Real-time Oulu NM count rate. This plot is updated every hour..
Cosmic ray database since April 1964
Description (pdf-file)
(1-min since 1996, 5-min since 1968, 1-h since 1964, 10-sec since 1990 upon
requests) - see readme file
New !
A computer problem caused some delay with data delivery during 01-03 Jan 2009.
No data have been lost.
New registration system is writing data to the data-base EVERY MINUTE since August 1st,2008.
Note the new normalization factor Read News
and
geomagnetic conditions
