Space Instrument Flight Software Verification and Development

Verification and Development of the STIX Flight Software

Ateleris was involved in the development of the flight software of the STIX instrumentSTIX stands for Spectrometer Telescope for Imaging X-rays and is flying on-board the ESA mission Solar Orbiter since February 2020. The telescope was built under the lead of the University of Applied Sciences Northwestern Switzerland FHNW with industry collaboration.

Our tasks included

  • improving the flight software functionality and reliability
  • developing, executing and evaluating the results of software verification tests on science modules, core system procedures and components, and hardware drivers.
  • developing ground-analysis software tools to support data analysis

Key Technologies/Terms

  • Embedded programming in C/C++
  • Real-Time Executive for Multiprocessor Systems (RTEMS)
  • Gaisler Leon3 Processor
  • Electronic Ground Equipment (EGSE) Testing



“We had a goal-oriented, no-fuss collaboration with Ateleris, and their software made It possible to fully exploit our instrument's full capabilities.”
“With Flight Software and In-Orbit verification support, Ateleris made vital contributions to ensure the success of the STIX Instrument, very flexible and target focused collaboration.”