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Global Positioning System

Aerospace Engineering

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The Global Positioning System (GPS) is a satellite-based hyperbolic navigation system owned by the United States Space Force and operated by Mission Delta 31. It is one of the global navigation satellite systems (GNSS) that provide geolocation and time information to a GPS receiver anywhere on or near the Earth where signal quality permits. It does not require the user to transmit any data, and operates independently of any telephone or Internet reception, though these technologies can enhance the usefulness of the GPS positioning information. It provides critical positioning capabilities to military, civil, and commercial users around the world. Although the United States government created, controls, and maintains GPS, it is freely accessible to anyone with a GPS receiver.

Facts
Year
1978 1
Infobox gives the first GPS satellite's launch date (22 February 1978); the lead states GPS became fully operational only in 1993, a fact that appears in the article's History section rather than its lead or infobox, so this width-first pass records only the infobox launch date rather than half-guessing the operational date.
Significance
It provides critical positioning capabilities to military, civil, and commercial users around the world. Although the United States government created, controls, and maintains GPS, it is freely accessible to anyone with a GPS receiver. 1
Sources
1. Global Positioning System (Wikipedia)
Wikimedia FoundationLead section
Quote, Lead section
Although the United States government created, controls, and maintains GPS, it is freely accessible to anyone with a GPS receiver.
View the Source
1. Global Positioning System (Wikipedia)
Wikimedia FoundationInfobox, First launch field
Quote, Infobox, First launch field
1978
View the Source
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