1975-122A
Prognoz-4 was launched in Dec 1975 with its apogee over the sunward hemisphere. The SO-M bus was similar to SO but with improved systems.
| Prognoz-4 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1975 Dec 22 | 0208 | Launch by Molniya-M | KB |
| 0216 | Blok-I MECO | ||
| 0216 | Blok I sep | ||
| 0309? | Blok-L burn | ||
| 0313? | Blok-L MECO | ||
| 0313? | Blok-L sep | ||
| 1637 | Pass EL1:4 | ||
| 1975 Dec 23 | 5740.0 634 x 199000 x 65.0 (RAE) | ||
| 1979 Mar 25 | end of ops | ||
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