Testing spray before servicing CO2 cleaning nozzles on Subaru Telescope

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Uploaded by on Feb 10, 2011

CO2 cleaning facility on Subaru Telescope uses dry ice to clean the surface of the primary mirror. The nozzles were serviced on summer 2010. The video shows that some of the nozzles are clogged after 10 years of operations.

Copyright 2011 by Daigo Tomono. Distributed under CC-by license.

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