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Proceedings Paper

High-resolution deployable telescope for satellite applications
Author(s): Giulia Pica; Luca Ciofaniello; Stefania Mattei; Maria Rosaria Santovito; Roberto Gardi
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Paper Abstract

CO.RI.S.T.A. is involved in a research project funded by ASI (Italian Space Agency), named MITAR, to realise a very compact, lightweight deployable telescope in visible wavelength range to get earth images from microsatellite. The satellite considered for the study is SMART, an Italian academic multi-mission microsatellite operating on circular sun-synchronous orbits. The telescope has a Cassegrain configuration with a parabolic primary mirror and an hyperbolic secondary mirror. This configuration guaranties the best aberrations corrections and the best compactness. The primary and the secondary mirror are 40 cm and 10 cm in diameter respectively, while their relative distance is 52cm. Mirrors will be realised with innovative composite material to obtain lightweight optical elements. Thanks to its limited size and light weight, the system can be easily deployed. The deployable structure will keep the secondary mirror close to the primary one during launch phases. Once in orbit, a system of lenticular tape springs and dumpers will extend the structure. The structure will be enclosed in multilayer blankets that will shield the sensor from light and will thermally stabilize the structure, preventing excessive thermal deformation. The images will be detected by a very high resolution CCD camera installed onboard the satellite.

Paper Details

Date Published: 2 February 2004
PDF: 8 pages
Proc. SPIE 5234, Sensors, Systems, and Next-Generation Satellites VII, (2 February 2004); doi: 10.1117/12.510654
Show Author Affiliations
Giulia Pica, Consortium for Research on Advanced Remote Sensing Systems (Italy)
Luca Ciofaniello, Consortium for Research on Advanced Remote Sensing Systems (Italy)
Stefania Mattei, Consortium for Research on Advanced Remote Sensing Systems (Italy)
Maria Rosaria Santovito, Consortium for Research on Advanced Remote Sensing Systems (Italy)
Roberto Gardi, Seconda Univ. degli Studi di Napoli (Italy)


Published in SPIE Proceedings Vol. 5234:
Sensors, Systems, and Next-Generation Satellites VII
Roland Meynart; Joan B. Lurie; Steven P. Neeck; Michelle L. Aten; Haruhisa Shimoda, Editor(s)

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