What's New


21 Feb 2024 - XRISM tools available for Cycle 1 GO proposals: The XRISM Proposer's Observatory Guide, response files and tools for GO proposal feasibility are now available. In addition, because the Resolve aperture door ("gate valve") has not yet opened, the exposure time limit for GO proposals has been increased to 300 ks per pointing. However, the overall limit per proposal is still 600 ks.

05 Jan 2024 - XRISM first light: XRISM's first light has been released! The two instruments are performing exceptionally: Resolve reaching a spectral resolution of 5 eV (exceeding the 7 eV requirement) and Xtend performing as expected.

04 Jan 2024 - XRISM Cycle 1 call for GO proposals: The XRISM Cycle 1 call for GO proposals has been announced and is now open. See the Proposals and Tools webpage for more information.

02 Nov 2023 - The 2nd XRISM Community Workshop: Jan. 17-19, 2023: This workshop is to prepare the astronomical community for the upcoming Cycle 1 General Observer Call for Proposals for XRISM. There is no registration fee; however, registration is required. Deadline for in-person participation is Dec 22, 2023.

11 Sep 2023 - The end of the critical operation period and the start of commissioning for XRISM: JAXA announced the end of the critical operation period, which is the period after the separation of the satellite from the launch vehicle until the satellite can maintain a stable and safe condition. XRISM has entered the commissioning period, which will last about three months to verify the functions of the satellite's onboard equipment.

07 Sep 2023 - Completion of the sun acquisition control and deployment of the solar arrays for XRISM: JAXA announced that completion of the sun acquisition control and deployment of the solar arrays for XRISM

07 Sep 2023 - Successful Launch of XRISM: XRISM was launched successfully from the Tanegashima Space Center at 8:42 a.m on September 7, 2023 JST (7:42 p.m on September 6, 2023 EDT).

01 Aug 2023 - XRISM Mission to Study 'Rainbow' of X-rays

13 Jul 2023 - XRISM Launch Announced for August 26, 2023: JAXA officially announced the launch date and time for XRISM and corresponding launch window.

26 Oct 2022 - The 1st XRISM Data Analysis Workshop: Feb. 22-23, 2023: This workshop is to prepare the astronomical community for the upcoming Cycle 1 General Observer Call for Proposals for XRISM. There is no registration fee; however, registration is required. Deadline for in-person participation is Dec 6, 2022.

18 Apr 2022 - XGS Call Released: Through the XGS program, scientists who are not XRISM Science Team members may apply to participate in the observation planning and data analysis of individual PV phase targets.

15 Feb 2021 - PV Targets Released: The targets for the Performance Verification (PV) phase of the XRISM mission have been selected. The PV phase will commence after checkout and calibration and will last for approximately six months.

14 Oct 2020 - XRISM Site for the Public at NASA: NASA XRISM web site is now open.

19 Aug 2020 - Assembling XRISM's X-ray Mirrors: Goddard Media Studios features completed components of the flight mirror assemblies developed for XRISM.

31 Jan 2020 - XRISM Calorimeter Spectrometer Insert and Mirror Tests: Goddard Media Studios spotlights testing the XRISM instrument elements.

30 Jan 2020 - Mirror Quadrants for XRISM: Goddard Media Studios presents the XRISM X-ray Mirror Assemblies.

29 Jan 2020 - XRISM Site for the Public at ISAS/JAXA: ISAS/JAXA XRISM web site is now open.

04 Sep 2018 - XRISM Project Initiated by JAXA: JAXA has established the project team for XRISM, which will recover the high resolution spectroscopic capabilities of Astro-H (Hitomi).

11 May 2018 - Five US-based Participating Scientists selected for XARM

12 Sep 2017 - ROSES opportunity to select the Participating Scientists for XARM

01 Sep 2017 - Simulation tools available for the ROSES selection of the Participating Scientists for XARM

24 Aug 2017 - JAXA/NASA announcement to the international community on the plans for scientific participation in the X-ray Astronomy Recovery Mission (XARM)

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