A high-resolution global basemap of (101955) Bennu

C. A. Bennett, D. N. DellaGiustina, K. J. Becker, T. L. Becker, K. L. Edmundson, D. R. Golish, R. J. Bennett, K. N. Burke, C. N.U. Cue, B. E. Clark, J. Contreras, J. D.P. Deshapriya, C. Drouet d'Aubigny, G. Fitzgibbon, E. R. Jawin, T. Q. Nolan, N. A. Porter, M. M. Riehl, H. L. Roper, B. RizkY. Tang, Z. Zeszut, R. W. Gaskell, E. E. Palmer, J. R. Weirich, M. M. Al Asad, L. Philpott, M. G. Daly, O. S. Barnouin, H. L. Enos, D. S. Lauretta

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


In early 2019, NASA's OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer) mission surveyed asteroid (101955) Bennu with a collection of instruments, including the OSIRIS-REx Camera Suite (OCAMS) PolyCam imager. Using PolyCam panchromatic images, we constructed a globally controlled basemap of Bennu at an approximate ground sample distance of 5 cm with a mean spatial accuracy of ~30 cm. The basemap was photometrically normalized using a Minneart phase angle correction. New mapping methods were developed to combine images of Bennu's irregular shape and extremely rough surface into a nearly seamless mosaic. Here we present the global basemap of Bennu and discuss the image processing techniques used to construct a high-resolution mosaic of an irregular small body.

Original languageEnglish (US)
Article number113690
StatePublished - Mar 15 2021


  • Asteroid surfaces
  • Asteroids
  • Image processing
  • Near-earth objects

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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