Table of Contents
1SCOPE
1.1Purpose
1.2Applicability
2APPLICABLEANDREFERENCEDOCUMENTS
3ACRONYMSANDDEFINITIONS
3.1Acronyms
3.2Definitions
4TechnicalMaterial
4.1Introduction
4.1.1References
4.2TheCurrentOrbitalDebrisEnvironment
4.2.1Introduction
4.2.2SourcesofDebrisandDistributions
4.2.3DebrisCount(>10cm)GraphsandFigures
4.2.4Breakups
4.2.5DebrisCausesandCounts
4.2.6EffectsofDebrisCollisions
4.2.7Uncertainty
4.2.8References
4.3FutureEnvironment
4.3.1Introduction
4.3.2DebrisCount
4.3.3LaunchActivity
4.3.4Implications
4.3.5References
4.4MeasurementsoftheOrbitalDebrisEnvironment
4.4.1Introduction
4.4.2TheU.S.SpaceSurveillanceNetwork
4.4.3RadarMeasurements
4.4.4OpticalMeasurements
4.4.5InSituMeasurements
4.4.6References
4.5ModelingtheOrbitalDebrisEnvironment
4.5.1Introduction
4.5.2ApplicabilityofanEngineeringModel
4.5.3LEGEND
4.5.4References
4.6Micro-MeteoroidOrbitalDebris(MMOD)Shielding
4.6.1Introduction
4.6.2SpacecraftMMODEnvironment
4.6.3ShieldingProbabilityofNoPenetrationLimits
4.6.4RiskAssessmentProcess
4.6.5BallisticLimitEquations
4.6.6BUMPERCode
4.6.7ProbabilityofNoPenetrationandDesign
Qualification
4.6.8RiskReductionPractices
4.6.9EnhancedShielding
4.6.10References
4.7Mitigation
4.7.1Introduction
4.7.2History
4.7.3CurrentStatus
4.7.4OtherAgencies/UNGuidelines
4.7.5SoftwareTools
4.7.6FutureofMitigation
4.7.7References
4.8Reentry
4.8.1Introduction
4.8.2CurrentStatusofReentryAnalysis
4.8.3AnalysesofReentrySurvivalbyOtherAgencies
4.8.4FutureImprovements
4.8.5References Abstract
Acts as a companion to NASA Procedural Requirements (NPR) 8715.6, NASA Procedural Requirements for Limiting Orbital Debris and NASA-STD 8719.14,