| Kosmos 408 | |
| Mission Type: | ABM radar target |
| Cospar Id: | 1971-037A |
| Spacecraft Type: | DS-P1-Yu |
| Manufacturer: | Yuzhnoye |
| Launch Date: | UTC |
| Launch Rocket: | Kosmos-2I 63SM |
| Launch Site: | Plesetsk 133/1 |
| Orbit Reference: | Geocentric |
| Orbit Regime: | Low Earth |
| Orbit Inclination: | 81.8 degrees |
| Orbit Period: | 100.66 minutes |
| Apsis: | gee |
Kosmos 408 (ru|Космос 408 meaning Cosmos 408), known before launch as DS-P1-Yu No.37, was a Soviet satellite which was launched in 1971 as part of the Dnepropetrovsk Sputnik programme. It was a 250kg (550lb) spacecraft, which was built by the Yuzhnoye Design Bureau, and was used as a radar calibration target for anti-ballistic missile tests.[1]
Kosmos 408 was successfully launched into low Earth orbit on 24 April 1971, with the rocket lifting off at 11:15:02 UTC.[2] The launch took place from Site 133/1 at the Plesetsk Cosmodrome,[3] and used a Kosmos-2I 63SM carrier rocket.
Upon reaching orbit, it was assigned its Kosmos designation, and received the International Designator 1971-037A.[4]
Kosmos 408 was the forty-first of seventy nine DS-P1-Yu satellites to be launched,[1] and the thirty-seventh of seventy two to successfully reach orbit.[5] It was operated in an orbit with a perigee of, an apogee of, 81.8 degrees of inclination, and an orbital period of 100.66 minutes.[1] It remained in orbit until it decayed and reentered the atmosphere on 29 December 1971.[6]