Mission Type: Orbiter
Launch Vehicle: 8K82K + Blok D (Proton K no. 232-01 / Blok D no. 15L)
Launch Site: NIIP-5 / launch site 81P
Spacecraft Mass: c. 5,375 kg
Spacecraft Instruments: unknown
References:
-Deep Space Chronicle: A Chronology of Deep Space and Planetary Probes 1958-2000, by Asif A. Siddiqi, NASA Monographs in Aerospace History No. 24

During this third attempt at a circumlunar mission, the Proton rocket's second stage engine spuriously shut down at T+194.64 seconds due to an erroneous signal from the payload.

The emergency rescue system was activated, and the 7K-L1 capsule was later recovered about 520 kilometers from the launch pad.