28 November 1969, 09:00 UTC
Soyuz 7K-L1E No.1

L1E #1, a reduced Zond L1 spacecraft with instrumented Blok-D upper stage to test lunar-insertion burns in high elliptical Earth orbit. Proton-K/D from Baikonur Site 81/23 failed on 28 November 1969 and did not reach orbit.
- Outcome
- Failure
- Payload to orbit
- Did not reach orbit
- Flight
- 18th
- of 38 Proton / UR-500 K/D flights
- Date and time
- 28 November 1969, 09:00 UTC
- Rocket
- Proton / UR-500 K/D
- Builder
- Khrunichev
- Launch site
- 81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Unknown
- Launches in 1969
- 117th of 125
