Flight
- Date and time (UTC)
- August 23, 1985, 22:33
- Launch designation
- 1985-075
- Mission
- US-A reactor
- Flight name
- Kosmos-1677
- Vehicle flight ID
- 45099-803
- Year
- Launches in 1985
Orbit and payload
- Initial apogee
- 1,005 km
- Payload mass to orbit
- 4.3 t
- Payloads
- 1
- GCAT launch code
- OS
Payloads
| Payload | Designation | Owner | Mission type | Mass | Fate |
|---|---|---|---|---|---|
| Kosmos-1677 | 1985-075ANORAD 15986 | Soviet Navy | Signals intelligence | 1,154 kg | In orbit |
Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.