Calibration of optical components for the DS-1 space probe

Richard R. Zito

doi:10.1117/12.279245

26 September 1997 Calibration of optical components for the DS-1 space probe

Richard R. Zito

Proceedings Volume 3141, Scattering and Surface Roughness; (1997) https://doi.org/10.1117/12.279245
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

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.

Citation Download Citation

Richard R. Zito "Calibration of optical components for the DS-1 space probe", Proc. SPIE 3141, Scattering and Surface Roughness, (26 September 1997); https://doi.org/10.1117/12.279245

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