The X-Ray Imaging and Spectroscopy Mission (XRISM) is a JAXA/NASA collaborative mission, with ESA participation. XRISM was launched on September 7, 2023 into a low Earth orbit.
The XRISM payload consists of two instruments: Resolve provides non-dispersive 5-7 eV energy resolution in the 1.6-12 keV bandpass with a field of view of about 3 arcmin.
The angular resolution is 23’’(FWHM) and the spectral resolution ~4’’. Xtend has a field of view of 38 x 38 arcmin and observes in the energy range 1.6-13 keV.
The angular resolution is of the order of 10’’ (FWHM) and the spectral resolution ~4’’. Xrism is sensitive down to ~1 x 10⁻¹⁴ erg cm⁻² s⁻¹.
For more information please see https://heasarc.gsfc.nasa.gov/docs/xrism/