Flight
- Date and time (UTC)
- June 11, 1971, 10:00
- Launch designation
- 1971-055
- Mission
- Zenit-4MK
- Flight name
- Kosmos-427
- Vehicle flight ID
- 7801424-715
- Year
- Launches in 1971
Orbit and payload
- Initial apogee
- 351 km
- Payload mass to orbit
- 6.0 t
- Payloads
- 1
- GCAT launch code
- OS
Payloads
| Payload | Designation | Owner | Mission type | Mass | Fate |
|---|---|---|---|---|---|
| Kosmos-427 | 1971-055ANORAD 5289 | TsKBEM Filial No. 3 | Optical imaging | 2,310 kg | Landed · Jun 23, 1971 |
Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.