Engineering observation was carried out
![](https://pfs.ipmu.jp/blog/wp-content/uploads/2024/04/run15_observers-176x176.png)
We had an engineering observation from 8th to 17th March 2024, several month after the previous observation. We carried out the on-telescope test in December 2023 to take calibration data, but this was the first time to “observe” celestial objects with four Spectrograph Modules. In fact, there were a couple major updates before this engineering observation, and we’ll show them… Read more »