TY - GEN
T1 - The Dynamics about Asteroid (101955) Bennu
AU - Scheeres, D. J.
AU - Brown, G.
AU - Takahashi, S.
AU - McMahon, J. W.
AU - Wibben, D.
AU - Antreasian, P.
AU - Lauretta, D. S.
N1 - Funding Information:
We are grateful to the entire OSIRIS-REx Team for making the encounter with Bennu possible. Funding: This material is based on work supported by NASA under contracts NNM10AA11C and NNG13FC02C issued through the New Frontiers Program.
Publisher Copyright:
© 2022, American Institute of Aeronautics and Astronautics Inc.. All rights reserved.
PY - 2022
Y1 - 2022
N2 - The OSIRIS-REx mission to asteroid (101955) Bennu resulted in the most detailed and accurate model to date of a small, rubble-pile asteroid. This paper provides a detailed dynamical systems analysis of orbital motion in the vicinity of Bennu, leveraging the final physical model estimated by the science and flight dynamics team. First the dynamics subject solely to the gravitational attraction of the body are explored, detailing the equilibrium points, periodic orbit families and bifurcations between these families. Then the analysis will incorporate the main perturbation from solar radiation pressure (SRP) and survey the basic limits of orbital motion due to this perturbation, and assess the stability of frozen orbits when accounting for the higher-order gravitational field perturbations. This will include the exploration of stable orbits that could be of use to future exploration missions to similar asteroids. The paper will conclude by analyzing the surface dynamical environment of Bennu, including the Roche lobe and other results of interest from a dynamics perspective.
AB - The OSIRIS-REx mission to asteroid (101955) Bennu resulted in the most detailed and accurate model to date of a small, rubble-pile asteroid. This paper provides a detailed dynamical systems analysis of orbital motion in the vicinity of Bennu, leveraging the final physical model estimated by the science and flight dynamics team. First the dynamics subject solely to the gravitational attraction of the body are explored, detailing the equilibrium points, periodic orbit families and bifurcations between these families. Then the analysis will incorporate the main perturbation from solar radiation pressure (SRP) and survey the basic limits of orbital motion due to this perturbation, and assess the stability of frozen orbits when accounting for the higher-order gravitational field perturbations. This will include the exploration of stable orbits that could be of use to future exploration missions to similar asteroids. The paper will conclude by analyzing the surface dynamical environment of Bennu, including the Roche lobe and other results of interest from a dynamics perspective.
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U2 - 10.2514/6.2022-2468
DO - 10.2514/6.2022-2468
M3 - Conference contribution
AN - SCOPUS:85123898429
SN - 9781624106316
T3 - AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022
BT - AIAA SciTech Forum 2022
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022
Y2 - 3 January 2022 through 7 January 2022
ER -