GEOGCS["Portia (2015) - Sphere / Ocentric",
    DATUM["Portia (2015) - Sphere",
        SPHEROID["Portia (2015) - Sphere",54000,0,
            AUTHORITY["IAU","71200"]],
        AUTHORITY["IAU","71200"]],
    PRIMEM["Reference Meridian",0,
        AUTHORITY["IAU","71200"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["IAU","71200"]]