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Title: Formation metrology and control for large separated optics space telescopes
Authors: Mettler, E.
Quadrelli, M.
Breckenridge, W.
Issue Date: 29-Oct-2002
Citation: International Symposium on Formation Flying: Mission Technology
Toulouse, France
Abstract: In this paper we present formation flying performance analysis initial results for a representative large space telescope composed of separated optical elements [Mett 02]. A virtual-structure construct (an equivalent rigid body) is created by unique metrology and control that combines both centralized and decentralized methods. The formation may be in orbit at GEO for super-resolution Earth observation, as in the case of Figure 1, or it may be in an Earth-trailing orbit for astrophysics, Figure 2. Extended applications are envisioned for exo-solar planet interferometric imaging by a formation of very large separated optics telescopes, Figure 3. Space telescopes, with such large apertures and f/10 to f/100 optics, are not feasible if connected by massive metering structures. Instead, the new virtual-structure paradigm of information and control connectivity between the formation elements provides the necessary spatial rigidity and alignment precision for the telescope.
Appears in Collections:JPL TRS 1992+

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