CHEOPS instrument flight software in operation

Roland Ottensamer; Christian Reimers; Armin Luntzer; Alessandro Pasetti; Marko Mečina; Philipp Löschl; Stefan Winkler; Franz Kerschbaum

doi:10.1117/12.2562165

13 December 2020 CHEOPS instrument flight software in operation

Roland Ottensamer, Christian Reimers, Armin Luntzer, Alessandro Pasetti, Marko Mečina, Philipp Löschl, Stefan Winkler, Franz Kerschbaum

Author Affiliations +

Proceedings Volume 11452, Software and Cyberinfrastructure for Astronomy VI; 114520Q (2020) https://doi.org/10.1117/12.2562165
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Abstract

CHEOPS, the Characterizing Exoplanets Satellite, is a Swiss-led ESA-S mission carrying out ultra-high precision photometry providing radii of transiting exoplanets. We have developed the Instrument Flight Software, which controls the instrument and processes the science data in real-time. The software implements over 100 ECSS TM/TC services and several state machines, with data processing tasks ranging from target star recognition, centroiding, on-board data reduction and compression to thermal control and FDIR. The flight hardware is based on the dual-core Leon3 processor. We present the approach that we took towards specification, design, implementation and qualification, then talk about the lessons learned especially during the commissioning.

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Roland Ottensamer, Christian Reimers, Armin Luntzer, Alessandro Pasetti, Marko Mečina, Philipp Löschl, Stefan Winkler, and Franz Kerschbaum "CHEOPS instrument flight software in operation", Proc. SPIE 11452, Software and Cyberinfrastructure for Astronomy VI, 114520Q (13 December 2020); https://doi.org/10.1117/12.2562165

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