| Mission type | Lunar orbiter |
|---|---|
| Operator | Soviet space program |
| COSPAR ID | 1974-037A |
| SATCAT no. | 7315 |
| Mission duration | 1 year and 6 months |
| Spacecraft properties | |
| Bus | Ye-8-LS |
| Manufacturer | GSMZ Lavochkin |
| Launch mass | 5,700 kilograms (12,600 lb)[1] |
| Start of mission | |
| Launch date | 29 May 1974, 08:56:51 UTC[1] |
| Rocket | Proton-K/D[2] |
| Launch site | Baikonur 81/24 |
| End of mission | |
| Deactivated | Early November 1975 |
| Orbital parameters | |
| Reference system | Selenocentric |
| Semi-major axis | 6,598.3 kilometres (4,100.0 mi) |
| Eccentricity | 0.18 |
| Periselene altitude | 219 kilometres (136 mi) |
| Aposelene altitude | 222 kilometres (138 mi) |
| Inclination | 19.35 degrees |
| Period | 130 minutes |
| Lunar orbiter | |
| Orbital insertion | 2 June 1974 |
| Orbits | ~3,875 |
Luna 22 (Ye-8-LS series) was an uncrewed space mission, part of the Soviet Luna program, also called Lunik 22.