Solar activity was low during the past 24 hours. Region 9727 (S22E16) produced today's largest flare: a C8/2f at 0817 UTC. This region is the most magnetically complex sunspot group on the disk and is showing slow growth. Region 9718 (S06W51) is the largest group on the disk, but has a relatively simple magnetic configuration and did not produce any flare activity. New Region 9732 (N03E64) rotated into view today and showed occasional brightenings. A partial halo CME was observed in coronagraph images today: the event crossed the C2 field of view in about 80-90 minutes, beginning at 1430 UTC. Most of the mass appeared to be over the northwest limb.

Solar activity is expected to be low to moderate. Regions 9727 and 9718 are considered to be the most likely sources for M-class level activity.

The geomagnetic field has been quiet to unsettled during the past 24 hours.

The geomagnetic field is expected to be quiet to unsettled for the next 24 hours, and predominantly unsettled for the 2nd and 3rd days.

  觀測的       07 Dec 226
  預測的   08 Dec-10 Dec  225/220/210
  90天平均值        07 Dec 219

  觀測的 Afr/Ap 06 Dec  010/008
  估算值     Afr/Ap 07 Dec  007/007
  預測的    Afr/Ap 08 Dec-10 Dec  007/008-010/008-012/012