Dynamic Interaction of 2I/Borisov with a Structured Solar Flow: Observational Evidence from Geometric and Temporal Signatures

This dossier presents an in-depth observational analysis of the interstellar object 2I/Borisov, based on an independent, documented, and reproducible data-processing pipeline applied to reconstructed kinematic and geometric data.The study does not introduce a priori physical models, but focuses instead on the identification of emergent structural patterns directly derived from the data. Scientific objective The primary objective is the structural and dynamical characterization of the observed events, with particular attention to: temporal distribution of events, structural complexity, geometric configurations along the trajectory, angular behavior independent of intensity. Main results The analysis reveals the presence of distinct dynamical regimes, characterized by different levels of: intensity, structural complexity, angular configuration. In particular, the structural angle θS emerges as an autonomous geometric parameter, capable of: robustly discriminating between different classes of events, revealing an intrinsic bimodality, providing evidence of persistent structural configurations not attributable to statistical fluctuations or threshold effects. A clear internal coherence is also observed between amplitude, dynamical shock, and angular geometry, suggesting the existence of distinct physical regimes along the observed trajectory. Dossier contents The work includes: a detailed description of the adopted methodology, the formal definition of the observable quantities, the analysis of the temporal windowing, the presentation of the central and crucial results, a direct comparison with the interstellar object 1I/‘Oumuamua. The appendices provide: complete documentation of the analysis pipeline, summary tables of the most significant events, references to the source data (JPL Horizons),ensuring transparency, traceability, and reproducibility. Context and perspectives This study is part of a broader research program aimed at the structural and dynamical characterization of interstellar objects and minor bodies of the Solar System.The dossier represents a solid foundation for future comparative analyses, including extensions to objects of different nature, such as near-Earth asteroids, and for the development of advanced structural comparison tools. The data and analyses are made available for study, independent verification, and scientific comparison.