The Gaia AVU-GSR pipeline: a verification pipeline for the global astrometric sphere reconstruction and its future developments

Alberto Vecchiato; Mario G. Lattanzi; Beatrice Bucciarelli; Valentina Cesare; Ugo Becciani; Raffaella Buzzi; Deborah Busonero; Ruben De March; Mario Gai; Alberto Riva

doi:10.1117/12.3018932

25 July 2024 The Gaia AVU-GSR pipeline: a verification pipeline for the global astrometric sphere reconstruction and its future developments

Alberto Vecchiato, Mario G. Lattanzi, Beatrice Bucciarelli, Valentina Cesare, Ugo Becciani, Raffaella Buzzi, Deborah Busonero, Ruben De March, Mario Gai, Alberto Riva

Author Affiliations +

Proceedings Volume 13101, Software and Cyberinfrastructure for Astronomy VIII; 1310135 (2024) https://doi.org/10.1117/12.3018932
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

AVU-GSR is a pipeline designed to solve the problem of the Global Astrometric Sphere Reconstruction of the Gaia ESA mission whose goal is to replicate the AGIS baseline process. The pipeline produces an independent solution using a different astrometric model and different algorithms for the solution of this problem, thus providing an effective way to assess the reliability of the solution, as it is called by the absolute character of the satellite measurements. It recently passed its qualification phase with real data, successfully solving the sphere reconstruction problem at the sub-mas level with Cycle 2 data. We review the context, the current status of the pipeline, and the development needed to cope with the goal of contributing to the forthcoming Gaia Data Release four.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Alberto Vecchiato, Mario G. Lattanzi, Beatrice Bucciarelli, Valentina Cesare, Ugo Becciani, Raffaella Buzzi, Deborah Busonero, Ruben De March, Mario Gai, and Alberto Riva "The Gaia AVU-GSR pipeline: a verification pipeline for the global astrometric sphere reconstruction and its future developments", Proc. SPIE 13101, Software and Cyberinfrastructure for Astronomy VIII, 1310135 (25 July 2024); https://doi.org/10.1117/12.3018932

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