The XMM payload

If the XMM spacecraft were made of glas, one could gain the above view of its payload. The X-ray telescopes, two with Reflection Grating Arrays, are visible at the lower left. At the right end of the assembly, the focal instruments are shown: The EPIC MOS cameras with their radiators (black/green "horns"), the radiator of the EPIC p-n camera (violet) and those of the (light blue) RGS receivers (in orange). The black box at the bottom of the bus is the outgassing device.

Photo courtesy of Dornier Satellitensysteme GmbH.