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Product: Daily Forecast of Geomagnetic Activity
Issued: 2018 August 25 07:01UTC
Prepared by the Athens Space Weather Forecasting Center
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1. Solar activity
Solar activity was almost stable during the past 24 hours.
Solar Flux (10.7 cm) measured on 24.08.2018 at 20:00 UTC was 72 sfu.
The background X-Ray flux is at the class A2 level.
The geomagnetic field was at very quiet levels on August 24.
No obviously Earth directed CMEs were observed in available LASCO imagery.
The Kp index now is at quiet levels with Kp=1.

2. Solar Wind Geomagnetic Activity
Solar Wind speed from ACE: 430 km/s.
Solar Wind speed from STEREO A: 340 km/s.
Solar Wind speed from STEREO B: --- km/s.
The southward component Bz is: 6 nT north.

3. Solar Energetic Particle Events
Protons and electrons are quiet.

4. Coronal Holes
No obvious coronal holes are currently in the visible solar disk.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled, with a chance for active intrevals, on August 25, at quiet to unsettled levels on August 26 and at quiet levels on August 27.

   Date      Estimated Ap index      Expected geom. storm
2018.08.25           07                        -
2018.08.26           06                        -
2018.08.27           04                        -

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Athens Space Weather Forecasting Center
Physics Department, National & Kapodistrian University of Athens
Athens Neutron Monitor Station A.NE.MO.S
Tel.: +30 210 727 6901
email: spaceweather@phys.uoa.gr
URL: http://spaceweather.phys.uoa.gr
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