Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C3 event observed at 02/1315Z from Region 2152 (S16W12). There are currently 6 numbered sunspot regions on the disk.

Solar activity is expected to be low with a chance for M-class flares on days one, two, and three (03 Sep, 04 Sep, 05 Sep).

The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 521 km/s at 02/0825Z. Total IMF reached 6 nT at 02/1646Z. The maximum southward component of Bz reached -5 nT at 02/0439Z. Protons greater than 10 MeV at geosynchronous orbit reached a peak level of 2 pfu at 02/2040Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 6112 pfu.

The geomagnetic field is expected to be at quiet to unsettled levels on days one, two, and three (03 Sep, 04 Sep, 05 Sep).

  觀測的       02 Sep 136
  預測的   03 Sep-05 Sep 140/135/130
  90天平均值        02 Sep 129

  觀測的 Afr/Ap 01 Sep  012/012
  估算值     Afr/Ap 02 Sep  009/010
  預測的    Afr/Ap 03 Sep-05 Sep  008/008-007/010-009/008