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NESC Technical Bulletin 23-06:Considerations for Software Fault Prevention and Tolerance
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By NASA
NASA’s uncrewed Artemis I mission launched from KSC on November 16, 2022. After a successful mission that included orbiting the Moon, the Orion spacecraft returned to Earth splashing down in the Pacific Ocean on December 11, 2022. While the spacecraft made a safe return to Earth, postflight inspection of Orion’s thermal protection indicated that the base heatshield did not perform as expected. The heatshield is composed of Avcoat, an ablative material designed to protect the crew module during the nearly 5000ºF temperatures experienced during atmospheric entry upon return from the Moon. Specifically, inspection revealed more than 100 locations where the charred Avcoat material chipped away from the heatshield.
The NESC formed a team of subject matter experts from across and outside of the Agency to assist the Orion Program team in the overall investigation. NESC team members are supporting or leading efforts in multi-physics analysis, material testing, fault tree and root cause analysis, aeroscience review, analysis peer review, nondestructive evaluation (NDE), as well as investigation of alternative heatshield concepts.
The NESC works closely with the Artemis I Char Loss Team to ensure the observed material loss is thoroughly understood so that decisions may be made regarding use for upcoming crewed missions. To date, NESC contributions have included pathfinding NDE techniques for postflight heatshield inspection, investigation of key Avcoat material properties and behavior, and providing key inputs to the fault tree development and disposition to guide a thorough investigation of possible causes.
View from Artemis I crew cabin window showing material loss during entry (foreground). An artist’s illustration of Orion crew module entering the Earth’s atmosphere.View the full article
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By European Space Agency
A key element of ESA’s role as Europe’s space agency is the expansion of space knowhow, by encouraging new actors into the field. Case in point: a Polish software company previously specialising in smartphone apps took on the challenge of designing the operating system for the main instrument of Proba-3 – an ambitious double spacecraft mission to reveal secrets of the Sun’s fiery atmosphere, the corona.
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By NASA
1 Min Read 2024 NESC Technical Update
Annual Report of NESC Technical Activities
On behalf of the NASA Engineering and Safety Center (NESC), I am pleased to provide you with the 2024 NESC Technical Update. This annual report summarizes the technical work, engineering advancements, and knowledge capture efforts we made in FY24. With support provided by members of our NASA community from across the centers, we focused our efforts on performing value-added independent testing, analysis, and assessments of NASA’s high-risk projects to ensure safety and mission success.
This report contains summaries of technical assessments requested by our stakeholders and the technical bulletins and innovative techniques that resulted from that assessment work. Several of the NASA Technical Fellows provide summaries of accomplishments in their respective disciplines, and expertise drawn from across the Agency is featured on the Center Pages.
We appreciate the opportunity to share our progress and highlight the accomplishments of our technically and culturally diverse, multidisciplinary, multigenerational teams. All NESC knowledge products are available at nasa.gov/nesc. As always, we value your feedback and engagement. Thank you for your continuing support of the NESC.
Timmy R. Wilson
Director, NASA Engineering and Safety Center
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By Space Force
SSC and USC partnered up to pair USC Trojans with SSC Guardians to work within real USSF programs. This partnership team acted as a “living laboratory” to identify strategies for implementing agile development into complex defense projects.
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By NASA
NASA logo NASA has awarded $15.6 million in grant funding to 15 projects supporting the maintenance of open-source tools, frameworks, and libraries used by the NASA science community, for the benefit of all.
The agency’s Open-Source Tools, Frameworks, and Libraries awards provide support for the sustainable development of tools freely available to everyone and critical for the goals of the agency’s Science Mission Directorate.
“We received almost twice the number of proposals this year than we had in the previous call,” said Steve Crawford, program executive, Open Science implementation, Office of the Chief Science Data Officer, NASA Headquarters in Washington. “The NASA science community’s excitement for this program demonstrates the need for sustained support and maintenance of open-source software. These projects are integral to our missions, critical to our data infrastructure, underpin machine learning and data science tools, and are used by our researchers, every day, to advance science that protects our planet and broadens our understanding of the universe.”
This award program is one of several cross-divisional opportunities at NASA focused on advancing open science practices. The grants are funded by NASA’s Office of the Chief Science Data Officer through the agency’s Research Opportunities for Space and Earth Science. The solicitation sought proposals through two types of awards:
Foundational awards: cooperative agreements for up to five years for open-source tools, frameworks, and libraries that have a significant impact on two or more divisions of the Science Mission Directorate. Sustainment awards: grants or cooperative agreements of up to three years for open-source tools, frameworks, and libraries that have significant impact in one or more divisions of the Science Mission Directorate. 2024 awardees are:
Foundation awards:
NASA’s Ames Research Center, Silicon Valley, CaliforniaPrincipal investigator: Ross Beyer “Expanding and Maintaining the Ames Stereo Pipeline” Caltech, Pasadena, CaliforniaPrincipal investigator: Brigitta Sipocz “Enhancement of Infrastructure and Sustained Maintenance of Astroquery” Cornell University, Scarsdale, New YorkPrincipal investigator: Ramin Zabih “Modernize and Expand arXiv’s Essential Infrastructure” NASA’s Goddard Space Flight Center, Greenbelt, MarylandPrincipal investigator: D. Cooley “Enabling SMD Science Using the General Mission Analysis Tool” NumFOCUS, Austin, TexasPrincipal investigator: Thomas Caswell “Sustainment of Matplotlib and Cartopy” NumFOCUSPrincipal investigator: Erik Tollerud “Investing in the Astropy Project to Enable Research and Education in Astronomy” Sustainment awards:
NASA’s Jet Propulsion Laboratory, Southern CaliforniaPrincipal investigator: Cedric David “Sustain NASA’s River Software for the Satellite Data Deluge,” three-year award Pennsylvania State University, University ParkPrincipal investigator: David Radice “AthenaK: A Performance Portable Simulation Infrastructure for Computational Astrophysics,” three-year award United States Geological Survey, Reston, VirginiaPrincipal investigator: Trent Hare “Planetary Updates for QGIS,” one-year award NASA JPLPrincipal investigator: Michael Starch “How To F Prime: Empowering Science Missions Through Documentation and Examples,” three-year award NASA GoddardPrincipal investigator: Albert Shih “Enhancing Consistency and Discoverability Across the SunPy Ecosystem,” three-year award Triad National Security, LLC, Los Alamos, New MexicoPrincipal investigator: Julia Kelliher “Enhancing Analysis Capabilities of Biological Data With the NASA EDGE Bioinformatics Platform,” four-year award iSciences LLC, Burlington, VermontPrincipal investigator: Daniel Baston “Sustaining the Geospatial Data Abstraction Library,” three-year award University of Maryland, College Park,Principal investigator: C Max Stevens “Sustaining the Community Firn Model,” three-year award Quansight, LLC, Austin, TexasPrincipal investigator: Dharhas Pothina “Ensuring a Fast and Secure Core for Scientific Python – Security, Accessibility and Performance of NumPy, SciPy and scikit-learn; Going Beyond NumPy With Accelerator Support,” three-year award For information about open science at NASA, visit:
https://science.nasa.gov/open-science
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Alise Fisher
Headquarters, Washington
202-617-4977
alise.m.fisher@nasa.gov
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