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Proceedings Paper

Next generation space telescope: control system issues
Author(s): Arthur J. Bradley; K. Tompetrini; Ivan B. Steiner; Gerald S. Nurre; J. Olivier; Max E. Nein; Abdullah S. Aljabri; Nancy W. Boggess; Laurence W. Fredrick
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Paper Abstract

The control system requirements for the next generation space telescope are discussed, based on the authors experience with Hubble Space Telescope (HST), Advanced X-Ray Astrophysics Facility (AXAF) and Space Infrared Telescope Facility (SIRTF). Since the HST design phase, there have been significant strides in the guidance and control domain (i.e., fiber optic gyroscopes, solid state star trackers and non-linear control algorithms). The control system design will be determined by the predicted spacecraft configuration, mirror geometry (6 to 8 meters will be considered) and science requirements. Spacecraft dimensions have been estimated for the telescope aperture range of interest. Presently, the Energiya rocket can only accommodate a 6 m telescope, the proposed Heavy Lift Launch Vehicle apparently can accommodate a 7 m telescope. A low Earth orbit (600 Km) has been adopted for this study, the advantage of Shuttle servicing and an accompanying long spacecraft life, weighed heavily in this decision. However, the possibility of a long spacecraft life in a high altitude orbit, with the requisite attitude control redundancy and fault tolerance, may be feasible.

Paper Details

Date Published: 1 November 1993
PDF: 12 pages
Proc. SPIE 1945, Space Astronomical Telescopes and Instruments II, (1 November 1993); doi: 10.1117/12.158755
Show Author Affiliations
Arthur J. Bradley, Allied Signal Aerospace Co. (United States)
K. Tompetrini, Allied Signal Aerospace Co. (United States)
Ivan B. Steiner, Allied Signal Aerospace Co. (United States)
Gerald S. Nurre, NASA Marshall Space Flight Ctr. (United States)
J. Olivier, NASA Marshall Space Flight Ctr. (United States)
Max E. Nein, NASA Marshall Space Flight Ctr. (United States)
Abdullah S. Aljabri, Jet Propulsion Lab. (United States)
Nancy W. Boggess, NASA Goddard Space Flight Ctr. (United States)
Laurence W. Fredrick, Univ. of Virginia (United States)

Published in SPIE Proceedings Vol. 1945:
Space Astronomical Telescopes and Instruments II
Pierre Y. Bely; James B. Breckinridge, Editor(s)

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