Tag Archives: Engineering run

Engineering First Light!!

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We are going to show the second milestone we achieved this month in this article.At last, we succeeded in taking stars spectra during the recent Engineering observation. That is, we achieved the engineering first light! We PFS project have carried out the on-telescope tests since Metrology Camera System was delivered to Subaru Telescope in 2018. In particular, we started engineering… Read more »

Engineering Observation in November 2021

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Two months after on-telescope test by integrating subsystems, we had another engineering observation (engineering run) on three nights in November 2021. In this article, we’re going to tell a story about our work around the engineering nights. Although we made big progresses in fiber configuration etc. during the September run, we also found a couple of major issues on Prime… Read more »

The first on-telescope test integrating all the delivered subsystems

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We PFS project met a big milestone in September 2021. We finally carried out on-telescope test integrating the subsystems Prime Focus Instrument, Spectrograph Module 1, Fiber Cable System 1, and Metrology Camera System!! PFS instrument consists of four major subsystems: Prime Focus Instrument (PFI) on the prime focus of Subaru Telescope, Metrology Camera System (MCS) on Cassegrain Focus, four identical… Read more »

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 »

On-telescope Test of the Metrology Camera System

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From 23rd to 25th October 2018, or 4 months after Metrology Camera System (MCS) was tested on Subaru telescope, we have finally carried out 2nd test of MCS on the Subaru telescope. Since we used the telescope at night this time, this is the first engineering run with PFS instrument! MCS is the instrument to measure the positions of the… Read more »