metre
Engineering survey, topographic mapping.
None
Belgium - onshore.
Data Source: EPSG v11.016 2024-08-31
Datum: Reseau National Belge 1950 (Brussels)
Coordinate System: cartesian
Projection: Belge Lambert 50
Geodetic CRS: BD50 (Brussels)
PROJCRS["BD50 (Brussels) / Belge Lambert 50",
BASEGEOGCRS["BD50 (Brussels)",
DATUM["Reseau National Belge 1950 (Brussels)",
ELLIPSOID["International 1924",6378388,297,
LENGTHUNIT["metre",1]]],
PRIMEM["Brussels",4.367975,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",4809]],
CONVERSION["Belge Lambert 50",
METHOD["Lambert Conic Conformal (2SP)",
ID["EPSG",9802]],
PARAMETER["Latitude of false origin",90,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8821]],
PARAMETER["Longitude of false origin",0,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8822]],
PARAMETER["Latitude of 1st standard parallel",49.8333333333333,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8823]],
PARAMETER["Latitude of 2nd standard parallel",51.1666666666667,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8824]],
PARAMETER["Easting at false origin",150000,
LENGTHUNIT["metre",1],
ID["EPSG",8826]],
PARAMETER["Northing at false origin",5400000,
LENGTHUNIT["metre",1],
ID["EPSG",8827]]],
CS[Cartesian,2],
AXIS["easting (X)",east,
ORDER[1],
LENGTHUNIT["metre",1]],
AXIS["northing (Y)",north,
ORDER[2],
LENGTHUNIT["metre",1]],
USAGE[
SCOPE["Engineering survey, topographic mapping."],
AREA["Belgium - onshore."],
BBOX[49.5,2.5,51.51,6.4]],
ID["EPSG",21500]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "BD50 (Brussels) / Belge Lambert 50",
"base_crs": {
"name": "BD50 (Brussels)",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "Reseau National Belge 1950 (Brussels)",
"ellipsoid": {
"name": "International 1924",
"semi_major_axis": 6378388,
"inverse_flattening": 297
},
"prime_meridian": {
"name": "Brussels",
"longitude": 4.367975
}
},
"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": 4809
}
},
"conversion": {
"name": "Belge Lambert 50",
"method": {
"name": "Lambert Conic Conformal (2SP)",
"id": {
"authority": "EPSG",
"code": 9802
}
},
"parameters": [
{
"name": "Latitude of false origin",
"value": 90,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8821
}
},
{
"name": "Longitude of false origin",
"value": 0,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8822
}
},
{
"name": "Latitude of 1st standard parallel",
"value": 49.8333333333333,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8823
}
},
{
"name": "Latitude of 2nd standard parallel",
"value": 51.1666666666667,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8824
}
},
{
"name": "Easting at false origin",
"value": 150000,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8826
}
},
{
"name": "Northing at false origin",
"value": 5400000,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8827
}
}
]
},
"coordinate_system": {
"subtype": "Cartesian",
"axis": [
{
"name": "Easting",
"abbreviation": "X",
"direction": "east",
"unit": "metre"
},
{
"name": "Northing",
"abbreviation": "Y",
"direction": "north",
"unit": "metre"
}
]
},
"scope": "Engineering survey, topographic mapping.",
"area": "Belgium - onshore.",
"bbox": {
"south_latitude": 49.5,
"west_longitude": 2.5,
"north_latitude": 51.51,
"east_longitude": 6.4
},
"id": {
"authority": "EPSG",
"code": 21500
}
}
{'crs_wkt': 'PROJCRS["BD50 (Brussels) / Belge Lambert 50",BASEGEOGCRS["BD50 '
'(Brussels)",DATUM["Reseau National Belge 1950 '
'(Brussels)",ELLIPSOID["International '
'1924",6378388,297,LENGTHUNIT["metre",1]]],PRIMEM["Brussels",4.367975,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4809]],CONVERSION["Belge '
'Lambert 50",METHOD["Lambert Conic Conformal '
'(2SP)",ID["EPSG",9802]],PARAMETER["Latitude of false '
'origin",90,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8821]],PARAMETER["Longitude '
'of false '
'origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8822]],PARAMETER["Latitude '
'of 1st standard '
'parallel",49.8333333333333,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8823]],PARAMETER["Latitude '
'of 2nd standard '
'parallel",51.1666666666667,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8824]],PARAMETER["Easting '
'at false '
'origin",150000,LENGTHUNIT["metre",1],ID["EPSG",8826]],PARAMETER["Northing '
'at false '
'origin",5400000,LENGTHUNIT["metre",1],ID["EPSG",8827]]],CS[Cartesian,2],AXIS["easting '
'(X)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["northing '
'(Y)",north,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Engineering '
'survey, topographic mapping."],AREA["Belgium - '
'onshore."],BBOX[49.5,2.5,51.51,6.4]],ID["EPSG",21500]]',
'false_easting': 150000.0,
'false_northing': 5400000.0,
'geographic_crs_name': 'BD50 (Brussels)',
'grid_mapping_name': 'lambert_conformal_conic',
'horizontal_datum_name': 'Reseau National Belge 1950 (Brussels)',
'inverse_flattening': 297.0,
'latitude_of_projection_origin': 90.0,
'longitude_of_central_meridian': 0.0,
'longitude_of_prime_meridian': 4.3679749999999995,
'prime_meridian_name': 'Brussels',
'projected_crs_name': 'BD50 (Brussels) / Belge Lambert 50',
'reference_ellipsoid_name': 'International 1924',
'semi_major_axis': 6378388.0,
'semi_minor_axis': 6356911.9461279465,
'standard_parallel': (49.833333333333336, 51.166666666666664)}