| Name of Satellite, Alternate Names | Galileo IOV-2 FM4 |
| Country of Operator/Owner | ESA |
| Operator/Owner | European Space Agency |
| Users | Commercial |
| Purpose | Navigation/Global Positioning |
| Class of Orbit | MEO |
| Type of Orbit | |
| Longitude of GEO (degrees) | 0 |
| Perigee (km) | 23217 |
| Apogee (km) | 23227 |
| Eccentricity | 0.000168964585022979 |
| Inclination (degrees) | 55.3 |
| Period (minutes) | 844.69 |
| Launch Mass (kg.) | 700 |
| Dry Mass (kg.) | |
| Power (watts) | 1420 |
| Date of Launch | 12-10-2012 |
| Expected Lifetime | 12 yrs. |
| Contractor | EADS Astrium |
| Country of Contractor | Germany/UK/Italy |
| Launch Site | Guiana Space Center |
| Launch Vehicle | Soyuz-Fregat |
| COSPAR Number | 2012-055B |
| NORAD Number | 38858 |
| Comments | Operational nucleus of the full 30-satellite constellation. |