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Earth Exploration-Satellite Service

Handbook

image of Earth Exploration-Satellite Service

This Handbook provides full and comprehensive information on the development of EESS systems. Specifically, it provides basic definitions, sheds light on the technical principles underlying the operation of systems and presents their main applications to assist administrations in the spectrum planning, engineering and deployment aspects of these systems.

English

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Earth exploration-satellite telemetry, tracking, and command functions and technical implementations

The primary satellite functions discussed below – telemetry, tracking, and command (referred to as TT and C, or TT&C) – are operations functions associated with the satellite bus. The satellite bus provides the necessary support functions for the operation of the instruments, which are frequently called the satellite payload. The satellite bus provides power, attitude control (maintaining the desired orientation of the satellite, or satellite pointing), commanding and data handling, health-monitoring (both satellite and payload), station-keeping (i.e., maintaining the desired orbit and correcting for atmospheric drag, orbit precession, etc.), and maintaining the correct thermal environment (e.g., turning on heaters if necessary), amongst other functions.

English

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