| Mission type | Communications |
|---|---|
| Operator | Intelsat |
| COSPAR ID | 2012-045A |
| Mission duration | 15 years |
| Spacecraft properties | |
| Bus | BSS-702MP |
| Manufacturer | Boeing Satellite Systems |
| Start of mission | |
| Launch date | 19 August 2012, 06:54:59 UTC |
| Rocket | Zenit-3SL |
| Launch site | Odyssey |
| Contractor | Sea Launch |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Longitude | 58° West |
| Period | 24 hours |
| Transponders | |
| Band | 40 IEEE C band 40 IEEE Ku band |
| Coverage area | Canada United States Latin America Caribbean Europe |
Intelsat 21 is a communications satellite manufactured by Boeing Space Systems for the Intelsat Corp, based on the BSS-702MP platform. It was launched in August 2012 from a mobile platform in the equatorial Pacific Ocean. and replaces the Intelsat 9 satellite at 58° West Longitude.