Venera 3MV-1 No.2
| Mission type | Venus flyby |
|---|---|
| Operator | OKB-1 |
| COSPAR ID | 1964-F01 |
| SATCAT no. | 00277 |
| Mission duration | Failed to orbit |
| Spacecraft properties | |
| Spacecraft type | 3MV-1 |
| Launch mass | 800 kg (1,800 lb) |
| Start of mission | |
| Launch date | 19 February 1964, 05:47:40 UTC |
| Rocket | Molniya-M 8K78M s/n T15000-19T103-12 |
| Launch site | Baikonur 1/5 |
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Zond 3MV-1 No.2 (or No. 4A ), also known as Venera 1964A in the West, was a Soviet spacecraft, which was launched in 1964 as part of the Zond program. Due to a problem with its carrier rocket third stage, it failed to reach low Earth orbit.
Zond 3MV-1 No.2 was launched at 05:47:40 UTC on 19 February 1964, atop a Molniya 8K78M carrier rocket flying from Site 1/5 at the Baikonur Cosmodrome. During ascent, LOX entered an RP-1 duct due to a leaking valve and formed a glob of explosive gel, so when core separation and Blok I ignition began, the thrust section exploded. The remains of the stage and probe landed 52 miles (85 kilometers) north of the town of Barabinsk in Siberia.
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