SL-6 PLAT
| Launched | 21 December 1975 |
| Flight ended | 8 February 1976 |
| Status | Decayed |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 8512 |
| COSPAR ID | 1975-122C |
| Observing |
Launched alongside
PROGNOZ 4 SL-6 R/B RADUGA 1 SL-12 PLAT SL-12 R/B(1) SL-12 R/B SL-12 R/B SL-12 R/B(2)