Editing Global Positioning System (section)

== Similar systems ==
{{Main|Satellite navigation}}
{{Comparison satellite navigation orbits}}
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Following the United States's deployment of GPS, other countries have also developed their own satellite navigation systems. These systems include:

* The Russian Global Navigation Satellite System ([[GLONASS]]) was developed at the same time as GPS, but suffered from incomplete coverage of the globe until the mid-2000s.<ref>{{cite magazine|title=Russia Launches Three More GLONASS-M Space Vehicles|url=http://www.insidegnss.com/node/982|magazine=[[Inside GNSS]]|access-date=December 26, 2008|archive-url=https://web.archive.org/web/20090206081945/http://insidegnss.com/node/982|archive-date=February 6, 2009}}</ref> GLONASS reception in addition to GPS can be combined in a receiver thereby allowing for additional satellites available to enable faster position fixes and improved accuracy, to within {{convert|2|m|sp=us|spell=in|ft}}.<ref>{{cite web|url=http://blog.clove.co.uk/2012/01/10/glonass-the-future-for-all-smartphones/|title=GLONASS the future for all smartphones? |author1=Jon |date=January 10, 2012|website=Clove Blog|access-date=October 29, 2016|archive-url=https://web.archive.org/web/20160310151239/http://blog.clove.co.uk/2012/01/10/glonass-the-future-for-all-smartphones/|archive-date=March 10, 2016}}</ref><ref>{{cite journal | doi=10.15292/geodetski-vestnik.2022.01.49-59 | title=Challenges related to the determination of altitudes of mountain peaks presented on cartographic sources | year=2022 | last1=Chwedczuk | first1=Katarzyna | last2=Cienkosz | first2=Daniel | last3=Apollo | first3=Michal | last4=Borowski | first4=Lukasz | last5=Lewinska | first5=Paulina | last6=Guimarães Santos | first6=Celso Augusto | last7=Eborka | first7=Kennedy | last8=Kulshreshtha | first8=Sandeep | last9=Romero-Andrade | first9=Rosendo | last10=Sedeek | first10=Ahmed | last11=Liibusk | first11=Aive | last12=MacIuk | first12=Kamil | journal=Geodetski Vestnik | volume=66 | pages=49–59 | s2cid=247985456 | doi-access=free }}</ref> In October 2011, the full orbital constellation of 24 satellites enabled full global coverage. The GLONASS satellites' designs have undergone several upgrades, with the latest version, [[GLONASS-K2]], launched in 2023.<ref name="tsr-20221219">{{cite web |last=Hendrickx |first=Bart |url=https://www.thespacereview.com/article/4502/1 |title=The secret payloads of Russia's Glonass navigation satellites |work=[[The Space Review]] |date=19 December 2022 |access-date=20 December 2022 |archive-date=20 December 2022 |archive-url=https://web.archive.org/web/20221220033222/https://www.thespacereview.com/article/4502/1 |url-status=live }}</ref>
* China's [[BeiDou Navigation Satellite System]] began global services in 2018 and finished its full deployment in 2020. It consists of satellites in three different orbits, including 24 satellites in medium-circle orbits (covering the world), 3 satellites in inclined geosynchronous orbits (covering the Asia-Pacific region), and 3 satellites in geostationary orbits (covering China).<ref>{{cite news |title=China launches final satellite in GPS-like Beidou system |url=https://phys.org/news/2020-06-china-satellite-gps-like-beidou.html |access-date=June 24, 2020 |work=phys.org |agency=The Associated Press |date=June 23, 2020 |archive-url=https://web.archive.org/web/20200624080233/https://phys.org/news/2020-06-china-satellite-gps-like-beidou.html |archive-date=June 24, 2020 |url-status=live}}</ref>
* The [[Galileo (satellite navigation)|Galileo navigation satellite system]], a global system being developed by the European Union and other partner countries, began operation in 2016,<ref>{{cite web|url=http://www.dw.com/en/galileo-navigation-satellite-system-goes-live/a-36422029|title=Galileo navigation satellite system goes live|publisher=dw.com|access-date=December 17, 2016|archive-url=https://web.archive.org/web/20171018202016/http://www.dw.com/en/galileo-navigation-satellite-system-goes-live/a-36422029|archive-date=October 18, 2017|url-status=live}}</ref> and has been fully deployed by 2020. In November 2018, the [[Federal Communications Commission|FCC]] approved use of Galileo in the [[United States|US]].<ref>{{cite news |title=FCC approves use of Galileo in the US |url=https://galileognss.eu/fcc-approves-use-of-galileo-in-the-us/ |publisher=Galileo |date=19 November 2018}}</ref> As of September 2024, there are 25 [[List of Galileo satellites#Satellites|launched satellites]] that operate in the constellation.<ref>{{cite web|url=https://www.gsc-europa.eu/system-service-status/constellation-information|title=Constellation Information {{!}} European GNSS Service Centre|website=www.gsc-europa.eu|access-date=17 October 2019}}</ref><ref name="First Pair">{{cite web|url=https://insidegnss.com/galileo-elliptical-auxiliary-satellites-removed-from-service/|title=Galileo Elliptical Auxiliary Satellites Removed from Service|publisher=Inside GNSS|date=23 February 2021|access-date=17 December 2021}}</ref><ref>{{cite journal|last1=Hadas|first1=Tomasz|last2=Kazmierski |first2=Kamil|last3=Sośnica|first3=Krzysztof|title=Performance of Galileo-only dual-frequency absolute positioning using the fully serviceable Galileo constellation|journal=GPS Solutions|date=7 August 2019 |volume=23|issue=4|page=108 |doi=10.1007/s10291-019-0900-9|bibcode=2019GPSS...23..108H |doi-access=free}}</ref> It is expected that the next generation of satellites will begin to become operational after 2026 to replace the first generation, which can then be used for backup capabilities.
* Japan's [[Quasi-Zenith Satellite System]] (QZSS) is a GPS [[satellite-based augmentation system]] to enhance GPS's accuracy in Asia-Oceania, with satellite navigation independent of GPS scheduled for 2023.<ref>{{cite web |last1=Kriening |first1=Torsten |title=Japan Prepares for GPS Failure with Quasi-Zenith Satellites |url=https://spacewatch.global/2019/01/japan-prepares-for-gps-failure-with-quasi-zenith-satellites/ |website=SpaceWatch.Global |access-date=August 10, 2019 |date=January 23, 2019 |archive-date=April 19, 2019 |archive-url=https://web.archive.org/web/20190419093030/https://spacewatch.global/2019/01/japan-prepares-for-gps-failure-with-quasi-zenith-satellites/ |url-status=live }}</ref>
* The [[Indian Regional Navigation Satellite System]] (Operational name 'NavIC', Navigation with Indian Constellation), deployed by India.