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Large Aperture Space Telescopes in Formation: Modeling, Metrology, and Control

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Abstract

In this paper we summarize a concept definition and feasibility analysis for formation flying a representative large space telescope composed of separated optical elements. 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 or it may be in an Earth-trailing orbit for astrophysics. Extended applications are envisioned for exo-solar planet interferometric imaging by a formation of very large separated optics telescopes. Space telescopes, with such large apertures and optics with focal length f/10 to f/100, 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.

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References

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Authors and Affiliations

  1. Guidance & Control Analysis Group, Jet Propulsion Laboratory, Mail Stop 198-136B, Pasadena, CA, 91109-8099, USA

    Edward Mettler

  2. Guidance & Control Analysis Group, Jet Propulsion Laboratory, Mail Stop 198-231B, Pasadena, CA, 91109-8099, USA

    William G. Breckenridge

  3. Guidance & Control Analysis Group, Jet Propulsion Laboratory, Mail Stop 198-326, Pasadena, CA, 91109-8099, USA

    Marco B. Quadrelli

Authors
  1. Edward Mettler
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  2. William G. Breckenridge
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  3. Marco B. Quadrelli
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Correspondence to Edward Mettler.

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Mettler, E., Breckenridge, W.G. & Quadrelli, M.B. Large Aperture Space Telescopes in Formation: Modeling, Metrology, and Control. J of Astronaut Sci 53, 391–412 (2005). https://doi.org/10.1007/BF03546360

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  • DOI: https://doi.org/10.1007/BF03546360

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