10th September

Solar wind parameters at ACE continued to indicate a nominal solar wind
regime. Solar wind speeds began the period near 360 km/s before climbing
for a brief period to near 410 km/s. Speeds then returned to the mid to
upper 300 km/s range, where they remained through the end of the period.
IMF total field values held steady between 4 nT to 6 nT throughout the
period, while Bz fluctuated between +/-5 nT. Phi angle remained in a
negative (toward) orientation for the majority of the period, with a few
short-lived oscillations into a positive (away) solar sector

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