Nanosat Systems Architecture and Future Applications

 Abstract:

 The traditional subsystem based architecture used for the design of spacecraft has evolved over many years as systems became very large and complex. This approach, when used to design a small spacecraft, can introduce inefficiencies that burden the system design and physical implementation of a specific mission. Current development of small spacecraft missions has highlighted the need to look at the system design without a preconceived architecture that is based on traditional subsystems.  The ST-5 mission will be used as an example of these issues.   New approaches for future small spacecraft systems architecture and design will be presented. The trend in NASA’s Earth and Space Science Enterprises is toward multiple smaller spacecraft for a variety of new missions.   Generic and specific mission concepts will be discussed that depend on optimizing system design and cost effectiveness.