Cosmos 27

Launch data:

-Failure: failed to leave Earth orbit (attempted Venus Flyby?)

Descent date:	28 Mar 1964 - 07:12 UT
Lifetime:	1,16 days

01 Mar 1964: The Venus launch was delayed due to malfunctions during prelaunch service.
Launch 27 Mar 1964: During unpowed coast in parking orbit, the escape stage Blok L lost stable attitude due to a loss of the power circuit of the valves of the attitude control and stabilisation system.
The stage with payload remained in earth orbit as Cosmos 27.

Ref.: #1, #3(1964), #7, #8 - update: 17.11.02