Solar activity was low. An optically uncorrelated C6 X-ray flare at 12/1425Z was the most energetic event of the day. Region 242 (S07W75) was the most active region on the disk, producing frequent plage fluctuations and occasional low C-class flares as it approaches the west limb. Minor C-class flares were also observed in Regions 244 (S22W71) and 247 (S16W07). It became more evident this period that Region 251 (S14E24) contained two distinct bipoles; consequently, this region was separated with new Region number 255 (S13E13) assigned to the large westernmost spot. It also became clear that the trailing spots in Region 254 (S16E44) make up a distinct bipole and were numbered as Region 256 (S17E55).

Solar activity is expected to be low to moderate. There is a small chance for an isolated M-class flare, primarily from Region 242.

The geomagnetic field was quiet to unsettled.

The geomagnetic field is expected to be mostly quiet with isolated unsettled periods.

  觀測的       12 Jan 173
  預測的   13 Jan-15 Jan  170/165/160
  90天平均值        12 Jan 164

  觀測的 Afr/Ap 11 Jan  009/010
  估算值     Afr/Ap 12 Jan  008/010
  預測的    Afr/Ap 13 Jan-15 Jan  005/008-005/010-010/010