8th August


Solar wind parameters, measured at ACE, suggested the return of nominal
conditions following the recovery from a positive polarity coronal hole
high speed stream (CH HSS). During the period, solar wind speeds were
generally variable between 350 km/s to 400 km/s while IMF total field
strength ranged between about 2 nT to near 7 nT. IMF Bz was
predominately negative with a maximum deviation of -5 nT. The phi angle
was in a positive (away) orientation through about 08/0700 UTC when a
gradual rotation to a negative (toward) orientation occurred.

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