SL-6 R/B
| Launched | 11 November 1965 |
| Flight ended | 16 November 1965 |
| Status | Decayed |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 1731 |
| COSPAR ID | 1965-091B |
| Observing |
Timeline
| 1965 Nov 12 | – | Launch from Site 31/6 at the Baikonur Cosmodrome |
| 1966 Feb 27 | – | Flyby of Venus |
| 1966 Feb 27 | – | Spacecraft failed to reestablish contact after flyby |
| 1966 Mar 4 | – | Spacecraft declared lost |