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1 Introduction
Pages 4-6

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From page 4...
... Objects ranging from paint chips to fragments of exploded rocket upper stages to intact spacecraft orbit through the regions in which ......
From page 5...
... More recently, the shuttle program office has planned missions so that, whenever possible, the orbiter maintains orientations that protect its most vulnerable components from the greater part of the meteoroid and orbital debris flux. In the near future, the program plans to shield some of the orbiter's most vulnerable components against meteoroids and orbital debris.
From page 6...
... Chapter 3 reviews the shuttle program's risk assessment and risk management strategies, and Chapter 4 looks at the tools NASA uses to assess the nsk. Chapter 5 explores the use of collision warning and avoidance systems, and Chapter 6 describes steps that can be taken to improve the shuttle's survivability.

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