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2. List of GPS satellites - Wikipedia

   en.wikipedia.org/wiki/List_of_GPS_satellites

   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 ...

3. GPS Block IIIF - Wikipedia

   en.wikipedia.org/wiki/GPS_Block_IIIF

   GPS IIIF will be the first GPS satellite block to have all space vehicles participate in the Cospas-Sarsat system. The Cospas-Sarsat system is an international collection of satellites spanning low-earth, medium-earth, and geostationary orbit satellites which all listen for 406 MHz distress signals generated by beacons on earth.

4. Satellite navigation device - Wikipedia

   en.wikipedia.org/wiki/Satellite_navigation_device

   Satellite navigation device. A satellite navigation device, satnav device or satellite navigation receiver is a user equipment that uses one or more of several global navigation satellite systems (GNSS) to calculate the device's geographical position and provide navigational advice. Depending on the software used, the satnav device may display ...

5. Global Positioning System - Wikipedia

   en.wikipedia.org/wiki/Global_Positioning_System

   The Global Positioning System (GPS), originally Navstar GPS, [ 2 ] is a satellite-based radio navigation system owned by the United States government and operated by the United States Space Force. [ 3 ] It is one of the global navigation satellite systems (GNSS) that provide geolocation and time information to a GPS receiver anywhere on or near ...

6. GPS signals - Wikipedia

   en.wikipedia.org/wiki/GPS_signals

   v. t. e. 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.

7. SPOT Satellite Messenger - Wikipedia

   en.wikipedia.org/wiki/SPOT_Satellite_Messenger

   SPOT Gen3 Satellite Messenger. SPOT is a GPS tracking device that uses the Globalstar satellite network [1] to provide text messaging and GPS tracking (depending on the subscription type purchased). [2][3] It has a coverage area that includes a large portion of the planet, with the exception of extreme northern and southern latitudes and parts ...