{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeographicCRS","name":"Hughes 1980","datum":{"type":"GeodeticReferenceFrame","name":"Hughes 1980","ellipsoid":{"name":"Hughes 1980","semi_major_axis":6378273,"semi_minor_axis":6356889.449}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"scope":"US Defense Meteorological Satellite Program (DMSP) SSM/I microwave imagery products.","area":"World.","bbox":{"south_latitude":-90,"west_longitude":-180,"north_latitude":90,"east_longitude":180},"id":{"authority":"EPSG","code":10345},"remarks":"Used as basis for DMSP SSM/I data sets provided by NSIDC for polar research."}