Extravehicular Activity Micrometeoroid and Orbital Debris Risk Assessment Methodology

Hoffman, Kevin D ; Hyde, James L ; Christiansen, Eric L ; Lear, Dana M

关键词: EXTRAVEHICULAR ACTIVITY;    MICROMETEOROIDS;    RISK ASSESSMENT;    ASTRONAUTS;    AEROSPACE ENVIRONMENTS;    SPACE DEBRIS;    SPACE SUITS;   

RP-ID  :  JSC-E-DAA-TN64707

学科分类：航空航天科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

A well-known hazard associated with exposure to the space environment is the risk of vehicle failure due to an impact from a micrometeoroid and orbital debris (MMOD) particle. Among the vehicles of importance to NASA is the extravehicular mobility unit (EMU) “spacesuit” used while performing a US extravehicular activity (EVA). An EMU impact is of great concern as a large leak could prevent an astronaut from safely reaching the airlock in time resulting in a loss of life. For this reason, a risk assessment is provided to the EVA office at the Johnson Space Center (JSC) prior to certification of readiness for each US EVA.