XMM-Newton Data Files Handbook

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Next: OM Fast Mode Event List File Up: 4.1.7 OM science files Previous: 4.1.7 OM science files OM Imaging Mode Data Image File

An OM image file (*OM*IMI.FIT) is produced for each imaging mode science window. It is an image file, with a single image extension containing a single image. For images taken in full frame high resolution mode, the image files are stored as *OM*E4I.FIT (see also Sect. 4.1.8).

The binning information is provided by the header keywords BINAX1 and BINAX2. The header keywords WINDOWX0, WINDOWY0, WINDOWDX, WINDOWDY give the lower left corner and the size of the readout window in pixel units. For example, in "High-resolution" Full Frame Mode: WINDOWX0=0, WINDOWY0=0, WINDOWDX=2048, WINDOWDY=2048.

European Space Agency - XMM-Newton Science Operations Centre