Asteroid (101955) Bennu

Orbital characteristics

Epoch 31-Dec-2010 (2455562.5 JD)
Apoapsis1.3559 AU
2.0284×108 km
Periapsis0.8969 AU
1.3417×108 km
Semi-major axis1.1264 AU
1.6851×108 km
Eccentricity 0.2037451
Inclination6.0349 °
Longitude of asc. node2.0609 °
Argument of periapsis66.223 °
Orbital period436.649 days
1.195 years
Avg. orbital speed27.77 km/s

Physical characteristics

Mean diameter0.4920 km
Extent0.565 x 0.535 x 0.508 km
Mass7.793×1010 kg
Avg. density1.250 g/cm3
Rotation period (sidereal)4.2975 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: 04 Jul 2021