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A 3D finite element model of the Orbiter, with color coded regions representing different shield
materials used on the outer surfaces of the vehicle, is used for the
threat assessment. Shield properties include thickness, material density and
spacing. The image illustrates the Orbiter model with property regions
defined. Different colors represent different materials, such as tiles,
window panes, engine nozzles, etc.
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Notices: What You Need to Know About NASA JSC Web Policies
