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10 September 2025

XRISM Performance Verification Data Public Release

We are pleased to announce the public release of the XRISM Performance Verification (PV) phase data. This is the first large set of XRISM observations to be made available to the worldwide astronomical community.

The PV phase for XRISM consisted of the first six months of science observations for the mission, with the goal of providing the scientific community worldwide with a comprehensive set of observations thoroughly verifying the capability of the mission to fulfill all its scientific goals. This phase lasted from February through August of 2024.

XRISM about XRISM Performance Verification Data Public Release
XRISM right-side flyby, available both as a 4K/30 fps movie and as frames. Credit: NASA's Goddard Space Flight Center Conceptual Image Lab
X-Ray Imaging and Spectroscopy Mission

he XRISM PV data can be downloaded from the NASA High Energy Astrophysics Science Archive Research Center (HEASARC) archive.

XRISM is now in the General Observer (GO) phase, in which it will be for the remainder of the mission. We anticipate releasing the Cycle 3 Call for Proposals in late 2025. XRISM maintains a 1-year proprietary period on all GO data, after which GO will also be publicly available.

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