| SES-3 | |
| Names List: | AMC ground spare OS-2 |
| Mission Type: | Communications |
| Operator: | SES Americom / SES |
| Cospar Id: | 2011-035A |
| Satcat: | 37748 |
| Website: | https://www.ses.com/ |
| Mission Duration: | 15 years (planned) (elapsed) |
| Spacecraft: | AMC ground spare |
| Spacecraft Type: | GEOStar-2 |
| Spacecraft Bus: | Star-2.4 |
| Manufacturer: | Orbital Sciences Corporation |
| Power: | 5 kW |
| Launch Date: | 15 July 2011, 23:16:10 UTC[1] |
| Launch Rocket: | Proton-M / Briz-M |
| Launch Site: | Baikonur, Site 200/39 |
| Launch Contractor: | Khrunichev State Research and Production Space Center |
| Entered Service: | September 2011 |
| Orbit Reference: | Geocentric orbit[2] |
| Orbit Regime: | Geostationary orbit |
| Orbit Longitude: | 103° West |
| Apsis: | gee |
| Trans Band: | 48 transponders: 24 C-band 24 Ku-band |
| Trans Bandwidth: | 36 MHz |
| Trans Coverage: | North America |
| Programme: | SES constellation |
| Previous Mission: | SES-2 |
| Next Mission: | SES-4 |
|SES-3 is a communications satellite operated by SES Americom (later SES World Skies. Now, SES).
SES-3 was built by Orbital Sciences Corporation (OSC), and is based on the Star-2.4 satellite bus. It is equipped with 24 C-band, and 24 Ku-band transponders, and at launch it had a mass of . It has a design life of fifteen years, however it was launched with enough fuel to operate for at least sixteen years, if its systems are still functional.[3]
It was launched on 15 July 2011 at 23:16:10 UTC on a Proton-M / Briz-M launch vehicle, the launch was arranged by International Launch Services (ILS), since Baikonour, Site 200/39 alongside the KazSat-2 satellite.
It is positioned at 103.0° West orbital location over North America, replacing AMC-1. Clients include E. W. Scripps Company, In Demand, Pay-per-view, Ion Television, Mood Media, NBC and QVC.[4]