{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeodeticCRS","name":"SREF98","datum":{"type":"GeodeticReferenceFrame","name":"Serbian Reference Network 1998","ellipsoid":{"name":"GRS 1980","semi_major_axis":6378137,"inverse_flattening":298.257222101}},"coordinate_system":{"subtype":"Cartesian","axis":[{"name":"Geocentric X","abbreviation":"X","direction":"geocentricX","unit":"metre"},{"name":"Geocentric Y","abbreviation":"Y","direction":"geocentricY","unit":"metre"},{"name":"Geocentric Z","abbreviation":"Z","direction":"geocentricZ","unit":"metre"}]},"scope":"Geodesy.","area":"Serbia including Vojvodina.","bbox":{"south_latitude":42.23,"west_longitude":18.81,"north_latitude":46.19,"east_longitude":23.01},"id":{"authority":"EPSG","code":4073},"remarks":"Replaced by SRB_ETRS89 (STRS00) (CRS code 8683)."}