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Operational Assessment of Apollo Lunar Surface Extravehicular Activity
NTRS Full-Text: Click to View  [PDF Size: 11.4 MB]
Author and Affiliation:
Miller, Matthew James(Georgia Inst. of Tech., Atlanta, GA, United States);
Claybrook, Austin(Georgia Inst. of Tech., Atlanta, GA, United States);
Greenlund, Suraj(Georgia Inst. of Tech., Atlanta, GA, United States);
Marquez, Jessica J.(NASA Ames Research Center, Moffett Field, CA United States);
Feigh, Karen M.(Georgia Inst. of Tech., Atlanta, GA, United States)
Abstract: Quantifying the operational variability of extravehicular activity (EVA) execution is critical to help design and build future support systems to enable astronauts to monitor and manage operations in deep-space, where ground support operators will no longer be able to react instantly and manage execution deviations due to the significant communication latency. This study quantifies the operational variability exhibited during Apollo 14-17 lunar surface EVA operations to better understand the challenges and natural tendencies of timeline execution and life support system performance involved in surface operations. Each EVA (11 in total) is individually summarized as well as aggregated to provide descriptive trends exhibited throughout the Apollo missions. This work extends previous EVA task analyses by calculating deviations between planned and as-performed timelines as well as examining metabolic rate and consumables usage throughout the execution of each EVA. The intent of this work is to convey the natural variability of EVA operations and to provide operational context for coping with the variability inherent to EVA execution as a means to support future concepts of operations.
Publication Date: Jan 07, 2017
Document ID:
20170007261
(Acquired Aug 07, 2017)
Subject Category: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT; STATISTICS AND PROBABILITY
Report/Patent Number: NASA/TP-2017-219457, ARC-E-DAA-TN39193
Document Type: Technical Report
Contract/Grant/Task Num: WBS 811073.02.38.01.03
Financial Sponsor: NASA Ames Research Center; Moffett Field, CA United States
Description: 156p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution as joint owner in the copyright
NASA Terms: CONSUMABLES (SPACECRAFT); DEEP SPACE; EXTRAVEHICULAR ACTIVITY; LIFE SUPPORT SYSTEMS; METABOLISM; VARIABILITY; EXTRAVEHICULAR MOBILITY UNITS; APOLLO 14 FLIGHT; STOWAGE (ONBOARD EQUIPMENT); STATISTICAL ANALYSIS; TELEMETRY; TASKS; TIME LAG
Other Descriptors: APOLLO EXTRAVEHICULAR ACTIVITIES; PLANNING AND SCHEDULING; METABOLIC EXPENDITURE
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