| Name of Satellite, Alternate Names | Navstar GPS IIF-6 (Navstar SVN 67, USA 251) |
| Country of Operator/Owner | USA |
| Operator/Owner | DoD/US Air Force |
| Users | Military/Commercial |
| Purpose | Navigation/Global Positioning |
| Class of Orbit | MEO |
| Type of Orbit | |
| Longitude of GEO (degrees) | 0 |
| Perigee (km) | 20174 |
| Apogee (km) | 20188 |
| Eccentricity | 0.000263643553915107 |
| Inclination (degrees) | 55.05 |
| Period (minutes) | 717.92 |
| Launch Mass (kg.) | 1630 |
| Dry Mass (kg.) | |
| Power (watts) | 1136 |
| Date of Launch | 17-05-2014 |
| Expected Lifetime | 10 yrs. |
| Contractor | Boeing Satellite Systems |
| Country of Contractor | USA |
| Launch Site | Cape Canaveral |
| Launch Vehicle | Delta 4 |
| COSPAR Number | 2014-026A |
| NORAD Number | 39741 |
| Comments |