1962-040A
2MV-1 No. 1 was the first of a new generation of planetary probes developed by OKB-1. The 8K78 rocket was modified with an improved 8D727K engine in the Blok A stage and a longer fairing. The Blok-L stage failed to work correctly, stranding the satellite in orbit. One of the four BOZ ullage motors failed to ignite, causing the vehicle to tumble. The Blok-L S1.5400A1 engine shut down after 45s of a planned 240s burn. The spacecraft would have carried out a Venus landing if successful.
| 2MV-1 No. 1 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1962 Aug 25 | 0218:45 | Launch by 8K78 | KB |
| 0223 | Blok-A sep | ||
| 0227 | Blok-I sep | 173 x 252 x 64.88 | |
| 0319:35 | BOZ burn | ||
| 0319 | BOZ motors failed | ||
| 0319 | Blok-L burn | ||
| 0319 | Tumbling | ||
| 0319 | Blok-L cutoff at 45s | ||
| 1962 Aug 28 | Reentered | ||
Payload:
- 2MV-1 Venus landing capsule
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