XMM-Newton Science Analysis System


emdiag (emdiag-4.1) [xmmsas_20230412_1735-21.0.0]

Output Files

1. offset/variance file for that CCD/node in ODF format (for calibration purposes, [1])
2. masked CCD map(s) as a 600x600 image FITS file with additional EMDHLOW, EMDHUPP, MASKED and CCDMAP keywords (for calibration purposes)
3. event file simulating on-board processing in ODF format (for calibration purposes), with the additional CCDMAP keyword and an extension holding the auxiliary (frame) information (replaced by keywords if there is only one input map). In this format the event coordinates are as in the ODF, i.e. offset by (+6,+1) from the coordinates in the output maps (and the input window parameters).
4. map(s) of pixels above threshold outside events as a 600x600 image FITS file with additional EMDHLOW, EMDHUPP, BRIGHT and CCDMAP keywords (for calibration purposes)

Applicable keywords are propagated from the input diagnostic image file. The window keywords in the input file are converted to [1-600]x[1-600] and clipped following the window parameters set by the user. The EDUTHR keyword may be modified by the user (eduthreshold parameter). The offsets used to analyse the data are incorporated as an offset/variance OFFSETS0 extension in ODF format in the output map and event files.