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Proceedings Paper

Bidirectional reflectance distribution function and hemispherical reflectance of JSC MARS-1
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Paper Abstract

Novel data are presented of Bidirectional Reflectance Distribution Function (BRDF) and 8° directional/hemispherical reflective measurements of Martian regolith simulant JSC Mars-1. The scatterometer of the National Aeronautics and Space Administration's Goddard Space Flight Center (NASA's GSFC) Diffuser Calibration Facility (DCaF) was used for the measurements reported. The data were obtained with a monochromator-based light source in the UltraViolet (UV), Visible (VIS), and Near InfraRed (NIR) spectral regions. The BRDF measurements were performed at different angles of incidence, and over a range of in-plane and out-of-plane geometries. The 8° directional/hemispherical reflective measurements were calibrated using a gray Spectralon sample set of 7 plates. The results presented are NIST traceable through calibrated standard plates. The hemispherical and diffuse scatter data obtained from these studies are important for future Mars space and ground based observations.

Paper Details

Date Published: 22 October 2002
PDF: 11 pages
Proc. SPIE 4780, Surface Scattering and Diffraction for Advanced Metrology II, (22 October 2002); doi: 10.1117/12.461934
Show Author Affiliations
Georgi T. Georgiev, Science Systems and Applications, Inc. (United States)
James J. Butler, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 4780:
Surface Scattering and Diffraction for Advanced Metrology II
Zu-Han Gu; Alexei A. Maradudin, Editor(s)

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