The first satellite, Sputnik-1 Launch of Sputnik-1, 4 Oct 1957

Satellite Catalog Number 1 is given in the rocket Sputnik /Sputnik (A, SL-1) which launched Sputnik-1. Satellite Catalog Number 2 is SPUTNIK-1 1957-001B

http://www.ne.jp/asahi/hamradio/je9pel/sputnik1.htm

JE9PEL, Mineo Wakita