14th October


Solar wind parameters, measured at ACE, were indicative of coronal hole high speed stream (CH HSS) influence. Solar wind speed was initially steady, but began to increase to end-of-period values near 475 km/s after 14/0300 UTC. The total field strength ranged from 2 nT to 12 nT while the Bz component ranged from +8 nT to -9 nT throughout the period. The phi angle transitioned from a negative (toward) sector to a positive (away) sector around 14/0700 UTC.

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