USA-275
From Wikipedia, the free encyclopedia
WGS SV-9
Wideband Global SATCOM-9
 Artist's impression of a WGS-9 satellite in orbit | |
| Names | WGS-9 WGS SV-9 Wideband Global SATCOM-9 |
|---|---|
| Mission type | Military communications |
| Operator | United States Air Force / United States Space Force |
| COSPAR ID | 2017-016A |
| SATCAT no. | 42075 |
| Website | https://www.spaceforce.mil/ |
| Mission duration | 14 years (planned) 8 years, 7 months and 17 days (in progress) |
| Spacecraft properties | |
| Spacecraft | WGS-9 |
| Spacecraft type | WGS Block II Follow-On |
| Bus | BSS-702HP |
| Manufacturer | Boeing Satellite Systems |
| Launch mass | 5,987 kg (13,199 lb) |
| Dry mass | 3,000 kg (6,600 lb) |
| Power | 11 kW |
| Start of mission | |
| Launch date | 19 March 2017, 00:18:00 UTC[1] |
| Rocket | Delta IV M+ (5,4) (s/n D377) |
| Launch site | Cape Canaveral, SLC-37B |
| Contractor | United Launch Alliance |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Geostationary orbit |
| Transponders | |
| Band | X-band and Ka-band (enhanced) |
| |
USA-275, or Wideband Global SATCOM 9 (WGS-9) is a United States military communications satellite operated by the United States Air Force as part of the Wideband Global SATCOM programme. Launched in 2017, it was the ninth WGS satellite to reach orbit. It is stationed at a longitude of 135° West, in geostationary orbit. WGS-9 was procured by the United States Air Force.[2]
The WGS system is a constellation of highly capable military communications satellites that leverage cost-effective methods and technological advances in the communications satellite industry. The WGS system is composed of three principal segments: Space Segment (satellites), Control Segment (operators) and Terminal Segment (users). Each WGS satellite provides service in multiple frequency bands, with the unprecedented ability to cross-band between the two frequencies on board the satellite. WGS augments other satellites.[3]
In early 2001, a satellite communications industry team led by Boeing Satellite Systems was selected to develop the Wideband Gapfiller Satellite (WGS) system as successors to the Defense Satellite Communications System (DSCS) series of communications satellites. This satellite communications system is intended to support the warfighter with newer and far greater capabilities than provided by current systems. In March 2007, the acronym WGS was changed to Wideband Global SATCOM.[2]
Just one WGS satellite provides more SATCOM capacity than the entire legacy Defense Satellite Communications System (DSCS) constellation.[3]
As the backbone of the U.S. military's global satellite communications, Wideband Global SATCOM (WGS) satellite system provides flexible, high-capacity communications for the Nation's warfighters through procurement and operation of the satellite constellation and the associated control systems. WGS provides worldwide flexible, high data rate and long haul communications for the Department of Defense (DoD), governmental organizations and international partners.[3]
