XMM-Newton Science Analysis System: User Guide


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Next: 4.11.3 Output files Up: 4.11 Processing EPIC slew data Previous: 4.11.1 The slew data


4.11.2 Processing Steps

The steps to be followed to process a slew datafile are detailed below:

The first four steps are identical to the processing of pointed data.

The task eslewchain divides the slew into a series of small images which are roughly 1 degree by 0.5 degrees in size. Images are created in several energy bands:

1 = 0.2-0.5 keV
2 = 0.5-1.0 keV
3 = 1.0-2.0 keV
4 = 2.0-12.0 keV
5 = 0.2-2.0 keV
0 = 0.2-12.0 keV

For pn slews, images are created using a selection expression of the form:

FLAG==0 && PATTERN==0
for energies between 200-500 eV and
FLAG==0 && PATTERN<=4
for energies $>$ 500 eV

NB: It is imperative to use the Raw Attitude File (RAF) during the processing. If the default attitude is used then source positions will be wrong by roughly 1 arcminute.


next up previous contents
Next: 4.11.3 Output files Up: 4.11 Processing EPIC slew data Previous: 4.11.1 The slew data
European Space Agency - XMM-Newton Science Operations Centre