The following document contains the XMM-Newton cross calibration situation with SAS 10.0 and public CCFs.
This document is updated annually, however, further information may also be obtained from the Users Group Documentation
Calibration Review Tool
The Calibration review tool provides an overview of the XMM-Newton internal cross-calibration and the cross-calibration with XMM-Newton and Chandra for different calibration versions (SAS+CCF). Joint and individual fits to various data sets are available for comparison and general statistical information on the calibration situation ias also available.
The Calibration Review Tool is available here.