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Questions and Answers
What is the importance of knowing and controlling the attitude of a spacecraft?
What is the importance of knowing and controlling the attitude of a spacecraft?
- It is essential for pointing and holding the satellite in the desired direction during orbital maneuvers. (correct)
- It is important for maintaining communication with ground stations.
- It is crucial for ensuring the safety of astronauts on board.
- It is necessary for adjusting the altitude of the spacecraft.
Which type of satellite may be designed to keep the spin axis of its body pointed at some particular direction in space?
Which type of satellite may be designed to keep the spin axis of its body pointed at some particular direction in space?
- Earth-observation satellite
- Spin-stabilized satellite (correct)
- Geostationary telecommunication satellite
- Nadir-pointing three-axis-stabilized satellite
What task does a nadir-pointing three-axis-stabilized satellite need to perform?
What task does a nadir-pointing three-axis-stabilized satellite need to perform?
- Keeping its three Euler angles close to null relative to the orbit reference frame (correct)
- Adjusting its altitude during orbital maneuvers
- Maintaining communication with ground stations
- Keeping its antennas pointed toward certain geographical regions of the Earth
In what scenario is it crucial for a geostationary telecommunication satellite to maintain the orientation of its antennas?
In what scenario is it crucial for a geostationary telecommunication satellite to maintain the orientation of its antennas?
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What is the role of the Attitude Control System (ACS) in Earth-observation satellites?
What is the role of the Attitude Control System (ACS) in Earth-observation satellites?
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