Solar activity was very low. No flares occurred during the past 24 hours. Region 1023 (S23E01) continues to be the only spotted region on the disk and was stable and quiet.

Solar activity is expected to be very low.

The geomagnetic field ranged from quiet to active levels during the past 24 hours. In particular, active periods were observed between 0300-0900Z and 1800-2100Z. Solar wind signatures showed a change to slightly disturbed conditions beginning around 0300Z and lasting through the period: the magnetic field intensity increased, the Bz component of the solar wind showed occasional moderate fluctuations with peak negative values around -10 nT early in the day, and around -20 nT later in the day. In addition the spiral angle phi indicated two possible sector boundary changes. During the last 12 hours of the period solar wind velocity was gradually increasing. The signatures late in the day were consistent with the onset of a coronal hole high speed stream.

The geomagnetic field is expected to be generally unsettled with a chance for active periods for the first day (25 June) as the current disturbance continues. Activity levels are expected to decline to generally quiet levels for the second and third days (26-27 June).

  Geobserveerd       24 Jun 067
  Voorspeld   25 Jun-27 Jun  068/068/068
  90 dagen gemiddelde        24 Jun 070

  Geobserveerd Afr/Ap 23 Jun  005/004
  Geraamd     Afr/Ap 24 Jun  012/011
  Voorspeld    Afr/Ap 25 Jun-27 Jun  008/008-005/005-005/005