{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"ProjectedCRS","name":"Ostenfeld reconstruction","base_crs":{"type":"GeographicCRS","name":"Ostenfeld-IRF","datum":{"type":"GeodeticReferenceFrame","name":"Ostenfeld  Intermediate Datum","ellipsoid":{"name":"Bessel 1841","semi_major_axis":6377397.155,"inverse_flattening":299.1528128}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"id":{"authority":"EPSG","code":10268},"remarks":"Artificial CRS created in 2022 to assist the transformation of coordinates between the historic Ostenfeld CRS and ETRS89 through transformation ETRS89 to Ostenfeld-IRF (1) (code 10271) used with the Ostenfeld-reconstruction map projection (code 10269)."},"conversion":{"name":"Ostenfeld-reconstruction","method":{"name":"Transverse Mercator","id":{"authority":"EPSG","code":9807}},"parameters":[{"name":"Latitude of natural origin","value":54.4685,"unit":"degree","id":{"authority":"EPSG","code":8801}},{"name":"Longitude of natural origin","value":9.233,"unit":"degree","id":{"authority":"EPSG","code":8802}},{"name":"Scale factor at natural origin","value":1,"unit":"unity","id":{"authority":"EPSG","code":8805}},{"name":"False easting","value":0,"unit":"metre","id":{"authority":"EPSG","code":8806}},{"name":"False northing","value":0,"unit":"metre","id":{"authority":"EPSG","code":8807}}]},"coordinate_system":{"subtype":"Cartesian","axis":[{"name":"Easting","abbreviation":"E","direction":"east","unit":"metre"},{"name":"Northing","abbreviation":"N","direction":"north","unit":"metre"}]},"scope":"Cadastre.","area":"Denmark - onshore northern Schleswig and surrounding islands (i.e. Jutland south of the pre-1920 border near the Kongea river).","bbox":{"south_latitude":54.8,"west_longitude":8.37,"north_latitude":55.47,"east_longitude":10.16},"id":{"authority":"EPSG","code":10270}}