The system will provide capacity ranging from 2.1Gbps to more than 3.6Gbps to tactical users, depending on the mix of ground terminals, data rates and modulation schemes employed. The breakage of uplink bandwidth into approximately 1,900 independently routable 2.6MHz subchannels by a digital channeliser has increased the connectivity between uplink and downlink coverage areas. Please make a donation to support Gunter's Space Page. The WGS constellation provides fast broadband communications for the US military and allies. 3 hours 6 hours 12 hours 24 hours. One major upgrade provided by WGS is X-Ka-Band inter-connectivity delivered by a digital channelizer which divides the uplink bandwidth into independently routable 2.6MHz subchannels which can be converted from Ka-to-X-Band and vice versa. WGS provides worldwide, flexible, high-capacity communications for US Government Agencies, Department of Defense (DOD), multiple International Partners and the North Atlantic Treaty Organization (NATO). The Gapfiller satellites serve as the means to continue and increase the capability of wideband services until the introduction of the Objective or Advanced Wideband System. Powered by EPSG database 10.076 Canada has also signed on to become a partner.[5]. The U.S. Air Force Space and Missile Systems Center is harnessing advanced satellite communication technology from the private sector through the Wideband Global SATCOM (WGS) 11+ platform and its Pathfinder effort.The WGS-11+ effort is centered on capabilities that will provide more coverage beams, beam-formed bandwidth and frequency re-use than existing legacy systems, according to a release . The next three, WGS satellites 4, 5, and 6, make up Block II. A statement said WGS-11+ will have more communications flexibility than the entire existing WGS constellationreferring to the new satellites numerous coverage beamswith twice the mission capability in contested environments.. Both the X- and Ka-bands are interconnected through a digital channeliser and provide better connectivity in WGS. Each WGS satellite is digitally channelized and transponded. Satellite coverage spans great distances A satellite can directly connect points separated by 1000's of miles A satellite can broadcast to 1000's of . WGS - Transformational Wideband Communication Capabilities for the Warfighter, US Air Force (USAF) US Space Force (USSF), Cross-band (X-band, Global Broadcast, 2-way Ka-band) payload. A description published by the Air Force calls the constellation "the backbone of the U.S. military's satellite communications" adding the satellites themselves are its "highest capacity communications satellites." launches following at approximately six-month intervals. The result has been today's limited number of large satellites of ever-increasing complexity. The Air Force Space Command estimates each satellite will cost approximately US$300 million. Boeings team agreed to supply the satellites, spacecraft and payload control equipment under the deal, as well as logistics, training and sustained engineering support. WGS 3-WGS F3-12W-KA band footprint-beam-coverage : WGS 1+2+3 - Global beams, geographical . Other improvements involve uniquely shaping the terrestrial footprint of the beams for smaller footprints that are less susceptible to jamming. On 3 October 2007, Australia's Department of Defence announced that the country would fund a sixth satellite in the constellation. The new channelizer makes use of the latest Application Specific Integrated Circuit technology to be more efficient in converting uplinked data to digital signals which can then be moved internal to the satellites ahead of reconversion and downlink. Ion thrusters generate thrust by accelerating ions through the use of an electric field and ejecting these ions at extremely high velocity creating thrust force propelling the spacecraft forward. A coverage footprint of 200-400 miles . Together these assets will provide wideband services during the transition period between today's systems and the advent of the Objective X/Ka wideband system or Advanced Wideband System (AWS), which has merged with Transformational Communications System (TCS), in 2008-2009. The new satellite was procured under the WGS Block II Follow-On contract which included options for production of up to six WGS satellites. INPE Image Catalog is a go-to source of free satellite imagery maps of South and Central America, and Africa only. The Wideband Global SATCOM-8 (WGS-8) Satellite was successfully launched December 7, 2016, aboard the Delta IV launch vehicle from Cape Canaveral Air Force Station's SLC-37B pad. Calculators & Maps Tools to help you ensure that your satellite dishes have a clear line of sight to orbiting satellites, and how strong a signal you can expect in your region. The Defense Department started placing WGS satellites in orbit in 2007. WGS was developed to replace the legacy 14-satellite US Defense Satellite Communications System (DSCS) constellation, launched from 1982 to 2003. Boeing's ground products provide secure, low risk, resilient, modern, cloud-based systems developed around containerized software and open standards. Launches It is positioned over the Eastern Atlantic at an orbital slot of 12> West longitude to operate in the Atlantic region. The satellite operators come under the control segment. We use own cookies to provide you the best experience on our website as well as third party cookies that may track your use of Satbeams and show you relevant advertising. Band; ABS-6: 159.0E: C/Ku: Express-AM5: 140.0E: C/Ku: Express-AT2: 139.9E: Ku . The number of spacecraft shown below has been reduced to, Location: 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. 