Zond 3MV-1 No.2

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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 (1964-02-19UTC05:47:40Z) UTC
Rocket Molniya-M 8K78M s/n T15000-19T103-12
Launch site Baikonur 1/5

Zond 3MV-1 No.2[1] (or No. 4A [2]), 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.[2]

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.[1] 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.

See also[edit]


  1. ^ a b McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 10 January 2011. 
  2. ^ a b Zak, Anatoly. "Russia's unmanned missions to Venus". RussianSpaecWeb. Archived from the original on May 26, 2011. Retrieved 10 January 2011.