USA 193
Satellite information USA 193 - NROL-21
| Spacetrack Directory Name | USA 193 |
| Alternative name | NROL-21 |
| Orbit launches |
2006-12-14 |
| Deorbitation date |
2008-02-29 |
| Days in orbit | 442 |
| Country/organisation of origin | USA (US) |
| Starting point | AFWTR (Vandenberg Air Force Base, USA) |
