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National Defense Space Architecture
The Space Development Agency (SDA) began as a directorate of the United States Department of Defense's office of the under secretary of defense for research and engineering ( OUSD (R&E)) which supports space development in the interests of U.S. national security. The SDA was conceived by Mike Griffin and established in 2019 after his appointment to USD (R&E) early in the Trump Administration. A top priority is to implement the National Defense Space Architecture ( NDSA), using spiral models for its development method. While initial leadership sought more aggressive capabilities including space-based interceptors similar to the Strategic Defense Initiative, the Biden Administration has since refocused on sensing and arms control. The SDA transferred to the United States Space Force October 1, 2022. By design,USD(R&E) (20 Nov 2020) DOD INSTRUCTION 5000.88: ENGINEERING OF DEFENSE SYSTEMS/ref> the functions for acquisition and sustainment (A&S) are the responsibility of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Pentagon
The Pentagon is the headquarters building of the United States Department of Defense. It was constructed on an accelerated schedule during World War II. As a symbol of the U.S. military, the phrase ''The Pentagon'' is often used as a metonym for the Department of Defense and its leadership. Located in Arlington County, Virginia, across the Potomac River from Washington, D.C., the building was designed by American architect George Bergstrom and built by contractor John McShain. Ground was broken on 11 September 1941, and the building was dedicated on 15 January 1943. General Brehon Somervell provided the major impetus to gain Congressional approval for the project; Colonel Leslie Groves was responsible for overseeing the project for the U.S. Army Corps of Engineers, which supervised it. The Pentagon is the world's largest office building, with about of floor space, of which are used as offices. Some 23,000 military and civilian employees, and another 3,000 non-defense sup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Under Secretary Of Defense For Acquisition And Sustainment
The Under Secretary of Defense for Acquisition and Sustainment, or USD(A&S), is the Principal Staff Assistant (PSA) and advisor to the Secretary of Defense for all matters relating to acquisition and sustainment in the Department of Defense. This includes the DoD Acquisition System; system design and development; production; logistics and distribution; installation maintenance, management, and resilience; military construction; procurement of goods and services; material readiness; maintenance; environment and energy resilience (including renewable energy); utilities; business management modernization; International Armaments Cooperation, Cooperative Acquisition and International Agreements, Promoting exportability of military components to allies and partners; nuclear, chemical and biological defense programs; and nuclear command, control, and communications. Ellen Lord became the first Under Secretary of Defense for Acquisition and Sustainment on 1 February 2018, after servin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Defense Space Architecture (NDSA) Transport Layer
The Space Development Agency (SDA) began as a directorate of the United States Department of Defense's office of the under secretary of defense for research and engineering ( OUSD (R&E)) which supports space development in the interests of U.S. national security. The SDA was conceived by Mike Griffin and established in 2019 after his appointment to USD (R&E) early in the Trump Administration. A top priority is to implement the National Defense Space Architecture ( NDSA), using spiral models for its development method. While initial leadership sought more aggressive capabilities including space-based interceptors similar to the Strategic Defense Initiative, the Biden Administration has since refocused on sensing and arms control. The SDA transferred to the United States Space Force October 1, 2022. By design,USD(R&E) (20 Nov 2020) DOD INSTRUCTION 5000.88: ENGINEERING OF DEFENSE SYSTEMS/ref> the functions for acquisition and sustainment (A&S) are the responsibility of ano ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Hyten
John Earl Hyten (born July 18, 1959) is a retired United States Air Force general who served as the 11th vice chairman of the Joint Chiefs of Staff from 2019 to 2021. A career space operations and acquisitions officer, he commanded the United States Strategic Command from 2016 to 2019 and the Air Force Space Command from 2014 to 2016. Hyten was born in Torrance, California. After graduating from Harvard University, he received his commission into the U.S. Air Force in 1981. He started his military career in engineering jobs, then went into space and missile operations. He commanded the 6th Space Operations Squadron, 595th Space Group, and 50th Space Wing. After retiring, Hyten joined Blue Origin as a strategic advisor. Early life and education John Earl Hyten was born on July 18, 1959, in Torrance, California as the eldest of Sherwyn and Barbara Hyten's three children. In 1965, his family moved to Huntsville, Alabama, where his father worked on the Saturn V rocket. He grew up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GPS Block III
GPS Block III (previously Block IIIA) consists of the first ten GPS satellite blocks, GPS III satellites, which will be used to keep the Navstar Global Positioning System operational. Lockheed Martin designed, developed and manufactured the GPS III Non-Flight Satellite Testbed (GNST) and all ten Block III satellites. The first satellite in the series was launched in December 2018. The tenth and final GPS Block III launch is projected in 2023. History The United States' Global Positioning System (GPS) reached Full Operational Capability on 17 July 1995, completing its original design goals. Advances in technology and new demands on the existing system led to the effort to modernize the GPS system. In 2000, the U.S. Congress authorized the effort, referred to as GPS III. The project involves new ground stations and new satellites, with additional navigation signals for both civilian and military users, and aims to improve the accuracy and availability for all users. Raytheo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Positioning System
