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Proceedings Paper

Very high pointing accuracy star-tracker optics trade-off analysis
Author(s): M. Magnani
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Paper Abstract

The Far-Infrared and Sub-millimeter Space Telescope (FIRST) Astronomy Mission, is a cornerstone of the ESA science program for space observations in the 0.1 to 1 mm wavelength band. A very high accuracy star tracker has to be developed for the pointing and stabilization functions of the FIRST spacecraft. This paper deals with the optics trade-off analysis of this new star tracker VHPA, acronym derived from `very high pointing accuracy.' The optics trade-off consists of a comparative analysis of the following configurations: dioptric, catadioptric, Schmidt and Ritchey-Chretien telescopes. The results are shown and the polychromatic tests of image quality are reported, including centroid error function. A table of merit is provided in order to select the configuration proposed as baseline.

Paper Details

Date Published: 15 April 1993
PDF: 12 pages
Proc. SPIE 1780, Lens and Optical Systems Design, 17801Z (15 April 1993); doi: 10.1117/12.142870
Show Author Affiliations
M. Magnani, Officine Galileo (Italy)

Published in SPIE Proceedings Vol. 1780:
Lens and Optical Systems Design
Hannfried Zuegge, Editor(s)

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