Having finally retrieved all the scaler data out of HPSS, I calculated from boards 6 and 11 relative luminosity R3 from ZDC and BBC coincidences. I also applied rate corrections to the BBC data.

The first page of the included graphs shows R3 from these three sources through the whole run. The second page shows the evolution of R3 through a single fill.  Both raw and rate corrected are shown. The last page shows the ratio of R3 from ZDC to R3 from BBC. It provides a useful quality check, as it graphically highlights runs where the two detectors do not agree.