Jarnsaxa is about 6 kilometres in diameter , and orbits Saturn at an average distance of 18,556,900 km in 943.784 days , at an inclination of 162.9 Â to the ecliptic ( 164.1 Â to Saturn 's equator ) , with an eccentricity of 0.1918 . S\/2006 S 6 is about 6 kilometres in diameter , and orbits Saturn at an average distance of 18,556.9 Mm in 943.784 days , at an inclination of 162.9 Â to the ecliptic ( 164.1 Â to Saturn 's equator ) , in a retrograde direction and with an eccentricity of 0.1918 .