SPUTNIK 2
| Launched | 2 November 1957 |
| Flight ended | 13 April 1958 |
| Status | Decayed |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 3 |
| COSPAR ID | 1957-002A |
| Observing |