// ORBITAL LOGISTICS AND PROPULSION TERM
Navigation Satellite
A satellite that sends out signals allowing receivers on Earth to determine their precise location, speed, and time, like those used in GPS.
TECHNICAL DEFINITION
A Navigation Satellite is a spacecraft that transmits precise timing and ranging signals from orbit, enabling terrestrial receivers to calculate their exact position, velocity, and time, forming the backbone of Global Navigation Satellite Systems (GNSS) such as GPS, GLONASS, Galileo, and BeiDou.
BACKGROUND
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.
READ MORE ON WIKIPEDIASYNONYMS & ALIASES
- GNSS satellite
- GPS satellite
- positioning satellite
- PNT satellite
USAGE NOTE
Navigation satellites are indispensable for modern transportation, logistics, and timing synchronization.
DEVELOPERS
Organizations developing technology related to Navigation Satellite.
Operates and modernizes the Global Positioning System (GPS) constellation, providing positioning, navigation, and timing (PNT) services to military and civilian users worldwide.
Manages the Galileo system, Europe's independent Global Navigation Satellite System (GNSS), providing highly accurate, guaranteed global positioning services.
The state space corporation of the Russian Federation responsible for operating the GLONASS (Global Navigation Satellite System) constellation.
Oversees the development and operation of the BeiDou Navigation Satellite System (BDS), China's global GNSS that provides PNT services globally.
The prime contractor responsible for designing and building the newest generation of GPS satellites, the GPS III and GPS IIIF series, for the U.S. Space Force.
Developed and operates NavIC (Navigation with Indian Constellation), an autonomous regional satellite navigation system that provides accurate positioning services over India and the surrounding region.
A key industrial partner and prime contractor for Europe's Galileo program, responsible for building a significant portion of the constellation's satellites and contributing to the ground segment.
A major European aerospace company and a prime contractor for the Galileo navigation satellites, responsible for the design, manufacture, and testing of many satellites in the constellation.
Operates the Quasi-Zenith Satellite System (QZSS), also known as Michibiki, a regional satellite system that augments GPS to provide enhanced positioning services for Japan and the Asia-Oceania region.