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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 22 January 2025, 83 Global Positioning System navigation satellites have been built: 31 are launched and operational, 3 are in reserve or testing, 43 are retired, 2 were lost during launch, and 1 prototype was never launched. 3 Block III satellites have completed ...

  3. Satellite navigation - Wikipedia

    en.wikipedia.org/wiki/Satellite_navigation

    GNSS systems that provide enhanced accuracy and integrity monitoring usable for civil navigation are classified as follows: [5] GNSS-1 is the first generation system and is the combination of existing satellite navigation systems (GPS and GLONASS), with Satellite Based Augmentation Systems (SBAS) or Ground Based Augmentation Systems (GBAS). [5]

  4. List of satellites in geosynchronous orbit - Wikipedia

    en.wikipedia.org/wiki/List_of_satellites_in...

    This is a list of satellites in geosynchronous orbit (GSO). These satellites are commonly used for communication purposes, such as radio and television networks, back-haul, and direct broadcast. Traditional global navigation systems do not use geosynchronous satellites, but some SBAS navigation satellites do.

  5. List of Earth observation satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_Earth_observation...

    Series 3 satellites are Sun-synchronous and series 2 and 4 satellites are geosynchronous. Formosat-5: Active Taiwan’s National Space Organization (NSPO) 2017 Gaofen-2: Active CNSA: 2014 Gaofen-3: Active CNSA: 2016 GOES-16 and 17: Active NASA 2016 Geostationary Operational Environmental Satellite. Collects weather observations. See also: List ...

  6. List of GLONASS satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_GLONASS_satellites

    Satellite Launch date/time (UTC) Carrier rocket Launch site Launch block Satellite type GC number Orbital plane [2] Slot [2] Status / Retirement [2] [a] [needs update] Kosmos 1413: 12 October 1982 14:57 Proton-K DM-2: Baikonur, Site 200/39: 1 I: 711 I 1 12 January 1984: Kosmos 1490: 10 August 1983 18:24 Proton-K DM-2: Baikonur, Site 200/39: 2 I ...

  7. US agency probes risks of foreign satellite use by handheld ...

    www.aol.com/news/us-agency-probes-risks-foreign...

    The FCC has concerns U.S. handheld devices are receiving and processing Global Navigation Satellite System (GNSS) signals from satellites controlled by foreign adversaries in violation of ...

  8. Google-backed Pixxel successfully launches India's first ...

    www.aol.com/news/google-backed-pixxel...

    India's space tech startup Pixxel launched three of its six hyperspectral imaging satellites aboard a SpaceX rocket from California on Tuesday. The satellites were launched at 1915 GMT, just after ...

  9. Magellan Navigation - Wikipedia

    en.wikipedia.org/wiki/Magellan_Navigation

    Headquartered in San Dimas, California, with European sales and engineering centres in Nantes, France and Moscow, Russia, Magellan also produces aftermarket automotive GPS units, including the Hertz Neverlost system found in Hertz rental cars. The Maestro, RoadMate, Triton, and eXplorist lines are Magellan's current consumer offerings.