The XMM-Newton Scientific Analysis Subsystem (SAS) is the main analysis tool for XMM-Newton data reduction. The purpose of this document is to guide the investigators in analysing the data corresponding to an observation.
The data corresponding to an observation performed with XMM-Newton comprise among a large number of products the fundamental ones: the raw and calibrated event files collected by the instruments on-board XMM-Newton: the European Photon Imaging Cameras (EPIC), the Reflection Grating Spectrometers (RGS) and the Optical Monitor (OM).