NAVSTAR Global Positioning System

NAVSTAR Global Positioning System (GPS)

NAVSTAR Global Positioning System (GPS)
The global positioning system (GPS) is based on a constellation of twenty-four satellites at 12,625 miles (20,200 km) above the earth in six orbits. Each of these satellites completes one orbit of the earth in 11 h and 58 min (i.e., two orbits in 23 h and 56 min). The acronym NAVSTAR stands for navigation by satellites and ranging. Any vehicle using the system must be equipped with a suitable receiver. The system uses time and ranging for determining precise navigational information. GPS signals are available at all points on the earth and provide 24-h navigation services, which include extremely accurate three-dimensional location information (latitude, longitude, and altitude), velocity, and precise time; a worldwide common grid that is easily converted to any local grid; passive all-weather operations; continuous real-time information; support to an unlimited number of users and areas; and support to civilian users at a slightly less accurate level.
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GNSS typically refers to the collection of equipment that can receive signals from multiple navigation satellite systems including the United States NAVSTAR Global Positioning System (GPS), the Russian GLONASS system, the European Galileo system and the emerging Chinese Beidou system, as well as the various augmentation systems such as Wide Area Augmentation System and the European Geostationary Navigation Overlay System.
17 /PRNewswire/ -- Pratt & Whitney Rocketdyne today helped boost the eighth and final modernized NAVSTAR Global Positioning System (GPS) Block IIR military navigation satellite into orbit from Cape Canaveral Air Force Station in Florida.
Number of satellites in the US NAVSTAR Global Positioning System (GPS)
Arnold was the program executive officer for Air Force space, responsible for the following: Air Force Satellite Control Network; space lift ranges; launch programs; the Evolved Expendable Launch Vehicle Program; the Space-Based Infrared System Program; military satellite communication programs; Navstar Global Positioning System programs; intercontinental ballistic missile programs; Defense Meteorological Satellite Program; as well as other emerging transformational space programs, such as space-based radar.
VX-30 was responsible for the release of operational flight programs incorporating and integrating Navstar global positioning system navigation, APG-71 radar high-resolution mapping and the GBU-24 weapons system.
Among these, the Navstar Global Positioning System (GPS) has become renowned for its highly accurate navigation, position, and timing signals, for which military and civilian users worldwide have found an astounding variety of applications.
is being awarded a $17,000,000 modification to a firm-fixed-price contract to provide for seven Interim Retrofit Crosslink Transponder Data Units for the NAVSTAR Global Positioning System Block IIR satellite (vehicles 01 and 04 through 09).
For such pinpoint accuracy, farmers will rely on satellites that already are in orbit as part of the Air Force's Navstar Global Positioning System, made available to commercial users following the end of the Cold War.
GNSS typically refers to equipment that can receive signals from multiple navigation satellite systems including the United States NAVSTAR Global Positioning System (GPS), the Russian GLONAS system, the European Galileo system and the emerging Chinese Beidou system.
Categories: National Defense, Air Force Space-Based Space Surveillance System, Communication satellites, Computer terminals, Data collection, Defense capabilities, Defense cost control, Defense procurement, DOD Advanced Extremely High Frequency satellite, DOD Mobile User Objective System, DOD National Polar-orbiting Operational Environmental Satellite System, DOD Space Based Infrared System, DOD Space Tracking and Surveillance System, DOD Wideband Global SATCOM Satellite, Global positioning system, Military communication, Military cost control, Military forces, Missile warning systems, Monitoring, Navigation aids, NAVSTAR Global Positioning System, Procurement planning, Satellites, Strategic planning, Systems design, Systems evaluation, Weather
Other top positions General Armor held included; Director of Signals Intelligence Systems Acquisition and Operations Directorate, National Reconnaissance Office; Vice Commander, Warner Robins Air Logistics Center; System Program Director, and Program Director of the NAVSTAR Global Positioning System Joint Program Office, Space and Missile Systems Center.