hazard to the station or crew if the ISS collides with meteoroids or debris too large to be shielded against but too small to be tracked by ground based-sensors.

In this report, the committee examines the ISS program strategy for reducing the hazard of meteoroid and debris impact and recommends alternative strategies where appropriate. Chapter 2 examines the overall ISS meteoroid and debris risk management strategy. Chapter 3 looks at the NASA meteoroid and debris environment models, and Chapter 4 examines the vulnerability of the ISS to impact and the use of protective shields. Chapter 5 addresses methods to reduce the risk to the station and crew in the event of a damaging impact. Finally, Chapter 6 explores the use of collision warning and avoidance systems.

REFERENCES

NRC (National Research Council). 1995a. Orbital Debris: A Technical Assessment. Committee on Space Debris, Aeronautics and Space Engineering Board . Washington, D.C.: National Academy Press.

NRC (National Research Council). 1995b. The Capabilities of Space Stations. Committee on Space Station, Aeronautics and Space Engineering Board . Washington, D.C.: National Academy Press.

Portree, D.S.F., and J.P. Loftus, Jr. 1993. Orbital Debris and Near-Earth Environmental Management: A Chronology . NASA Reference Publication 1320. Linthicum Heights, Maryland: NASA Center for Aerospace Information.



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