Simplify the following text for a Grade 12 native English-speaking person.
Original: Eukelade belongs to the Carme group , made up of non-spherical retrograde moons orbiting Jupiter at a distance ranging between 23,000,000 and 24,000,000 km and at an inclination of about 165 Â .
Simplified: Eukelade belongs to the Carme group , made up of irregular retrograde moons orbiting Jupiter at a distance ranging between 23 and 24 Gm and at an inclination of about 165 Â .