Flight
- Date and time (UTC)
- June 27, 1977, 18:30
- Launch designation
- 1977-056
- Mission
- HEXAGON SV-13
- Flight name
- HEXAGON SV13
- Vehicle flight ID
- 23D-17
- Year
- Launches in 1977
Orbit and payload
- Initial apogee
- 271 km
- Payload mass to orbit
- 11.4 t
- Payloads
- 7
- GCAT launch code
- OS
Payloads
| Payload | Designation | Owner | Mission type | Mass | Fate |
|---|---|---|---|---|---|
| OPS 4800 | 1977-056ANORAD 10111 | National Reconnaissance Office | Optical imaging | 8,211 kg | Deorbited · Dec 23, 1977 |
| SRV Mission 1213-1 | 1977-056 | National Reconnaissance Office | — | — | — |
| SRV Mission 1213-2 | 1977-056 | National Reconnaissance Office | — | — | — |
| SRV 1809 | 1977-056 | National Reconnaissance Office | — | — | — |
| SRV Mission 1213-3 | 1977-056 | National Reconnaissance Office | — | — | — |
| SRV Mission 1213-4 | 1977-056 | National Reconnaissance Office | — | — | — |
| S76-1 | 1977-056A | USAF SMC/DoD Space Test Program | — | — | — |
Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.