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A ground segment consists of all the ground-based elements of a space system used by operators and support personnel, as opposed to the space segment and user segment. [ 1 ] [ 2 ] : 1 The ground segment enables management of a spacecraft, and distribution of payload data and telemetry among interested parties on the ground.
Guidance, navigation and control (abbreviated GNC, GN&C, or G&C) is a branch of engineering dealing with the design of systems to control the movement of vehicles, especially, automobiles, ships, aircraft, and spacecraft. In many cases these functions can be performed by trained humans.
NASA Systems Engeering Handbook SP-601S: "This handbook is intended to provide information on systems engineering that will be useful to NASA system engineers, especially new ones. Its primary objective is to provide a generic description of systems engineering as it should be applied througout NASA.
The Network Control Center Data System (NCCDS) is an element of the SN ground segment. [3] Collocated with the White Sands Tracking and Data Relay Satellite System, the NCCDS is the operations control facility for the network. It schedules most Space Network elements and supporting elements and provides interfaces for planning, acquisition ...
In 2004, the Galileo System Test Bed Version 1 (GSTB-V1) project validated the on-ground algorithms for Orbit Determination and Time Synchronisation (OD&TS). This project, led by ESA and European Satellite Navigation Industries, has provided industry with fundamental knowledge to develop the mission segment of the Galileo positioning system. [128]
The space segment of an artificial satellite system is one of its three operational components (the others being the user and ground segments). It comprises the satellite or satellite constellation and the uplink and downlink satellite links. [1] The overall design of the payload, satellite, ground segment, and end-to-end system is a complex ...
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Ground system may refer to: Counterpoise (ground system), a non-radiating part of a radio antenna on or nearest the earth; Ground (electricity), a reference point in an electrical circuit from which voltages are measured, or a common return path; Ground segment, the ground-based components of a spacecraft system