Flight
- Date and time (UTC)
- September 17, 1961, 21:00
- Launch designation
- 1961 A BET
- Mission
- CORONA C'''-3
- Flight name
- Discoverer 31
- Vehicle flight ID
- 324/1114
- Flight code
- TAG031/CANE POLE
- Year
- Launches in 1961
Orbit and payload
- Initial apogee
- 403 km
- Payload mass to orbit
- 1.2 t
- Payloads
- 5
- GCAT launch code
- OS
Payloads
| Payload | Designation | Owner | Mission type | Mass | Fate |
|---|---|---|---|---|---|
| Discoverer 31 | 1961 A BETNORAD 186 | National Reconnaissance Office | Optical imaging | 123 kg | Reentered attached to another object · Oct 26, 1961 |
| GRD Package | 1961 A BET | US Air Force Space Systems Division | — | — | — |
| Vela Hotel Package 2 | 1961 A BET | US Air Force Space Systems Division | — | — | — |
| SRV 552 | 1961 A BET | National Reconnaissance Office | — | — | — |
| TOPSOC 2 | 1961 A BET | Secretary of the Air Force, Office of Special Projects (NRO Program A) | — | — | — |
Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.