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Proceedings Paper

Wide-field-of-view star tracker camera
Author(s): Isabella T. Lewis; Arno G. Ledebuhr; Timothy S. Axelrod; Joseph F. Kordas; Robert Hills
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Paper Abstract

A prototype wide-field-of-view (WFOV) star tracker camera has been fabricated and tested for use in spacecraft navigation. The most unique feature of this device is its 28 degree(s) X 44 degree(s) FOV, which views a large enough sector of the sky to ensure the existence of at least 5 stars of mv equals 4.5 or brighter in all viewing directions. The WFOV requirement and the need to maximize both collection aperture (F/1.28) and spectral input band (0.4 to 1.1 micrometers ) to meet the light gathering needs for the dimmest star have dictated the use of a novel concentric optical design, which employs a fiber optic faceplate field flattener. The main advantage of the WFOV configuration is the smaller star map required for position processing, which results in less processing power and faster matching. Additionally, a size and mass benefit is seen with a large FOV/smaller effective focal length (efl) sensor. Prototype hardware versions have included both image intensified and un-intensified CCD cameras. Integration times of

Paper Details

Date Published: 1 July 1991
PDF: 11 pages
Proc. SPIE 1478, Sensors and Sensor Systems for Guidance and Navigation, (1 July 1991); doi: 10.1117/12.45617
Show Author Affiliations
Isabella T. Lewis, OCA Applied Optics (United States)
Arno G. Ledebuhr, Lawrence Livermore National Lab. (United States)
Timothy S. Axelrod, Lawrence Livermore National Lab. (United States)
Joseph F. Kordas, Lawrence Livermore National Lab. (United States)
Robert Hills, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 1478:
Sensors and Sensor Systems for Guidance and Navigation
Jack F. Wade; Avi Tuchman, Editor(s)

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