This proposal aims to develop an innovative Pointing and Focus Correction System (PFCS) to address critical challenges in achieving high-precision observations with small satellites in Low Earth Orbit (LEO). The PFCS represents a transformative leap in space instrumentation, enabling high-precision pointing stability at the 2-arcsecond level and adaptive focus adjustments. These capabilities are essential for unlocking the potential of small satellite platforms for advanced astrophysical research, planetary defense, and high-resolution imaging of celestial objects. The PFCS development targets the growing demand for precision in space-based observations. Current limitations in satellite platform stability and focus adjustment restrict the scientific utility of small satellites for cutting-edge applications. The PFCS will bridge this gap by providing a versatile and compact solution that ensures high pointing accuracy and stable focus over extended observation periods, even under the challenging conditions of space. The systems design is tailored to support a wide range of scientific objectives, from detecting faint exoplanetary transits to tracking Near-Earth Asteroids (NEAs) and Near-Earth Objects (NEOs) for planetary defense. Its versatility ensures applicability across a diverse array of scientific missions and future space exploration endeavors.
The project is structured into four key phases aligned with the European Cooperation for Space Standardization (ECSS): Conceptual Design (Phase 0/A): Validate mission feasibility through simulations, define requirements, and conduct a Preliminary Requirements Review (PRR). Preliminary Design (Phase B): Develop a PFCS prototype, validate critical technologies, and conduct a Preliminary Design Review (PDR). Detailed Design (Phase C): Refine the design, integrate advanced control algorithms, and conduct a Critical Design Review (CDR). Integration and Validation (Reaching TRL-7): Integrate the PFCS into an engineering model, perform rigorous tests in a thermovacuum chamber, and validate its performance in a relevant operational environment.
By enabling new levels of precision in space-based observations, the PFCS has the potential to redefine the role of small satellites in astrophysical research and beyond. It will support missions requiring long-duration monitoring, high-resolution imaging, and precise tracking of dynamic celestial objects. The PFCSs modular and scalable design ensures adaptability to a wide range of satellite platforms, enhancing its applicability across scientific and commercial sectors. This project aligns with the Spanish Plan Estatal de Investigación Científica, Técnica y de Innovación, specifically its focus on space research and technology development. By positioning Spain as a leader in advanced space instrumentation, the PFCS project will foster international collaborations, attract talent, and contribute to the growing field of small satellite technologies.
The PFCS is not only a technological innovation but also a foundational tool for the next generation of space missions, driving advancements in astrophysics, planetary science, and beyond. This project marks a pivotal step in enhancing the precision, versatility, and impact of small satellites in space exploration. 29
