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Proceedings Paper

Calibration of optical components for the DS-1 space probe
Author(s): Richard R. Zito
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Paper Abstract

The deep space one (DS-1) probe is a mini-tour photo reconnaissance mission of Earth-Mars space. Target bodies include an asteroid, a comet, and the planet Mars. Central to this mission is an accurate measurement of the reflectance of the primary mirror of the imaging system. Knowledge of this reflectance will allow calculation of the absolute albedos of the target bodies encountered. Scattering measurements were also made on the so-called 'diffuser plate' of the optical train. This component was intended to be used only for the solar occultation experiment which measures the solar intensity as a function of atmospheric depth as Mars comes between the Sun and the probes optical detectors. The diffuser plate was designed to reduce the solar intensity by scattering light in an isotropic fashion. However, it has been found that the diffuser plate is not an isotropic scatterer. This report describes the equipment used to make the reflectance and scattering measurements, as well as the results obtained from the measurement program.

Paper Details

Date Published: 26 September 1997
PDF: 13 pages
Proc. SPIE 3141, Scattering and Surface Roughness, (26 September 1997); doi: 10.1117/12.279245
Show Author Affiliations
Richard R. Zito, Richard R. Zito R & D Corp. (United States)

Published in SPIE Proceedings Vol. 3141:
Scattering and Surface Roughness
Zu-Han Gu; Alexei A. Maradudin, Editor(s)

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