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Extended downtime notice

Due to a planned outage on Friday, April 12th starting at noon through Sunday, April 14th, access to this site will be unavailable during this time. We apologize for any inconvenience.

Getting Started

The XMM optical/UV data was provided to MAST starting in 2006. Updates are obtained weekly? from the Guest Observer Facility at HEASARC. The data are accessible using the XMM Search Form. The search results page also has links to the XMM preview pages which allow individual images to be displayed as gif images or using Aladin..