Solar activity increased to low levels. A long-duration C1 X-ray flare occurred at 26/0820 UTC associated with a prominence eruption on the northeast limb near NE17. A coronal mass ejection was also associated with the eruption, but did not appear to have an Earthward component. Region 8 (S12W29) showed a minor degree of magnetic complexity, but was stable with no significant changes. The remaining regions were stable and simply-structured. Note: yesterday's 90-day mean 10.7 cm flux value of 154 was incorrect. The correct value was 175.

Solar activity is expected to be at very low to low levels.

Geomagnetic field activity was at quiet to unsettled levels.

Geomagnetic field activity is expected to be at quiet to unsettled levels.

  觀測的       26 Jun 144
  預測的   27 Jun-29 Jun  145/145/145
  90天平均值        26 Jun 175

  觀測的 Afr/Ap 25 Jun  008/011
  估算值     Afr/Ap 26 Jun  007/010
  預測的    Afr/Ap 27 Jun-29 Jun  007/008-007/008-008/008