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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 ...
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 ...
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]
All satellites broadcast at the same two frequencies, 1.57542 GHz (L1 signal) and 1.2276 GHz (L2 signal). The satellite network uses a CDMA spread-spectrum technique [160]: 607 where the low-bitrate message data is encoded with a high-rate pseudo-random (PRN) sequence that is different for each satellite. The receiver must be aware of the PRN ...
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]
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 ...
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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.