0.13W WGS 11, which is slated for delivery from prime contractor Boeing in 2023, will provide more coverage beams and more beam formed bandwidth . WGS combines unique commercial spacecraft capabilities that Boeing has developed, including phased array antennas and digital signal processing technology, into a powerful, flexible architecture. The Wideband Gapfiller Satellite (WGS) will provide unprecedented X-band user coverage flexibility with two digitally controlled multibeam phased array antennas. Operation and usage of the WGS System is divided into three segments the Space Segment with the Satellites, the Control Segment which operates the satellites, and the Terminal Segment which corresponds to user terminals on the ground. Background These include 8 steerable X-Band beams provided by separate transmit and receive phased arrays as well as 10 steerable Ka-Band beams that are formed by steerable, diplexed gimbaled dish antennas. The Army relies on Ka and Ku band satellite communications (SATCOM) for beyond line of sight (BLOS) communications between Division, Brigade, Battalion, and Company echelons. The Block-2 WGS satellites can deliver a data throughput of 6Gbps and the modified Block II satellites achieve 11 Gbps. The upgraded hardware also will be installed on the planned 10th WGS satellite. WGS provides worldwide, flexible, high-capacity communications for US Government Agencies, Department of Defense (DOD), multiple International Partners and the North Atlantic Treaty Organization (NATO). The Boeing 702 uses advanced technologies in propulsion, power generation and thermal control, and can connect X- and Ka-band users within the coverage field of view via reconfigurable antennas and a digital channeliser. Operation and usage of the system is broken into 3 segments. Phase III is an Objective capability planned as part of the Advanced Wideband System (AWS) I FY 2009-Plus. An artists illustration of the Wideband Global Satellite Communications satellite WGS-11+. The first satellite was scheduled to launch in early 2004, with the second one to follow in 2005, both aboard a U.S. Air Force Evolved Expendable Launch Vehicle. For more information including contact details, CONNA - North America AMSAT - North & South America OCSAT - Asia Pacific EMSAT - Europe and Africa IOSAT - India, CIS, Middle-East WGS10 was ordered in July 2012. Fast Smooth. SatBeams - Satellite Coverage Maps and Charts Homepage. @media only screen and (min-device-width : 320px) and (max-device-width : 480px) { WGS-10 is the latest part of a constellation of highly-capable communications satellites that serve the armed forces of the United States and its allies. These three projects provide NATO with access to the military segments of four national satellite communications systems: SYRACUSE from France, SICRAL from Italy, Skynet from the United Kingdom and WGS from the United States. The Jabiru-1 satellite will deliver high-powered Ka-band coverage over the Middle East, Asia and Africa. As of the latest revision, the WGS 84 datum surface is a pole-flattened ( oblate) spheroid, with major ( transverse) radius a = 6,378,137 m at the equator, and minor ( conjugate) radius b = 6,356,752.314 245 m at the poles (a flattening of 21.384 685 755 km, or 1/298.257 223 563 0.335% in relative terms). Satellite Coverage Maps . DoD wideband satellite communication services are currently provided by a combination of the existing Defense Satellite Communications System (DSCS) and Global Broadcast Service (GBS) satellites. Coverage may vary. Like the DSCS constellation that WGS will replace, spacecraft bus is commanded by the 4th Space Operations Squadron of Schriever Space Force Base, Colorado. The models are differentiated depending on the specific payload size and weight ranges. SpaceX is developing a low latency, broadband internet system to meet the needs of consumers across the globe. Tacticalforces rely on WGS to provide high-capacity connectivity betweenindividual users and the Defense Information Systems Network (DISN). Air & Space Forces Magazine is the official publication of the Air & Space Forces Association, 1501 Langston Boulevard, Arlington, Va., 22209-1198. Boeing illustration. SSC Space US has supported launch and early orbit checkout operations for all eight WGS satellites and the Boeing/SSC partnership will continue in the future with the WGS-9 and WGS-10 missions. Effectively, each WGS satellite can supply more than ten times the capacity of a DSCS- 3 satellite. Sens. U.S. officials told Air & Space Forces Magazine the exercise, dubbed Juniper Oak, was notable in both size and scope. Night mode. Each WGS satellite provides service in both the X and Ka frequency bands, with the unprecedented ability to cross-band between the two frequencies onboard the satellite. WGS-9, set for liftoff in March 2017, represents the international contribution to the program with funding for the satellite provided by Canada, Denmark, the Netherlands, Luxembourg and New Zealand in exchange for access to bandwidth from the entire global constellation. He explained that satellites . WGS systems feature digitally channelised transponder satellites that provide communication capacity, connectivity and flexibility to the US military forces. Dominic Satellite Animation Style. The block II satellites meet the bandwidth requirements of war-fighters, thereby providing information exchange, enabling execution of tactical command and control, communications and computers, intelligence, surveillance, reconnaissance (C4ISR), battle management and combat support information. #ga-ad {display: none;} Two of the four thrusters are used as primary units at any given time and stationkeeping in Geostationary Orbit will require four burns for a total of about 30 minutes per day to maintain the satellite within a 0.01 degree stationkeeping zone which allows many satellites to be collocated in a single orbital slot. The WGS-6 was delivered to the US Air Force in December 2013. Under Block II, Boeing added a radio frequency bypass capability designed to support airborne intelligence, surveillance and reconnaissance platforms requiring ultra-high bandwidth and data rates demanded by unmanned aerial vehicles. The Program Office plan for WGS satellite launch is to integrate them on both Delta and Atlas Evolved Expendable Launch Vehicles (EELVs).
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