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Article
Open AccessImplementation of direct battery driven discharge in triggerless operation of vacuum arc thrusters
The increasing demand for CubeSat missions with limited budgets and constrained timelines necessitates the development of innovative propulsion systems. This paper focuses on vacuum arc thrusters (VATs) and in...
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Article
Open AccessProbabilistic data association: the orbit set
This paper presents a novel method to obtain the solution to the initial orbit determination problem for optical observations as a continuum of orbits—namely the orbit set—that fits the set of acquired observa...
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Article
On the predictability and robustness of Galileo disposal orbits
The end-of-life disposal of Galileo satellites is needed to avoid collisions with operational spacecraft and to prevent the generation of space debris. Either disposal into stable graveyard orbits or disposal ...
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Article
Long-term density evolution through semi-analytical and differential algebra techniques
This paper introduces and combines for the first time two techniques to allow long-term density propagation in astrodynamics. First, we introduce an efficient method for the propagation of phase space densitie...
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Chapter and Conference Paper
Forecasting Satellite Trajectories by Interpolating Hybrid Orbit Propagators
A hybrid orbit propagator based on the analytical integration of the Kepler problem is designed to determine the future position and velocity of any orbiter, usually an artificial satellite or space debris fragme...
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Chapter and Conference Paper
Machine Learning of Optimal Low-Thrust Transfers Between Near-Earth Objects
During the initial phase of space trajectory planning and optimization, it is common to have to solve large dimensional global optimization problems. In particular continuous low-thrust propulsion is computati...
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Chapter and Conference Paper
An Introduction to Differential Algebra and the Differential Algebra Manifold Representation
Differential Algebra techniques have been used extensively in the past decade to treat various problems in astrodynamics. In this paper we review the Differential Algebra technique and present four different v...
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Article
High order transfer maps for perturbed Keplerian motion
The paper presents a new semi-analytical technique for the propagation of near-Earth satellite motion. The approach uses differential algebra techniques to compute the high order expansion of the solution of t...
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Article
Propagation of large uncertainty sets in orbital dynamics by automatic domain splitting
Current approaches to uncertainty propagation in astrodynamics mainly refer to linearized models or Monte Carlo simulations. Naive linear methods fail in nonlinear dynamics, whereas Monte Carlo simulations ten...
