EPSG
1999-10-20
Geodesy, topographic mapping.
In Vietnam replaced by Hon Dau in 1992.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalReferenceFrame", "name": "Ha Tien 1960", "scope": "Geodesy, topographic mapping.", "area": "Cambodia - mainland onshore; Vietnam - mainland onshore.", "bbox": { "south_latitude": 8.33, "west_longitude": 102.14, "north_latitude": 23.4, "east_longitude": 109.53 }, "id": { "authority": "EPSG", "code": 5125 } }