[12], WGS-5 (USA-243) was successfully launched by a Delta IV launch vehicle flying in the Medium+ (5,4) configuration, with lift-off taking place from SLC-37B in Florida on 25 May 2013, at 00:27 UTC. Thus, each WGS can supply more than 10times the capacity of a DSCS-3 Service Life Enhancement Program (SLEP) satellite. The primary contractor for the satellites themselves is Boeing Satellite Development Center, which is building them around the Boeing 702HP satellite bus. The WGS-2 satellite, which was designated as USA-204, entered service in August 2009. The satellite was carried by an Atlas V 421 launch vehicle lifting off from SLC-41 at Cape Canaveral Air Force Station (CCAFS). The Worldwide Reference System (WRS) is a global notation system for Landsat data. WGS augments other satellites. The WGS payload. 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. BG Patrick W. Burden, Program Executive Officer Enterprise Information Systems (PEO EIS); COL Charles Stein, Project Manager, Defense . WGS systems comprise three main segments, which are space, terminal and control. World Geodetic System (WGS84) By: GISGeography Last Updated: May 28, 2022 WGS84 is standard for GPS The Global Positioning System uses the World Geodetic System (WGS84) as its reference coordinate system. 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 . Payload commanding and network control are managed by the army's 53rd Signal Battalion at Peterson AFB, Colorado, with subordinate elements at seven locations. WGS is a high-capacity satellite communications system designed to support the warfighter with newer and far greater capabilities than those provided by current systems, yet it is compatible with existing control systems and terminals. April 4, 2009 Coverage may vary. The first three WGS satellites are known as the Block I Group of Satellites that were part of the initial deal with Boeing signed in January 2002. #ga-ad {display: none;} The method of ion acceleration varies between the use of Coulomb and Lorentz force, but all designs take advantage of the charge/mass ratio of the ions to create very high velocities with very small potential differences which leads to a reduction of reaction mass that is required but also increases the amount of specific power compared to chemical propulsion. 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. Night mode. Find a coordinate system and get position on a map. After the launch, the military designated the WGS-1 as USA-195, which entered service in April 2008. Block II satellites feature a radio frequency bypass capability, which is designed to support airborne intelligence, surveillance and reconnaissance platforms that require ultra-high bandwidth, as well as the data rates demanded by unmanned aerial vehicles. At the time the program passed its preliminary design review in October 2020, contractor Boeing said delivery was on track for 2024. May 23, 2013 SpaceX is developing a low latency, broadband internet system to meet the needs of consumers across the globe. In return, the Australian Defence Ministry was given access to the data sent by the sixth satellite, which was developed to increase the bandwidth capacity of US forces. In its newest announcement, Space Systems Command said the program maintains an aggressive five-year schedule poised to deliver six months faster than legacy WGS satellites., The Defense Department started placing WGS satellites in orbit in 2007. The satellite operators in charge of commanding and monitoring the satellite's bus and payload systems as well as managing the network operating over the satellite are the control segment. WGS systems enhance the DoDs communication services provided by the defence satellite communications system (DSCS) satellites and the global broadcast system (GBS) operating at an ultra-high frequency (UHF). WGS 8, launched in 2016, marks the first in the Modified Block II satellites, hosting an upgraded digital channelizer which enables a 90% improvement in available bandwidth compared to previous WGS spacecraft. The constellation of WGS satellites increases the communications capabilities of the militaries of the United States, Canada, and Australia by providing additional bandwidth and communications capabilities for tactical command and control, communications, and computers; intelligence, surveillance, and reconnaissance (C4ISR); battle management; and combat support information. Boeing will build the WGS-11+ satellite at its facility in El Segundo, California, US. Boeing received a $338.7m contract modification to build WGS-10 in July 2012. The primary elements of a ground system are summarized in table 11-1. INPE Image Catalog is a go-to source of free satellite imagery maps of South and Central America, and Africa only. The WGS system iscomposed of three principalsegments: Space Segment(satellites), Control Segment(operators) and TerminalSegment (users). Beginning in 1998, GBS broadcasts via communication payloads on two UFO Ka-Band augmented satellites. Website designed by Coverage: The WGS design includes 19 independent coverage areas that can be used throughout the field of view of each satellite to serve warfighters between 65 North and South latitude. He explained that satellites . WGS combines a chemical propulsion system in use for the initial climb to Geostationary Orbit with an electrical propulsion system to fulfill stationkeeping tasks and extend the satellites lifetime beyond that of pure liquid-fueled spacecraft. The ground segment is a critical part of the end-to-end science data return, and it includes all the ground-based elements that are used to collect and disseminate information from the satellite to the user (figure 11.1). Capacity: WGS will offer 4.875GHz of instantaneous switchable bandwidth. A total of 19 independent coverage areas that can be used throughout the field of view of each satellite. In October 2020, Boeing and the US Space Force completed the first major design review for WGS-11+ communications satellite. The Global