The OSIRIS-REx Altimetry Working Group developed shape models of Bennu using three methods: data from the OSIRIS-REx laser altimeter (OLA), stereophotoclinometry (SPC), and a combination of stereophotoclinometry and OLA data (SPO). For additional details, see Barnouin et al. (2020).
The SBMT contains a number of Bennu shape models, listed below. We recommend using the lidar-based OLA v20 PTM model for analyses of the surface at scales >10 cm. Other earlier, lower-quality SPC and SPO models are provided because they were used in early publications, for sample site selection, or mission operations. They are not recommended for use in future analyses.
The SBMT contains data for the following instruments. As new data from these instruments are released in the PDS, those data will also become available in the SBMT.
The SBMT contains digital terrain models (DTM) associated with for the OSIRIS-REx Touch-And-Go (TAG) event. The DTM used for TAG is called l_00050mm_alt_dtm_5595n04217_v020.obj. The post-TAG DTM is called l_00050mm_spc_obj_5595n04213_vp54.obj. Both products can be found by going to Body -> Asteroids -> Near-Earth -> 101955 Bennu -> Lidar-based -> OLAv20PTM. Then select the "Regional DTMs" tab. The two DTMs will be listed near the top.
The SBMT also contains global Bennu basemaps from Bennett et al. (2020) and DellaGiustina et al. (2020).= Preview gallery available
Barnouin, O.S. et al., 2019, Shape of (101955) Bennu indicative of a rubble pile with internal stiffness, Nature geoscience, 12, 247-252.
Barnouin, O.S. et al., 2020, Digital terrain mapping by the OSIRIS-REx mission. Planetary and Space Science, 180, 104764.
Bennett, C.A. et al., 2020, A high-resolution global basemap of (101955) Bennu, Icarus, 113690.
Daly, M. G. et al., 2020, Hemispherical Differences in the Shape and Topography of Asteroid (101955) Bennu, Science Advances, 6(41), eabd3649.
DellaGiustina, D.N. et al., 2019. Properties of rubble-pile asteroid (101955) Bennu from OSIRIS-REx imaging and thermal analysis. Nature Astronomy, 3, 341-351.
DellaGiustina, D.N. et al., 2020. Variations in Color and Reflectance on the surface of Asteroid (101955) Bennu. Science, eabc3660.
Kazhdan, M. et al., 2020. Poisson Surface Reconstruction with Envelope Constraints. Computer Graphics Forum, 39, 173-182
Lauretta, D. S., et al., 2022, Spacecraft sample collection and subsurface excavation of asteroid (101955) Bennu, Science, in press.
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.
Scheeres, D.J. et al., 2019. The dynamic geophysical environment of (101955) Bennu based on OSIRIS-REx measurements. Nature Astronomy, 3, 352-361.
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