Provide global measurement of winds at all levels of the atmosphere, up to 30 km. Aeolus supports:
Launch Date: January 2018 (Vega)
Mission Duration: Funded until end 2021; with a minimum 36 months nominal operations phase.
Configuration: Octagonal structure with fixed solar wings, 5.3 m long, cross-section of 0.8 m2; winglets for aerodynamic stabilisation; ultra-stable CFRP structure, EGG instrument structure in carbon-carbon; no moving parts; modulated ion propulsion system for along-track drag-free control; drag sensing done by EGG instrument; attitude sensing in drag-free mode by star trackers and EGG instrument; attitude actuation by magnetic torquers; 8 days full autonomy.
Stabilisation: 3-axis stabilised; controlled to local orbit reference frame
Mass: 1200 kg Beginning of Life, including 280 kg fuel load.
Mission operations: Flight operations from ESOC; satellite maintenance from ESTEC; payload data ground processing at KSAT and ECMWF user services from ESRIN