With satellite applications becoming increasingly common in recent years, the propulsion systems that control the orbit or attitude of spacecraft are expected to offer "better performance," "easier handling" and "lower cost." To replace current propulsion systems using hazardous propellants, Mitsubishi Heavy Industries, Ltd. (MHI) is developing a new system that use low-toxicity propellants ("green propellants") known as the green propellant reaction control system (GPRCS). GPRCS was selected as one of the mission equipment items for the Innovative Satellite Technology Demonstraion-1 of the Innovative Satellite Technology Demonstration Program by the Japan Aerospace Exploration Agency (JAXA) and the GPRCS we have developed will be used for the on-orbit demonstration in the program. The satellite is to be launched by the end of fiscal 2018. The on-orbit demonstration period of the GPRCS is about one year.
