Helena, Ascension and Tristan da Cunha - St Helena Island - onshore."],
BBOX[-16.08,-5.85,-15.85,-5.59]],
ID["EPSG",7887]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "SHMG2015",
"base_crs": {
"name": "SHGD2015",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "St. Helena Geodetic Datum 2015",
"ellipsoid": {
"name": "GRS 1980",
"semi_major_axis": 6378137,
"inverse_flattening": 298.257222101
}
},
"coordinate_system": {
"subtype": "ellipsoidal",
"axis": [
{
"name": "Geodetic latitude",
"abbreviation": "Lat",
"direction": "north",
"unit": "degree"
},
{
"name": "Geodetic longitude",
"abbreviation": "Lon",
"direction": "east",
"unit": "degree"
}
]
},
"id": {
"authority": "EPSG",
"code": 7886
}
},
"conversion": {
"name": "UTM zone 30S",
"method": {
"name": "Transverse Mercator",
"id": {
"authority": "EPSG",
"code": 9807
}
},
"parameters": [
{
"name": "Latitude of natural origin",
"value": 0,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8801
}
},
{
"name": "Longitude of natural origin",
"value": -3,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8802
}
},
{
"name": "Scale factor at natural origin",
"value": 0.9996,
"unit": "unity",
"id": {
"authority": "EPSG",
"code": 8805
}
},
{
"name": "False easting",
"value": 500000,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8806
}
},
{
"name": "False northing",
"value": 10000000,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8807
}
}
]
},
"coordinate_system": {
"subtype": "Cartesian",
"axis": [
{
"name": "Easting",
"abbreviation": "E",
"direction": "east",
"unit": "metre"
},
{
"name": "Northing",
"abbreviation": "N",
"direction": "north",
"unit": "metre"
}
]
},
"scope": "Engineering survey prior to 2016 including Airport and Ruperts Wharfe construction.",
"area": "St Helena, Ascension and Tristan da Cunha - St Helena Island - onshore.",
"bbox": {
"south_latitude": -16.08,
"west_longitude": -5.85,
"north_latitude": -15.85,
"east_longitude": -5.59
},
"id": {
"authority": "EPSG",
"code": 7887
}
}
{'crs_wkt': 'PROJCRS["SHMG2015",BASEGEOGCRS["SHGD2015",DATUM["St. Helena '
'Geodetic Datum 2015",ELLIPSOID["GRS '
'1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",7886]],CONVERSION["UTM '
'zone 30S",METHOD["Transverse '
'Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural '
'origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude '
'of natural '
'origin",-3,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale '
'factor at natural '
'origin",0.9996,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False '
'easting",500000,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False '
'northing",10000000,LENGTHUNIT["metre",1],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["(E)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["(N)",north,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Engineering '
'survey prior to 2016 including Airport and Ruperts Wharfe '
'construction."],AREA["St Helena, Ascension and Tristan da Cunha - '
'St Helena Island - '
'onshore."],BBOX[-16.08,-5.85,-15.85,-5.59]],ID["EPSG",7887]]',
'false_easting': 500000.0,
'false_northing': 10000000.0,
'geographic_crs_name': 'SHGD2015',
'grid_mapping_name': 'transverse_mercator',
'horizontal_datum_name': 'St. Helena Geodetic Datum 2015',
'inverse_flattening': 298.257222101,
'latitude_of_projection_origin': 0.0,
'longitude_of_central_meridian': -3.0,
'longitude_of_prime_meridian': 0.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'SHMG2015',
'reference_ellipsoid_name': 'GRS 1980',
'scale_factor_at_central_meridian': 0.9996,
'semi_major_axis': 6378137.0,
'semi_minor_axis': 6356752.314140356}