metre
Engineering survey, topographic mapping.
None
South America between 60°W and 54°W, northern hemisphere, onshore and offshore.
Data Source: EPSG v11.016 2024-08-31
Datum: Sistema de Referencia Geocentrico para America del Sur 1995
Coordinate System: cartesian
Projection: UTM zone 21N
Geodetic CRS: SIRGAS 1995
PROJCRS["SIRGAS 1995 / UTM zone 21N",
BASEGEOGCRS["SIRGAS 1995",
DATUM["Sistema de Referencia Geocentrico para America del Sur 1995",
ELLIPSOID["GRS 1980",6378137,298.257222101,
LENGTHUNIT["metre",1]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",4170]],
CONVERSION["UTM zone 21N",
METHOD["Transverse Mercator",
ID["EPSG",9807]],
PARAMETER["Latitude of natural origin",0,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8801]],
PARAMETER["Longitude of natural origin",-57,
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",0,
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, topographic mapping."],
AREA["South America between 60°W and 54°W, northern hemisphere, onshore and offshore."],
BBOX[0,-60,10.7,-54]],
ID["EPSG",31990]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "SIRGAS 1995 / UTM zone 21N",
"base_crs": {
"name": "SIRGAS 1995",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "Sistema de Referencia Geocentrico para America del Sur 1995",
"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": 4170
}
},
"conversion": {
"name": "UTM zone 21N",
"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": -57,
"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": 0,
"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, topographic mapping.",
"area": "South America between 60°W and 54°W, northern hemisphere, onshore and offshore.",
"bbox": {
"south_latitude": 0,
"west_longitude": -60,
"north_latitude": 10.7,
"east_longitude": -54
},
"id": {
"authority": "EPSG",
"code": 31990
}
}
{'crs_wkt': 'PROJCRS["SIRGAS 1995 / UTM zone 21N",BASEGEOGCRS["SIRGAS '
'1995",DATUM["Sistema de Referencia Geocentrico para America del '
'Sur 1995",ELLIPSOID["GRS '
'1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4170]],CONVERSION["UTM '
'zone 21N",METHOD["Transverse '
'Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural '
'origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude '
'of natural '
'origin",-57,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",0,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, topographic mapping."],AREA["South America between 60°W '
'and 54°W, northern hemisphere, onshore and '
'offshore."],BBOX[0,-60,10.7,-54]],ID["EPSG",31990]]',
'false_easting': 500000.0,
'false_northing': 0.0,
'geographic_crs_name': 'SIRGAS 1995',
'grid_mapping_name': 'transverse_mercator',
'horizontal_datum_name': 'Sistema de Referencia Geocentrico para America del '
'Sur 1995',
'inverse_flattening': 298.257222101,
'latitude_of_projection_origin': 0.0,
'longitude_of_central_meridian': -57.0,
'longitude_of_prime_meridian': 0.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'SIRGAS 1995 / UTM zone 21N',
'reference_ellipsoid_name': 'GRS 1980',
'scale_factor_at_central_meridian': 0.9996,
'semi_major_axis': 6378137.0,
'semi_minor_axis': 6356752.314140356}