[AZ-Observing] Re: Aurora in Tucson

Chris Schur claims that the single best indicator of auroral activity is 
the Kp index.  It is plotted at the bottom of this page:

http://www.orion-drustvo.si/MBKTeam/auroramon.html

It went either to 9 or off-scale at 9h UT (2:00 this morning).


Tom (whose amplifier goes up to 11)



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