| Name of Satellite, Alternate Names | AsiaSat-3S (Asiasat 3SA) |
| Country of Operator/Owner | China (PR) |
| Operator/Owner | Asia Satellite Telecommunications Co. Ltd. (SES [Société Européenne des Satellites (SES)]) |
| Users | Commercial |
| Purpose | Communications |
| Class of Orbit | GEO |
| Type of Orbit | |
| Longitude of GEO (degrees) | 105.55 |
| Perigee (km) | 35780 |
| Apogee (km) | 35792 |
| Eccentricity | 0.000142328494164532 |
| Inclination (degrees) | 0.02 |
| Period (minutes) | 1436.07 |
| Launch Mass (kg.) | 3480 |
| Dry Mass (kg.) | 2500 |
| Power (watts) | 10000 |
| Date of Launch | 21-03-1999 |
| Expected Lifetime | 15 yrs. |
| Contractor | Boeing Satellite Systems |
| Country of Contractor | USA |
| Launch Site | Baikonur Cosmodrome |
| Launch Vehicle | Proton K |
| COSPAR Number | 1999-013A |
| NORAD Number | 25657 |
| Comments | 28 C-band, 16 Ku-band; broadcasting, internet services, multimedia, telecommunications |