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Proceedings Paper

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

Paper Details

Date Published: 28 June 2006
PDF: 12 pages
Proc. SPIE 6268, Advances in Stellar Interferometry, 626825 (28 June 2006); doi: 10.1117/12.671043
Show Author Affiliations
Paul B. Brugarolas, Jet Propulsion Lab. (United States)
Bryan H. Kang, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 6268:
Advances in Stellar Interferometry
John D. Monnier; Markus Schöller; William C. Danchi, Editor(s)

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