 ASD became Orbital Sciences Corporation's Sensor Systems Division in 1993 and developed the Major Constituent Analyzer for the International Space Station's atmosphere.SSD was sold again in 2001, becoming Hamilton Sundstrand Space, Land and Sea, Pomona Site, a few months after SSD's MCA began continuous on-orbit operation aboard Space Station.Pomona Site is updating and expanding the MCA for Orion, NASA's new manned spacecraft.