Thanks to Paolo Bernardini for making the event list and angular
information available from the Lecce analysis for 1997 events (the
dataset in my memo ended around the end of 1996). In the 76 new
events there is no sign of a pronounced deficit at the south pole; in
fact 3 of the 76 events land in the southern-most bin, while only one
of the 295 events from the 1995/1996 sample landed there. So probably
the apparent deficit was just a fluctuation.
On
ftp://ftp.cithep.caltech.edu/pub/macro/lecce.ps
I have placed histograms of the angular distribution of the Lecce
events. The upper two plots are the 1995-1996 dataset, in macro and
geomagnetic coordinates. They are essentially equivalent to the
corresponding plots in my memo based on the Frascati analysis. The
lower two plots are the same thing for the new data.
Bob