TY - RPRT TI - NASA's Solar Dynamics Observatory (SDO): A Systems Approach to a Complex Mission AU - Ruffa, John A. AU - Ward, David K. AU - Bartusek, Lisa M. AU - Bay, Michael AU - Gonzales, Peter J. AU - Pesnell, William D. PY - 2012 UR - https://ntrs.nasa.gov/citations/20120002029 ID - 20120002029 ER -