Asteroid (253) Mathilde

Orbital characteristics

Epoch 26-Apr-2019 (2458600.5 JD)
Apoapsis3.3454 AU
5.0047×108 km
Periapsis1.9525 AU
2.9209×108 km
Semi-major axis2.6490 AU
3.9628×108 km
Inclination6.7386 °
Longitude of asc. node179.56 °
Argument of periapsis157.68 °
Orbital period1574.76 days
4.311 years
Avg. orbital speed17.98 km/s

Physical characteristics

Mean diameter52.800 km
Mass1.033×1017 kg
Avg. density1.340 g/cm3
Equatorial surface gravity0.010 m/s2
0.001 g
Escape velocity0.023 km/s
Rotation period (synodic)417.70 hours

The shape model is incomplete: not all areas were viewed due to the lack of rotation. For areas not imaged, the shape model contains the mean radius value (26.5 km). This does introduce some very jagged edges in the model.



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: 07 Jan 2020