Development of space telescope non-ORU hardware

Details Development of space telescope non-ORU hardware Development of space telescope non-ORU hardware

Dec 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985essc.rept.....r&link_type=abstract

Final Report Essex Corp., Huntsville, AL.

Other

Hardware, Hubble Space Telescope, Orbital Servicing, Replacing, Electric Connectors, Extravehicular Activity, Fasteners, Maintenance, Neutral Buoyancy Simulation

Scientific paper

Since 1979 work has progressed in the development of the Hubble Space Telescope (HST) mockup. Underwater simulations to evaluate proposed on-orbit servicing tasks have also been done. These tasks involve the planned changeout of scientific instruments and the unscheduled changeout of other orbital replacement units (ORUs) such as batteries and computers. The HST components and subsystems that originally were designated ORUs were the items that were mission critical and were designed for easy changeout. Mockups of 14 non-ORU items were designed and fabricated for the purpose of evaluating the EVA changetasks in the MSFC Neutral Buoyancy Simulator (NBS). The objectives of this design/fabrication/test activity were to design and fabricate the potential ORUs so they contained realistic interfaces and were compatible with the NBS environments. The attachment of the mockup hardware to the spacecraft mockup was similar to the flight version. Also, the hardware connectors were flight-like.

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