some components commonly found on most satellites
Antennas: Satellite antenna systems are used to receive and transmit signals to and from Earth.
Command and Data Handling: The operational heart of a satellite, command and control systems monitor every aspect of the satellite and receive commands from Earth for operation.
Guidance and Stabilization: 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 maneuvers allow a satellite to fine-tune its position and orientation.
Housing: Constructed from strong materials that can withstand the harsh space environment.
Power: Most satellites rely on a solar array to convert sunlight into energy.
Thermal Control: Guards satellite equipment against extreme changes in temperature.
Transponders: Uplink and downlink signals arrive and depart at different frequencies. Transponders convert uplinked frequencies to downlink frequencies and then amplify the converted transmission for sending to Earth.
Solar cell and battery backup- It keeps satellite running in space. Solar cell converts solar energy to the electrical energy for satellite operation. During sun light conditions it is very useful. During the absence of sun light battery will take care of providing power to the satellite for its operation.
NiCd, NiMH2,NiH2,NaS and LiIon based batteries are used in satellite based on need.
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