Kosmos 382 was a Soyuz 7K-L1E modification of a Soyuz 7K-L1 "Zond" spacecraft and was successfully test launched into Low Earth Orbit on a Proton rocket designated as (Soyuz 7K-L1E No.2) on December 2, 1970.
The main purpose of the mission was to test the N1/L3 spacecraft's Block D lunar orbit insertion/descent stage by simulating the lunar orbit insertion burn, the lunar orbit circularization burn and the final lunar descent burn. Over the course of 5 days, the Block D was thus ignited three times to raise the initial ~190 km × ~300 km × 51.6° orbit to a final 2577 km × 5082 km × 55.87° orbit. The Block-D stage was fitted with cameras in the tanks to monitor the fuel and oxidizer behaviour in weightlessness and during acceleration .
The following maneuvers were performed:
- 190 km x 300 km orbit to 303 km x 5038 km orbit (delta-V=982 meters/second;
- 318 km x 5040 km orbit to 1616 km x 5071 km orbit (deltaV= 285 m/s);
- 1616 km x 5071 km orbit to 2577 km x 5082 km orbit (deltaV= 1311 m/s).
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