PHASE A STUDY OF THE STEP MISSION Programme Discovery Programme Reference 1995-45 Contractor MMS Start Date 1995 End Date 1995 Country France More Like This Possible “Multiplier effect” of ESA R&D budgets Applications and Implementations of atom-based Inertial Quantum Sensors New Design Methodologies and Techniques New Design Methodologies and Techniques fundamental issues in the aerothermodynamics of planetary-atmosphere (re)entry