18 July 2014 Evolution of the SOFIA tracking control system
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Abstract
The airborne observatory SOFIA (Stratospheric Observatory for Infrared Astronomy) is undergoing a modernization of its tracking system. This included new, highly sensitive tracking cameras, control computers, filter wheels and other equipment, as well as a major redesign of the control software. The experiences along the migration path from an aged 19" VMbus based control system to the application of modern industrial PCs, from VxWorks real-time operating system to embedded Linux and a state of the art software architecture are presented. Further, the concept is presented to operate the new camera also as a scientific instrument, in parallel to tracking.
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Norbert Fiebig, Holger Jakob, Enrico Pfüller, Hans-Peter Röser, Manuel Wiedemann, Jürgen Wolf, "Evolution of the SOFIA tracking control system", Proc. SPIE 9152, Software and Cyberinfrastructure for Astronomy III, 915216 (18 July 2014); doi: 10.1117/12.2055278; https://doi.org/10.1117/12.2055278
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