GEOGCS["Helene (2015) - Sphere / Ocentric", DATUM["Helene (2015) - Sphere", SPHEROID["Helene (2015) - Sphere",18000,0, AUTHORITY["IAU","61200"]], AUTHORITY["IAU","61200"]], PRIMEM["Reference Meridian",0, AUTHORITY["IAU","61200"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["IAU","61200"]]