Simplify the following text for a Grade 5 native English-speaking person.
Original: Ijiraq orbits Saturn at an average distance of 11,100,000 km in 451 days on an orbit very similar to Kiviuq 's .
Simplified: Ijiraq orbits Saturn at an average distance of 11.1 Gm in 451 days on an orbit very similar to Kiviuq 's .