https://heasarc.gsfc.nasa.gov/docs/xrism/ Latest XRISM News and Updates Thu, 28 May 2026 16:11:04 -0400 https://heasarc.gsfc.nasa.gov/Images/xrism/xrism_4k_web.jpg https://heasarc.gsfc.nasa.gov/docs/xrism/ https://heasarc.gsfc.nasa.gov/docs/xrism/proposals/ao3/AO3_approved_targets.html The list of AO3 approved targets is now <a href="https://heasarc.gsfc.nasa.gov/docs/xrism/proposals/ao3/AO3_approved_targets.html" >publicly available </a >. For each proposal submitted to NASA in response to the XRISM Cycle 3 call for Type-1 proposals, a detailed email with panel evaluation will be sent at a later date. fbbc23a3a533c4e0d0475865f948225e Thu, 28 May 2026 11:40:12 -0400 https://heasarc.gsfc.nasa.gov/docs/heasarc/caldb/caldb_wotsnew.html#xrism_20260415 The XRISM Caldb for the Resolve and XTEND instruments has been updated to version 20260315 (CALDB 13). Tar files can be downloaded from the <a href="https://heasarc.gsfc.nasa.gov/docs/xrism/calib">XRISM Calibration page</a>. bd8b82a89e3c5915682200a66d04ed20 Wed, 15 Apr 2026 13:16:00 -0400 https://heasarc.gsfc.nasa.gov/docs/xrism/proposals/ The ARK/RPS system is now open for XRISM Cycle 3 proposal submission at <a href="https://xrsrv1.isas.jaxa.jp/ark/">JAXA</a>, <a href="https://heasarc.gsfc.nasa.gov/ark/xrism/">NASA</a> and <a href="https://xrismrps.esac.esa.int/ark/">ESA</a>, until the deadline on <b>February 27th, 2026</b>. Prospective proposers should check for updates in the Cycle 3 version of the <a href="https://heasarc.gsfc.nasa.gov/docs/xrism/proposals/POG/">Proposers' Observatory Guide</a>. 588eb804a84472ca7d3a64f0e4abdfca Fri, 23 Jan 2026 16:05:00 -0500 https://heasarc.gsfc.nasa.gov/docs/xrism/proposals/ The <a href="https://nspires.nasaprs.com/external/viewrepositorydocument/cmdocumentid=1046252/solicitationId=%7BA952E51B-7AD4-B180-2F8C-4E8A79AFFAED%7D/viewSolicitationDocument=1/D.03%20AGIGO_Amend28_XRISM.pdf">XRISM Cycle 3 call for GO proposals</a> has been announced and is now open. The due date for XRISM Cycle 3 proposal submission is <b>February 27th, 2026</b>. See the <a href="https://heasarc.gsfc.nasa.gov/docs/xrism/proposals/">Proposals and Tools webpage</a> for more information. 01d25c78cd2615bef2711a2e0e9f6d11 Wed, 10 Dec 2025 14:00:00 -0500 https://heasarc.gsfc.nasa.gov/docs/xrism/proposals/ao2/AO2_approved_targets.html The list of AO2 approved targets is now publicly available on the XRISM Proposals webpage. For each proposal submitted to NASA in response to the XRISM Cycle 2 call for Type-1 proposals, a detailed email with panel evaluation will be sent at a later stage. c4d4bc13e52df4bdfa868020caf9a876 Tue, 07 Oct 2025 17:19:35 -0400