Solar activity was at moderate levels. Region 9754 (S07W68) generated the largest flare of the day, producing an M2/1n flare at 02/1252 UTC. This region grew in magnetic complexity during the period and exhibits a much tighter spot cluster than was seen yesterday in white light. Regions 9764 (N14W50) and 9751 (N04W89) also contributed to today's activity producing small C-class flares. Region 9767 (S23E36) has been relatively quiescent through the period producing a lone optical Sf flare. A decrease in area was seen in spot coverage during the period, although magnetic structure remained unchanged in Region 9767. New Regions 9769 (S19W33), 9770 (N08W29), and 9771 (S20E17) were numbered today.

Solar activity is expected to be at moderate levels.

The geomagnetic field has been at quiet to unsettled levels. The greater than 10 MeV proton event that began at 30/0245 UTC reached a maximum flux of 108 pfu at 31/1620 UTC. This event has been on a very slow decrease since max and is at 33 pfu at the time of this writing.

The geomagnetic field is expected to remain at quiet to unsettled levels. The greater than 10 MeV proton event is expected to end late on day two of the forecast.

  觀測的       02 Jan 231
  預測的   03 Jan-05 Jan  230/230/225
  90天平均值        02 Jan 220

  觀測的 Afr/Ap 01 Jan  004/007
  估算值     Afr/Ap 02 Jan  005/008
  預測的    Afr/Ap 03 Jan-05 Jan  005/008-006/008-006/008