Cadastre, engineering survey, topographic mapping.
Extended from Japan to Korea in 1898. In Japan replaced by Tokyo 1918 (datum code 6301). In South Korea replaced by Tokyo 1918 (code 6301) only for geodetic purposes; for all other purposes replaced by Korean 1985 (code 6162).
Japan - onshore; North Korea - onshore; South Korea - onshore.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Tokyo 1892", "ellipsoid": { "name": "Bessel 1841", "semi_major_axis": 6377397.155, "inverse_flattening": 299.1528128 }, "scope": "Cadastre, engineering survey, topographic mapping.", "area": "Japan - onshore; North Korea - onshore; South Korea - onshore.", "bbox": { "south_latitude": 20.37, "west_longitude": 122.83, "north_latitude": 45.54, "east_longitude": 154.05 }, "id": { "authority": "EPSG", "code": 1048 } }