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5th Space Operations Squadron
The 5th Expeditionary Space Operations Squadron is an expeditionary satellite operations unit of the United States Air Force, assigned to the Space Operations Command, Air Force Space Command for activation or inactivation as required. History The 5th Expeditionary Space Operations Squadron (ESOPS), originally part of the Air Force Satellite Control Facility, was provisionally established as Operating Location-A of the 750th Space Group on 1 October 1992. It was officially activated on 22 November 1993 under the 50th Operations Group. The formation followed the division of the Air Force Satellite Control Facility into the 2nd Space Test Group and the Consolidated Space Test Center (CSTC) on 1 October 1987, coinciding with the Air Force Space Command's acquisition of Onizuka Air Force Station, Onizuka Air Force Base (later Onizuka Air Station). In the year it was established, the 5th ESOPS assumed the responsibilities of the 2nd Satellite Tracking Group Operations Division and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Force Space Command
The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing for liquid water to exist on the Earth's surface, absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation). By mole fraction (i.e., by number of molecules), dry air contains 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere. Air composition, temperature, and atmospheric pressure vary with altitude. Within the atmosphere, air suitable for use in photosynthesis by terrestrial plants and breathing of terrestrial animals is found only in E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tracking And Data Relay Satellite
A tracking and data relay satellite (TDRS) is a type of communications satellite that forms part of the Tracking and Data Relay Satellite System (TDRSS) used by NASA and other United States government agencies for communications to and from independent "User Platforms" such as satellites, balloons, aircraft, the International Space Station, and remote bases like the Amundsen-Scott South Pole Station. This system was designed to replace an existing worldwide network of ground stations that had supported all of NASA's crewed flight missions and uncrewed satellites in low-Earth orbits. The primary system design goal was to increase the amount of time that these spacecraft were in communication with the ground and improve the amount of data that could be transferred. These TDRSS satellites are all designed and built to be launched to and function in geosynchronous orbit, above the surface of the Earth. The first seven TDRSS satellites were built by the TRW corporation. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TDRSS
The U.S. Tracking and Data Relay Satellite System (TDRSS) is a network of American communications satellites (each called a tracking and data relay satellite, TDRS) and ground stations used by NASA for space communications. The system was designed to replace an existing network of ground stations that had supported all of NASA's crewed flight missions. The prime design goal was to increase the time spacecraft were in communication with the ground and improve the amount of data that could be transferred. Many Tracking and Data Relay Satellites were launched in the 1980s and 1990s with the Space Shuttle and made use of the Inertial Upper Stage, a two-stage solid rocket booster developed for the shuttle. Other TDRS were launched by Atlas IIa and Atlas V rockets. The most recent generation of satellites provides ground reception rates of 6 Mbit/s in the S-band and 800 Mbit/s in the Ku- and Ka-bands. This is mainly used by the United States military. Origins To satisfy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inertial Upper Stage
The Inertial Upper Stage (IUS), originally designated the Interim Upper Stage, was a two-stage, solid-fueled space launch system developed by Boeing for the United States Air Force beginning in 1976 for raising payloads from low Earth orbit to higher orbits or interplanetary trajectories following launch aboard a Titan 34D or Titan IV rocket as its upper stage, or from the payload bay of the Space Shuttle as a space tug. Development During the development of the Space Shuttle, NASA, with support from the Air Force, wanted an upper stage that could be used on the Shuttle to deliver payloads from low earth orbit to higher energy orbits such as GTO or GEO or to escape velocity for planetary probes. The candidates were the Centaur, propelled by liquid hydrogen and liquid oxygen, the Transtage, propelled by hypergolic storable propellants Aerozine-50 and , and the Interim Upper Stage, using solid propellant. The DOD reported that Transtage could support all defense needs, but could ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skynet (satellites)
Skynet is a family of military communications satellites, now operated by Airbus Defence and Space on behalf of the United Kingdom's Ministry of Defence (MoD). They provide strategic and tactical communication services to the branches of the British Armed Forces, the British intelligence agencies, some UK government departments and agencies, and to allied governments. Since 2015 when Skynet coverage was extended eastward, and in conjunction with an Anik G1 satellite module over America, Skynet offers near global coverage. The Skynet contract allow Airbus Defence and Space to sell surplus bandwidth, through the Skynet partner programme, to NATO and allied governments, including the Five Eyes intelligence alliance members (Australia, Canada, New Zealand, the United Kingdom and the United States). As of 2020, seven Skynet satellites are operating, plus Anik G1. The Skynet 1 to 4 series were developed and operated by the Signals Research and Development Establishment, Royal Sign ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NATO
