Kosmos 378
| Mission type | Ionospheric |
|---|---|
| COSPAR ID | 1970-097A |
| SATCAT no. | 04713 |
| Spacecraft properties | |
| Spacecraft type | DS-U2-IP |
| Manufacturer | Yuzhnoye |
| Launch mass | 710 kilograms (1,570 lb) |
| Start of mission | |
| Launch date | 17 November 1970, 18:20:01 UTC |
| Rocket | Kosmos-3M |
| Launch site | Plesetsk 132/2 |
| End of mission | |
| Decay date | 17 August 1972 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee altitude | 233 kilometres (145 mi) |
| Apogee altitude | 1,697 kilometres (1,054 mi) |
| Inclination | 74 degrees |
| Period | 104.4 minutes |
Kosmos 378 (Russian: Космос 378 meaning Cosmos 378), also known as DS-U2-IP No.1, was a Soviet satellite which was launched in 1970 as part of the Dnepropetrovsk Sputnik programme. It was a 710-kilogram (1,570 lb) spacecraft, which was built by the Yuzhnoye Design Bureau, and was used to study the ionosphere.