Solar wind parameters at ACE indicated the arrival of the expected weak
transient CME from the 28 Oct M4 flare at approximately 31/0930 UTC. ACE
MAG/SWEPAM sensors indicated a slight rise in temperature and density as
well as fluctuations in the IMF phi, IMF Bt increased to over 12 nT, and
solar winds increase to just over 400 km/s. Prior to this, solar wind
parameters were at nearly background levels for most of the period.