Solar array reliability in satellite operations

Providing reliable power over the anticipated mission life is critical to all satellites; therefore solar arrays are one of the most vital links to satellite mission success. Solar arrays are exposed to the harshest environment of virtually any satellite component causing a significant amount of documented anomalies. It is clear that solar array reliability is a serious, industry-wide issue. This paper will document a statistical analysis that was undertaken to deduce the factors affecting satellite reliability. Suggestions to improve the reliability of the solar arrays will be included. Solar array reliability is an issue that must be addressed to both reduce costs and ensure continued viability of the commercial and government assets on orbit.