| Name of Satellite, Alternate Names | Keyhole 6 (NRO L49, Advanced KH-11, KH-12-6, Improved Crystal, USA 224) |
| Country of Operator/Owner | USA |
| Operator/Owner | National Reconnaissance Office (NRO) |
| Users | Military |
| Purpose | Reconnaissance |
| Class of Orbit | LEO |
| Type of Orbit | Sun-Synchronous |
| Longitude of GEO (degrees) | 0 |
| Perigee (km) | 200 |
| Apogee (km) | 1000 |
| Eccentricity | 0.0573888091822095 |
| Inclination (degrees) | 97.8 |
| Period (minutes) | 97 |
| Launch Mass (kg.) | 18000 |
| Dry Mass (kg.) | 10000 |
| Power (watts) | |
| Date of Launch | 20-01-2011 |
| Expected Lifetime | 5+ yrs. |
| Contractor | Lockheed Martin |
| Country of Contractor | USA |
| Launch Site | Vandenberg AFB |
| Launch Vehicle | Delta 4 Heavy |
| COSPAR Number | 2011-002A |
| NORAD Number | 37348 |
| Comments | Believed to be KH-11 class. |