Which are the space segment subsystems?
The space segment equipment carried aboard the satellite can be classified under two functional areas, the bus and the payload. The tracking, telemetry, command, and monitoring (TTC&M) subsystem provides essential spacecraft management and control functions to keep the satellite operating safely in orbit.
What are the components in space segment?
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.
What are the various subsystems of a satellite explain their function and characteristics?
1) Power Supply System. 2) Attitude and Orbit Control System. 3) Telemetry, Tracking and Command System. 4) Communication Subsystem.
What is the term space segment?
Space Segment means a set of telecommunications satellites, and the tracking, telemetering, command, control, monitoring and related facilities and equipment for the operational support of those satellites; Sample 1.
What is subsystem and types of subsystem?
Subsystems. The subsystem is where work is processed on the system. A subsystem is a single, predefined operating environment through which the system coordinates the work flow and resource use. The system can contain several subsystems, all operating independently of each other. Subsystems manage resources.
What is space segment and ground segment?
A ground segment consists of all the ground-based elements of a spacecraft system used by operators and support personnel, as opposed to the space segment and user segment. The ground segment enables management of a spacecraft, and distribution of payload data and telemetry among interested parties on the ground.
Why transponders is the most important subsystem of space segment subsystems?
The subsystem, which provides the connecting link between transmitting and receiving antennas of a satellite is known as Transponder. It is one of the most important subsystem of space segment subsystems. Transponder performs the functions of both transmitter and receiver (Responder) in a satellite.
What is propulsion subsystem?
The propulsion subsystem is a fully integrated propulsion subsystem composed mainly of one propellant tank and four hydrazine thrusters integrated under the propellant tank. The propellant tank and the hydrazine thruster are new equipments developed with the main objective of low cost.
What is a satellite subsystem?
A satellite communication consists of mainly two segments. Those are space segment and earth segment. So, accordingly there will be two types of subsystems namely, space segment subsystems and earth segment subsystems.
What is the purpose of space segment?
The main functions of the Space Segment are to transmit radio-navigation signals, and to store and retransmit the navigation message sent by the Control Segment. These transmissions are controlled by highly stable atomic clocks on board the satellites.
What is a subsystem and example?
Subsystem meaning A unit or device that is part of a larger system. For example, a disk subsystem is a part of a computer system. A bus is a part of the computer. A subsystem usually refers to hardware, but it may be used to describe software.
What are the 4 subsystems?
Everything in Earth’s system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called “spheres.” Specifically, they are the “lithosphere” (land), “hydrosphere” (water), “biosphere” (living things), and “atmosphere” (air).
What are the subsystems present in the space segment?
The subsystems present in space segment are called as space segment subsystems. Following are the space segment subsystems. The subsystems present in the ground segment have the ability to access the satellite repeater in order to provide the communication between the users. Earth segment is also called as ground segment.
What is the space segment in satellite communication?
The space segmen t is known to be another crucial aspect of satellite communication systems other than the control and user segment. The space segment undoubtedly includes satellites however it also comprises the ground-based units that help to maintain the operationality of satellites orbiting the earth.
What is the difference between space segment and Earth segment?
Following are the space segment subsystems. The subsystems present in the ground segment have the ability to access the satellite repeater in order to provide the communication between the users. Earth segment is also called as ground segment. Earth segment performs mainly two functions.
What are the two types of subsystems in a satellite communication?
A satellite communication consists of mainly two segments. Those are space segment and earth segment. So, accordingly there will be two types of subsystems namely, space segment subsystems and earth segment subsystems. The following figure illustrates this concept.