I've made a website to track Elon Musk's Roadster that was launched on top of the Falcon Heavy rocket lately. Check it out here.
Moon J3 Ganymede
|Mean diameter||5268.2 km|
|Avg. density||1.936 g/cm3|
|Equatorial surface gravity||1.425 m/s2|
|Escape velocity||2.740 km/s|
|Rotation period (sidereal)||171.71 hours|
This object does not have a shape model yet and is being displayed as a textured tri-axial ellipsoid.