NewAthena is an observatory that is currently planned by ESA for 2038, to be launched into orbit at the L1 point. It should be able to detect sources down to ~1 x 10⁻¹⁶ erg cm⁻² s⁻¹. It will have two...
Einstein Probe is a Chinese mission launched on 9th January 2024 into a low Earth orbit. It has a Wide field telescope (WXT) with a field of view of 3600 square degrees and spatial resolution FWHM ~5’. It also has...
The Roentgen Satellite, ROSAT, a Germany/US/UK collaboration, was launched on June 1, 1990 into a low Earth orbit and operated for almost 9 years. It was sensitive in the 0.1-2.4 keV band. The two X-ray instruments were the Position Sensitive...
Spectrum-Roentgen-Gamma (SRG) is a German-Russian mission launched on July 13 2019, and placed in a halo orbit around the L2 point to scan the sky. The eROSITA (extended ROentgen Survey with an Imaging Telescope Array) instrument observes in the energy...
The Space-based multi-band astronomical Variable Objects Monitor (SVOM) is a French-Chinese mission that was launched on 22nd June 2024 into low Earth orbit. This spacecraft, designed to rapidly slew to observe transients, has four instruments: ECLAIRs with a 2 sr...
