Rehearsing the complex data flow of multi-object spectrograph survey projects

C. C. Worley; N. A. Walton; D. N. A. Murphy; F. Paz-Chinchón; M. J. Irwin; A. Molaeinezhad; A. Gonneau

doi:10.1117/12.2629253

25 August 2022 Rehearsing the complex data flow of multi-object spectrograph survey projects

C. C. Worley, N. A. Walton, D. N. A. Murphy, F. Paz-Chinchón, M. J. Irwin, A. Molaeinezhad, A. Gonneau

Author Affiliations +

Proceedings Volume 12187, Modeling, Systems Engineering, and Project Management for Astronomy X; 1218706 (2022) https://doi.org/10.1117/12.2629253
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

The new era of Multi-Object Spectrograph (MOS) Survey projects, in particular WEAVE (on the WHT at the ING) and 4MOST (on VISTA at ESO Paranal), require complex data flow systems. These systems encompass the software development for target selection, fibre configuration and observation at the telescope front-end and spectral processing, spectral analysis and archiving at the back-end. The system must also include quality control procedures, signaling mechanisms and alert reporting to ensure optimal use of telescope time and scientifically robust data products. Key to ensuring a fully functioning data flow system by first light are Operational Rehearsals (OpR) which use simulated data in end-to-end tests of the entire system. The Cambridge Astronomical Survey Unit (CASU) has been integral in defining and coordinating these OpR efforts, in its role of providing the back-end data management and the spectral processing pipelines, for both WEAVE and 4MOST. The WEAVE OpR programme is complete and we await first light. The first two rehearsal stages (OpR1 and OpR2) of the 4MOST OpR programme are complete while the third, and most complex, stage will commence in 2022.

Conference Presentation

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C. C. Worley, N. A. Walton, D. N. A. Murphy, F. Paz-Chinchón, M. J. Irwin, A. Molaeinezhad, and A. Gonneau "Rehearsing the complex data flow of multi-object spectrograph survey projects", Proc. SPIE 12187, Modeling, Systems Engineering, and Project Management for Astronomy X, 1218706 (25 August 2022); https://doi.org/10.1117/12.2629253

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