Solar activity has been low. Newly numbered Region 9329 (S10E50) produced the only notable activity of the day, a C5/Sf event at 29/1540 UTC. Lesser, uncorrelated C-class activity also occurred throughout the period. Region 9321 (S03W57) remains the largest region on the disk, though somewhat reduced in white light area since yesterday, currently in an Eai Beta configuration. Other active regions are little changed from yesterday.

Solar activity is expected to be predominantly low, with a chance of isolated moderate-level activity possible from Region 9321, or Region 9313 (S04W79) as it rotates behind the west limb.

Geomagnetic field activity ranged from quiet to minor storm levels. An isolated period of minor storming was observed at Boulder during 29/0000-0300 UTC, followed by a single active period thereafter. The greater-than-10 MeV proton event which began last period has persisted throughout the day, reaching a maximum flux value of 49 pfu at 29/0655 UTC. An associated polar cap absorption event was reported for the period of 29/0649-1600 UTC, with maximum absorption of 1.9 decibles on the Thule 30Mhz riometer. The proton event remains in progress at the end of period, with a value of about 12 pfu.

Geomagnetic activity is expected to be at mostly quiet to active levels during the first day. Shock arrival from the CME activity of 28 January is expected to arrive on mid-to-late day one, with isolated minor storming possible through day two. Activity is expected to taper off to mainly unsettled levels by day three. The proton event currently in progress is expected to end during day one.

  觀測的       29 Jan 165
  預測的   30 Jan-01 Feb  160/160/155
  90天平均值        29 Jan 173

  觀測的 Afr/Ap 28 Jan  006/006
  估算值     Afr/Ap 29 Jan  013/012
  預測的    Afr/Ap 30 Jan-01 Feb  015/015-020/018-012/010