The Science Analysis System (SAS) is a collection of tasks, scripts and libraries, specifically designed to reduce and analyze data collected by the XMM-Newton observatory.
The following initialization procedure will need to be conducted for you to use SAS:
setenv SAS_PATH /usr/local/xmmsas/ setenv SAS_DIR /usr/local/xmmsas/
export SAS_PATH=/usr/local/xmmsas/ export SAS_DIR=/usr/local/xmmsas/
Please see http://xmm.vilspa.esa.es/external/xmm_sw_cal/sas_frame.shtml for more information. There are links to user documentation on this page.