Astronautics Vocabulary

The Astronautics Vocabulary is a glossary of terms that pertain to the science and technology of spaceflight. This alphabetical list can be navigated by clicking on the letters A-Z displayed on this page.

Definition of Global Positioning System (GPS)

Translation: système de positionnement global

Definition: A system consisting of 25 satellites in 6 orbital planes at 20,000-km altitude with 12-hr periods, used to provide highly precise position, velocity and time information to users anywhere on Earth.

Other Definition: None

Synonym: None