The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite systems (GNSS) that provides geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. It does not require the user to transmit any data, and operates independently of any telephonic or Internet reception, though these technologies can enhance the usefulness of the GPS positioning information. It provides critical positioning capabilities to military, civil, and commercial users around the world. Although the United States government created, controls and maintains the GPS system, it is freely accessible to anyone with a GPS receiver. The GPS project was started by the U.S. Department of Defense in 1973. The first prototype spacecraft was lau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocketdyne
Rocketdyne was an American rocket engine design and production company headquartered in Canoga Park, California, Canoga Park, in the western San Fernando Valley of suburban Los Angeles, California, Los Angeles, in southern California. The Rocketdyne Division was founded by North American Aviation (NAA) in 1955, and was later part of Rockwell International (1967–1996) and Boeing (1996–2005). In 2005, the Rocketdyne Division was sold to United Technologies Corporation, becoming Pratt & Whitney Rocketdyne as part of Pratt & Whitney. In 2013, Pratt & Whitney Rocketdyne was sold to GenCorp, which merged it with Aerojet to form Aerojet Rocketdyne.Marjorie Censer(18 Dec 2022) L3Harris moves to acquire Aerojet Rocketdynefor $4.7 billion, after Lockheed Martin ended its attempt for Rocketdyne in Feb 2022 History After World War II, North American Aviation (NAA) was contracted by the Defense Department to study the German V-2, V-2 missile and adapt its engine to Society of Automotiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joint All-Domain Command And Control
Joint All-Domain Command and Control or JADC2 is the concept that the Department of Defense has developed to connect sensors from all branches of the armed forces into a § unified network powered by artificial intelligence. Sydney J. Freedberg Jr(29 August 2019) The Fraying Edge: Limits Of The Army's Global Network/ref> These branches include the Air Force, Army, Marine Corps, and Navy, as well as Space Force. Each military branch has its initiative that contributes to JADC2; the Army has ''Project Convergence'', the Navy has ''Project Overmatch'', and the Air Force has the ''Advanced Battle Management System'', also known as ''ABMS''. The Space Force has the Space Development Agency's ''National Defense Space Architecture'' ( NDSA).(11 Jan 2023) To ensure JADC2, and to win in future conflicts, look to the transport layer in spaceGround Moving Target Identification (GMTI) and Air Moving Target Identification (AMTI) Experimentation The DoD has held at least two critical JADC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frank Calvelli
Frank Calvelli is an American intelligence official who is the assistant secretary of the Air Force for space acquisition and integration (SAF/SQ). He previously served as the principal deputy director of the National Reconnaissance Office from 2012 to 2020. In 2021, he joined Booz Allen Hamilton as senior vice president. Education Calvelli earned a Bachelor of Science degree from the State University of New York at Potsdam and a Master of Business Administration the Loyola University Maryland. Career Calvelli served for over 30 years in the Central Intelligence Agency, where he was assigned to the National Reconnaissance Office. From July 6, 2012 to October 5, 2020, he served as deputy director of the NRO. He joined Booz Allen Hamilton's national security program as senior vice president in 2021. In December 2021, Joe Biden nominated Calvelli to serve as the first assistant secretary of the Air Force for space acquisition and integration Assistant may refer to: * Assist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low Earth Orbit
A low Earth orbit (LEO) is an orbit around Earth with a period of 128 minutes or less (making at least 11.25 orbits per day) and an eccentricity less than 0.25. Most of the artificial objects in outer space are in LEO, with an altitude never more than about one-third of the radius of Earth. The term ''LEO region'' is also used for the area of space below an altitude of (about one-third of Earth's radius). Objects in orbits that pass through this zone, even if they have an apogee further out or are sub-orbital, are carefully tracked since they present a collision risk to the many LEO satellites. All crewed space stations to date have been within LEO. From 1968 to 1972, the Apollo program's lunar missions sent humans beyond LEO. Since the end of the Apollo program, no human spaceflights have been beyond LEO. Defining characteristics A wide variety of sources define LEO in terms of altitude. The altitude of an object in an elliptic orbit can vary significantly along the orbit. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James H
James is a common English language surname and given name: *James (name), the typically masculine first name James * James (surname), various people with the last name James James or James City may also refer to: People * King James (other), various kings named James * Saint James (other) * James (musician) * James, brother of Jesus Places Canada * James Bay, a large body of water * James, Ontario United Kingdom * James College, a college of the University of York United States * James, Georgia, an unincorporated community * James, Iowa, an unincorporated community * James City, North Carolina * James City County, Virginia ** James City (Virginia Company) ** James City Shire * James City, Pennsylvania * St. James City, Florida Arts, entertainment, and media * ''James'' (2005 film), a Bollywood film * ''James'' (2008 film), an Irish short film * ''James'' (2022 film), an Indian Kannada-language film * James the Red Engine, a character in ''Thomas the Tank En ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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