The in-orbit XRISM Science Operations

We report on the current status of XRISM science operations from the launch to today, with an introduction of the ground system in XRISM science operations. Currently, XRISM is in the initial observation phase, and operations during the start-up of mission instruments and data processing of the observation data are being carried out. After the transition to the nominal operation phase, we plan and operate observations of each celestial target for in-orbit calibration and functionality checks, and process the data. We also start to call for proposals for Guest Observers and set up a help desk, which provides analysis supports for users.