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53 papers · 1 filter
StreakMind: AI detection and analysis of satellite streaks in astronomical images with automated database integration
Rafael Carrillo Navarro, René Duffard, Pablo García-Martín +3
Artificial satellites and space debris increasingly contaminate astronomical images, affecting scientific surveys and producing large volumes of streaked exposures. Manual inspecti…
Poincaré Maps with the Theory of Functional Connections
A. K. de Almeida, Daniele Mortari
Poincaré maps play a fundamental role in nonlinear dynamics and chaos theory, offering a means to reduce the dimensionality of continuous dynamical systems by tracking the intersec…
Segmentation of the spacecraft transfer problem through overdetermined and continuity constraints based on the Theory of Functional Connections
Allan Kardec de Almeida Junior
This paper introduces a segmented approach for solving constrained orbit transfer problems. The segments are connected through continuity constraints under the Theory of Functional…
Square Kilometre Array Science Data Challenge 3a: foreground removal for an EoR experiment
A. Bonaldi, P. Hartley, R. Braun +179
We present and analyse the results of the Science data challenge 3a (SDC3a, https://sdc3.skao.int/challenges/foregrounds), an EoR foreground-removal community-wide exercise organis…
Connecting Earth and Moon via the L1 Lagrangian point
A. K. de Almeida, V. M. de Oliveira, T. Vaillant +4
The renewed global interest in lunar exploration requires new orbital strategies to ensure flight safety which can benefit extended lunar missions and service a plethora of planned…
Tangent Velocity constraint for orbital maneuvers with Theory of Functional Connections
A. K. de Almeida, T. Vaillant, V. M. de Oliveira +9
Maneuvering a spacecraft in the cislunar space is a complex problem, since it is highly perturbed by the gravitational influence of both the Earth and the Moon, and possibly also t…