Similar to CHEOPS

Rossi X-ray Timing Explorer

Small Astronomy Satellite 2

SPHEREx

SPICA (spacecraft)

Submillimeter Wave Astronomy Satellite

TRACE

TUGSAT-1

Wilkinson Microwave Anisotropy Probe

XEUS

IRAS

Akari (satellite)

Advanced Satellite for Cosmology and Astrophysics

AstroSat

Astron (spacecraft)

Ariel 2

Dark Energy Space Telescope

Uhuru (satellite)

Liquid-mirror space telescope

Explorer 11

XMM-Newton

X-ray space telescope

X-Ray Imaging and Spectroscopy Mission

STSat-1

Ginga (satellite)

Granat

Great Observatories program

Calorimetric Electron Telescope