It orbits Jupiter at an average distance of 20,465,000 km in 598.093 days . This orbit is at an inclination of 143 Â to the ecliptic ( 142 Â to Jupiter 's equator ) with an eccentricity of 0.2001 . Euanthe is about 3 kilometres in diameter , and orbits Jupiter at an average distance of 20,465 Mm in 598.093 days , at an inclination of 143 Â to the ecliptic ( 142 Â to Jupiter 's equator ) with an eccentricity of 0.2001 .