Site 133, also known as Raduga (Russian: Радуга meaning Rainbow), is a launch complex at the Plesetsk Cosmodrome in Russia. It is used by Rockot, and previously Kosmos carrier rockets. It consists of a single pad, originally designated 133/1, and later 133/3.The first launch from Site 133 was of a Kosmos-2I, on 16 March 1967, carrying the Kosmos 148 satellite. Ninety Kosmos-2 launches were conducted, the last of which was on 18 June 1977, with Kosmos 919.