SkyTerra-1
| SkyTerra-1 | |
|---|---|
| Start date | November 14, 2010, 17:29 UTC |
| Launcher | Proton-M / Bris-M |
| Launch site | Baikonur |
| COSPAR-ID : | 2010-061A |
| Takeoff mass | 5360 kg |
| Mass in orbit | 3200 kg |
| Dimensions | 22 × 29 × 41 m (unfolded in orbit) 9 × 3 × 4 m (at launch) |
| Manufacturer | Boeing Satellite Systems |
| model | BSS-702HP |
| Satellite bus | Boeing 702 |
| lifespan | 15 years (planned) |
| Stabilization | Three-axis |
| operator | Ligado Networks |
| Playback information | |
| Transponder | L-band SSPA 100W Ku-band TWTAs |
| Others | |
| Electrical power | 14 kW (BOL), 13 kW (EOL) |
| position | |
| First position | 101.3 ° West |
| drive | - one 100 lbf apogee thruster - four 5 lbf axial thrusters - four 2.2 lbf east / west thrusters |
| List of geostationary satellites | |
SkyTerra-1 is a commercial communications satellite of the American company Ligado Networks (formerly LightSquared ).
The contract to launch the satellite was announced by Boeing in January 2006. The satellite was on 14 November 2010 with a Proton-M - launcher of International Launch Services (ILS) from the Baikonur cosmodrome in a geostationary orbit brought.
The three-axis stabilized satellite is equipped with various L-band and Ku-band transponders and was supposed to supply North America with universal wireless telephony / internet services at 4G speed from position 101.3 ° West on the basis of Light Squared network technology. For this purpose, it is equipped with an antenna with a 22 m reflector (making it the largest antenna used on commercial satellites to date) in the L-band and a 1.5 m Ku-band antenna. The energy supply is provided by lithium ion batteries, and two solar cells with five boom with gallium arsenide - solar cells equipped segments that provide a primary output of 14 kW. The satellite was built on the basis of the BSS-702 GEM (Geomobile) satellite bus from Boeing Space and Intelligence Systems , El Segundo , California and has a planned service life of 15 years. After the satellite was not allowed to go into operation due to possible interference with the GPS system, the FCC also banned the commissioning of terrestrial transmitters for an alternative structure of the system in February 2012, although it had approved this in 2011.
The identical SkyTerra-2 satellite was to be launched a few months after the launch of SkyTerra-1 and stationed at 107.3 ° West.
Web links
- SkyTerra 1 on the Ligado Networks website
- SkyTerra on the website of the manufacturer Boeing (archived on October 12, 2012)
- ILS information on the launch of SkyTerra-1 (PDF, archived January 2, 2011); Summary on the ILS website
Individual evidence
- ↑ Boeing Announces Largest Satellite Contract in Nine Years with Mobile Satellite Ventures ( Memento from December 15, 2009 in the Internet Archive )
- ↑ Stephen Clark: US government revokes LightSquared license at Spaceflightnow.com, February 16, 2012, accessed February 17, 2012
- ^ Boeing Satellite Launch Schedule. Boeing February 10, 2013, archived from the original on June 11, 2014 ; accessed on April 2, 2013 .