 Details of Soviet achievements were unknown to the German team and completely underestimated by Western intelligence until, in November 1957, the Sputnik 1 satellite was successfully launched to orbit by the Sputnik rocket based on R-7, the world's first intercontinental ballistic missile.First Soviet ballistic missile using storable propellants was developed from the German Wasserfall surface-to air missile (SAM) by Korolev's OKB.It was called the R-11 missile.