Authors

Yuji Takubo

Publications 2

Preprint Open access

Unified Relative Orbital Element Framework for Eccentric Formation Flying

Yuji Takubo, Simone D'Amico · 2026

Quasi-nonsingular relative orbital elements (qnsROE) are among the most widely used state representations for formation flying and rendezvous in near-circular inclined orbits. They admit closed-form perturbed state transition matrices (STMs) and a direct geometric mapping, which underpins eccentricity/inclination (E/I) …

Preprint Open access

OrbitTAMP: Grounding Language Models for Task and Motion Planning in Spacecraft Rendezvous

Yuji Takubo, Daniele Gammelli, Marco Pavone et al. · 2026

Spacecraft rendezvous and proximity operations (RPO) are currently planned through an expertise-intensive process in which engineers translate high-level operational intent into safe, dynamically feasible trajectories, creating a bottleneck to scalable operations. Large language model (LLM)-based agents could offer an …

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