As an avid user of the statistical software R, Bill (AE0EE) did some analysis of the VK0EK log database. The Log Analysis (88 kB PDF) contains many tables and a few figures, which give glimpses into the statistical side of the VK0EK operation.

In the data, it is clear that the there was a strong diurnal cycle to propagation, and a sharp decline in the maximum usable frequency in the late afternoon local (around 1300 UTC). Additionally, the effects of the geomagnetic storm can be seen in the hour-by-hour time series shown above, where on April 3rd and 4th, the high rates typical of other afternoons did not materialize.