Solar activity has been low. The largest event of the day was an optically uncorrelated C3 flare at 30/0055 UTC. Three new regions were numbered today: 9330 (N24E67), 9331 (N13E27), and 9332 (N08E24). Region 9330 has produced some low-level subfaint C-class activity as it rotated into view on the east limb. Regions 9331 and 9332 both emerged with rapid development (currently in Dao-Beta and Cso-Beta configurations, respectively) but have yet to produce significant flare activity.

Solar activity is expected to be low, with a chance for isolated moderate-level activity from the newly numbered regions described above, as well as Region 9321 (S06W51), which remains the largest active region on the disk.

The geomagnetic field has been quiet, with an isolated unsettled period observed during 30/0300-0600 UTC. The greater-than-10 MeV proton event, in progress at the end of last period, ended at 30/0035 UTC.

Geomagnetic activity is expected to be at quiet to unsettled levels, until the anticipated shock arrival from the CME activity observed on January 28. Originating event characteristics, associated proton event, interplanetary particle data profiles from the ACE EPAM instrument, and predictive model results are all consistent with a likely shock passage at earth within the next day or so. Active and isolated minor storming levels are more likely in the geomagnetic field thereafter, on January 31 and into February 1. Diminished activity to predominantly unsettled levels are expected by February 2.

  觀測的       30 Jan 160
  預測的   31 Jan-02 Feb  160/155/160
  90天平均值        30 Jan 173

  觀測的 Afr/Ap 29 Jan  016/013
  估算值     Afr/Ap 30 Jan  004/005
  預測的    Afr/Ap 31 Jan-02 Feb  020/015-012/010-007/005