Flight
- Date and time (UTC)
- April 4, 1969, 13:00
- Launch designation
- 1969-033
- Mission
- DS-P1-Yu No. 20
- Flight name
- Kosmos-277
- Vehicle flight ID
- V295-06
- Year
- Launches in 1969
Orbit and payload
- Initial perigee
- 269 km
- Initial apogee
- 466 km
- Inclination
- 70.9°
- Payload mass to orbit
- 0.200 t
- Payloads
- 1
- GCAT launch code
- OS
Payloads
| Payload | Designation | Owner | Mission type | Mass | Fate |
|---|---|---|---|---|---|
| Kosmos-277 | 1969-033ANORAD 3855 | Proto-Vozdhusnoy Oborony | Calibration | 200 kg | Reentered (orbital decay) · Jul 6, 1969 |
Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.