experimental

Entry: GPS

URI: https://terra-vocabulary.org/ncl/FAIR-Incubator/earthscienceplatforms/c_ec1753b9

The Global Positioning System (GPS) Satellite is a system of satellites developed by the US Department of Defense to provide all-weather round-the-clock navigation capabilities for military ground, sea, and air forces. Since its implementation, GPS has also become an integral asset in numerous civilian applications and industries around the globe, including recreational uses (e.g. boating, aircraft, hiking), corporate vehicle fleet tracking, and surveying. GPS employs 24 spacecraft in 20,200 km circular orbits inclined at 55 degrees. These spacecraft are placed in 6 orbit planes with four operational satellites in each plane. All launches have been successful except for one launch failure in 1981. The full 24-satellite constellation was completed on March 9, 1994. GPS receivers use triangulation of the GPS satellites' navigational signals to determine their location. The satellites provide two different signals that provide different accuracies. Coarse-acquisition (C/A) code is intended for civilian use, and is deliberately degraded. The accuracy using a typical civilian GPS receiver with C/A code is typically about 100 meters. The military's Precision (P) code is not corrupted, and provides positional accuracy to within approximately 20 meters.

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is a Concept | Platform
submitted byViqui Agazzi
accepted on 19 Sep 2022 08:12:55.868

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date accepted 19 Sep 2022 08:12:55.868
date submitted 19 Sep 2022 08:09:54.775
definition
entity GPS
source graph graph

item class Concept | Platform
label GPS
notation c_ec1753b9
register earthscienceplatforms
status status experimental
submitter
account name victoria.agazzi@teledetection.fr
name Viqui Agazzi

type register item
version info 2
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Definition

broader Navigation systems
definition The Global Positioning System (GPS) Satellite is a system of satellites developed by the US Department of Defense to provide all-weather round-the-clock navigation capabilities for military ground, sea, and air forces. Since its implementation, GPS has also become an integral asset in numerous civilian applications and industries around the globe, including recreational uses (e.g. boating, aircraft, hiking), corporate vehicle fleet tracking, and surveying. GPS employs 24 spacecraft in 20,200 km circular orbits inclined at 55 degrees. These spacecraft are placed in 6 orbit planes with four operational satellites in each plane. All launches have been successful except for one launch failure in 1981. The full 24-satellite constellation was completed on March 9, 1994. GPS receivers use triangulation of the GPS satellites' navigational signals to determine their location. The satellites provide two different signals that provide different accuracies. Coarse-acquisition (C/A) code is inte...
exact match e66a90c4 3a5c 4e52 b039 bc93857642bf | 0593de4e 2b7d 3d8a 0c2f 581412fda12e
label GPS
pref label GPS
type Concept | Platform