What orbit are WGS satellites in?
What orbit are WGS satellites in?
geosynchronous orbit
The on-orbit WGS constellation is comprised of six satellites in geosynchronous orbit. The first WGS satellite was launched in October 2007. There are three Block I satellites (launched in October 2007, April 2009, December 2009) and three WGS Block II satellites (launched in January 2012, May 2013, and August 2013).
How many WGS satellites are there?
six
A joint-service program funded by the U.S. Air Force and Army, WGS includes options for up to six BSS-702 satellites and their associated spacecraft and payload control equipment.
What frequency is WGS?
4.875GHz
WGS system provides 4.875GHz instantaneous switchable bandwidth. Around 500MHz of X-band and 1GHz Ka-band spectrum is allocated to WGS. Each satellite of WGS system provides 2.1Gbps to 3.6Gbps of data transmission rates, based on the mix of ground terminals, data rates and modulation schemes employed.
How big is a WGS satellite?
Once in their orbits at an altitude of 35,900 km (22,300 mi), each will weigh approximately 3,400 kg (7,500 lb). The program intends to use both the Delta IV and the Atlas V as launch vehicles. The Air Force Space Command estimates each satellite will cost approximately US$300 million.
How many Milstar satellites are there?
five
There are five operational Milstar satellites.
Is WGS84 an ellipsoid?
WGS84 is made up of a reference ellipsoid, a standard coordinate system, altitude data, and a geoid. The error of WGS84 is believed to be less than 2 centimeters to the center mass.
What does WGS mean?
WGS
| Acronym | Definition |
|---|---|
| WGS | World Geodetic System |
| WGS | White German Shepherd (dog breed) |
| WGS | When God Speaks |
| WGS | Wideband Global SATCOM |
Is milstar still operational?
Both Block I satellites (USA-99 and USA-115) are still operational as of August 2016, over 20 years since they were launched. The Milstar system consists of three segments; the space segment which consists of the six satellites, ground terminals and users, and stations to command and control the satellites.
How many DSP satellites are there?
23 satellites
All 23 satellites were built by the prime contractor Northrop Grumman Aerospace Systems, formerly TRW, in Redondo Beach, California.
How many satellites are there in WGS?
The WGS satellite communication system has six satellites divided into two blocks. Block I contains WGS-1, WGS-2 and WGS-3 satellites, while block II satellites include WGS-4, WGS-5 and WGS-6.
What happened to the WGS-4 and wgs6?
The WGS-4 was launched atop the same vehicle and at the same location in January 2012 and was accepted by the US Air Force in April 2012. It was followed by the launch of the WGS-5 in May 2013 and that of the WGS-6 in August 2013. The WGS-6 was delivered to the US Air Force in December 2013.
What is Block II and WGS-4?
Block II was inaugurated in 2012 with the launch of WGS-4 and features a number of upgrades including a radio frequency bypass capability for optimized services to airborne intelligence, surveillance and reconnaissance platforms (Unmanned Aerial Vehicles) requiring ultra-high bandwidth and data rates.
What is the bandwidth of the WGS system?
WGS system provides 4.875GHz instantaneous switchable bandwidth. Around 500MHz of X-band and 1GHz Ka-band spectrum is allocated to WGS. Each satellite of WGS system provides 2.1Gbps to 3.6Gbps of data transmission rates, based on the mix of ground terminals, data rates and modulation schemes employed.