Ellipsoid: International 1924
Prime meridian: Greenwich
Data source: EPSG
Information source: IBGE
Revision date: 2011-07-10
Scope: Geodesy, topographic mapping.
Remarks: Replaced by Corrego Alegre 1970-72 (datum code 6225). NIMA gives coordinates of origin as latitude: 19°50'15.14"S, longitude: 48°57'42.75"W.
Area of use: Brazil - onshore - between 18°S and 27°30'S, also east of 54°W between 15°S and 18°S.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Corrego Alegre 1961", "ellipsoid": { "name": "International 1924", "semi_major_axis": 6378388, "inverse_flattening": 297 }, "scope": "Geodesy, topographic mapping.", "area": "Brazil - onshore - between 18°S and 27°30'S, also east of 54°W between 15°S and 18°S.", "bbox": { "south_latitude": -27.5, "west_longitude": -58.16, "north_latitude": -14.99, "east_longitude": -38.82 }, "id": { "authority": "EPSG", "code": 1074 } }