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The in-orbit imaging performance of the three X-ray telescopes on board ofthe X-ray astronomy observatory XMM-Newton is presented and compared with theperformance measured on ground at the MPE PANTER test facility. The comparisonshows an excellent agreement between the on ground and in-orbit performance.Comment: 9 pages, 10 Postscript figures, for SPIE 4012, paper 8

<title>Imaging performance of the XMM-Newton x-ray telescopes</title>