Asteroid (253) Mathilde
|Epoch 4-Sep-2017 (2458000.5 JD)|
|Semi-major axis||2.6507 AU|
|Longitude of asc. node||179.58 °|
|Argument of periapsis||157.49 °|
|Orbital period||1576.28 days|
|Avg. orbital speed||17.97 km/s|
|Mean diameter||52.800 km|
|Avg. density||1.340 g/cm3|
|Equatorial surface gravity||0.010 m/s2|
|Escape velocity||0.023 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.
Textures are simple cylindrical projections with prime meridian at the middle, provided at the highest resolution available.
(JPEG, 2048×1024px, 63 KB)