SPOCK: Enabling Cognitive Cloud Computing in Space for Low Latency Earth Observation

The SPOCK (Smart Processing Orbital Cloud Konstellation) initiative introduces novel constellation architecture concepts designed to enable Cognitive Cloud Computing in Space (3CS) capabilities addressing the growing demand for low-latency and high-performance data processing in Earth Observation (EO) missions. The project is currently being carried out by Indra and Aresys under ESA funding and follows up on previous initiatives related to the 3CS paradigm. This concept, previously explored by the ESA Advanced Concepts and Studies Office and ESA Φ lab through a dedicated ESA Discovery Campaign, focuses on the integration of artificial intelligence (AI), communication technologies and advanced information and communication technologies (ICT) within distributed space systems.
EO architectures rely heavily on ground based infrastructures leading to increased latency and bandwidth limitations that reduce responsiveness for time-critical applications such as disaster monitoring. SPOCK addresses these limitations by proposing a modular and scalable constellation concept that integrates advanced edge computing hardware, inter-satellite links and open standards to support distributed and federated processing as well as AI-driven analytics in space. The project aims to derive a holistic 3CS vision over a ten year horizon.
The system concept currently explores two mission configurations. The first is a four-satellite demonstrator implementing a tip-and-cue architecture with heterogeneous payloads, including synthetic aperture radar (SAR) and optical sensor to validate autonomous detection and inter-satellite coordination. The second configuration consists of a single satellite technology demonstrator acting as a space-based edge computing hub, capable of sensor fusion, dynamic tasking and interoperability with external communication constellations.
Key technologies include GPUs and FPGAs for onboard AI inference, ISLs to support federated processing and modular hardware and software architectures allowing in-flight reconfiguration. Overall, SPOCK positions itself as a precursor to future 3CS systems paving the way toward orbital cloud computing infrastructures and federated space based processing architectures for next generation EO missions.