Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Japanese Survey Federation and Geographical Survey Institute http://www.gsi.go.jp/ENGLISH/RESEARCH/BULLETIN/vol-45/45abst1.htm
Revision date: 2016-09-16
Scope: Geodesy, engineering survey, topographic mapping.
Remarks: 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.
Area of use: Japan - onshore and offshore.
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 } }