Instrument pointing control system for the Stellar Interferometry Mission: Planet Quest

Paul B. Brugarolas; Bryan H. Kang

doi:10.1117/12.671043

28 June 2006 Instrument pointing control system for the Stellar Interferometry Mission: Planet Quest

Paul B. Brugarolas, Bryan H. Kang

Proceedings Volume 6268, Advances in Stellar Interferometry; 626825 (2006) https://doi.org/10.1117/12.671043
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

This paper describes the high precision Instrument Pointing Control System (PCS) for the Stellar Interferometry Mission (SIM) - Planet Quest. The PCS system provides front-end pointing, compensation for spacecraft motion, and feedforward stabilization, which are needed for proper interference. Optical interferometric measurements require very precise pointing (0.03 as, 1-σ radial) for maximizing the interference pattern visibility. This requirement is achieved by fine pointing control of articulating pointing mirrors with feedback from angle tracking cameras. The overall pointing system design concept is presented. Functional requirements and an acquisition concept are given. Guide and Science pointing control loops are discussed. Simulation analyses demonstrate the feasibility of the design.

Citation Download Citation

Paul B. Brugarolas and Bryan H. Kang "Instrument pointing control system for the Stellar Interferometry Mission: Planet Quest", Proc. SPIE 6268, Advances in Stellar Interferometry, 626825 (28 June 2006); https://doi.org/10.1117/12.671043

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