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PROTON 4
Launch Details
| Launched | 15 November 1968 |
| Flight ended | 23 July 1969 |
| Status | Decayed |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 3544 |
| COSPAR ID | 1968-103A |
| Observing |
Launched alongside
SL-13 R/B