The Ganymedian orbital eccentricity is somewhat puzzling; if it is not pumped now it should have decayed long ago due to the tidal dissipation in the interior of Ganymede.
Eksentrisitas orbit Ganymede agak membingungkan; jika ia tidak dinaikkan sekarang ia sudah hancur sejak lama karena disipasi pasang-surut di bagian dalam Ganymede.