Moon J1 Io
|Mean diameter||3643.2 km|
|Avg. density||3.529 g/cm3|
|Equatorial surface gravity||1.797 m/s2|
|Escape velocity||2.558 km/s|
|Rotation period (sidereal)||42.459 hours|
Models are given in Stanford Triangle Format (PLY) and Alias Waveform Format (OBJ) - you can use MeshLab or any other tool to convert them to other formats.
Please note that the models are in planetocentric coordinate system, with Z axis passing through north pole. Actual rotational axis may differ from planetocentric poles, especially for small irregular bodies.