Moon M1 Phobos

Orbital characteristics

Epoch 1-Jan-1950 (2433282.5 JD)
Apoapsis0.0001 AU
9517.6 km
Periapsis0.0001 AU
9234.4 km
Semi-major axis0.0001 AU
9376.0 km
Inclination1.0750 °
Longitude of asc. node207.78 °
Argument of periapsis150.06 °
Orbital period0.31890 days
0.001 years
Avg. orbital speed2.138 km/s

Physical characteristics

Mean diameter22.200 km
Mass1.066×1016 kg
Avg. density1.861 g/cm3
Equatorial surface gravity0.006 m/s2
0.001 g
Escape velocity0.011 km/s
Rotation period (sidereal)7.6538 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.

Surface Textures

Textures are simple cylindrical projections with prime meridian at the middle, provided at the highest resolution available.

Last Modified: 14 Oct 2019