A Method for Calculation of the Resilience of a Space System

A system's ability to retain its capability when impacted by one or more threats is often referred to as its resilience. There is a desire within the U.S. Department of Defense (DoD) to quantitatively calculate resilience to compare the values of space system architectures. This paper presents a method for calculating a resilience value that represents an expected value of the retained capability for a particular threat scenario. A method for calculating a system resilience value over a range of threats is also presented as a secondary calculation.