XMM Mirror Support Platform (STM)

ESA's X-ray Multi-Mirror (XMM) high-throughput X-ray spectroscopy mission will be launched by Ariane-5 in 1999. XMM's Mirror Support Platform Structural and Thermal Model (STM) is seen under verification at Dornier, featuring the three telescopes (one opened) and the Optical Monitor. [Image Date: 1997-09-00] [97.10.010-002]