Flight
- Date and time (UTC)
- February 18, 1961, 22:57
- Launch designation
- 1961 ZET
- Mission
- CORONA RM-2
- Flight name
- Discoverer 21
- Vehicle flight ID
- 261/1102
- Flight code
- TAG021/BENCH WARRANT
- Year
- Launches in 1961
Orbit and payload
- Initial apogee
- 1,067 km
- Payload mass to orbit
- 0.936 t
- Payloads
- 1
- GCAT launch code
- OS
Payloads
| Payload | Designation | Owner | Mission type | Mass | Fate |
|---|---|---|---|---|---|
| Discoverer 21 | 1961 ZETNORAD 84 | US Air Force Ballistic Missile Division | Optical imaging | 146 kg | Reentered attached to another object · Apr 20, 1962 |
Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.