Rerunning the pipeline

It is very likely that you will want to filter your data to some extent; in this case, you will need to reprocess it in order to determine the appropriate filters, regardless of the age of the observation.

To rerun the pipeline:

1)

Create the directory for processed data, PROC, by right-clicking on the ObsID directory and choosing the option ``Create new directory''. Highlight PROC by single-clicking on it.

2)

In the Available Tools panel, under ``XMM-SAS'', call rgsproc. (The task automatically processes all exposures, so if you want to process data only from RGS1, set ``enable explicit subset of exposures'' to ``yes'', and directly below, in the ``instrument exposure id list'' box, enter the six-digit string that corresponds to the RGS1 data, e.g., ``R1S001''.) In the task pop-up window, click ``Run''.

3)

Rename the output event file something easy to type, for example, rgs1.fits, by right-clicking on the repipelined event file. Throughout the following, we will assume that the processed RGS1 and RGS2 data are rgs1.fits and rgs2.fits, respectively.

To rerun the pipeline from the Command Window, type:

rgsproc

We will assume that the newly pipelined event files are named rgs1.fits and rgs2.fits.

Once the new event files have been obtained, the analysis techniques described later in this chapter can be used.