A high-resolution global basemap of (101955) Bennu - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles Icarus Year : 2021

A high-resolution global basemap of (101955) Bennu

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

Abstract

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.

Dates and versions

insu-03713794 , version 1 (05-07-2022)

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Cite

C. A. Bennett, D. N. Dellagiustina, K. J. Becker, T. L. Becker, K. L. Edmundson, et al.. A high-resolution global basemap of (101955) Bennu. Icarus, 2021, 357, ⟨10.1016/j.icarus.2020.113690⟩. ⟨insu-03713794⟩
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