The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two North American. Established in the aftermath of World War II, the organization implemented the North Atlantic Treaty, signed in Washington, D.C., on 4 April 1949. NATO is a collective security system: its independent member states agree to defend each other against attacks by third parties. During the Cold War, NATO operated as a check on the perceived threat posed by the Soviet Union. The alliance remained in place after the dissolution of the Soviet Union and has been involved in military operations in the Balkans, the Middle East, South Asia, and Africa. The organization's motto is ''animus in consulendo liber'' (Latin for "a mind unfettered in deliberation"). NATO's main headquarters are located in Brussels, Belgium, while NATO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defense Satellite Communications System
The Defense Satellite Communications System (DSCS) is a United States Space Force satellite constellation that provides the United States with military communications to support globally distributed military users. Beginning in 2007, DSCS is being replaced by the Wideband Global SATCOM system. A total of 14 DSCS-III satellites were launched between the early 1980s and 2003. Two satellites were launched aboard the Space Shuttle ''Atlantis'' in 1985 during the STS-51-J flight. As of 14 September 2021, six DSCS-III satellites were still operational. DSCS operations are currently run by the 4th Space Operations Squadron out of Schriever Space Force Base. Background DSCS went through three major phases — IDCSP (Interim Defense Communication Satellite Program), DSCS-II, and DSCS-III. Since the first launch, DSCS has been the "workhorse" of military satellite communications. All DSCS III satellites have exceeded their 10-year design life. The National Science Foundation use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fairchild Air Force Base
Fairchild Air Force Base (AFB) is a United States Air Force base, located in the northwest United States in eastern Washington, approximately southwest of Spokane. The host unit at Fairchild is the 92nd Air Refueling Wing (92 ARW) assigned to the Air Mobility Command's Eighteenth Air Force. The 92 ARW is responsible for providing air refueling, as well as passenger and cargo airlift and aero-medical evacuation missions supporting U.S. and coalition conventional operations as well as U.S. Strategic Command strategic deterrence missions. Fairchild AFB was established in 1942 as the Spokane Army Air Depot. and is named in honor of General Muir S. Fairchild a World War I aviator from the state, he was the Vice Chief of Staff of the Air Force at the time of his death. During the Cold War, Fairchild was a Strategic Air Command (SAC) base for 45 years (1947–1992), with bombers and tankers, as well as missiles for a brief period (1960–1965). , the 92d Air Refueling Wing wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
50th Operations Group
The 50th Operations Group was a subordinate unit of the 50th Space Wing, and assigned to Air Force Space Command from 1991-2019. The group, redesignated as Space Delta 8 on 24 Jul 2020 is stationed at Schriever Space Force Base, previously Schriever Air Force Base, Colorado. The group was activated in January 1941 as the 50th Pursuit Group and began training under Third Air Force. In May 1942 it was reassigned to the Army Air Forces School of Applied Tactics, where it was a training and test unit as the 50th Fighter Group (Special). The group moved to the European Theater of Operations in the Spring 1944 expansion of Ninth Air Force in England in preparation for Operation Overlord. It few its first combat mission on 1 May 1944. The group moved to France in late June and continued in combat until V-E Day. During combat operations over Western Europe, the unit received two Distinguished Unit Citations. It returned to the United States, where it was inactivated on 7 Novembe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1000th Satellite Operations Group
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Base Realignment And Closure
Base Realignment and Closure (BRAC) is a process by a United States federal government commission to increase United States Department of Defense efficiency by coordinating the realignment and closure of military installations following the end of the Cold War. More than 350 installations have been closed in five BRAC rounds: 1988, 1991, 1993, 1995, and 2005. These five BRAC rounds constitute a combined savings of $12 billion annually. Background The Federal Property and Administrative Services Act of 1949, passed after the 1947 reorganization of the National Military Establishment, reduced the number of US military bases, forts, posts, and stations. The subsequent 1950s buildup for the Cold War (e.g., during the Korean War) resulted in large numbers of new installations, such as the of Permanent System radar stations and Semi Automatic Ground Environment (SAGE) control centers. By 1959, plans for even larger numbers of Cold War installations were canceled (e.g., DoD's June 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Force Outstanding Unit Award
The Air and Space Outstanding Unit Award (ASOUA) is one of the Awards and decorations of the United States Department of the Air Force, unit awards of the United States Air Force and United States Space Force. It was established in 1954 as the Air Force Outstanding Unit Award and was the first independent Air Force decoration created (to this point, Air Force personnel were routinely awarded Awards and decorations of the United States Army, Army decorations). The Air Force Longevity Service Award would follow in 1957 with most of the standard Air Force awards (including the Air Force Good Conduct Medal (United States), Good Conduct Medal) established in the early to mid 1960s. The Outstanding Unit Award is awarded to any unit of the U.S. Air Force (including the Air Force Reserve and the Air National Guard) which performs exceptionally meritorious service, accomplishes specific acts of outstanding achievement, excels in combat operations against an armed enemy of the United Stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
