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: http://xmm.vilspa.esa.es/sas/7.0.0/watchout/6.1/old_pn_events.shtml
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Here you are some examples of these inconsistencies and, whenever pertinent, an assessment of their scientific impact:
arfgen: warning (ExpiredCcfConstituent), The CCF constituent /xsadata/ccf//XMM_MISCDATA_0013.CCF has been accessed, but it is on the list of expired CCF constituents. This is the associated message:
XMM_MISCDATA_0013.CCF : Cannot be used with SAS versions from 5.3.0 on-wards: it contains the wrong OPTICS_X/Y coordinates for PN
Please consult the CCF release notes at the XMM-Newton SOC.
or
** especget::arfgen: error (ImproperCcfConstituent), The present QuantumEf CCF `/xsadata/ccf//EMOS2_QUANTUMEF_0007.CCF does not contain pattern fraction data - please upgrade to a more recent version
Spectral analysis using the latest SAS with current CCF will yield differences, due to the CTI, for the Small/Large Window modes below 1 keV, which will be evident as shifts in line energies of a few percent or mild changes (of the order of a few tenths in terms of spectral index) in continuum shape.