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for the CARIOQA-PMP consortiumCARIOQA-PMP (Cold Atom Rubidium Interferometer in Orbit for Quantum Accelerometry – Pathfinder Mission Preparation) aims for the development of atom interferometry for a future application in earth observation. Atom interferometers offer the perspective of complementing established sensor technology, implying an improvement in the gravity field recovery.Whereas quantum sensors based on atom interferometry are studied worldwide and commercial gravimeters are available, the adaptation and qualification for a satellite mission imposes new challenges. Activities in Europe investigating this technology in microgravity facilities show promising results, but are limited by the available microgravity time. Consequently, a pathfinder mission is conceived as the next step towards quantum-sensor-enhanced gravity missions.Within CARIOQA-PMP, the consortium will develop an engineering model for an accelerometer based on atom interferometry adapted for the accommodation on a satellite. It includes scientists supporting the development and evaluating future mission concepts. This contribution will outline the background and the scope of the CARIOQA-PMP project.CARIOQA-PMP is a joint European project, including experts in satellite instrument development (Airbus, Exail SAS, TELETEL, LEONARDO), quantum sensing (LUH, SYRTE, LP2N, LCAR, ONERA, FORTH), space geodesy, Earth sciences and users of gravity field data (LUH, TUM, POLIMI, DTU), as well as in impact maximisation and assessment (PRAXI Network/FORTH, G.A.C. Group), coordinated by the French and German space agencies CNES and DLR under CNES lead. Funded by the European Union.
