Solar wind summary

Solar wind parameters, as measured by the ACE spacecraft, showed the
influence of a weak, negative-polarity coronal hole high-speed stream
(CH HSS). Wind speed began a steady increase starting at approximately
07/0400 UTC and reached a peak of 396 km/s at 07/0827 UTC. The total
interplanetary magnetic field ranged between +13.5 nT and +3.9 nT while
the Bz component hit -9.9 nT at 07/1002 UTC. The phi angle started the
period oriented in a positive (away) solar sector but underwent a solar
sector boundary crossing to a negative (toward) orientation at
approximately 07/0400 UTC. Phi shifted to a positive (away) sector at
07/1122 UTC to end the period.

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