| Names | AMC-1R AMC-4R OS-1 |
|---|---|
| Mission type | Communications |
| Operator | SES Americom / SES |
| COSPAR ID | 2010-016A  |
| SATCAT no. | 36516 |
| Website | https://www.ses.com/ |
| Mission duration | 15 years (planned) 14 years, 2 months, 18 days (elapsed) |
| Spacecraft properties | |
| Spacecraft | OS-1 |
| Spacecraft type | GEOStar-2 |
| Bus | Star-2.4 |
| Manufacturer | Orbital Sciences Corporation |
| Launch mass | 2,561 kg (5,646 lb) |
| Power | 5kW |
| Start of mission | |
| Launch date | 24 April 2010, 11:19:00 UTC |
| Rocket | Proton-M / Briz-M |
| Launch site | Baikonur, Site 200/39 |
| Contractor | Khrunichev State Research and Production Space Center |
| Entered service | June 2010 |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Geostationary orbit |
| Longitude | 101° West |
| Transponders | |
| Band | 48transponders: 24C-band 24Ku-band |
| Bandwidth | 36MHz |
| Coverage area | Canada, United States, Mexico, Caribbean, Central America |
|
SES-2 → | |
SES-1 is a geostationary communications satellite which is operated by SES World Skies, then by SES
It was originally ordered by SES Americom as a ground spare for AMC-5R, however in April 2008 a decision was made to launch it, and it was named AMC-1R. It was subsequently renamed AMC-4R, and finally SES-1 after SES Americom merged with SES New Skies to form SES World Skies.[1] It was the third SES World Skies satellite to be launched following the merger, but the first to carry the new SES designation.[2] SES-1 operates in geostationary orbit, and is intended to be located at a longitude of 101° West, where it will replace the AMC-2 and AMC-4 satellites. SES-1 enables high-definition television signals to very small aperture terminals in the United States.[3]
SES-1 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. At launch, the satellite had a mass of 2,561 kg (5,646 lb). SES-1 has a design life of fifteen years; however, the spacecraft was launched with enough fuel to operate for at least sixteen years, if all systems remain functional.[1]
The launch of SES-1 was conducted by International Launch Services (ILS), using a Proton-M launch vehicle with a Briz-M upper stage.[3] The launch occurred from Site 200/39 at the Baikonur Cosmodrome, at 11:19:00 UTC on 24 April 2010.[2] The launch successfully placed SES-1 into a subsynchronous orbit close to geostationary altitude.[3][4]
In May and June 2010, SES-1 was positioned close to 131° West to temporarily provide backup to the AMC-11 satellite in the event that AMC-11 could not continue broadcasting whilst it is moved out of the way of the failed Galaxy 15 satellite, which passed close to it at the end of May 2010.[5] In the end, services provided by AMC-11 were not interrupted.[6]
|
Satellites operated by SES
| |
|---|---|
| SES fleet |
|
| AMC fleet |
|
| NSS fleet |
|
| Astra fleet |
|
| Third parties |
|
|
| |
|---|---|
| January |
|
| February |
|
| March |
|
| April |
|
| May |
|
| June |
|
| July |
|
| August |
|
| September |
|
| October |
|
| November |
|
| December |
|
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ). | |
