Article Dans Une Revue Astronomy & Astrophysics - A&A Année : 2024

Adaptive optics telemetry standard. Design and specification of a novel data exchange format

Tiago Gomes
  • Fonction : Auteur
Carlos M. Correia
  • Fonction : Auteur
Lisa Bardou
  • Fonction : Auteur
Sylvain Cetre
  • Fonction : Auteur
Johann Kolb
  • Fonction : Auteur
Timothy Morris
  • Fonction : Auteur
Nuno Morujão
  • Fonction : Auteur
Paulo Garcia
  • Fonction : Auteur

Résumé

Context. The amount of adaptive optics (AO) telemetry generated by visible/near-infrared ground-based observatories is ever greater, leading to a growing need for a standardised data exchange format to support performance analysis, AO research, and development activities that involve large-scale telemetry mining, processing, and curation.
Aims: This paper introduces the Adaptive Optics Telemetry (AOT) data exchange format as a standard for sharing AO telemetry from visible/infrared ground-based observatories. AOT is based on the flexible image transport system (FITS) and aims to provide unambiguous and consistent data access across various systems and configurations, including natural and single- or multiple-laser guide-star AO systems.
Methods: We designed AOT with a focus on two key use cases: atmospheric turbulence parameter estimation and point-spread function reconstruction. We prototyped and tested the design using existing AO telemetry datasets from multiple systems: single conjugate with natural and laser guide stars, tomographic systems with multi-channel wavefront sensors, and single- and multi-wavefront correctors in systems featuring either a Shack-Hartmann or Pyramid as the main wavefront sensor.
Results: The AOT file structure has been thoroughly defined, with specified data fields, descriptions, data types, units, and expected dimensions. To support this format, we have developed a Python package that enables the data conversion, reading, writing, and exploration of AOT files; it has been made publicly available and is compatible with a general-purpose Python package manager. We have demonstrated the flexibility of the AOT format by packaging data from five different instruments, installed on different telescopes.
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insu-04726490 , version 1 (10-10-2024)

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Tiago Gomes, Carlos M. Correia, Lisa Bardou, Sylvain Cetre, Johann Kolb, et al.. Adaptive optics telemetry standard. Design and specification of a novel data exchange format. Astronomy & Astrophysics - A&A, 2024, 686, ⟨10.1051/0004-6361/202348486⟩. ⟨insu-04726490⟩
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