In 1958, the OSI made the first significant attempt to measure the power of a radar for intelligence gathering, known as the Quality ELINT program. It consisted of installing electronic measuring equipment into a C-119 aircraft, and flying missions, disguised as supply-runs, through the air corridors of Germany.[1] This led to the MELODY and PALLADIUM programs, which attempted to gauge the power and sensitivity of Soviet ground-based tracking radars using "ghost aircraft".[18][19] These programs were integrated into the DDR upon its formation, under the Office of ELINT.[2][4]