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Article: Recent studies by J.F. Castet and co-authors add new data to spacecraft and rockets findings.
- Article from:
- Defense & Aerospace Week
- Article date:
- November 11, 2009
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"The technical literature has long recognized the importance of satellite reliability, but a statistical analysis of expansive on-orbit failure data is still lacking. As a result, inconsistencies persist in the literature due to the absence of an empirical basis for settling the issues, for example, regarding the existence or absence of satellite infant mortality," scientists in the United States report.
"Weibull distributions with a shape parameter larger than one are commonly used to model satellite reliability. This choice for the shape parameter fails to capture infant mortality and is shown here to be flawed. The present work fills a gap in the technical ...