Aliases
Disambiguation
Refers to the percentage of spacecraft/vehicle mass that survives atmospheric breakup and fragmentation during reentry, not to be confused with breakup percentages in other contexts (structural failure modeling, general fragmentation statistics).
Stats
Concept
Quantitative measure of the proportion of a spacecraft or vehicle that survives atmospheric reentry and fragmentation, typically expressed as a percentage of total mass.
Medida quantitativa da proporção de uma espaçonave ou veículo que sobrevive à reentrada atmosférica e fragmentação, tipicamente expressa como uma percentagem da massa total.
Enrichment
- ARES | Orbital Debris Program Office | Debris ReentryNASA▎ high· 2026-05-14
- 10–40% of spacecraft mass typically survives reentry
- Breakup altitude 72–84 km, nominal 78 km
- Material composition determines survival rates
- Debris casualty risk standard: <1 in 10,000
- ARES | Orbital Debris Program Office | ORSATNASA▎ high· 2026-05-14
- ORSAT predicts reentry survivability of spacecraft components
- Uses integrated trajectory, aerodynamic, aerothermodynamic, and thermal/ablation models
- Determines demise via ablation heat thresholds
- Validates compliance with 1:10,000 casualty risk standard
- ESA - Reentry and collision avoidanceEuropean Space Agency▎ high· 2026-05-14
- ESA employs SCARAB tool for breakup and survival analysis
- Reentry analysis critical for space safety and casualty risk assessment
- Material properties fundamental to predicting debris survival
Breakup Percentages
Description (EN)
Stub generated by entity dedup. Will be enriched in Phase 6.
Descrição (PT-BR)
Stub gerado pela deduplicação de entidades. Será enriquecido na Fase 6.
<!-- enrichment:start -->Enrichment (EN)
Disambiguation: Refers to the percentage of spacecraft/vehicle mass that survives atmospheric breakup and fragmentation during reentry, not to be confused with breakup percentages in other contexts (structural failure modeling, general fragmentation statistics).
Breakup percentages are a quantitative measure in aerospace safety analysis representing the proportion of a spacecraft or launch vehicle that survives atmospheric reentry and fragmentation. Typically, 10–40% of spacecraft mass survives reentry depending on material composition and vehicle design; components made of high-melting-point materials (titanium, beryllium, carbon-carbon) survive longer than those of aluminum or other low-melting materials. The breakup process is analyzed using specialized tools such as NASA's Object Reentry Survival Analysis Tool (ORSAT), ESA's SCARAB, and other software that integrate trajectory modeling, aerothermodynamic analysis, and thermal ablation models to predict debris casualty risk and ground impact footprints. This metric is critical for compliance with space agency safety standards requiring casualty risk below 1-in-10,000 for uncontrolled reentries.
Enriquecimento (PT-BR)
Desambiguação: Refers to the percentage of spacecraft/vehicle mass that survives atmospheric breakup and fragmentation during reentry, not to be confused with breakup percentages in other contexts (structural failure modeling, general fragmentation statistics).
Percentuais de fragmentação são uma medida quantitativa na análise de segurança aeroespacial que representa a proporção de uma espaçonave ou veículo de lançamento que sobrevive à reentrada atmosférica e fragmentação. Tipicamente, 10–40% da massa de uma espaçonave sobrevive à reentrada, dependendo da composição do material e do projeto do veículo; componentes feitos de materiais com alto ponto de fusão (titânio, berílio, carbono-carbono) sobrevivem mais tempo do que aqueles feitos de alumínio ou outros materiais com baixo ponto de fusão. O processo de fragmentação é analisado usando ferramentas especializadas como a Ferramenta de Análise de Sobrevivência de Reentrada de Objetos (ORSAT) da NASA, SCARAB da ESA e outros softwares que integram modelagem de trajetória, análise aerotermodinâmica e modelos de ablação térmica para prever o risco de casualidade de detritos e áreas de impacto no solo. Esta métrica é crítica para conformidade com os padrões de segurança das agências espaciais que exigem risco de casualidade inferior a 1 em 10.000 para reentradas descontroladas.
External Sources
- ARES | Orbital Debris Program Office | Debris Reentry · NASA · reliability:
high— 10–40% of spacecraft mass typically survives reentry; Breakup altitude 72–84 km, nominal 78 km; Material composition determines survival rates; Debris casualty risk standard: <1 in 10,000 - ARES | Orbital Debris Program Office | ORSAT · NASA · reliability:
high— ORSAT predicts reentry survivability of spacecraft components; Uses integrated trajectory, aerodynamic, aerothermodynamic, and thermal/ablation models; Determines demise via ablation heat thresholds; Validates compliance with 1:10,000 casualty risk standard - ESA - Reentry and collision avoidance · European Space Agency · reliability:
high— ESA employs SCARAB tool for breakup and survival analysis; Reentry analysis critical for space safety and casualty risk assessment; Material properties fundamental to predicting debris survival