Broadcast Service space segment was implemented in three phases. March 18, 2017 MILSATCOM Joint Program Office is integrating the WGS and GBS space and ground segments. Giles T., Peake M. and Rice M., "Pilot Symbol Distributions for Satellite Burst Waveforms", Proceedings of the AIAA International Communications Satellite Systems Conference ICSSC-2005, Rome . These satellites operate in the programmed X- and Ka-band frequency spectrum. Background WGS 11, which is slated for delivery from prime contractor Boeing in 2023, will provide more coverage beams and more beam formed bandwidth . WGS was developed to replace the legacy 14-satellite US Defense Satellite Communications System (DSCS) constellation, launched from 1982 to 2003. Logicon provides communications software and SAIC extends engineering and communications architectures. Frequency of satellite TV, satellite TV channels, satellite TV set without a problem . WGS-2: 60.2E: Ka: Intelsat 33e: 60.0E: C/Ku: KazSat 3: 58.5E: Ku: NSS-12: 57.0E: C/Ku: Express-AT1: 56.0E: Ku: G-Sat 8/16: . Harris provides satellite communications ground terminals and terminal and payload interfaces, while ITT Industries supplies communications network and control systems. For more information including contact details, The digital channeliser also offers multicast and broadcast services to support the network protocol. The Wideband Gapfiller Satellites are the DoD's most capable and powerful communication satellite. (Current as of Feb 2023), An official website of the United States government, Hosted by Defense Media Activity - WEB.mil. Credit: Boeing. 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." The channelizer also supports multicast and broadcast services and provides flexible uplink monitoring for network control. WGS-7 and WGS-8 were launched in July 2015 and December 2016 respectively. In addition to providing improvements in X-band capability, WGS satellites also have a new Ka band capability that can be used for both two-way and Global Broadcast Service communications. First launch is projected for 2QFY05 with the second and third The WGS satellites were built on a Boeing 702 spacecraft with 13kW of power and flexible coverage areas. Limited protected services are provided under conditions of stress to selected users employing terrestrial modems capable of providing protection against jamming. The first launch was on Delta and the second on Atlas. WGS-11 is to be completed by Boeing by 2024 under a US$605 million contract.[20][21]. Step 2. Due to its reduced cost and incomparable advantages, WGS is likely to lead to changes in clinical diagnosis of rare and undiagnosed diseases. The US Air Force extended the order value to $1.09bn in September 2011 to facilitate the production, launch and on-orbit activation of the seventh satellite and to procure the long lead materials for an eighth WGS satellite. WGS-2, 60.0 East, WGS-2 satellite RU . Tacticalforces rely on WGS to provide high-capacity connectivity betweenindividual users and the Defense Information Systems Network (DISN). The push to create a new Space National Guard got a major boost last week as a bipartisan team of Senators offered new legislationeven as the Pentagon works to craft details on a competing plan. Dianne Feinstein (D-Calif.) and Marco Rubio (R-Fla.) introduced the Space National Guard Establishment Act on, The Space Force is opening up its competition for rocket launches with a dual-lane approach, according to a new draft request for proposals (RFP) from industrypotentially giving smaller companies more opportunities. 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Boeings team agreed to supply the satellites, spacecraft and payload control equipment under the deal, as well as logistics, training and sustained engineering support. 17-05-2019 17:24:28 ZULU. Users include the Australian Defence Force and U.S. Army ground mobile terminals, U.S. Navy ships and submarines, national command authorities for the nuclear forces, and various national security/allied national forces. It uses phased array, shaped beam, steerable spotbeams to provide coverage to support coalition forces anywhere on the globe. Average height of ISS WGS 6 (USA 244). One of the emerging applications is SATCOM-ON-The-Move which is now being extensively used on the military tactical vehicles for Blue Force Tracking and C3 missions. [14], On 23 August 2010, Boeing was awarded an Air Force contract worth US$182 million to begin work on the seventh WGS satellite. Launched in March 2017, WGS-9 was funded through an international partnership consisting of the US Air Force, Canada, Denmark, the Netherlands, Luxemberg and New Zealand. The Wideband Global SATCOM (WGS)-11+ program completed its first ever, all-virtual Preliminary Design Review (PDR) culminating in the successful conclusion of the review on July 1 after an eight-month long campaign. Both satellites were launched from Space Launch Complex 41 of Cape Canaveral Air Force Base (AFB), Florida, US. CONNA - North America AMSAT - North & South America OCSAT - Asia Pacific EMSAT - Europe and Africa IOSAT - India, CIS, Middle-East The WGS satellites will complement the DSCS III Service Life Enhancement Program (SLEP) and GBS payloads and will offset the eventual decline in DSCS III capability. Band; ABS-6: 159.0E: C/Ku: Express-AM5: 140.0E: C/Ku: Express-AT2: 139.9E: Ku . 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. The WGS satellites were built on a Boeing 702 spacecraft with 13kW of power and flexible coverage areas. The TT&C system is a technology primarily used to locate and control the satellite from deviating its orbit. 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. A coverage footprint of 200-400 miles diameter; coverage may require a constellation approach; July 23, 2015 The Defense Department started placing WGS satellites in orbit in 2007. The remaining coverage area is an X-Band Earth Coverage beam. Satellite information WGS 6 (USA 244) - WGS-6, WIDEBAND GLOBAL SATCOM 6 NORAD ID:39222.