Michael Guyote (Boeing LTS, Inc.), Jennifer Okada (Boeing LTS, Inc.)
Kira J. Abercromby, (ESCG)
Keywords: NROC, Non-Resolved Object Characterization
Abstract:
Materials exposed to space weathering have exhibited marked spectral changes which include both a darkening and reddening of the spectra. For many years, we have conducted research into the physics behind these phenomena. This research (in the wavelength region of 0.4-0.9 microns (um)) has been fruitful and has resulted in a graphics-interface based application which produces expected spectra of materials which closely match observations. In addition, we have also established a link between basic physics of the optical properties of submicroscopic particles and the resulting spectra, and have implemented the first phase of a library of statistical analysis techniques designed to aid in object and material classification of ground-based observations of space weathered materials.
We are continuing to extend our research scope by increasing the wavelengths under consideration to include near-infrared (0.4 – 2.5 um). The research utilizes data fusion techniques to aid in linking the a priori information gained from basic physics to the observed phenomena and to aid in determining spectral features that are unique to a specific space weathering environment or material. The research team is also utilizing data fusion techniques coupled with an augmented graphical interface application which will allow development of a system of algorithms which will provide accurate prediction of (and accurate categorization of) space environmental spectral effects.
Date of Conference: September 10-14, 2006
Track: Non-Resolved Object Characterization