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SpaceRef - Exploration and Missions - Robotic Missions - Astrophysics And Astronomy - X-ray Multi Mirror Mission (XMM)
X-ray Multi-Mirror Mission (XMM) ESA website - XMM is a ESA mission currently planned to be launched in December 1999. The observatory consists of three coaligned high throughput 7.5m focal length telescopes with 6 arc second FWHM (15 arc second HPD) angular resolution. [European Space Research and Technology Centre]
X-ray Multi-Mirror Mission (XMM) NASA website - XMM is a ESA mission currently planned to be launched in December 1999. The observatory consists of three coaligned high throughput 7.5m focal length telescopes with 6 arc second FWHM (15 arc second HPD) angular resolution. [NASA Goddard Space Flight Center]
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