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Humans to Mars, but How Many? Using Training Requirements Modeling to Inform Crew SizeMissions to Mars will differ from previous human spaceflight missions in that the onboard crew of astronauts will be required to operate in an Earth-independent manner due to the long communication delays. Without a systematic, repeatable process to determine the number and composition of crew necessary to successfully accomplish these missions, NASA increases the risk that crew sizes may be too small to meet primary mission objectives under nominal conditions and, more consequentially, that crewmembers may not have the expertise needed to successfully respond to unforeseen failures without the real-time expertise of the Mission Control Central (MCC) team NASA currently relies upon.

The NASA Engineering and Safety Center (NESC) is developing a methodology for assessing the trade space of factors that affect the number of crew for future missions. This methodology includes the consideration of results from three human performance models developed using the Improved Performance Research and Integration Tool (IMPRINT) modeling platform as well as a custom-built model on expertise trained within the crew. The IMPRINT results will be presented in the modeling and simulation sub-tag. Here we present results of a model based on NASA’s crew qualification and responsibility matrix (CQRM), a tool used to identify the crew qualifications for each area of responsibility (operation, system, and payload) for a mission. The model outputs an optimized allocation of training assignments along with a flight-assigned CQRM that can be used to consider the expertise that can be trained within a crew of a given size. We discuss the CQRM model result implications on the trade space for Mars mission crew size.
Document ID
20240002206
Acquisition Source
Johnson Space Center
Document Type
Presentation
Authors
Donna L Dempsey
(Johnson Space Center Houston, United States)
Date Acquired
February 20, 2024
Meeting Information
Meeting: DoD HFE TAG #76
Location: Hunstville, AL
Country: US
Start Date: April 22, 2024
End Date: April 26, 2024
Sponsors: United States Department of Defense
Funding Number(s)
WBS: 869021.03.72.01.04
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
Mars
Crew Size
Training

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