XMM-Newton Science Analysis System: User Guide


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6.4 Description of the OM grism data processing chain omgchain

The processing of grism data is very similar to the one performed in image data by omichain. Some tasks used there are also applied to grism data. The whole process is shown in figure 46. It can be divided in:

The complete processing chain extracts by default only the spectrum of the main target, or object placed at the XMM-Newton boresight, and this is what the user will find in the final products. Alternatively, the user may select to extract all objects in the field of view (extractfieldspectra=yes).

Figure 46: SAS processing chain for data acquired in the OM grism mode.
\begin{figure}\centerline{\epsfig{figure=OM/omgchain.eps,width=12cm}}\end{figure}


Subsections
next up previous contents
Next: 6.4.1 Grism specific tasks Up: 6 Analysis of OM optical monitor data Previous: 6.3.4 Measuring the background from image data
European Space Agency - XMM-Newton Science Operations Centre