A sybase database of the quality control information produced during the processing of the WFC imaging is under construction. In the mean time, an IDL database was constructed from ASCII summary files (produced for each run by Mike Irwin). The Database Description (dbd) file is shown in Appendix 2.
Differential and cumulative histograms of some of the quatities in the database ( e.g. seeing) were produced and can be found here:
http://www.ast.cam.ac.uk/xmmssc/summaries/index.html
This also allows us to detect missing or double occurences of bands, any pointing errors, runs abandonned before completion due to bad conditions, etc.