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Learn about RHONE, a novel emulator designed to bridge the gap between theoretical Space Computing Networks (SCN) research and real-world satellite operations in this 16-minute conference presentation from USENIX ATC '25. Discover how researchers from Peking University and Beijing University of Posts and Telecommunications developed a comprehensive solution to address the unique challenges of emulating satellite constellations, including harsh space environments with power and thermal constraints, and dynamic networking conditions. Explore RHONE's innovative two-phase emulation approach that combines offline modeling using real satellite telemetry data and hardware-in-the-loop chip mirroring with online container-based execution integrated with power, thermal, orbit, network, and computation models. Understand how the satellite COTS aligner and satellite network aligner components dynamically synchronize containers with actual satellite conditions to achieve both satellite- and constellation-level fidelity. Examine the evaluation results demonstrating RHONE's impressive scalability to 700 satellites on a single node, with power and computation model errors under 5% and thermal model errors within 1.3–2.5°C. Review two practical case studies showcasing RHONE's capabilities: a satellite network energy drain attack simulation and a real-time earth observation application, both highlighting the emulator's ability to replicate complex satellite and constellation dynamics for advancing SCN research without the prohibitive costs of actual space-based experimentation.
