Simplify the following text for a Grade 10 native English-speaking person.
Original: Eukelade is about 4 kilometres in diameter , and orbits Jupiter at an average distance of 23,484 Mm in 735.200 days , at an inclination of 164 Â to the ecliptic ( 165 Â to Jupiter 's equator ) , in a retrograde direction and with an eccentricity of 0.2829 .
Simplified: Eukelade is about 4 kilometres in diameter , and orbits Jupiter at an average distance of 23,484,000 km in 735.200 days , at an inclination of 164 Â to the ecliptic ( 165 Â to Jupiter 's equator ) , with an eccentricity of 0.2829 .