1965-070A
After the Kosmos-71 to 75 quintet placed in 500 km orbits, the 65S3 launched a second quintet into a much higher 1400 km orbit. The second stage and quintet payload entered an elliptical orbit with a low perigee and a 1500 km apogee a few minutes after launch, and coasted to apogee. At apogee, the engine restarted for a short burn which circularized the orbit, and the five Strela-1 satellites were ejected.
| Kosmos-80 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1965 Sep 3 | 1400 | Launch by 65S3 | KB |
| 1402? | Stage 2 burn 1 | ||
| 1408? | Stage 2 MECO-1 | ||
| 1458? | Stage 2 burn 2 | ||
| 1458? | Stage 2 sep | 115.0 1357 x 1555 x 56.0 | |
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