Kosmos 388 (Russian: Космос 388 meaning Cosmos 388), known before launch as DS-P1-Yu No.43, was a Soviet satellite which was launched in 1970 as part of the Dnepropetrovsk Sputnik programme.

It was a 325-kilogram (717 lb) spacecraft, which was built by the Yuzhnoye Design Bureau, and was used as a radar calibration target for anti-ballistic missile tests.

[1] Kosmos 388 was successfully launched into low Earth orbit on 18 December 1970, with the rocket lifting off at 09:39:13 UTC.

[2] The launch took place from Site 133/1 at the Plesetsk Cosmodrome,[3] and used a Kosmos-2I 63SM carrier rocket.

[5] It was operated in an orbit with a perigee of 263 kilometres (163 mi), an apogee of 479 kilometres (298 mi), 70.9 degrees of inclination, and an orbital period of 92 minutes.