| Name of Satellite, Alternate Names | Skynet 4F |
| Country of Operator/Owner | United Kingdom |
| Operator/Owner | Ministry of Defence |
| Users | Military |
| Purpose | Communications |
| Class of Orbit | GEO |
| Type of Orbit | |
| Longitude of GEO (degrees) | -34.04 |
| Perigee (km) | 35773 |
| Apogee (km) | 35801 |
| Eccentricity | 0.000332091942026235 |
| Inclination (degrees) | 3.23 |
| Period (minutes) | 1436.15 |
| Launch Mass (kg.) | 1510 |
| Dry Mass (kg.) | 830 |
| Power (watts) | 1200 |
| Date of Launch | 07-02-2001 |
| Expected Lifetime | 7 yrs. |
| Contractor | Astrium |
| Country of Contractor | France/UK/Germany |
| Launch Site | Guiana Space Center |
| Launch Vehicle | Ariane 44L |
| COSPAR Number | 2001-005B |
| NORAD Number | 26695 |
| Comments | Used primarily by UK´s armed forces, government departments, agencies and other organizations that require secure communications. |