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Product: Daily Forecast of Geomagnetic Activity
Issued: 2020 August 25 06:29UTC
Prepared by the Athens Space Weather Forecasting Center
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1. Solar activity
Solar activity was decreasing stable during the past 24 hours.
Solar Flux (10.7 cm) measured on 24.08.2020 at 20:00 UTC was 70 sfu.
The background X-Ray flux is at the class A1.3 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: 355 km/s.
Solar Wind speed from STEREO A: 400 km/s.
Solar Wind speed from STEREO B: --- km/s.
The southward component Bz is: 3 nT north.

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

4. Coronal Holes
A new and small equatorial coronal hole (CH970) was in Earth facing position on August 19-21. An extension of the northern polar coronal hole (CH971) will be in Earth facing position on August 21-22.

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

   Date      Estimated Ap index      Expected geom. storm
2020.08.25           06                        -
2020.08.26           05                        -
2020.08.27           03                        -

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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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