SES-1
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| Names | AMC-1R AMC-4R OS-1 |
|---|---|
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| Mission type | Communications |
| Operator | SES Americom / SES |
| COSPAR ID | 2010-016A |
| SATCAT no. | 36516 |
| Website | https://www.ses.com/ |
| Mission duration | 15 years (planned) Template:Time interval (elapsed) |
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| Spacecraft properties | |
| Spacecraft | OS-1 |
| Spacecraft type | GEOStar-2 |
| Bus | Star-2.4 |
| Manufacturer | Orbital Sciences Corporation |
| Launch mass | Template:Cvt |
| Power | 5 kW |
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| 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 |
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| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Geostationary orbit |
| Longitude | 101° West |
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| Transponders | |
| Band | 48 transponders: 24 C-band 24 Ku-band |
| Bandwidth | 36 MHz |
| Coverage area | Canada, United States, Mexico, Caribbean, Central America |
| Template:Succession links Template:Succession links | |
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SES-1 is a geostationary communications satellite which is operated by SES World Skies, then by SES
History
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]
Spacecraft
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 Template:Cvt. 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]
Launch
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]
Mission
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]
See also
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References
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- ^ a b Page Module:Citation/CS1/styles.css has no content.Krebs, Gunter (11 December 2017). "SES 1, 2, 3". Gunter's Space Page. Retrieved 11 April 2021.
- ^ a b Page Module:Citation/CS1/styles.css has no content.McDowell, Jonathan (14 March 2021). "Launch Log". Jonathan's Space Report. Retrieved 11 April 2021.
- ^ a b c Page Module:Citation/CS1/styles.css has no content."SES-1 Mission Overview" (PDF). International Launch Services. Retrieved 21 May 2010.
- ^ Page Module:Citation/CS1/styles.css has no content.Bergin, Chris (24 April 2010). "ILS Proton-M successfully launches with Orbital-built SES-1 satellite". NASASpaceFlight.com. Retrieved 21 May 2010.
- ^ Page Module:Citation/CS1/styles.css has no content.de Selding, Peter B. (17 May 2010). "SES Details Plan To Avert Interference by Failed Intelsat Craft". SpaceNews. Retrieved 21 May 2010.
{{cite web}}: CS1 maint: deprecated archival service (link) - ^ Page Module:Citation/CS1/styles.css has no content.de Selding, Peter B. (3 June 2010). "Intelsat, SES Safely Negotiate Passage of Wayward Craft". SpaceNews. Retrieved 7 June 2010.
{{cite web}}: CS1 maint: deprecated archival service (link)
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