 Kim has been leading the development of KSDS since August 2012 in order to increase the efficiency of satellite design and analysis along with reducing development cost and time.The KSDS is capable of performing solar cell degradation, AOCS (Attitude & Orbit Control Subsystem) disturbance, thermal, radiation, link budget, power budget, radiation dose, and contamination analysis.These solvers are all integrated into a framework providing user-friendly pre-post processing.