Tag Archives: Subaru

Prime Focus Instrument has arrived at Subaru Telescope

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Time flies and a half of 2021 has already passed. Earlier this year, the first fiber cable unit and the miniature telescope for night sky study “SuNSS” was installed on Subaru telescope. In this article, we report a big news of our project. Finally the Prime Focus Instrument has delivered from Taiwan to Subaru Telescope in June 2021!! Prime Focus… Read more »

PFS spectrograph observed sky spectra!

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As shown in the last article, the first fiber cable unit was installed on the Subaru telescope. In fact, in the same period, we have installed another instrument — a miniature telescope called “SuNSS” to study sky spectra at Mt. Maunakea. Since night-sky emission originates from the atmosphere, any spectra observed by ground-based telescopes contain sky component as a noise…. Read more »

The first fiber cable unit has been installed on Subaru telescope

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We PFS project passed two big milestones recently. We will talk about them in this post and the next. The fist milestone is the first fiber cable unit, which was delivered to Hawaii Observatory, National Astronomical Observatory of Japan in the end of the last year, has been installed on Subaru telescope at last! We observe about 2400 spectra of… Read more »

The first Spectrograph Module was re-assembled at Subaru Telescope

Earlier we reported that one of the PFS instruments, the first Spectrograph Module was shipped to Hawaii Observatory, National Astronomical Observatory of Japan in Hawaii (see here). More recently, the module has been transported to Subaru Telescope at the summit of Maunakea, and re-assembled there. PFS Spectrograph Module consists of ten and several assemblies such as camera units, grating assemblies,… Read more »

On-telescope Test of the Metrology Camera System

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 »

The prototype fiber cable has been installed on the telescope

We reported that Metrology Camera System had been installed to the Subaru Telescope for the test. MCS, however, is not the only instrument for PFS to have been installed to the telescope. The prototype fiber cable was also routed on the telescope to test the optical performance about a half year ago. The work was done a little long time… Read more »

After the arrival of metrology camera at the Subaru telescope…

Since we published the article about the delivery of the Metrology Camera System (MCS) to Subaru Telescope in May this year, the member mainly from ASIAA (Academia Sinica Institute of Astronomy and Astrophysics, Taiwan) have visited Subaru Telescope a few times, in order to finalize the integration and proceed the on-site tests. In this article, we are going to talk… Read more »

Metrology Camera is at Subaru Telescope Now!

About one month has passed since Metrology Camera was shipped from Taiwan. Now it has arrived at Subaru Telescope at Maunakea in Hawaii. After shipping, from 23 April 2018, members from Academia Sinica, Institute of Astronomy and Astrophysics (ASIAA) visited to Hawaii Observatory of National Astronomical Observatory of Japan for final development. At Hilo base, ASIAA inspected Metrology Camera and… Read more »

The first things installed at the Subaru telescope is …

The subsystems of the PFS instrument are being developed at various institutes. These subsystems will be delivered to the Subaru telescope in Hawaii from what will be finished integration and test at the laboratory. It is already one year before the first subsystem will be delivered to the Subaru telescope, and start its integration and test there. To operate the… Read more »

Subaru renovated a dome floor for the PFS Spectrographs

In July 2017, the Spectrograph Clean Room  was finally built up on the fourth floor of the dome building at Subaru Telescope! Spectrograph Clean Room at Subaru Telescope It has been one year and a few month since the previous instrument was cleaned up from the floor, in order to accommodate four PFS spectrographs. Since then, floor has been reinforced,… Read more »