In consideration of ESA’s contribution to XRISM, not less than 8% of the total Guest Observing Time, or an equivalent return as mutually agreed, shall be allocated to ESA. This time will be allocated by ESA through a competitive process open to the scientific community of the European member states. The corresponding Announcement of Opportunity is available at this web page.

All XRISM targets for AO1, including the ones selected by the European Time Allocation Committe are listed under
www.cosmos.esa.int/web/xrism/announcements-of-opportunity#ao1list.