{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeographicCRS","name":"Itokawa (2015) - Sphere / Ocentric","datum":{"type":"GeodeticReferenceFrame","name":"Itokawa (2015) - Sphere","anchor":"defined with W0=0: 0.0","ellipsoid":{"name":"Itokawa (2015) - Sphere","radius":173},"prime_meridian":{"name":"Reference Meridian","longitude":0}},"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":"IAU","code":202514300,"version":2015},"remarks":"Use R_m = (a+b+c)/3 as mean radius. Use mean radius as sphere radius for interoperability. Source of IAU Coordinate systems: https://doi.org/10.1007/s10569-017-9805-5"}