Former NSA employee Margaret Newsham claims that she worked on the configuration and installation of software that makes up the ECHELON system while employed at Lockheed Martin, from 1974 to 1984 in Sunnyvale, California, in the United States, and in Menwith Hill, England, in the UK. At that time, according to Newsham, the code name ECHELON was NSA's term for the computer network itself. Lockheed called it "P415". The software programs were called "SILKWORTH" and "SIRE". A satellite named "VORTEX" intercepted communications. An image available on the internet of a fragment apparently torn from a job description shows Echelon listed along with several other code names.