{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeographicCRS","name":"Lao 1993","datum":{"type":"GeodeticReferenceFrame","name":"Lao 1993","ellipsoid":{"name":"Krassowsky 1940","semi_major_axis":6378245,"inverse_flattening":298.3}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"},{"name":"Ellipsoidal height","abbreviation":"h","direction":"up","unit":"metre"}]},"scope":"Geodesy.","area":"Laos.","bbox":{"south_latitude":13.92,"west_longitude":100.09,"north_latitude":22.5,"east_longitude":107.64},"id":{"authority":"EPSG","code":4991},"remarks":"Replaced by Lao 1997. Lao 1993 coordinate values are within 1m of Lao 1997 values."}