Spacecraft Attitude Determination Quiz
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Questions and Answers

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?

  • 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?

  • 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?

    <p>To point its antennas toward certain geographical regions of the Earth</p> Signup and view all the answers

    What is the role of the Attitude Control System (ACS) in Earth-observation satellites?

    <p>Allowing cameras and sensors to track defined targets on the earth's surface</p> Signup and view all the answers

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