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Much later than I'd originally intended while I was still SPA Meteor Director, I'm now starting to catch-up with the outstanding meteor shower analyses from late 2011, hopefully in roughly chronological order!
Four radio observers provided counts of meteor echoes in shorter periods across the Draconid peak as well, lasting between 5-10 minutes, which allowed a more detailed examination of activity in the hours around the maximum. A direct comparison between the IMO's visual and the SPA radio results showed again a closely similar pattern, with seemingly even many of the minor fluctuations between individual datapoints found in both sets. The radio information also found activity at or above half the maximum flux had been present from 19:20 to 20:45 UT or so, virtually identical to what the video results showed.
This was naturally a very pleasing outcome, allowing further confirmation of what the earlier analyses had indicated.
In Britain, only a few observers in southern England and the Channel Islands seemed to have had any luck in seeing something of the Draconid outburst, and then often far less than they might have hoped. Elsewhere in mainland Europe, conditions were thankfully often much better.
A full list of observers whose data were included in this analysis can be found on the SPA Forum at forum.popastro.com/viewtopic.php
Assistant Meteor Director, Society for Popular Astronomy
2012 June 2
Added by: Tracie Heywood