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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, 3 in reserve or testing, 42 are retired, 2 were lost during launch, and 1 prototype was never launched. 4 Block III satellites have completed construction ...

  3. 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 ...

  4. 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]

  5. GLONASS - Wikipedia

    en.wikipedia.org/wiki/GLONASS

    Glonass-M satellites produced since 2014 (s/n 755+) will also transmit L3OC signal for testing purposes. Enhanced Glonass-K1 and Glonass-K2 satellites, to be launched from 2023, will feature a full suite of modernized CDMA signals in the existing L1 and L2 bands, which includes L1SC, L1OC, L2SC, and L2OC, as well as the L3OC signal. Glonass-K2 ...

  6. Category:GLONASS satellites - Wikipedia

    en.wikipedia.org/wiki/Category:GLONASS_satellites

    This list may not reflect recent changes. * List of GLONASS satellites; G. GLONASS (first-generation satellites) GLONASS-K2; GLONASS-K; GLONASS-M; K. Kosmos 2471 ...

  7. 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.

  8. List of BeiDou satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_BeiDou_satellites

    This is a list of past and present satellites of the BeiDou/Compass navigation satellite system.As of December 2023, 44 satellites are operational: 7 in geostationary orbits (GEO), 10 in 55° inclined geosynchronous orbits (IGSO) and 27 in Medium Earth orbits (MEO).

  9. GPS satellite blocks - Wikipedia

    en.wikipedia.org/wiki/GPS_satellite_blocks

    The Block IIR-M satellites include a new military signal and a more robust civil signal, known as L2C. [17] There are eight satellites in the Block IIR-M series, which were built by Lockheed Martin. [18] The first Block IIR-M satellite was launched on 26 September 2005. The final launch of a IIR-M was on 17 August 2009. [19]

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