Solar activity was at low levels. C4/Sf flares occurred in Region 9807 (S27E26) at 03/0553 UTC and in Region 9802 (S14W31) at 03/1519 UTC, these being the largest flares for the period. Region 9807 has shown some decay since yesterday in spot complex. The beta-gamma-delta magnetic structure in Region 9802 remains intact. Region 9800 had no optically correlated flares today and continues to show decay in both umbral coverage and magnetic complexity. New Regions 9813 (S24W13), 9814 (N07E15), and 9815 (N12E70) were numbered today.

Solar activity is expected to be at predominantly low to moderate levels. A slight chance for major flare activity is possible.

The geomagnetic field activity was at quiet to unsettled levels.

The geomagnetic field activity is expected to be quiet to unsettled through days one and two of the forecast period. Day three may see active levels with possible minor storm conditions due to the onset of a favorably positioned coronal hole.

  觀測的       03 Feb 233
  預測的   04 Feb-06 Feb  235/230/225
  90天平均值        03 Feb 225

  觀測的 Afr/Ap 02 Feb  014/018
  估算值     Afr/Ap 03 Feb  005/006
  預測的    Afr/Ap 04 Feb-06 Feb  005/005-005/005-010/015