LEADER 05077nam 2200649 a 450 001 9910818484403321 005 20240417005927.0 010 $a0-309-21977-9 010 $a1-283-37640-7 010 $a9786613376404 010 $a0-309-21975-2 035 $a(CKB)2550000000075208 035 $a(EBL)3378898 035 $a(SSID)ssj0000630690 035 $a(PQKBManifestationID)11392489 035 $a(PQKBTitleCode)TC0000630690 035 $a(PQKBWorkID)10767030 035 $a(PQKB)11735562 035 $a(MiAaPQ)EBC3378898 035 $a(Au-PeEL)EBL3378898 035 $a(CaPaEBR)ebr10520706 035 $a(CaONFJC)MIL337640 035 $a(OCoLC)923284657 035 $a(EXLCZ)992550000000075208 100 $a20120114d2011 uy 0 101 0 $aeng 135 $aurcn||||||||| 181 $ctxt 182 $cc 183 $acr 200 10$aLimiting future collision risk to spacecraft $ean assessment of NASA's meteoroid and orbital debris programs /$fNational Research Council of the National Academies 205 $a1st ed. 210 $aWashington, D.C. $cNational Academies Press$d2011 215 $a1 online resource (180 p.) 300 $a"Committee for the Assessment of NASA's Orbital Debris Programs, Aeronautics and Space Engineering Board, Division on Engineering and Physical Sciences." 311 $a0-309-21974-4 320 $aIncludes bibliographical references. 327 $a""Front Matter""; ""Preface""; ""Acknowledgment of Reviewers""; ""Contents""; ""Summary""; ""1 Introduction and Historical Background""; ""2 Orbital Debris Environment: Detection and Monitoring""; ""3 Orbital Debris Modeling and Simulation""; ""4 The Meteoroid Environment and Its Effects on Spacecraft""; ""5 Risk Assessment and Uncertainty""; ""6 Spacecraft Protection in the MMOD Environment""; ""7 Mitigation of Orbital Debris""; ""8 Hazards Posed by Reentry of Orbital Debris""; ""9 Conjunction Assessment Risk Analysis and Launch Collision Avoidance""; ""10 Spacecraft Anomalies"" 327 $a""11 Issues External to NASA""""12 Management and Organizational Issues""; ""13 Preparing for the Future""; ""14 Compiled List of Findings and Recommendations""; ""Appendixes""; ""Appendix A: Letter of Request""; ""Appendix B: Statement of Task""; ""Appendix C: Committee and Staff Biographical Information""; ""Appendix D: Acronyms""; ""Appendix E: Glossary""; ""Appendix F: Reprinted Workshop Report"" 330 $a"Derelict satellites, equipment and other debris orbiting Earth (aka space junk) have been accumulating for many decades and could damage or even possibly destroy satellites and human spacecraft if they collide. During the past 50 years, various National Aeronautics and Space Administration (NASA) communities have contributed significantly to maturing meteoroid and orbital debris (MMOD) programs to their current state. Satellites have been redesigned to protect critical components from MMOD damage by moving critical components from exterior surfaces to deep inside a satellite's structure. Orbits are monitored and altered to minimize the risk of collision with tracked orbital debris. MMOD shielding added to the International Space Station (ISS) protects critical components and astronauts from potentially catastrophic damage that might result from smaller, untracked debris and meteoroid impacts. Limiting future collision risk to spacecraft: an assessment of NASA's meteoroid and orbital debris programs examines NASA's efforts to understand the meteoroid and orbital debris environment, identifies what NASA is and is not doing to mitigate the risks posed by this threat, and makes recommendations as to how they can improve their programs. While the report identified many positive aspects of NASA's MMOD programs and efforts including responsible use of resources, it recommends that the agency develop a formal strategic plan that provides the basis for prioritizing the allocation of funds and effort over various MMOD program needs. Other necessary steps include improvements in long-term modeling, better measurements, more regular updates of the debris environmental models, and other actions to better characterize the long-term evolution of the debris environment." --$cPublisher's description. 606 $aSpace vehicle accidents$xPrevention 606 $aSpace vehicles$xMeteoroid protection 606 $aSpace debris 615 0$aSpace vehicle accidents$xPrevention. 615 0$aSpace vehicles$xMeteoroid protection. 615 0$aSpace debris. 676 $a629.4 712 02$aNational Research Council (U.S.).$bCommittee for the Assessment of NASA's Orbital Debris Programs. 712 02$aNational Research Council (U.S.).$bAeronautics and Space Engineering Board. 712 02$aNational Research Council (U.S.).$bDivision on Engineering and Physical Sciences. 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910818484403321 996 $aLimiting future collision risk to spacecraft$94122053 997 $aUNINA