ESA GNC Conference Papers Repository
Rapid ADCS Design for Commerical Leo Constellations Designing for Deadline
Robust Attitude Determination and Control Subsystem (ADCS) design is dependent upon numerous and often contradictory elements, especially in the absence of pre-selected hardware specifications or in the presence of very strict design completion deadlines. This paper focuses on the need for a rapid and efficient ADCS design process, and describes how this was achieved by the team of Tessella and Thales Alenia Space France (TAS-F). This approach was followed during the Phase B ADCS design of the Globalstar second-generation constellation, where a number of hardware and time limitations rendered the completion of this phase a particularly challenging task. From initiation of the contract program, well-proven mode designs were demonstrated for Preliminary Design Review (PDR) approximately 9 months later, with software specifications issued just 3 months after. This paper explores the key elements of the design approach that allowed a successful ADCS design meeting these constraints in this timeframe.