Kosmos 382 (L1E)
The payload stack consisted of a reduced L1 type spacecraft attached to a heavily instrumented Blok-D upper stage. The L1 spacecraft did not have a heat shield for reentry and remained intentionally attached to the upper stage. The Blok-D stage was fitted with cameras in the tanks to monitor the fuel and oxidizer behaviour in weightlessness and during acceleration.
The first L1E mission did not reach orbit due to a failure of the Proton launch vehicle.
The second one was successfully orbited and named Kosmos 382. Over the course of 5 days, the Blok-D was ignited three times to raise the initial ~190 km × ~300 km × 51.6° orbit to a final 2577 km × 5082 km × 55.87° orbit to simulate the lunar orbit insertion burn, the lunar orbit circularization burn and the descent burn to bring the LK lunar lander just over the surface.
|Type / Application:||Technology|
|Configuration:||7K-L1E with Blok-D|
|Lifetime:||5 days ?|
|Orbit:||2577 km × 5082 km, 55.87° (final)|
|Kosmos (313) (L1E 1)||1969-F14||28.11.1969||Ba LC-81/23||F||Proton-K Blok-D|
|Kosmos 382 (L1E 2K)||1970-103A||02.12.1970||Ba LC-81/23||Proton-K Blok-D|