EPSG
Japanese Survey Federation and Geographical Survey Institute http://www.gsi.go.jp/ENGLISH/RESEARCH/BULLETIN/vol-45/45abst1.htm
2016-09-16
Geodesy, engineering survey, topographic mapping.
Instigated under amendment to the Japanese Surveying Law with effect from April 2002. Replaces Tokyo datum (code 6301). Replaced by JGD2011 (datum code 1128) with effect from 21st October 2011.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Japanese Geodetic Datum 2000", "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 }, "scope": "Geodesy, engineering survey, topographic mapping.", "area": "Japan - onshore and offshore.", "bbox": { "south_latitude": 17.09, "west_longitude": 122.38, "north_latitude": 46.05, "east_longitude": 157.65 }, "id": { "authority": "EPSG", "code": 6612 } }