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Hubble Space Telescope Rate Gyro Assemblies

Hubble Space Telescope Rate Gyro Assemblies
Hubble has a sophisticated system that controls its position 24 hours a day. It is called the Pointing Control System (PCS). The PCS is composed of gyroscopes, reaction wheels, and fine guidance sensors.
  • Release Date
    August 31, 2005
  • Science Release
    Hubble Space Telescope Begins “Two-Gyro” Science Operations
  • Credit
    Illustration: NASA, ESA, A. Feild (STScI), and Lockheed Martin

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Last Updated
Mar 28, 2025
Contact
Media

Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov