| Mission type | Venus flyby[1] |
|---|---|
| Operator | OKB-1[1] |
| COSPAR ID | 1964-F01 |
| SATCATno. | 00277 |
| Mission duration | Launch failure |
| Spacecraft properties | |
| Spacecraft type | 3MV-1 |
| Manufacturer | Lavochkin |
| Launch mass | 800 kg (1,800 lb)[2] |
| Start of mission | |
| Launch date | 19 February 1964, 05:47:40 (1964-02-19UTC05:47:40Z) UTC[1] |
| Rocket | Molniya 8K78Ms/n T15000-19T103-12 |
| Launch site | Baikonur1/5[1] |
Zond 3MV-1 No.2[3] (orNo. 4A[4]), also known asVenera 1964A in the West, was aSoviet spacecraft, which was launched in 1964 as part of theZond program. Due to a problem with its carrier rocket third stage, it failed to reachlow Earth orbit.[4]
Zond 3MV-1 No.2 was launched at 05:47:40 UTC on 19 February 1964, atop aMolniya 8K78M carrier rocket flying fromSite 1/5 at theBaikonur Cosmodrome.[3] During ascent, LOX entered an RP-1 duct due to a leaking valve and formed a glob of explosive gel. 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 ofBarabinsk in Siberia.
