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The project aims at improving the overall pointing performance and robustness with respect to uncertainties of large telecom platforms with highly flexible appendages and demanding pointing payloads.
Two performance class have been identified:
The selected solution is to estimate and pre-compensate the disturbance torque mainly due to propellant motion.
The main challenge was to find solutions both efficient and realistic at short to mid-term for telecom missions.
Strong improvement of pointing accuracies, thus improving payloads efficiencies and general competitiveness. With Antennas Tracking Systems: pointing is improved from 0.05 deg to 0.027 deg, including during manoeuvres. Without dedicated antennas pointing system: pointing is improved from 0.126 deg to 0.075 deg.
According to the 2 performance class identified, the project is divided in 2 cases:
The project is split into 4 tasks:
The project is finished.