Topographic mapping.
Also known as Indian (DMA Reduced).
Cambodia - onshore; Vietnam - onshore and offshore Cuu Long basin.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Indian 1960", "ellipsoid": { "name": "Everest 1830 (1937 Adjustment)", "semi_major_axis": 6377276.345, "inverse_flattening": 300.8017 }, "scope": "Topographic mapping.", "area": "Cambodia - onshore; Vietnam - onshore and offshore Cuu Long basin.", "bbox": { "south_latitude": 7.99, "west_longitude": 102.14, "north_latitude": 23.4, "east_longitude": 110 }, "id": { "authority": "EPSG", "code": 6131 } }