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Area 51. Coordinates: 37°14′0″N 115°48′30″W. Homey Airport. Near Rachel, Lincoln County, Nevada in United States. A satellite image taken in 2022 captured by Sentinel-2 of ESA showing the base with Groom Lake just to the north-northeast. Homey Airport.
Aerospace Data Facility-East. / 38.73611°N 77.15833°W / 38.73611; -77.15833. Aerospace Data Facility-East ( ADF-E ), also known as Area 58 and formerly known as Defense Communications Electronics Evaluation and Testing Activity ( DCEETA ), is one of three satellite ground stations operated by the National Reconnaissance Office (NRO ...
GPS signals are broadcast by Global Positioning System satellites to enable satellite navigation. Receivers on or near the Earth's surface can determine location, time, and velocity using this information. The GPS satellite constellation is operated by the 2nd Space Operations Squadron (2SOPS) of Space Delta 8, United States Space Force .
e. Cape Canaveral Space Force Station ( CCSFS) is an installation of the United States Space Force 's Space Launch Delta 45, located on Cape Canaveral in Brevard County, Florida . Headquartered at the nearby Patrick Space Force Base, the station is the primary launch site for the Space Force's Eastern Range [5] with three launch pads currently ...
Geo-fence. A geofence is a virtual perimeter for a real-world geographic area. [1] A geofence can be dynamically generated (as in a radius around a point location) or match a predefined set of boundaries (such as school zones or neighborhood boundaries). The use of a geofence is called geofencing, and one example of use involves a location ...
Samples of three GPS satellites' orbits over a five-year period (2013 to 2018) USA-242 · USA-239 · USA-151 · Earth As of 15 August 2023, 83 Global Positioning System navigation satellites have been built: 31 are launched and operational, 4 are unhealthy or in reserve, 41 are retired, 2 were lost during launch, and 1 prototype was never launched. 4 Block III satellites have completed ...
Aerospace Data Facility-Colorado ( ADF-C) or Space Delta 20 ( DEL 20) one of three satellite ground stations operated by the National Reconnaissance Office (NRO) and United States Space Force in the continental United States. [1] Located within Buckley Space Force Base in Aurora, Colorado, the facility is responsible for the command and control ...
The World Geodetic System ( WGS) is a standard used in cartography, geodesy, and satellite navigation including GPS. The current version, WGS 84, defines an Earth-centered, Earth-fixed coordinate system and a geodetic datum, and also describes the associated Earth Gravitational Model (EGM) and World Magnetic Model (WMM).