What is attitude control of a satellite?
The attitude & orbit control system (AOCS) controls the attitude and position of a complete space vehicle or satellite. Based on this function, the spacecraft orients its solar generators, thermal radiators, thrusters and particularly its payload units, optical instruments and antennas.
What is altitude and orbit control subsystem?
Altitude and Orbit Control (AOC) subsystem consists of rocket motors, which are capable of placing the satellite into the right orbit, whenever it is deviated from the respective orbit. AOC subsystem is helpful in order to make the antennas, which are of narrow beam type points towards earth.
What is the attitude control system Mcq?
What is an attitude control system. (a) It is the system that achieves & maintains the required attitudes. The main functions of attitude control system include maintaining accurate satellite position throughout the life span of the system.
Which are used for attitude control?
Attitude can be described using a variety of methods; however, the most common are Rotation matrices, Quaternions, and Euler angles.
What do you know about attitude control?
Attitude control is the process of controlling the orientation of an aerospace vehicle with respect to an inertial frame of reference or another entity such as the celestial sphere, certain fields, and nearby objects, etc.
How does the attitude and Orbit Control System ( AOCS ) work?
Orbit Control System Attitude and Orbit Control System (AOCS) Attitude and orbit control system is used to control the orbit of the satellite, besides helping to maintain stabilization and its position. The control can be affected by the satellite itself and from the ground.
How is the attitude of a satellite affected?
The control can be affected by the satellite itself and from the ground. Attitude and Orbit Control System (AOCS) consists of four major parts: There are a number of forces working on a satellite which tend to change attitude and orbit of a satellite beyond the permissible limit.
How does the attitude control system ( OHB ) work?
Attitude control system. The attitude & orbit control system (AOCS) controls the attitude and position of a complete space vehicle or satellite. Based on this function, the spacecraft orients its solar generators, thermal radiators, thrusters and particularly its payload units, optical instruments and antennas. OHB, as system house,…
How does orbit control work on a satellite?
For orbit control, sensors are used in the satellite to measure linear acceleration (momentum mentum wheels cannot be used for this control because they cause rotational torques), changes in velocity, sensed by the velocity sensors, are transmitted to the earth’s controlling station.