SATELLITES
In the context of space exploration, a satellite usually refers to an artificial object placed into Earth’s orbit, be it LEO, MEO, or GEO, for various purposes. Satellites play crucial roles in communication, Earth observation, weather and climate monitoring, positioning, navigation and timing (PNT), scientific research, and more. Satellites are launched into specific orbits depending on their intended purposes to gather information about our planet and the universe beyond. They can be equipped with instruments, equipment, and sensors to collect data, transmit signals, or perform specific tasks. The satellite will communicate and transmit signals and data to the ground station for the information to be gathered and analysed.
THERMAL CONTROL
GUIDANCE AND STABILISATION
The operational heart of a satellite, command and control systems monitor every aspect of the satellite and receive commands from Earth for operation. COMMAND AND DATA HANDLING
POWER
HOUSING
Most satellites rely on a solar array to convert sunlight into energy. Antenna systems are used to receive and transmit signals to and from Earth. ANTENNAS
Sensors monitor the satellite’s position to ensure it remains in the correct orbit and is oriented toward the correct target. If necessary, thrusters and other manoeuvres allow a satellite to fine-tune its position and orientation.
These systems guard satellite equipment against extreme changes in temperature.
The housing is constructed from strong materials that can
withstand the harsh space environment.
A device located within a satellite that captures signals, from antennas, boosts the signals, and then sends them back to Earth through the antenna. TRANSPONDERS
Space Foundation, Geospatial
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