Orbit Replaceable Unit

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An Orbital Replaceable Unit is a modular component of spacecraft that can be replaced upon failure by a robot or by an Extra-Vehicular Activity. The Hubble Space Telescope was designed with 70 such parts.[1] The electrical system of the International Space Station also has such subsystems that provide power generation, power distribution and energy storage.[2]

References

  1. ↑ "HST Orbital Replacement Units". Setas-www.larc.nasa.gov. Retrieved 2013-03-27. 
  2. ↑ "Glenn Leads Sustaining Engineering of Power System Hardware". Spaceflightsystems.grc.nasa.gov. 2008-02-14. Retrieved 2013-03-27. 


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