Asteroid (101955) Bennu
Orbital characteristics
| Epoch 31-Dec-2010 (2455562.5 JD) | |
| Apoapsis | 1.3559 AU |
| 2.0284×108 km | |
| Periapsis | 0.8969 AU |
| 1.3417×108 km | |
| Semi-major axis | 1.1264 AU |
| 1.6851×108 km | |
| Eccentricity | 0.2037451 |
| Inclination | 6.0349 ° |
| Longitude of asc. node | 2.0609 ° |
| Argument of periapsis | 66.223 ° |
| Orbital period | 436.649 days |
| 1.195 years | |
| Avg. orbital speed | 27.77 km/s |
Physical characteristics
| Mean diameter | 0.4920 km |
| Extent | 0.565 x 0.535 x 0.508 km |
| Mass | 7.793×1010 kg |
| Avg. density | 1.250 g/cm3 |
| Rotation period (sidereal) | 4.2975 hours |
| Albedo | 0.046 |
Models:
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Links
Shape model data sources
- Nolan, M.C., Magri, C., Howell, E.S., Benner, L.A.M., Giorgini, J.D., Hergenrother, C.W., Hudson, R.S., Lauretta, D.S., Margot, J.L., Ostro, S.J., and Scheeres, D.J., Asteroid (101955) Bennu Shape Model V1.0. EAR-A-I0037-5-BENNUSHAPE-V1.0. NASA Planetary Data System, 2013 link
- OSIRIS-REx Mission Site link
Texture sources
- Bennett, C. A., DellaGiustina, D. N., Becker, K. J., Becker, T. L., Edmundson, T. L., Golish D. R., et. al. (2020). A high-resolution global basemap of (101955) Bennu. Icarus. Advance online publication. https://doi.org/10.1016/j.icarus.2020.113690 link
Downloads
Models
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.
- Bennu (Radar) (PLY 51 KB) (OBJ 83 KB)
- Bennu (OSIRIS-REx, 2019) (PLY 3.6 MB) (OBJ 6.8 MB)
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.
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Bennu (Bennu OSIRIS-REx 5cm v1)
(JPEG, 15708×7854px, 58.8 MB)
