{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeographicCRS","name":"Xian 1980","datum":{"type":"GeodeticReferenceFrame","name":"Xian 1980","ellipsoid":{"name":"IAG 1975","semi_major_axis":6378140,"inverse_flattening":298.257}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"scope":"Geodesy.","area":"China - onshore.","bbox":{"south_latitude":18.11,"west_longitude":73.62,"north_latitude":53.56,"east_longitude":134.77},"id":{"authority":"EPSG","code":4610},"remarks":"Replaces Beijing 1954 (CRS code 4214). Replaced by CGCS2000(CRS code 4490)."}