Solar activity has been low. Region 39 (S16E34) produced a long duration C2 at 25/0921 UTC which was observed in the SOHO EIT imagery. Region 39 continues to maintain a magnetic delta configuration. Region 36 (S07W54) continues to produce C-class events and retains its beta-gamma magnetic structure. A new region was numbered today as Region 47 (N07W48).

Solar activity is expected to be low to moderate. A major flare is possible from Regions 36 and 39.

The geomagnetic field has been quiet to unsettled. A weak shock passed the ACE spacecraft at 25/1300 UTC. This shock is believed related to the full halo CME on 23 July. The level of disturbance in the geomagnetic field following the shock was below expectation. The greater than 10 MeV proton event that started 22/0655 UTC is still in progress with the tentative maximum of 28 pfu at 23/1025 UTC. The energetic electron fluxes at geosynchronous orbit were at high levels today.

The geomagnetic field is expected to be quiet to unsettled. Isolated active periods are possible due to the activity over the past several days. The greater than 10 MeV proton event is expected to continue for the next 24 hours. The energetic electron fluxes at geosynchronous orbit are expected to remain at high levels for the next several days.

  觀測的       25 Jul 218
  預測的   26 Jul-28 Jul  220/220/225
  90天平均值        25 Jul 162

  觀測的 Afr/Ap 24 Jul  008/012
  估算值     Afr/Ap 25 Jul  012/013
  預測的    Afr/Ap 26 Jul-28 Jul  015/015-010/010-010/010