| Name of Satellite, Alternate Names | Satmex 4 (Solidaridad 2) |
| Country of Operator/Owner | Mexico |
| Operator/Owner | Satellites Mexicanos S.A. de C.V. (SatMex; Loral Global Alliance) |
| Users | Commercial |
| Purpose | Communications |
| Class of Orbit | GEO |
| Type of Orbit | |
| Longitude of GEO (degrees) | -114.9 |
| Perigee (km) | 35777 |
| Apogee (km) | 35794 |
| Eccentricity | 0.000201634424926759 |
| Inclination (degrees) | 0.74 |
| Period (minutes) | 1436.08 |
| Launch Mass (kg.) | 2276 |
| Dry Mass (kg.) | 1641 |
| Power (watts) | 3300 |
| Date of Launch | 08-10-1994 |
| Expected Lifetime | 14 yrs. |
| Contractor | Hughes Space and Communications Company |
| Country of Contractor | USA |
| Launch Site | Guiana Space Center |
| Launch Vehicle | Ariane 44L |
| COSPAR Number | 1994-065A |
| NORAD Number | 23313 |
| Comments | 18 C-band, 16 Ku-band; coverage of national territory with television, radio and telephony signals; launched by Mexican Secretaria de Comunicaciones y Transportes, later privatized and taken over by Satlelites Mexicanos S.A. de C.V. |