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Proceedings Paper

Solar Simulation For Testing Off-Axis Light Attenuation Of A Star Sensor Assembly
Author(s): Stephen Kendrick; Robert Kovacs; Angelo La Vaglia
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Paper Abstract

The presence of extraneous light sources has often represented a problem to the reli-able operation of stellar sensors. The Bendix Star Sensor Assembly (SSA) is designed to accurately detect faint stars (+4 visual magnitude) with the existence of bright objects (sun, moon, etc.) near the field of view. A measurement was needed of the SS's off-axis light attenuation when operating as close as 40° to the sun. This was accomplished through careful control of a 16 by 10 meter solar-thermal-vacuum chamber. Background scattered light was minimized and mapped enabling accurate photometric testing with the SSA under going simulated solar impingement. The test results showed that the SSA will provide a minimum system attenuation of 1013:1 when operating at 40° to the sun. This paper sum marizes the test concepts and techniques formulated and the problems resolved in proving that a) such a test was indeed feasible and would reliably represent an accurate measure of SSA performance and b) the SSA did, in fact, perform to its requirement.

Paper Details

Date Published: 26 September 1977
PDF: 8 pages
Proc. SPIE 0107, Stray Light Problems in Optical Systems, (26 September 1977); doi: 10.1117/12.964609
Show Author Affiliations
Stephen Kendrick, The Bendix Corporation (United States)
Robert Kovacs, The Bendix Corporation (United States)
Angelo La Vaglia, The Bendix Corporation (United States)

Published in SPIE Proceedings Vol. 0107:
Stray Light Problems in Optical Systems
John D. Lytle; Howard E. Morrow, Editor(s)

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