10 citations · 24 across the 7 of their papers we have counts for
7 papers
Shallow Encounters' Impact on Asteroid Deflection Prediction and Implications on Trajectory Design
Rodolfo Batista Negri, Antônio Fernando Bertachini de Almeida Prado
Analytical approximations are commonly employed in the initial trajectory design phase of a mission to rapidly explore a broad design space. In the context of an asteroid deflectio…
Autonomous and Robust Orbit-keeping for Small Body Missions
Rodolfo Batista Negri, Antonio Fernando Bertachini de Almeida Prado
This article presents a path-following control law for autonomous orbital maintenance of small body missions. The control law is robust, stable, and capable of controlling only the…
A Circular Restricted n-body Problem
Rodolfo Batista Negri, Antonio Fernando Bertachini de Almeida Prado
This paper introduces the Circular Restricted n-Body Problem (CRNBP), an extension of the bicircular restricted four-body problem (BCR4BP) designed to describe the dynamics of an n…
Study on Autonomous Gravity-assists with a Path-following Control
Rodolfo Batista Negri, Antônio Fernando Bertachini de Almeida Prado
We investigate the autonomous control of gravity-assist hyperbolic trajectories using a path following control law based on sliding mode control theory. This control strategy ensur…
Autonomous Rapid Exploration in Close-Proximity of an Asteroid
Rodolfo Batista Negri, Antônio Fernando Bertachini de Almeida Prado, Ronan Arraes Jardim Chagas +1
The increasing number of space missions may overwhelm ground support infrastructure, prompting the need for autonomous deep-space guidance, navigation, and control (GN\&C) systems.…
First approximation for spacecraft motion relative to (99942) Apophis
S. Aljbaae, D. M. Sanchez, A. F. B. A. Prado +4
We aim at providing a preliminary approach on the dynamics of a spacecraft in orbit about the asteroid (99942) Apophis during its Earth close approach. The physical properties from…
Robust Path-following for Keplerian Orbits
Rodolfo Batista Negri, Antônio Fernando Bertachini de Almeida Prado
This work introduces a novel path-following control strategy inspired by the famous two-body problem, aiming to stabilize any Keplerian orbit. Utilizing insights from the mathemati…