Solar activity was at low levels. A C1 flare was observed late in the period from a source area near N15 on the east solar limb. The flare occurred at 26/2035Z. Several B-class flares during the period were also attributed to this yet visible region in H-alpha. Another full halo CME was observed today on SOHO/LASCO imagery and it appears to be back-sided. The visible disk is currently spotless. No new regions were numbered today.

Solar activity is expected to be at very low to low levels. An active source region that is just beyond the northeast limb appears to have the capability of producing isolated C-class flares.

The geomagnetic field was at quiet to unsettled levels today. Solar winds speeds have dropped to 500 km/sec and it appears the weak coronal hole is waning. The greater than 2 MeV electrons at geosynchronous orbit reached high levels today.

The geomagnetic field is expected to be at quiet to unsettled levels. Isolated active conditions are possible on 28 June due to the CME activity seen yesterday that was related to disappearing solar filaments.

  觀測的       26 Jun 079
  預測的   27 Jun-29 Jun  080/085/085
  90天平均值        26 Jun 093

  觀測的 Afr/Ap 25 Jun  009/011
  估算值     Afr/Ap 26 Jun  008/010
  預測的    Afr/Ap 27 Jun-29 Jun  010/010-012/012-008/008