Monthly Archives: October 2019

2nd On-Telescope Test of Metrology Camera System

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Last year Metrology Camera System (MCS) was shipped to Subaru Telescope of National Astronomical Observatory of Japan, in Hawaii. After onsite integration and test, we installed MCS to the telescope and carried out optical alignment and on-telescope performance tests in June and October 2018. (See this for details)  MCS is installed to the Cassegrain focus at the bottom of the… Read more »

Second phase of fiber cable integration started in Brazil

PFS instrument delivers lights of stars and galaxies from the telescope to our spectrographs by a ~60m-long cable of optical fibers. As we presented in the previous post (, the fiber cables were assembled at the factory of PPC Broadband Inc. in UK. Then the cables were shipped to LNA in Brazil for the next step. If some stress such… Read more »