What is it about?
The CubeSpec mission utilizes a 12U CubeSat to conduct high-precision astronomical observations. A key feature of CubeSpec is the High-Precision Pointing Platform (HPPP), which ensures the CubeSat maintains the necessary pointing accuracy for stellar observations. The HPPP works alongside the primary Attitude Determination and Control System (ADCS) to correct high-frequency residual pointing errors. It uses a Fine Steering Mirror (FSM) driven by piezo-actuators for rapid adjustments and a Fine Guidance Sensor (FGS) for accurate pointing error estimates. This dual-stage control system achieves arcsecond-level pointing accuracy, overcoming the limitations of small satellites.
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Why is it important?
CubeSpec is set to be the first CubeSat mission to capture spectra of stars at optical wavelengths, achieving pointing stability levels far superior to those typically attained by CubeSats. This mission aims to showcase the potential of small satellites for high-precision pointing applications, making advanced space observations more accessible and cost-effective.
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This page is a summary of: Development of a High-Precision Pointing Platform for the CubeSpec Mission, January 2025, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2025-2318.
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